diff --git a/kexec-tools-2.0.22-01-s390_handle_R_390_PLT32DBL_reloc_entries_in_machine_apply_elf_rel_.patch b/kexec-tools-2.0.22-01-s390_handle_R_390_PLT32DBL_reloc_entries_in_machine_apply_elf_rel_.patch deleted file mode 100644 index 10bc5ef..0000000 --- a/kexec-tools-2.0.22-01-s390_handle_R_390_PLT32DBL_reloc_entries_in_machine_apply_elf_rel_.patch +++ /dev/null @@ -1,95 +0,0 @@ -commit 186e7b0752d8fce1618fa37519671c834c46340e -Author: Alexander Egorenkov -Date: Wed Dec 15 18:48:53 2021 +0100 - - s390: handle R_390_PLT32DBL reloc entries in machine_apply_elf_rel() - - Starting with gcc 11.3, the C compiler will generate PLT-relative function - calls even if they are local and do not require it. Later on during linking, - the linker will replace all PLT-relative calls to local functions with - PC-relative ones. Unfortunately, the purgatory code of kexec/kdump is - not being linked as a regular executable or shared library would have been, - and therefore, all PLT-relative addresses remain in the generated purgatory - object code unresolved. This in turn lets kexec-tools fail with - "Unknown rela relocation: 0x14 0x73c0901c" for such relocation types. - - Furthermore, the clang C compiler has always behaved like described above - and this commit should fix the purgatory code built with the latter. - - Because the purgatory code is no regular executable or shared library, - contains only calls to local functions and has no PLT, all R_390_PLT32DBL - relocation entries can be resolved just like a R_390_PC32DBL one. - - * https://refspecs.linuxfoundation.org/ELF/zSeries/lzsabi0_zSeries/x1633.html#AEN1699 - - Relocation entries of purgatory code generated with gcc 11.3 - ------------------------------------------------------------ - - $ readelf -r purgatory/purgatory.o - - Relocation section '.rela.text' at offset 0x6e8 contains 27 entries: - Offset Info Type Sym. Value Sym. Name + Addend - 00000000000c 000300000013 R_390_PC32DBL 0000000000000000 .data + 2 - 00000000001a 001000000014 R_390_PLT32DBL 0000000000000000 sha256_starts + 2 - 000000000030 001100000014 R_390_PLT32DBL 0000000000000000 sha256_update + 2 - 000000000046 001200000014 R_390_PLT32DBL 0000000000000000 sha256_finish + 2 - 000000000050 000300000013 R_390_PC32DBL 0000000000000000 .data + 102 - 00000000005a 001300000014 R_390_PLT32DBL 0000000000000000 memcmp + 2 - ... - 000000000118 001600000014 R_390_PLT32DBL 0000000000000000 setup_arch + 2 - 00000000011e 000300000013 R_390_PC32DBL 0000000000000000 .data + 2 - 00000000012c 000f00000014 R_390_PLT32DBL 0000000000000000 verify_sha256_digest + 2 - 000000000142 001700000014 R_390_PLT32DBL 0000000000000000 - post_verification[...] + 2 - - Relocation entries of purgatory code generated with gcc 11.2 - ------------------------------------------------------------ - - $ readelf -r purgatory/purgatory.o - - Relocation section '.rela.text' at offset 0x6e8 contains 27 entries: - Offset Info Type Sym. Value Sym. Name + Addend - 00000000000e 000300000013 R_390_PC32DBL 0000000000000000 .data + 2 - 00000000001c 001000000013 R_390_PC32DBL 0000000000000000 sha256_starts + 2 - 000000000036 001100000013 R_390_PC32DBL 0000000000000000 sha256_update + 2 - 000000000048 001200000013 R_390_PC32DBL 0000000000000000 sha256_finish + 2 - 000000000052 000300000013 R_390_PC32DBL 0000000000000000 .data + 102 - 00000000005c 001300000013 R_390_PC32DBL 0000000000000000 memcmp + 2 - ... - 00000000011a 001600000013 R_390_PC32DBL 0000000000000000 setup_arch + 2 - 000000000120 000300000013 R_390_PC32DBL 0000000000000000 .data + 122 - 000000000130 000f00000013 R_390_PC32DBL 0000000000000000 verify_sha256_digest + 2 - 000000000146 001700000013 R_390_PC32DBL 0000000000000000 post_verification[...] + 2 - - Corresponding s390 kernel discussion: - * https://lore.kernel.org/linux-s390/20211208105801.188140-1-egorenar@linux.ibm.com/T/#u - - Signed-off-by: Alexander Egorenkov - Reported-by: Tao Liu - Suggested-by: Philipp Rudo - Reviewed-by: Philipp Rudo - [hca@linux.ibm.com: changed commit message as requested by Philipp Rudo] - Signed-off-by: Heiko Carstens - Signed-off-by: Simon Horman - -diff --git a/kexec/arch/s390/kexec-elf-rel-s390.c b/kexec/arch/s390/kexec-elf-rel-s390.c -index a5e1b73455785ae3bc3aa72b3beee13ae202e82f..91ba86a9991dad4271b834fc3b24861c40309e52 100644 ---- a/kexec/arch/s390/kexec-elf-rel-s390.c -+++ b/kexec/arch/s390/kexec-elf-rel-s390.c -@@ -56,6 +56,7 @@ void machine_apply_elf_rel(struct mem_ehdr *UNUSED(ehdr), - case R_390_PC16: /* PC relative 16 bit. */ - case R_390_PC16DBL: /* PC relative 16 bit shifted by 1. */ - case R_390_PC32DBL: /* PC relative 32 bit shifted by 1. */ -+ case R_390_PLT32DBL: /* 32 bit PC rel. PLT shifted by 1. */ - case R_390_PC32: /* PC relative 32 bit. */ - case R_390_PC64: /* PC relative 64 bit. */ - val -= address; -@@ -63,7 +64,7 @@ void machine_apply_elf_rel(struct mem_ehdr *UNUSED(ehdr), - *(unsigned short *) loc = val; - else if (r_type == R_390_PC16DBL) - *(unsigned short *) loc = val >> 1; -- else if (r_type == R_390_PC32DBL) -+ else if (r_type == R_390_PC32DBL || r_type == R_390_PLT32DBL) - *(unsigned int *) loc = val >> 1; - else if (r_type == R_390_PC32) - *(unsigned int *) loc = val; diff --git a/kexec-tools-2.0.23-01-_PATCH_v2_1_3_add_generic_cycle_detection.patch b/kexec-tools-2.0.23-01-_PATCH_v2_1_3_add_generic_cycle_detection.patch deleted file mode 100644 index 4ecbc58..0000000 --- a/kexec-tools-2.0.23-01-_PATCH_v2_1_3_add_generic_cycle_detection.patch +++ /dev/null @@ -1,191 +0,0 @@ - commit feae3d1754d2b0788ce1f18b0cd4b40098ff52ff - Author: Philipp Rudo - Date: Mon Mar 14 17:04:29 2022 +0100 - - [PATCH v2 1/3] add generic cycle detection - - In order to work makedumpfile needs to interpret data read from the - dump. This can cause problems as the data from the dump cannot be - trusted (otherwise the kernel wouldn't have panicked in the first - place). This also means that every loop which stop condition depend on - data read from the dump has a chance to loop forever. Thus add a generic - cycle detection mechanism that allows to detect and handle such - situations appropriately. - - For cycle detection use Brent's algorithm [1] as it has constant memory - usage. With this it can also be used in the kdump kernel without the - danger that it runs oom when iterating large data structures. - Furthermore it only depends on some pointer arithmetic. Thus the - performance impact (as long as no cycle was detected) should be - comparatively small. - - [1] https://en.wikipedia.org/wiki/Cycle_detection#Brent's_algorithm - - Suggested-by: Dave Wysochanski - Signed-off-by: Philipp Rudo - Reviewed-and-tested-by: Dave Wysochanski - - diff --git a/makedumpfile-1.7.0/Makefile b/makedumpfile-1.7.0/Makefile - index f118b31e45989d9590ae075fb9b8ed2f27353a92..3441364cb6c7103a20072bd50ec58f1eed01ab69 100644 - --- a/makedumpfile-1.7.0/Makefile - +++ b/makedumpfile-1.7.0/Makefile - @@ -45,7 +45,7 @@ CFLAGS_ARCH += -m32 - endif - - SRC_BASE = makedumpfile.c makedumpfile.h diskdump_mod.h sadump_mod.h sadump_info.h - -SRC_PART = print_info.c dwarf_info.c elf_info.c erase_info.c sadump_info.c cache.c tools.c printk.c - +SRC_PART = print_info.c dwarf_info.c elf_info.c erase_info.c sadump_info.c cache.c tools.c printk.c detect_cycle.c - OBJ_PART=$(patsubst %.c,%.o,$(SRC_PART)) - SRC_ARCH = arch/arm.c arch/arm64.c arch/x86.c arch/x86_64.c arch/ia64.c arch/ppc64.c arch/s390x.c arch/ppc.c arch/sparc64.c arch/mips64.c - OBJ_ARCH=$(patsubst %.c,%.o,$(SRC_ARCH)) - diff --git a/makedumpfile-1.7.0/detect_cycle.c b/makedumpfile-1.7.0/detect_cycle.c - new file mode 100644 - index 0000000000000000000000000000000000000000..6b551a75d1c83d64fba2c078be8133efbc791fbe - --- /dev/null - +++ b/makedumpfile-1.7.0/detect_cycle.c - @@ -0,0 +1,99 @@ - +/* - + * detect_cycle.c -- Generic cycle detection using Brent's algorithm - + * - + * Created by: Philipp Rudo - + * - + * Copyright (c) 2022 Red Hat, Inc. All rights reserved. - + * - + * This program is free software; you can redistribute it and/or modify - + * it under the terms of the GNU General Public License as published by - + * the Free Software Foundation; either version 2 of the License, or - + * (at your option) any later version. - + * - + * This program is distributed in the hope that it will be useful, - + * but WITHOUT ANY WARRANTY; without even the implied warranty of - + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - + * GNU General Public License for more details. - + */ - + - +#include - + - +#include "detect_cycle.h" - + - +struct detect_cycle { - + /* First entry of the list */ - + void *head; - + - + /* Variables required by Brent's algorithm */ - + void *fast_p; - + void *slow_p; - + unsigned long length; - + unsigned long power; - + - + /* Function to get the next entry in the list */ - + dc_next_t next; - + - + /* Private data passed to next */ - + void *data; - +}; - + - +struct detect_cycle *dc_init(void *head, void *data, dc_next_t next) - +{ - + struct detect_cycle *new; - + - + new = malloc(sizeof(*new)); - + if (!new) - + return NULL; - + - + new->next = next; - + new->data = data; - + - + new->head = head; - + new->slow_p = head; - + new->fast_p = head; - + new->length = 0; - + new->power = 2; - + - + return new; - +} - + - +int dc_next(struct detect_cycle *dc, void **next) - +{ - + - + if (dc->length == dc->power) { - + dc->length = 0; - + dc->power *= 2; - + dc->slow_p = dc->fast_p; - + } - + - + dc->fast_p = dc->next(dc->fast_p, dc->data); - + dc->length++; - + - + if (dc->slow_p == dc->fast_p) - + return 1; - + - + *next = dc->fast_p; - + return 0; - +} - + - +void dc_find_start(struct detect_cycle *dc, void **first, unsigned long *len) - +{ - + void *slow_p, *fast_p; - + unsigned long tmp; - + - + slow_p = fast_p = dc->head; - + tmp = dc->length; - + - + while (tmp) { - + fast_p = dc->next(fast_p, dc->data); - + tmp--; - + } - + - + while (slow_p != fast_p) { - + slow_p = dc->next(slow_p, dc->data); - + fast_p = dc->next(fast_p, dc->data); - + } - + - + *first = slow_p; - + *len = dc->length; - +} - diff --git a/makedumpfile-1.7.0/detect_cycle.h b/makedumpfile-1.7.0/detect_cycle.h - new file mode 100644 - index 0000000000000000000000000000000000000000..2ca75c78b59a98274fc5a98666b1be74f7bbfc2c - --- /dev/null - +++ b/makedumpfile-1.7.0/detect_cycle.h - @@ -0,0 +1,40 @@ - +/* - + * detect_cycle.h -- Generic cycle detection using Brent's algorithm - + * - + * Created by: Philipp Rudo - + * - + * Copyright (c) 2022 Red Hat, Inc. All rights reserved. - + * - + * This program is free software; you can redistribute it and/or modify - + * it under the terms of the GNU General Public License as published by - + * the Free Software Foundation; either version 2 of the License, or - + * (at your option) any later version. - + * - + * This program is distributed in the hope that it will be useful, - + * but WITHOUT ANY WARRANTY; without even the implied warranty of - + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - + * GNU General Public License for more details. - + */ - + - +struct detect_cycle; - + - +typedef void *(*dc_next_t)(void *prev, void *data); - + - +/* - + * Initialize cycle detection. - + * Returns a pointer to allocated struct detect_cycle. The caller is - + * responsible to free the memory after use. - + */ - +struct detect_cycle *dc_init(void *head, void *data, dc_next_t next); - + - +/* - + * Get next entry in the list using dc->next. - + * Returns 1 when cycle was detected, 0 otherwise. - + */ - +int dc_next(struct detect_cycle *dc, void **next); - + - +/* - + * Get the start and length of the cycle. Must only be called after cycle was - + * detected by dc_next. - + */ - +void dc_find_start(struct detect_cycle *dc, void **first, unsigned long *len); diff --git a/kexec-tools-2.0.23-01-s390_add_variable_command_line_size.patch b/kexec-tools-2.0.23-01-s390_add_variable_command_line_size.patch deleted file mode 100644 index 31b9840..0000000 --- a/kexec-tools-2.0.23-01-s390_add_variable_command_line_size.patch +++ /dev/null @@ -1,224 +0,0 @@ - commit defb80a20bf1e4d778596ce2447e19d44f31ae5a - Author: Sven Schnelle - Date: Thu Dec 16 12:43:52 2021 +0100 - - s390: add variable command line size - - Newer s390 kernels support a command line size longer than 896 - bytes. Such kernels contain a new member in the parameter area, - which might be utilized by tools like kexec. Older kernels have - the location initialized to zero, so we check whether there's a - non-zero number present and use that. If there isn't, we fallback - to the legacy command line size of 896 bytes. - - Signed-off-by: Sven Schnelle - Reviewed-by: Alexander Egorenkov - Signed-off-by: Simon Horman - - diff --git a/kexec/arch/s390/crashdump-s390.c b/kexec/arch/s390/crashdump-s390.c - index 10f4d607bbcc1aea362de3de687b0e7b2401d879..3bd9efe6dafebab2f364c656ae703c71c4494c35 100644 - --- a/kexec/arch/s390/crashdump-s390.c - +++ b/kexec/arch/s390/crashdump-s390.c - @@ -52,7 +52,8 @@ static int create_elf_header(struct kexec_info *info, unsigned long crash_base, - elfcorehdr_size = bufsz; - snprintf(str, sizeof(str), " elfcorehdr=%ld@%ldK\n", - elfcorehdr_size, elfcorehdr / 1024); - - command_line_add(str); - + if (command_line_add(info, str)) - + return -1; - #endif - return 0; - } - diff --git a/kexec/arch/s390/kexec-image.c b/kexec/arch/s390/kexec-image.c - index 3c24fdfe3c7ccafddee9fb4a68c0d8874cf6a61e..a52399eafd2abd4a24142f0512251598ea812ca5 100644 - --- a/kexec/arch/s390/kexec-image.c - +++ b/kexec/arch/s390/kexec-image.c - @@ -25,7 +25,6 @@ - #include - - static uint64_t crash_base, crash_end; - -static char command_line[COMMAND_LINESIZE]; - - static void add_segment_check(struct kexec_info *info, const void *buf, - size_t bufsz, unsigned long base, size_t memsz) - @@ -36,13 +35,18 @@ static void add_segment_check(struct kexec_info *info, const void *buf, - add_segment(info, buf, bufsz, crash_base + base, memsz); - } - - -int command_line_add(const char *str) - +int command_line_add(struct kexec_info *info, const char *str) - { - - if (strlen(command_line) + strlen(str) + 1 > COMMAND_LINESIZE) { - - fprintf(stderr, "Command line too long.\n"); - + char *tmp = NULL; - + - + tmp = concat_cmdline(info->command_line, str); - + if (!tmp) { - + fprintf(stderr, "out of memory\n"); - return -1; - } - - strcat(command_line, str); - + - + free(info->command_line); - + info->command_line = tmp; - return 0; - } - - @@ -64,7 +68,7 @@ int image_s390_load_file(int argc, char **argv, struct kexec_info *info) - while ((opt = getopt_long(argc, argv, short_options, options, 0)) != -1) { - switch(opt) { - case OPT_APPEND: - - if (command_line_add(optarg)) - + if (command_line_add(info, optarg)) - return -1; - break; - case OPT_RAMDISK: - @@ -78,13 +82,16 @@ int image_s390_load_file(int argc, char **argv, struct kexec_info *info) - if (info->initrd_fd == -1) { - fprintf(stderr, "Could not open initrd file %s:%s\n", - ramdisk, strerror(errno)); - + free(info->command_line); - + info->command_line = NULL; - return -1; - } - } - - - info->command_line = command_line; - - info->command_line_len = strlen (command_line) + 1; - - - + if (info->command_line) - + info->command_line_len = strlen(info->command_line) + 1; - + else - + info->command_line_len = 0; - return 0; - } - - @@ -97,7 +104,7 @@ image_s390_load(int argc, char **argv, const char *kernel_buf, - const char *ramdisk; - off_t ramdisk_len; - unsigned int ramdisk_origin; - - int opt; - + int opt, ret = -1; - - if (info->file_mode) - return image_s390_load_file(argc, argv, info); - @@ -112,7 +119,6 @@ image_s390_load(int argc, char **argv, const char *kernel_buf, - }; - static const char short_options[] = KEXEC_OPT_STR ""; - - - command_line[0] = 0; - ramdisk = NULL; - ramdisk_len = 0; - ramdisk_origin = 0; - @@ -120,7 +126,7 @@ image_s390_load(int argc, char **argv, const char *kernel_buf, - while ((opt = getopt_long(argc,argv,short_options,options,0)) != -1) { - switch(opt) { - case OPT_APPEND: - - if (command_line_add(optarg)) - + if (command_line_add(info, optarg)) - return -1; - break; - case OPT_RAMDISK: - @@ -132,7 +138,7 @@ image_s390_load(int argc, char **argv, const char *kernel_buf, - if (info->kexec_flags & KEXEC_ON_CRASH) { - if (parse_iomem_single("Crash kernel\n", &crash_base, - &crash_end)) - - return -1; - + goto out; - } - - /* Add kernel segment */ - @@ -151,7 +157,7 @@ image_s390_load(int argc, char **argv, const char *kernel_buf, - rd_buffer = slurp_file_mmap(ramdisk, &ramdisk_len); - if (rd_buffer == NULL) { - fprintf(stderr, "Could not read ramdisk.\n"); - - return -1; - + goto out; - } - ramdisk_origin = MAX(RAMDISK_ORIGIN_ADDR, kernel_size); - ramdisk_origin = _ALIGN_UP(ramdisk_origin, 0x100000); - @@ -160,7 +166,7 @@ image_s390_load(int argc, char **argv, const char *kernel_buf, - } - if (info->kexec_flags & KEXEC_ON_CRASH) { - if (load_crashdump_segments(info, crash_base, crash_end)) - - return -1; - + goto out; - } else { - info->entry = (void *) IMAGE_READ_OFFSET; - } - @@ -183,15 +189,28 @@ image_s390_load(int argc, char **argv, const char *kernel_buf, - *tmp = crash_end - crash_base + 1; - } - } - - /* - - * We will write a probably given command line. - - * First, erase the old area, then setup the new parameters: - - */ - - if (strlen(command_line) != 0) { - - memset(krnl_buffer + COMMAND_LINE_OFFS, 0, COMMAND_LINESIZE); - - memcpy(krnl_buffer + COMMAND_LINE_OFFS, command_line, strlen(command_line)); - + - + if (info->command_line) { - + unsigned long maxsize; - + char *dest = krnl_buffer + COMMAND_LINE_OFFS; - + - + maxsize = *(unsigned long *)(krnl_buffer + MAX_COMMAND_LINESIZE_OFFS); - + if (!maxsize) - + maxsize = LEGACY_COMMAND_LINESIZE; - + - + if (strlen(info->command_line) > maxsize-1) { - + fprintf(stderr, "command line too long, maximum allowed size %ld\n", - + maxsize-1); - + goto out; - + } - + strncpy(dest, info->command_line, maxsize-1); - + dest[maxsize-1] = '\0'; - } - - return 0; - + ret = 0; - +out: - + free(info->command_line); - + info->command_line = NULL; - + return ret; - } - - int - diff --git a/kexec/arch/s390/kexec-s390.h b/kexec/arch/s390/kexec-s390.h - index ef53b111e16719d15e5364c18435e272f98b9086..6a99518c1c9e411ed853489daf0de6463972ab6f 100644 - --- a/kexec/arch/s390/kexec-s390.h - +++ b/kexec/arch/s390/kexec-s390.h - @@ -10,16 +10,17 @@ - #ifndef KEXEC_S390_H - #define KEXEC_S390_H - - -#define IMAGE_READ_OFFSET 0x10000 - +#define IMAGE_READ_OFFSET 0x10000 - - -#define RAMDISK_ORIGIN_ADDR 0x800000 - -#define INITRD_START_OFFS 0x408 - -#define INITRD_SIZE_OFFS 0x410 - -#define OLDMEM_BASE_OFFS 0x418 - -#define OLDMEM_SIZE_OFFS 0x420 - -#define COMMAND_LINE_OFFS 0x480 - -#define COMMAND_LINESIZE 896 - -#define MAX_MEMORY_RANGES 1024 - +#define RAMDISK_ORIGIN_ADDR 0x800000 - +#define INITRD_START_OFFS 0x408 - +#define INITRD_SIZE_OFFS 0x410 - +#define OLDMEM_BASE_OFFS 0x418 - +#define OLDMEM_SIZE_OFFS 0x420 - +#define MAX_COMMAND_LINESIZE_OFFS 0x430 - +#define COMMAND_LINE_OFFS 0x480 - +#define LEGACY_COMMAND_LINESIZE 896 - +#define MAX_MEMORY_RANGES 1024 - - #define MAX(x, y) ((x) > (y) ? (x) : (y)) - #define MIN(x, y) ((x) < (y) ? (x) : (y)) - @@ -32,6 +33,6 @@ extern int load_crashdump_segments(struct kexec_info *info, - unsigned long crash_end); - extern int get_memory_ranges_s390(struct memory_range range[], int *ranges, - int with_crashk); - -extern int command_line_add(const char *str); - +extern int command_line_add(struct kexec_info *info, const char *str); - - #endif /* KEXEC_S390_H */ diff --git a/kexec-tools-2.0.23-02-_PATCH_v2_2_3_use_pointer_arithmetics_for_dump_dmesg.patch b/kexec-tools-2.0.23-02-_PATCH_v2_2_3_use_pointer_arithmetics_for_dump_dmesg.patch deleted file mode 100644 index aedead0..0000000 --- a/kexec-tools-2.0.23-02-_PATCH_v2_2_3_use_pointer_arithmetics_for_dump_dmesg.patch +++ /dev/null @@ -1,102 +0,0 @@ - commit e1d2e5302b016c6f7942f46ffa27aa31326686c5 - Author: Philipp Rudo - Date: Mon Mar 14 17:04:30 2022 +0100 - - [PATCH v2 2/3] use pointer arithmetics for dump_dmesg - - When parsing the printk buffer for the old printk mechanism (> v3.5.0+ and - < 5.10.0) a log entry is currently specified by the offset into the - buffer where the entry starts. Change this to use a pointers instead. - This is done in preparation for using the new cycle detection mechanism. - - Signed-off-by: Philipp Rudo - Reviewed-and-tested-by: Dave Wysochanski - Signed-off-by: Kazuhito Hagio - - diff --git a/makedumpfile-1.7.0/makedumpfile.c b/makedumpfile-1.7.0/makedumpfile.c - index 7ed9756a8c43ae4a2b6770e86dc81763796c2187..e72dba219eec198ec865045562f39a14b5a092eb 100644 - --- a/makedumpfile-1.7.0/makedumpfile.c - +++ b/makedumpfile-1.7.0/makedumpfile.c - @@ -5482,13 +5482,10 @@ dump_log_entry(char *logptr, int fp, const char *file_name) - * get log record by index; idx must point to valid message. - */ - static char * - -log_from_idx(unsigned int idx, char *logbuf) - +log_from_ptr(char *logptr, char *logbuf) - { - - char *logptr; - unsigned int msglen; - - - logptr = logbuf + idx; - - - /* - * A length == 0 record is the end of buffer marker. - * Wrap around and return the message at the start of - @@ -5497,19 +5494,16 @@ log_from_idx(unsigned int idx, char *logbuf) - - msglen = USHORT(logptr + OFFSET(printk_log.len)); - if (!msglen) - - logptr = logbuf; - + return logbuf; - - return logptr; - } - - -static long - -log_next(unsigned int idx, char *logbuf) - +static void * - +log_next(void *logptr, void *logbuf) - { - - char *logptr; - unsigned int msglen; - - - logptr = logbuf + idx; - - - /* - * A length == 0 record is the end of buffer marker. Wrap around and - * read the message at the start of the buffer as *this* one, and - @@ -5519,10 +5513,10 @@ log_next(unsigned int idx, char *logbuf) - msglen = USHORT(logptr + OFFSET(printk_log.len)); - if (!msglen) { - msglen = USHORT(logbuf + OFFSET(printk_log.len)); - - return msglen; - + return logbuf + msglen; - } - - - return idx + msglen; - + return logptr + msglen; - } - - int - @@ -5530,11 +5524,12 @@ dump_dmesg() - { - int log_buf_len, length_log, length_oldlog, ret = FALSE; - unsigned long index, log_buf, log_end; - - unsigned int idx, log_first_idx, log_next_idx; - + unsigned int log_first_idx, log_next_idx; - unsigned long long first_idx_sym; - unsigned long log_end_2_6_24; - unsigned log_end_2_6_25; - char *log_buffer = NULL, *log_ptr = NULL; - + char *ptr; - - /* - * log_end has been changed to "unsigned" since linux-2.6.25. - @@ -5681,13 +5676,13 @@ dump_dmesg() - ERRMSG("Can't open output file.\n"); - goto out; - } - - idx = log_first_idx; - - while (idx != log_next_idx) { - - log_ptr = log_from_idx(idx, log_buffer); - + ptr = log_buffer + log_first_idx; - + while (ptr != log_buffer + log_next_idx) { - + log_ptr = log_from_ptr(ptr, log_buffer); - if (!dump_log_entry(log_ptr, info->fd_dumpfile, - info->name_dumpfile)) - goto out; - - idx = log_next(idx, log_buffer); - + ptr = log_next(ptr, log_buffer); - } - if (!close_files_for_creating_dumpfile()) - goto out; diff --git a/kexec-tools-2.0.23-02-s390_use_KEXEC_ALL_OPTIONS.patch b/kexec-tools-2.0.23-02-s390_use_KEXEC_ALL_OPTIONS.patch deleted file mode 100644 index 5bbca90..0000000 --- a/kexec-tools-2.0.23-02-s390_use_KEXEC_ALL_OPTIONS.patch +++ /dev/null @@ -1,43 +0,0 @@ - commit 91a3d0e00a5c18ee9bdd2c6c03ac64a6471e2559 - Author: Sven Schnelle - Date: Thu Dec 16 12:43:53 2021 +0100 - - s390: use KEXEC_ALL_OPTIONS - - KEXEC_ALL_OPTIONS could be used instead defining the same - array several times. This makes code easier to maintain when - new options are added. - - Suggested-by: Alexander Egorenkov - Signed-off-by: Sven Schnelle - Reviewed-by: Alexander Egorenkov - Signed-off-by: Simon Horman - - diff --git a/kexec/arch/s390/kexec-image.c b/kexec/arch/s390/kexec-image.c - index a52399eafd2abd4a24142f0512251598ea812ca5..209ab77ddccbd60f10989e2d9fc273324aefa76d 100644 - --- a/kexec/arch/s390/kexec-image.c - +++ b/kexec/arch/s390/kexec-image.c - @@ -57,10 +57,7 @@ int image_s390_load_file(int argc, char **argv, struct kexec_info *info) - - static const struct option options[] = - { - - KEXEC_OPTIONS - - {"command-line", 1, 0, OPT_APPEND}, - - {"append", 1, 0, OPT_APPEND}, - - {"initrd", 1, 0, OPT_RAMDISK}, - + KEXEC_ALL_OPTIONS - {0, 0, 0, 0}, - }; - static const char short_options[] = KEXEC_OPT_STR ""; - @@ -111,10 +108,7 @@ image_s390_load(int argc, char **argv, const char *kernel_buf, - - static const struct option options[] = - { - - KEXEC_OPTIONS - - {"command-line", 1, 0, OPT_APPEND}, - - {"append", 1, 0, OPT_APPEND}, - - {"initrd", 1, 0, OPT_RAMDISK}, - + KEXEC_ALL_OPTIONS - {0, 0, 0, 0}, - }; - static const char short_options[] = KEXEC_OPT_STR ""; diff --git a/kexec-tools-2.0.23-03-_PATCH_v2_3_3_use_cycle_detection_when_parsing_the_prink_log_buf.patch b/kexec-tools-2.0.23-03-_PATCH_v2_3_3_use_cycle_detection_when_parsing_the_prink_log_buf.patch deleted file mode 100644 index fc70613..0000000 --- a/kexec-tools-2.0.23-03-_PATCH_v2_3_3_use_cycle_detection_when_parsing_the_prink_log_buf.patch +++ /dev/null @@ -1,118 +0,0 @@ - commit 68d120b30af5e930afafed81e79712af3c1a278c - Author: Philipp Rudo - Date: Mon Mar 14 17:04:31 2022 +0100 - - [PATCH v2 3/3] use cycle detection when parsing the prink log_buf - - The old printk mechanism (> v3.5.0 and < v5.10.0) had a fixed size - buffer (log_buf) that contains all messages. The location for the next - message is stored in log_next_idx. In case the log_buf runs full - log_next_idx wraps around and starts overwriting old messages at the - beginning of the buffer. The wraparound is denoted by a message with - msg->len == 0. - - Following the behavior described above blindly in makedumpfile is - dangerous as e.g. a memory corruption could overwrite (parts of) the - log_buf. If the corruption adds a message with msg->len == 0 this leads - to an endless loop when dumping the dmesg with makedumpfile appending - the messages up to the corruption over and over again to the output file - until file system is full. Fix this by using cycle detection and aboard - once one is detected. - - While at it also verify that the index is within the log_buf and thus - guard against corruptions with msg->len != 0. - - Reported-by: Audra Mitchell - Suggested-by: Dave Wysochanski - Signed-off-by: Philipp Rudo - Reviewed-and-tested-by: Dave Wysochanski - - diff --git a/makedumpfile-1.7.0/makedumpfile.c b/makedumpfile-1.7.0/makedumpfile.c - index e72dba219eec198ec865045562f39a14b5a092eb..2b94446b8f2ad513da060e15821544ae32e1a2c6 100644 - --- a/makedumpfile-1.7.0/makedumpfile.c - +++ b/makedumpfile-1.7.0/makedumpfile.c - @@ -15,6 +15,7 @@ - */ - #include "makedumpfile.h" - #include "print_info.h" - +#include "detect_cycle.h" - #include "dwarf_info.h" - #include "elf_info.h" - #include "erase_info.h" - @@ -5526,10 +5527,11 @@ dump_dmesg() - unsigned long index, log_buf, log_end; - unsigned int log_first_idx, log_next_idx; - unsigned long long first_idx_sym; - + struct detect_cycle *dc = NULL; - unsigned long log_end_2_6_24; - unsigned log_end_2_6_25; - char *log_buffer = NULL, *log_ptr = NULL; - - char *ptr; - + char *ptr, *next_ptr; - - /* - * log_end has been changed to "unsigned" since linux-2.6.25. - @@ -5677,12 +5679,55 @@ dump_dmesg() - goto out; - } - ptr = log_buffer + log_first_idx; - + dc = dc_init(ptr, log_buffer, log_next); - while (ptr != log_buffer + log_next_idx) { - log_ptr = log_from_ptr(ptr, log_buffer); - if (!dump_log_entry(log_ptr, info->fd_dumpfile, - info->name_dumpfile)) - goto out; - ptr = log_next(ptr, log_buffer); - + if (dc_next(dc, (void **) &next_ptr)) { - + unsigned long len; - + int in_cycle; - + char *first; - + - + /* Clear everything we have already written... */ - + ftruncate(info->fd_dumpfile, 0); - + lseek(info->fd_dumpfile, 0, SEEK_SET); - + - + /* ...and only write up to the corruption. */ - + dc_find_start(dc, (void **) &first, &len); - + ptr = log_buffer + log_first_idx; - + in_cycle = FALSE; - + while (len) { - + log_ptr = log_from_ptr(ptr, log_buffer); - + if (!dump_log_entry(log_ptr, - + info->fd_dumpfile, - + info->name_dumpfile)) - + goto out; - + ptr = log_next(ptr, log_buffer); - + - + if (log_ptr == first) - + in_cycle = TRUE; - + - + if (in_cycle) - + len--; - + } - + ERRMSG("Cycle when parsing dmesg detected.\n"); - + ERRMSG("The printk log_buf is most likely corrupted.\n"); - + ERRMSG("log_buf = 0x%lx, idx = 0x%lx\n", log_buf, ptr - log_buffer); - + close_files_for_creating_dumpfile(); - + goto out; - + } - + if (next_ptr < log_buffer || - + next_ptr > log_buffer + log_buf_len - SIZE(printk_log)) { - + ERRMSG("Index outside log_buf detected.\n"); - + ERRMSG("The printk log_buf is most likely corrupted.\n"); - + ERRMSG("log_buf = 0x%lx, idx = 0x%lx\n", log_buf, ptr - log_buffer); - + close_files_for_creating_dumpfile(); - + goto out; - + } - + ptr = next_ptr; - } - if (!close_files_for_creating_dumpfile()) - goto out; - @@ -5692,6 +5737,7 @@ dump_dmesg() - out: - if (log_buffer) - free(log_buffer); - + free(dc); - - return ret; - } diff --git a/kexec-tools-2.0.23-03-add_slurp_proc_file_.patch b/kexec-tools-2.0.23-03-add_slurp_proc_file_.patch deleted file mode 100644 index b8e4e2f..0000000 --- a/kexec-tools-2.0.23-03-add_slurp_proc_file_.patch +++ /dev/null @@ -1,76 +0,0 @@ - commit 193e51deccc62544f6423eb5e5eefc8a23aad679 - Author: Sven Schnelle - Date: Thu Dec 16 12:43:54 2021 +0100 - - add slurp_proc_file() - - slurp_file() cannot be used to read proc files, as they are returning - a size of zero in stat(). Add a function slurp_proc_file() which is - similar to slurp_file(), but doesn't require the size of the file to - be known. - - Signed-off-by: Sven Schnelle - Signed-off-by: Simon Horman - - diff --git a/kexec/kexec.c b/kexec/kexec.c - index f63b36b771eb95a93f07a7c286c4974a558aec8d..f3adac517161d448552a16fd79488c1df100d356 100644 - --- a/kexec/kexec.c - +++ b/kexec/kexec.c - @@ -1106,6 +1106,57 @@ static void remove_parameter(char *line, const char *param_name) - } - } - - +static ssize_t _read(int fd, void *buf, size_t count) - +{ - + ssize_t ret, offset = 0; - + - + do { - + ret = read(fd, buf + offset, count - offset); - + if (ret < 0) { - + if ((errno == EINTR) || (errno == EAGAIN)) - + continue; - + return ret; - + } - + offset += ret; - + } while (ret && offset < count); - + - + return offset; - +} - + - +static char *slurp_proc_file(const char *filename, size_t *len) - +{ - + ssize_t ret, startpos = 0; - + unsigned int size = 64; - + char *buf = NULL, *tmp; - + int fd; - + - + fd = open(filename, O_RDONLY); - + if (fd == -1) - + return NULL; - + - + do { - + size *= 2; - + tmp = realloc(buf, size); - + if (!tmp) { - + free(buf); - + return NULL; - + } - + buf = tmp; - + - + ret = _read(fd, buf + startpos, size - startpos); - + if (ret < 0) { - + free(buf); - + return NULL; - + } - + - + startpos += ret; - + - + } while(ret); - + - + *len = startpos; - + return buf; - +} - + - /* - * Returns the contents of the current command line to be used with - * --reuse-cmdline option. The function gets called from architecture specific diff --git a/kexec-tools-2.0.23-04-_PATCH_print_error_when_reading_with_unsupported_compression.patch b/kexec-tools-2.0.23-04-_PATCH_print_error_when_reading_with_unsupported_compression.patch deleted file mode 100644 index 7e933fa..0000000 --- a/kexec-tools-2.0.23-04-_PATCH_print_error_when_reading_with_unsupported_compression.patch +++ /dev/null @@ -1,150 +0,0 @@ - commit 5035c0821f07da3badda645cd0064d4b80e1667d - Author: Philipp Rudo - Date: Mon Mar 14 17:04:32 2022 +0100 - - [PATCH] print error when reading with unsupported compression - - Currently makedumpfile only checks if the required compression algorithm - was enabled during build when compressing a dump but not when reading - from one. This can lead to situations where, one version of makedumpfile - creates the dump using a compression algorithm an other version of - makedumpfile doesn't support. When the second version now tries to, e.g. - extract the dmesg from the dump it will fail with an error similar to - - # makedumpfile --dump-dmesg vmcore dmesg.txt - __vtop4_x86_64: Can't get a valid pgd. - readmem: Can't convert a virtual address(ffffffff92e18284) to physical address. - readmem: type_addr: 0, addr:ffffffff92e18284, size:390 - check_release: Can't get the address of system_utsname. - - makedumpfile Failed. - - That's because readpage_kdump_compressed{_parallel} does not return - with an error if the page it is trying to read is compressed with an - unsupported compression algorithm. Thus readmem copies random data from - the (uninitialized) cachebuf to its caller and thus causing the error - above. - - Fix this by checking if the required compression algorithm is supported - in readpage_kdump_compressed{_parallel} and print a proper error message - if it isn't. - - Reported-by: Dave Wysochanski - Signed-off-by: Philipp Rudo - Reviewed-and-tested-by: Dave Wysochanski - Signed-off-by: Kazuhito Hagio - - diff --git a/makedumpfile-1.7.0/makedumpfile.c b/makedumpfile-1.7.0/makedumpfile.c - index 2b94446b8f2ad513da060e15821544ae32e1a2c6..14556db15627617cb394bba85bb7ebec6b35fb34 100644 - --- a/makedumpfile-1.7.0/makedumpfile.c - +++ b/makedumpfile-1.7.0/makedumpfile.c - @@ -865,9 +865,13 @@ readpage_kdump_compressed(unsigned long long paddr, void *bufptr) - ERRMSG("Uncompress failed: %d\n", ret); - return FALSE; - } - + } else if ((pd.flags & DUMP_DH_COMPRESSED_LZO)) { - #ifdef USELZO - - } else if (info->flag_lzo_support - - && (pd.flags & DUMP_DH_COMPRESSED_LZO)) { - + if (!info->flag_lzo_support) { - + ERRMSG("lzo compression unsupported\n"); - + return FALSE; - + } - + - retlen = info->page_size; - ret = lzo1x_decompress_safe((unsigned char *)buf, pd.size, - (unsigned char *)bufptr, &retlen, - @@ -876,9 +880,13 @@ readpage_kdump_compressed(unsigned long long paddr, void *bufptr) - ERRMSG("Uncompress failed: %d\n", ret); - return FALSE; - } - +#else - + ERRMSG("lzo compression unsupported\n"); - + ERRMSG("Try `make USELZO=on` when building.\n"); - + return FALSE; - #endif - -#ifdef USESNAPPY - } else if ((pd.flags & DUMP_DH_COMPRESSED_SNAPPY)) { - +#ifdef USESNAPPY - - ret = snappy_uncompressed_length(buf, pd.size, (size_t *)&retlen); - if (ret != SNAPPY_OK) { - @@ -891,14 +899,22 @@ readpage_kdump_compressed(unsigned long long paddr, void *bufptr) - ERRMSG("Uncompress failed: %d\n", ret); - return FALSE; - } - +#else - + ERRMSG("snappy compression unsupported\n"); - + ERRMSG("Try `make USESNAPPY=on` when building.\n"); - + return FALSE; - #endif - -#ifdef USEZSTD - } else if ((pd.flags & DUMP_DH_COMPRESSED_ZSTD)) { - +#ifdef USEZSTD - ret = ZSTD_decompress(bufptr, info->page_size, buf, pd.size); - if (ZSTD_isError(ret) || (ret != info->page_size)) { - ERRMSG("Uncompress failed: %d\n", ret); - return FALSE; - } - +#else - + ERRMSG("zstd compression unsupported\n"); - + ERRMSG("Try `make USEZSTD=on` when building.\n"); - + return FALSE; - #endif - } - - @@ -964,9 +980,13 @@ readpage_kdump_compressed_parallel(int fd_memory, unsigned long long paddr, - ERRMSG("Uncompress failed: %d\n", ret); - return FALSE; - } - + } else if ((pd.flags & DUMP_DH_COMPRESSED_LZO)) { - #ifdef USELZO - - } else if (info->flag_lzo_support - - && (pd.flags & DUMP_DH_COMPRESSED_LZO)) { - + if (!info->flag_lzo_support) { - + ERRMSG("lzo compression unsupported\n"); - + return FALSE; - + } - + - retlen = info->page_size; - ret = lzo1x_decompress_safe((unsigned char *)buf, pd.size, - (unsigned char *)bufptr, &retlen, - @@ -975,9 +995,13 @@ readpage_kdump_compressed_parallel(int fd_memory, unsigned long long paddr, - ERRMSG("Uncompress failed: %d\n", ret); - return FALSE; - } - +#else - + ERRMSG("lzo compression unsupported\n"); - + ERRMSG("Try `make USELZO=on` when building.\n"); - + return FALSE; - #endif - -#ifdef USESNAPPY - } else if ((pd.flags & DUMP_DH_COMPRESSED_SNAPPY)) { - +#ifdef USESNAPPY - - ret = snappy_uncompressed_length(buf, pd.size, (size_t *)&retlen); - if (ret != SNAPPY_OK) { - @@ -990,14 +1014,22 @@ readpage_kdump_compressed_parallel(int fd_memory, unsigned long long paddr, - ERRMSG("Uncompress failed: %d\n", ret); - return FALSE; - } - +#else - + ERRMSG("snappy compression unsupported\n"); - + ERRMSG("Try `make USESNAPPY=on` when building.\n"); - + return FALSE; - #endif - -#ifdef USEZSTD - } else if ((pd.flags & DUMP_DH_COMPRESSED_ZSTD)) { - +#ifdef USEZSTD - ret = ZSTD_decompress(bufptr, info->page_size, buf, pd.size); - if (ZSTD_isError(ret) || (ret != info->page_size)) { - ERRMSG("Uncompress failed: %d\n", ret); - return FALSE; - } - +#else - + ERRMSG("zstd compression unsupported\n"); - + ERRMSG("Try `make USEZSTD=on` when building.\n"); - + return FALSE; - #endif - } - diff --git a/kexec-tools-2.0.23-04-use_slurp_proc_file_in_get_command_line_.patch b/kexec-tools-2.0.23-04-use_slurp_proc_file_in_get_command_line_.patch deleted file mode 100644 index d4351c3..0000000 --- a/kexec-tools-2.0.23-04-use_slurp_proc_file_in_get_command_line_.patch +++ /dev/null @@ -1,52 +0,0 @@ - commit d6516ba4c88f217fe14455db92c60cd0e9af18f8 - Author: Sven Schnelle - Date: Thu Dec 16 12:43:55 2021 +0100 - - use slurp_proc_file() in get_command_line() - - This way the size of the command line that get_command_line() can handle - is no longer fixed. - - Signed-off-by: Sven Schnelle - Signed-off-by: Simon Horman - - diff --git a/kexec/kexec.c b/kexec/kexec.c - index f3adac517161d448552a16fd79488c1df100d356..7e4787bc821107b7af66ebdbcfc31f4e7e1d48cd 100644 - --- a/kexec/kexec.c - +++ b/kexec/kexec.c - @@ -1172,25 +1172,19 @@ static char *slurp_proc_file(const char *filename, size_t *len) - */ - char *get_command_line(void) - { - - FILE *fp; - - char *line; - - const int sizeof_line = 2048; - - - - line = malloc(sizeof_line); - - if (line == NULL) - - die("Could not allocate memory to read /proc/cmdline."); - - - - fp = fopen("/proc/cmdline", "r"); - - if (!fp) - - die("Could not open /proc/cmdline."); - - - - if (fgets(line, sizeof_line, fp) == NULL) - - die("Can't read /proc/cmdline."); - + char *p, *line; - + size_t size; - - - fclose(fp); - + line = slurp_proc_file("/proc/cmdline", &size); - + if (!line || !size) - + die("Failed to read /proc/cmdline\n"); - - /* strip newline */ - - line[strlen(line) - 1] = '\0'; - + line[size-1] = '\0'; - + - + p = strpbrk(line, "\r\n"); - + if (p) - + *p = '\0'; - - remove_parameter(line, "BOOT_IMAGE"); - if (kexec_flags & KEXEC_ON_CRASH) diff --git a/kexec-tools-2.0.23-05-s390_add_support_for_reuse_cmdline.patch b/kexec-tools-2.0.23-05-s390_add_support_for_reuse_cmdline.patch deleted file mode 100644 index 155ac7b..0000000 --- a/kexec-tools-2.0.23-05-s390_add_support_for_reuse_cmdline.patch +++ /dev/null @@ -1,75 +0,0 @@ - commit 2e1ec106dc5aac951ba884ebe4cca036e9a2d45f - Author: Sven Schnelle - Date: Thu Dec 16 12:43:56 2021 +0100 - - s390: add support for --reuse-cmdline - - --reuse-cmdline reads the command line of the currently - running kernel from /proc/cmdline and uses that for the - kernel that should be kexec'd. - - Signed-off-by: Sven Schnelle - Reviewed-by: Alexander Egorenkov - Signed-off-by: Simon Horman - - diff --git a/kexec/arch/s390/include/arch/options.h b/kexec/arch/s390/include/arch/options.h - index 76044a301ceb3cca013f70dff330a8ad343d808a..c150244996c79165cf1e83e331f728432b752652 100644 - --- a/kexec/arch/s390/include/arch/options.h - +++ b/kexec/arch/s390/include/arch/options.h - @@ -1,9 +1,10 @@ - #ifndef KEXEC_ARCH_S390_OPTIONS_H - #define KEXEC_ARCH_S390_OPTIONS_H - - -#define OPT_ARCH_MAX (OPT_MAX+0) - -#define OPT_APPEND OPT_MAX+0 - -#define OPT_RAMDISK OPT_MAX+1 - +#define OPT_ARCH_MAX (OPT_MAX+0) - +#define OPT_APPEND (OPT_MAX+0) - +#define OPT_RAMDISK (OPT_MAX+1) - +#define OPT_REUSE_CMDLINE (OPT_MAX+2) - - /* Options relevant to the architecture (excluding loader-specific ones), - * in this case none: - @@ -31,7 +32,8 @@ - KEXEC_ARCH_OPTIONS \ - {"command-line", 1, 0, OPT_APPEND}, \ - {"append", 1, 0, OPT_APPEND}, \ - - {"initrd", 1, 0, OPT_RAMDISK}, - + {"initrd", 1, 0, OPT_RAMDISK}, \ - + {"reuse-cmdline", 0, 0, OPT_REUSE_CMDLINE }, - - #define KEXEC_ALL_OPT_STR KEXEC_ARCH_OPT_STR - - diff --git a/kexec/arch/s390/kexec-image.c b/kexec/arch/s390/kexec-image.c - index 209ab77ddccbd60f10989e2d9fc273324aefa76d..69aaf96812f741110bf323b4bb8d5dda155f293a 100644 - --- a/kexec/arch/s390/kexec-image.c - +++ b/kexec/arch/s390/kexec-image.c - @@ -71,6 +71,10 @@ int image_s390_load_file(int argc, char **argv, struct kexec_info *info) - case OPT_RAMDISK: - ramdisk = optarg; - break; - + case OPT_REUSE_CMDLINE: - + free(info->command_line); - + info->command_line = get_command_line(); - + break; - } - } - - @@ -123,6 +127,10 @@ image_s390_load(int argc, char **argv, const char *kernel_buf, - if (command_line_add(info, optarg)) - return -1; - break; - + case OPT_REUSE_CMDLINE: - + free(info->command_line); - + info->command_line = get_command_line(); - + break; - case OPT_RAMDISK: - ramdisk = optarg; - break; - @@ -223,5 +231,6 @@ image_s390_usage(void) - printf("--command-line=STRING Set the kernel command line to STRING.\n" - "--append=STRING Set the kernel command line to STRING.\n" - "--initrd=FILENAME Use the file FILENAME as a ramdisk.\n" - + "--reuse-cmdline Use kernel command line from running system.\n" - ); - } diff --git a/kexec-tools-2.0.23-05-util_lib_elf_info_harden_parsing_of_printk_buffer.patch b/kexec-tools-2.0.23-05-util_lib_elf_info_harden_parsing_of_printk_buffer.patch deleted file mode 100644 index 519eaef..0000000 --- a/kexec-tools-2.0.23-05-util_lib_elf_info_harden_parsing_of_printk_buffer.patch +++ /dev/null @@ -1,86 +0,0 @@ - commit f4c59879b830c7d574a953e6ce970ddaf20910d7 - Author: Philipp Rudo - Date: Wed Mar 23 16:35:36 2022 +0100 - - util_lib/elf_info: harden parsing of printk buffer - - The old printk mechanism (> v3.5.0 and < v5.10.0) had a fixed size - buffer (log_buf) that contains all messages. The location for the next - message is stored in log_next_idx. In case the log_buf runs full - log_next_idx wraps around and starts overwriting old messages at the - beginning of the buffer. The wraparound is denoted by a message with - msg->len == 0. - - Following the behavior described above blindly is dangerous as e.g. a - memory corruption could overwrite (parts of) the log_buf. If the - corruption adds a message with msg->len == 0 this leads to an endless - loop when dumping the dmesg. Fix this by verifying that not wrapped - around before when it encounters a message with msg->len == 0. - - While at it also verify that the index is within the log_buf and thus - guard against corruptions with msg->len != 0. - - The same bug has been reported and fixed in makedumpfile [1]. - - [1] http://lists.infradead.org/pipermail/kexec/2022-March/024272.html - - Signed-off-by: Philipp Rudo - Signed-off-by: Simon Horman - - diff --git a/util_lib/elf_info.c b/util_lib/elf_info.c - index d252eff5bd582837595a22aa387f53675c402121..ce71c6055c3a6ce8698d35960a8448be1dc8adc1 100644 - --- a/util_lib/elf_info.c - +++ b/util_lib/elf_info.c - @@ -763,8 +763,9 @@ static void dump_dmesg_structured(int fd, void (*handler)(char*, unsigned int)) - { - #define OUT_BUF_SIZE 4096 - uint64_t log_buf, log_buf_offset, ts_nsec; - - uint32_t log_first_idx, log_next_idx, current_idx, len = 0, i; - + uint32_t log_buf_len, log_first_idx, log_next_idx, current_idx, len = 0, i; - char *buf, out_buf[OUT_BUF_SIZE]; - + bool has_wrapped_around = false; - ssize_t ret; - char *msg; - uint16_t text_len; - @@ -811,6 +812,7 @@ static void dump_dmesg_structured(int fd, void (*handler)(char*, unsigned int)) - } - - log_buf = read_file_pointer(fd, vaddr_to_offset(log_buf_vaddr)); - + log_buf_len = read_file_s32(fd, vaddr_to_offset(log_buf_len_vaddr)); - - log_first_idx = read_file_u32(fd, vaddr_to_offset(log_first_idx_vaddr)); - log_next_idx = read_file_u32(fd, vaddr_to_offset(log_next_idx_vaddr)); - @@ -882,11 +884,31 @@ static void dump_dmesg_structured(int fd, void (*handler)(char*, unsigned int)) - * and read the message at the start of the buffer. - */ - loglen = struct_val_u16(buf, log_offset_len); - - if (!loglen) - + if (!loglen) { - + if (has_wrapped_around) { - + if (len && handler) - + handler(out_buf, len); - + fprintf(stderr, "Cycle when parsing dmesg detected.\n"); - + fprintf(stderr, "The prink log_buf is most likely corrupted.\n"); - + fprintf(stderr, "log_buf = 0x%lx, idx = 0x%x\n", - + log_buf, current_idx); - + exit(68); - + } - current_idx = 0; - - else - + has_wrapped_around = true; - + } else { - /* Move to next record */ - current_idx += loglen; - + if(current_idx > log_buf_len - log_sz) { - + if (len && handler) - + handler(out_buf, len); - + fprintf(stderr, "Index outside log_buf detected.\n"); - + fprintf(stderr, "The prink log_buf is most likely corrupted.\n"); - + fprintf(stderr, "log_buf = 0x%lx, idx = 0x%x\n", - + log_buf, current_idx); - + exit(69); - + } - + } - } - free(buf); - if (len && handler) diff --git a/kexec-tools-2.0.23-makedumpfile-Avoid_false_positive_mem_section_validation_with_vmlinux.patch b/kexec-tools-2.0.23-makedumpfile-Avoid_false_positive_mem_section_validation_with_vmlinux.patch index db1cf3b..8a7dd8a 100644 --- a/kexec-tools-2.0.23-makedumpfile-Avoid_false_positive_mem_section_validation_with_vmlinux.patch +++ b/kexec-tools-2.0.23-makedumpfile-Avoid_false_positive_mem_section_validation_with_vmlinux.patch @@ -19,10 +19,10 @@ Reviewed-and-Tested-by: Philipp Rudo Reviewed-by: Pingfan Liu - diff --git a/makedumpfile-1.7.0/makedumpfile.c b/makedumpfile-1.7.0/makedumpfile.c + diff --git a/makedumpfile-1.7.1/makedumpfile.c b/makedumpfile-1.7.1/makedumpfile.c index a2f45c84cee3ba57ce3d3cf3f1905e6a03f4fd09..65d1c7c2f02c9ae8ead9de0f0217235fe72b3ca7 100644 - --- a/makedumpfile-1.7.0/makedumpfile.c - +++ b/makedumpfile-1.7.0/makedumpfile.c + --- a/makedumpfile-1.7.1/makedumpfile.c + +++ b/makedumpfile-1.7.1/makedumpfile.c @@ -3698,6 +3698,22 @@ validate_mem_section(unsigned long *mem_sec, return ret; } diff --git a/kexec-tools-2.0.23-makedumpfile-sadump-kaslr-fix-failure-of-calculating-kaslr_.patch b/kexec-tools-2.0.23-makedumpfile-sadump-kaslr-fix-failure-of-calculating-kaslr_.patch deleted file mode 100644 index e7a47b5..0000000 --- a/kexec-tools-2.0.23-makedumpfile-sadump-kaslr-fix-failure-of-calculating-kaslr_.patch +++ /dev/null @@ -1,49 +0,0 @@ -From 59b1726fbcc251155140c8a1972384498fee4daf Mon Sep 17 00:00:00 2001 -From: HATAYAMA Daisuke -Date: Tue, 25 Jan 2022 12:55:15 +0000 -Subject: [PATCH] [PATCH] sadump, kaslr: fix failure of calculating - kaslr_offset - -On kernels v5.8 or later, makedumpfile fails for memory dumps in the -sadump-related formats as follows: - - # makedumpfile -f -l -d 31 -x ./vmlinux /dev/sdd4 /root/vmcore-ld31 - __vtop4_x86_64: Can't get a valid pud_pte. - ...110 lines of the same message... - __vtop4_x86_64: Can't get a valid pud_pte. - calc_kaslr_offset: failed to calculate kaslr_offset and phys_base; default to 0 - readmem: type_addr: 1, addr:ffffffff85411858, size:8 - __vtop4_x86_64: Can't get pgd (page_dir:ffffffff85411858). - readmem: Can't convert a virtual address(ffffffff059be980) to physical address. - readmem: type_addr: 0, addr:ffffffff059be980, size:1024 - cpu_online_mask_init: Can't read cpu_online_mask memory. - - makedumpfile Failed. - -This is caused by the kernel commit 9d06c4027f21 ("x86/entry: Convert -Divide Error to IDTENTRY") that renamed divide_error to -asm_exc_divide_error, breaking logic for calculating kaslr offset. - -Fix this by adding initialization of asm_exc_divide_error. - -Signed-off-by: HATAYAMA Daisuke ---- - makedumpfile.c | 2 ++ - 1 file changed, 2 insertions(+) - -diff --git a/makedumpfile-1.7.0/makedumpfile.c b/makedumpfile-1.7.0/makedumpfile.c -index a51bdaf..7ed9756 100644 ---- a/makedumpfile-1.7.0/makedumpfile.c -+++ b/makedumpfile-1.7.0/makedumpfile.c -@@ -1667,6 +1667,8 @@ get_symbol_info(void) - SYMBOL_INIT(cur_cpu_spec, "cur_cpu_spec"); - - SYMBOL_INIT(divide_error, "divide_error"); -+ if (SYMBOL(divide_error) == NOT_FOUND_SYMBOL) -+ SYMBOL_INIT(divide_error, "asm_exc_divide_error"); - SYMBOL_INIT(idt_table, "idt_table"); - SYMBOL_INIT(saved_command_line, "saved_command_line"); - SYMBOL_INIT(pti_init, "pti_init"); --- -2.33.1 - diff --git a/kexec-tools.spec b/kexec-tools.spec index d94b14b..5e0eca4 100644 --- a/kexec-tools.spec +++ b/kexec-tools.spec @@ -4,8 +4,8 @@ %global mkdf_shortver %(c=%{mkdf_ver}; echo ${c:0:7}) Name: kexec-tools -Version: 2.0.23 -Release: 10%{?dist} +Version: 2.0.24 +Release: 1%{?dist} License: GPLv2 Summary: The kexec/kdump userspace component @@ -104,11 +104,6 @@ Requires: systemd-udev%{?_isa} # # Patches 401 through 500 are meant for s390 kexec-tools enablement # -Patch401: ./kexec-tools-2.0.23-01-s390_add_variable_command_line_size.patch -Patch402: ./kexec-tools-2.0.23-02-s390_use_KEXEC_ALL_OPTIONS.patch -Patch403: ./kexec-tools-2.0.23-03-add_slurp_proc_file_.patch -Patch404: ./kexec-tools-2.0.23-04-use_slurp_proc_file_in_get_command_line_.patch -Patch405: ./kexec-tools-2.0.23-05-s390_add_support_for_reuse_cmdline.patch # # Patches 501 through 600 are meant for ARM kexec-tools enablement @@ -117,9 +112,7 @@ Patch405: ./kexec-tools-2.0.23-05-s390_add_support_for_reuse_cmdline.patch # # Patches 601 onward are generic patches # -Patch601: ./kexec-tools-2.0.22-01-s390_handle_R_390_PLT32DBL_reloc_entries_in_machine_apply_elf_rel_.patch -Patch607: ./kexec-tools-2.0.23-05-util_lib_elf_info_harden_parsing_of_printk_buffer.patch -Patch608: ./kexec-tools-2.0.23-makedumpfile-Avoid_false_positive_mem_section_validation_with_vmlinux.patch +Patch601: ./kexec-tools-2.0.23-makedumpfile-Avoid_false_positive_mem_section_validation_with_vmlinux.patch %description kexec-tools provides /sbin/kexec binary that facilitates a new @@ -135,14 +128,7 @@ mkdir -p -m755 kcp tar -z -x -v -f %{SOURCE9} tar -z -x -v -f %{SOURCE19} -%patch401 -p1 -%patch402 -p1 -%patch403 -p1 -%patch404 -p1 -%patch405 -p1 %patch601 -p1 -%patch607 -p1 -%patch608 -p1 %ifarch ppc %define archdef ARCH=ppc diff --git a/sources b/sources index 05e057f..c348264 100644 --- a/sources +++ b/sources @@ -1,3 +1,3 @@ SHA512 (eppic-e8844d3.tar.gz) = d86b9f90c57e694107272d8f71b87f66a30743b9530480fb6f665026bbada4c6b0205a83e40b5383663a945681cfbfcf1ee79469fc219ddf679473c4b2290763 -SHA512 (kexec-tools-2.0.23.tar.xz) = b6e3b967cacc31c434b185d25da4d53c822ae4bbcec26ef9d6cb171f294fdcc80913d381e686a0a41e025187835f4dc088052ff88efe75a021d7624c8b1a1ed8 SHA512 (makedumpfile-1.7.1.tar.gz) = 93e36487b71f567d3685b151459806cf36017e52bf3ee68dd448382b279a422d1a8abef72e291ccb8206f2149ccd08ba484ec0027d1caab3fa1edbc3d28c3632 +SHA512 (kexec-tools-2.0.24.tar.xz) = ef7cf78246e2d729d81a3649791a5a23c385353cc75cbe8ef279616329fdaccc876d614c7f51e1456822a13a11520296070d9897467d24310399909e049c3822