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From 9d178fe573818764a2d15e0a39691f5eb4e300f6 Mon Sep 17 00:00:00 2001
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From: Ondrej Dubaj <odubaj@redhat.com>
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Date: Mon, 27 May 2019 10:52:51 +0200
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Subject: [PATCH] Fix a few obvious resource leaks and strcpy() misuses
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Per Coverity report.
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---
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cpio/cpio.c | 4 +++-
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libarchive/archive_acl.c | 8 ++++++--
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libarchive/archive_write_set_format_iso9660.c | 4 ++--
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libarchive/archive_write_set_format_mtree.c | 4 ++--
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libarchive/archive_write_set_format_pax.c | 6 ++++--
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libarchive/archive_write_set_format_xar.c | 10 ++++++----
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6 files changed, 23 insertions(+), 13 deletions(-)
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diff --git a/cpio/cpio.c b/cpio/cpio.c
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index 5beedd0..6696bb5 100644
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--- a/cpio/cpio.c
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+++ b/cpio/cpio.c
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@@ -744,8 +744,10 @@ file_to_archive(struct cpio *cpio, const char *srcpath)
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}
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if (cpio->option_rename)
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destpath = cpio_rename(destpath);
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- if (destpath == NULL)
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+ if (destpath == NULL) {
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+ archive_entry_free(entry);
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return (0);
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+ }
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archive_entry_copy_pathname(entry, destpath);
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/*
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diff --git a/libarchive/archive_acl.c b/libarchive/archive_acl.c
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index b8b6b63..503f379 100644
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--- a/libarchive/archive_acl.c
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+++ b/libarchive/archive_acl.c
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@@ -753,8 +753,10 @@ archive_acl_to_text_w(struct archive_acl *acl, ssize_t *text_len, int flags,
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append_entry_w(&wp, prefix, ap->type, ap->tag, flags,
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wname, ap->permset, id);
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count++;
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- } else if (r < 0 && errno == ENOMEM)
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+ } else if (r < 0 && errno == ENOMEM) {
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+ free(ws);
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return (NULL);
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+ }
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}
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/* Add terminating character */
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@@ -975,8 +977,10 @@ archive_acl_to_text_l(struct archive_acl *acl, ssize_t *text_len, int flags,
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prefix = NULL;
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r = archive_mstring_get_mbs_l(
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&ap->name, &name, &len, sc);
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- if (r != 0)
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+ if (r != 0) {
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+ free(s);
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return (NULL);
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+ }
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if (count > 0)
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*p++ = separator;
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if (name == NULL ||
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diff --git a/libarchive/archive_write_set_format_iso9660.c b/libarchive/archive_write_set_format_iso9660.c
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index c0ca435..badc88b 100644
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--- a/libarchive/archive_write_set_format_iso9660.c
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+++ b/libarchive/archive_write_set_format_iso9660.c
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@@ -4899,10 +4899,10 @@ isofile_gen_utility_names(struct archive_write *a, struct isofile *file)
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if (p[0] == '/') {
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if (p[1] == '/')
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/* Convert '//' --> '/' */
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- strcpy(p, p+1);
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+ memmove(p, p+1, strlen(p+1) + 1);
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else if (p[1] == '.' && p[2] == '/')
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/* Convert '/./' --> '/' */
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- strcpy(p, p+2);
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+ memmove(p, p+2, strlen(p+2) + 1);
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else if (p[1] == '.' && p[2] == '.' && p[3] == '/') {
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/* Convert 'dir/dir1/../dir2/'
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* --> 'dir/dir2/'
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diff --git a/libarchive/archive_write_set_format_mtree.c b/libarchive/archive_write_set_format_mtree.c
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index 493d473..0f2431e 100644
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--- a/libarchive/archive_write_set_format_mtree.c
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+++ b/libarchive/archive_write_set_format_mtree.c
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@@ -1810,10 +1810,10 @@ mtree_entry_setup_filenames(struct archive_write *a, struct mtree_entry *file,
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if (p[0] == '/') {
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if (p[1] == '/')
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/* Convert '//' --> '/' */
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- strcpy(p, p+1);
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+ memmove(p, p+1, strlen(p+1) + 1);
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else if (p[1] == '.' && p[2] == '/')
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/* Convert '/./' --> '/' */
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- strcpy(p, p+2);
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+ memmove(p, p+2, strlen(p+2) + 1);
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else if (p[1] == '.' && p[2] == '.' && p[3] == '/') {
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/* Convert 'dir/dir1/../dir2/'
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* --> 'dir/dir2/'
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diff --git a/libarchive/archive_write_set_format_pax.c b/libarchive/archive_write_set_format_pax.c
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index 0eaf733..4863e46 100644
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--- a/libarchive/archive_write_set_format_pax.c
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+++ b/libarchive/archive_write_set_format_pax.c
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@@ -522,11 +522,13 @@ add_pax_acl(struct archive_write *a,
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ARCHIVE_ERRNO_FILE_FORMAT, "%s %s %s",
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"Can't translate ", attr, " to UTF-8");
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return(ARCHIVE_WARN);
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- } else if (*p != '\0') {
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+ }
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+
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+ if (*p != '\0') {
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add_pax_attr(&(pax->pax_header),
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attr, p);
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- free(p);
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}
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+ free(p);
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return(ARCHIVE_OK);
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}
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diff --git a/libarchive/archive_write_set_format_xar.c b/libarchive/archive_write_set_format_xar.c
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index 495f0d4..56cd33c 100644
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--- a/libarchive/archive_write_set_format_xar.c
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+++ b/libarchive/archive_write_set_format_xar.c
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@@ -2120,10 +2120,10 @@ file_gen_utility_names(struct archive_write *a, struct file *file)
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if (p[0] == '/') {
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if (p[1] == '/')
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/* Convert '//' --> '/' */
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- strcpy(p, p+1);
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+ memmove(p, p+1, strlen(p+1) + 1);
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else if (p[1] == '.' && p[2] == '/')
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/* Convert '/./' --> '/' */
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- strcpy(p, p+2);
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+ memmove(p, p+2, strlen(p+2) + 1);
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else if (p[1] == '.' && p[2] == '.' && p[3] == '/') {
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/* Convert 'dir/dir1/../dir2/'
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* --> 'dir/dir2/'
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@@ -3169,8 +3169,10 @@ save_xattrs(struct archive_write *a, struct file *file)
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checksum_update(&(xar->a_sumwrk),
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xar->wbuff, size);
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if (write_to_temp(a, xar->wbuff, size)
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- != ARCHIVE_OK)
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- return (ARCHIVE_FATAL);
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+ != ARCHIVE_OK) {
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+ free(heap);
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+ return (ARCHIVE_FATAL);
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+ }
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if (r == ARCHIVE_OK) {
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xar->stream.next_out = xar->wbuff;
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xar->stream.avail_out = sizeof(xar->wbuff);
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--
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2.17.1
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