doczkal / rpms / abrt

Forked from rpms/abrt 4 years ago
Clone

Blame SOURCES/0259-koops-do-not-assume-version-has-3-levels.patch

baab13
From adb5eabda368cdd05e9ed02cf91ce5e02bc26e0b Mon Sep 17 00:00:00 2001
baab13
From: Jakub Filak <jfilak@redhat.com>
baab13
Date: Wed, 25 May 2016 13:35:28 +0200
baab13
Subject: [PATCH] koops: do not assume version has 3 levels
baab13
baab13
Correct commit 9023d77ad5539433146b59e5ac80e3cefcb20cf7
baab13
baab13
Some ancient kernel versions have 4 levels. This commit allows version
baab13
string to have any level equal or greater than 3. The first 3 levels
baab13
must be numbers and the rest can be almost anything - it just must
baab13
follow the logical structure of levels (i.e. dot something dot
baab13
something) - this should allow a git hash in the version string.
baab13
baab13
In order to eliminate possible false positives introduced by the
baab13
flexibility of version levels the commit adds checks for
baab13
the prefixes ' ', '(' or 'kernel-' and the suffix ' #' or ') #'.
baab13
baab13
Resolves #1378469
baab13
baab13
Signed-off-by: Jakub Filak <jfilak@redhat.com>
baab13
---
baab13
 src/lib/kernel.c | 15 +++++++++++----
baab13
 1 file changed, 11 insertions(+), 4 deletions(-)
baab13
baab13
diff --git a/src/lib/kernel.c b/src/lib/kernel.c
baab13
index 4e27d05..1a9d327 100644
baab13
--- a/src/lib/kernel.c
baab13
+++ b/src/lib/kernel.c
baab13
@@ -534,7 +534,10 @@ char *koops_extract_version(const char *linepointer)
baab13
      || strstr(linepointer, "REGS")
baab13
      || strstr(linepointer, "EFLAGS")
baab13
     ) {
baab13
-        const char *regexp = "([0-9]+\\.[0-9]+\\.[0-9]+-[^ \\)]+)[ \\)]";
baab13
+        /* "(4.7.0-2.x86_64.fc25) #"    */
baab13
+        /* " 4.7.0-2.x86_64.fc25 #"     */
baab13
+        /* " 2.6.3.4.5-2.x86_64.fc22 #" */
baab13
+        const char *regexp = "([ \\(]|kernel-)([0-9]+\\.[0-9]+\\.[0-9]+(\\.[^.-]+)*-[^ \\)]+)\\)? #";
baab13
         regex_t re;
baab13
         int r = regcomp(&re, regexp, REG_EXTENDED);
baab13
         if (r != 0)
baab13
@@ -545,8 +548,8 @@ char *koops_extract_version(const char *linepointer)
baab13
             return NULL;
baab13
         }
baab13
 
baab13
-        regmatch_t matchptr[2];
baab13
-        r = regexec(&re, linepointer, 2, matchptr, 0);
baab13
+        regmatch_t matchptr[3];
baab13
+        r = regexec(&re, linepointer, sizeof(matchptr)/sizeof(matchptr[0]), matchptr, 0);
baab13
         if (r != 0)
baab13
         {
baab13
             if (r != REG_NOMATCH)
baab13
@@ -565,7 +568,11 @@ char *koops_extract_version(const char *linepointer)
baab13
             return NULL;
baab13
         }
baab13
 
baab13
-        char *ret = xstrndup(linepointer + matchptr[1].rm_so, matchptr[1].rm_eo - matchptr[1].rm_so);
baab13
+        /* 0: entire string */
baab13
+        /* 1: version prefix */
baab13
+        /* 2: version string */
baab13
+        const regmatch_t *const ver = matchptr + 2;
baab13
+        char *ret = xstrndup(linepointer + ver->rm_so, ver->rm_eo - ver->rm_so);
baab13
 
baab13
         regfree(&re);
baab13
         return ret;
baab13
-- 
baab13
1.8.3.1
baab13