diff options
Diffstat (limited to 'app-admin/sysstat/files/sysstat-12.6.2-check_overflow.patch')
| -rw-r--r-- | app-admin/sysstat/files/sysstat-12.6.2-check_overflow.patch | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/app-admin/sysstat/files/sysstat-12.6.2-check_overflow.patch b/app-admin/sysstat/files/sysstat-12.6.2-check_overflow.patch new file mode 100644 index 000000000000..3f36fd7ff090 --- /dev/null +++ b/app-admin/sysstat/files/sysstat-12.6.2-check_overflow.patch @@ -0,0 +1,18 @@ +Backported upstream fix for the fix for CVE-2022-39377. + +--- a/common.c ++++ b/common.c +@@ -431,8 +431,11 @@ int check_dir(char *dirname) + void check_overflow(unsigned int val1, unsigned int val2, + unsigned int val3) + { +- if ((unsigned long long) val1 * (unsigned long long) val2 * +- (unsigned long long) val3 > UINT_MAX) { ++ if ((val1 != 0) && (val2 != 0) && (val3 != 0) && ++ (((unsigned long long)UINT_MAX / (unsigned long long)val1 < ++ (unsigned long long)val2) || ++ ((unsigned long long)UINT_MAX / ((unsigned long long)val1 * ++ (unsigned long long)val2) < (unsigned long long)val3)) { + #ifdef DEBUG + fprintf(stderr, "%s: Overflow detected (%llu). Aborting...\n", + __FUNCTION__, (unsigned long long) val1 * (unsigned long long) val2 * |