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| author | Harshit Sharma <harshitsharmajs@gmail.com> | 2020-05-26 00:29:53 +0530 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2020-05-28 09:34:37 +0000 |
| commit | 0d512179c5e33de51620973250c9e3acf18ad082 (patch) | |
| tree | e78daf59ca8379f8734fa42912f1f3fd96944578 | |
| parent | 8f2737476805ee9629af1ad16646e6258825a24b (diff) | |
| download | coreboot-0d512179c5e33de51620973250c9e3acf18ad082.tar.xz | |
payloads/libpayload/libc: Avoid NULL pointer dereference
Avoid dereferencing a NULL pointer in case of function parameter 'ptr'.
Signed-off-by: Harshit Sharma <harshitsharmajs@gmail.com>
Change-Id: I5dba27d9757fb55476f3d5848f0ed26ae9494bee
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41698
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
| -rw-r--r-- | payloads/libpayload/libc/string.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/payloads/libpayload/libc/string.c b/payloads/libpayload/libc/string.c index c05a012f51..a481fef7eb 100644 --- a/payloads/libpayload/libc/string.c +++ b/payloads/libpayload/libc/string.c @@ -599,8 +599,6 @@ char *strtok_r(char *str, const char *delim, char **ptr) return start; } -static char **strtok_global; - /** * Extract first token in string str that is delimited by a character in tokens. * Destroys str, eliminates the token delimiter and uses global state. @@ -610,7 +608,9 @@ static char **strtok_global; */ char *strtok(char *str, const char *delim) { - return strtok_r(str, delim, strtok_global); + static char *strtok_ptr; + + return strtok_r(str, delim, &strtok_ptr); } /** |