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| author | Danny Al-Gaaf <danny.al-gaaf@bisect.de> | 2015-06-18 08:55:49 +0200 |
|---|---|---|
| committer | Loic Dachary <ldachary@redhat.com> | 2015-09-02 20:09:40 +0200 |
| commit | 3dfca4f3106260e75019e064dfd077e21ba8199a (patch) | |
| tree | 281db98475eaf6cfe103d1a792cf85c36c5d8719 | |
| parent | 715443661c00558fe32f004a4be5f93f341b6e59 (diff) | |
| download | gf-complete-3dfca4f3106260e75019e064dfd077e21ba8199a.tar.gz | |
gf_w64.c: fix integer overflow
Fix for Coverity issue (from Ceph):
CID 1193086 (#1 of 1): Unintentional integer overflow (OVERFLOW_BEFORE_WIDEN)
overflow_before_widen: Potentially overflowing expression 1 << g_r with type
int (32 bits, signed) is evaluated using 32-bit arithmetic, and then used in
a context that expects an expression of type uint64_t (64 bits, unsigned).
Signed-off-by: Danny Al-Gaaf <danny.al-gaaf@bisect.de>
(cherry picked from commit 98e5e37159f4c7634305aa65c9bc98a36488a4a9)
| -rw-r--r-- | src/gf_w64.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/gf_w64.c b/src/gf_w64.c index 6e75f5e..9bc7042 100644 --- a/src/gf_w64.c +++ b/src/gf_w64.c @@ -994,7 +994,7 @@ int gf_w64_group_init(gf_t *gf) gd->reduce = gd->shift + (1 << g_s); gd->reduce[0] = 0; - for (i = 0; i < (1 << g_r); i++) { + for (i = 0; i < ((uint64_t)1 << g_r); i++) { p = 0; index = 0; for (j = 0; j < g_r; j++) { |