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author | Lukas Slebodnik <lslebodn@redhat.com> | 2013-08-19 07:24:46 +0200 |
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committer | Jakub Hrozek <jhrozek@redhat.com> | 2013-08-28 16:47:41 +0200 |
commit | b8d0374cd23db90fce203292ff547641f62e338a (patch) | |
tree | 949aae0fc7df5a9445739541b3870f7c09317755 /src/responder/nss/nsssrv_mmap_cache.c | |
parent | 4662725ffef62b3b2502481438effa7c8fef9f80 (diff) | |
download | sssd-b8d0374cd23db90fce203292ff547641f62e338a.tar.gz sssd-b8d0374cd23db90fce203292ff547641f62e338a.tar.bz2 sssd-b8d0374cd23db90fce203292ff547641f62e338a.zip |
mmap_cache: Use stricter check for hash keys.
ht_size is size of hash_table in bytes, but hash keys have type uint32_t
Diffstat (limited to 'src/responder/nss/nsssrv_mmap_cache.c')
-rw-r--r-- | src/responder/nss/nsssrv_mmap_cache.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/src/responder/nss/nsssrv_mmap_cache.c b/src/responder/nss/nsssrv_mmap_cache.c index 66afe6fd..84570ac2 100644 --- a/src/responder/nss/nsssrv_mmap_cache.c +++ b/src/responder/nss/nsssrv_mmap_cache.c @@ -177,7 +177,7 @@ static void sss_mc_add_rec_to_chain(struct sss_mc_ctx *mcc, struct sss_mc_rec *cur; uint32_t slot; - if (hash > mcc->ht_size) { + if (hash > MC_HT_ELEMS(mcc->ht_size)) { /* Invalid hash. This should never happen, but better * return than trying to access out of bounds memory */ return; @@ -234,9 +234,11 @@ static void sss_mc_rm_rec_from_chain(struct sss_mc_ctx *mcc, struct sss_mc_rec *cur = NULL; uint32_t slot; - if (hash > mcc->ht_size) { - /* Invalid hash. This should never happen, but better - * return than trying to access out of bounds memory */ + if (hash > MC_HT_ELEMS(mcc->ht_size)) { + /* It can happen if rec->hash1 and rec->hash2 was the same. + * or it is invalid hash. It is better to return + * than trying to access out of bounds memory + */ return; } |