crypto/ghash-generic.c in the Linux kernel before 3.1 allows local
users to cause a denial of service (NULL pointer dereference and OOPS)
or possibly have unspecified other impact by triggering a failed or
missing ghash_setkey function call, followed by a (1) ghash_update
function call or (2) ghash_final function call, as demonstrated by a
write operation on an AF_ALG socket.
Note:References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MLIST:[oss-security] 20111027 Re: CVE request: kernel: crypto: ghash: null pointer deref if no key is set
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