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authorArd Biesheuvel <ardb@kernel.org>2021-07-16 18:54:03 +0200
committerHerbert Xu <herbert@gondor.apana.org.au>2021-07-23 14:49:18 +0800
commit821720b9f34ec54106ebf012a712ba73bbcf47c2 (patch)
tree01fa733b27011d0d3b0d72f6d2c3c4050847efb9 /include/crypto
parentf03a3cab26c1b7f628a3be6d33ae1b483829b630 (diff)
crypto: x86/aes-ni - add missing error checks in XTS code
The updated XTS code fails to check the return code of skcipher_walk_virt, which may lead to skcipher_walk_abort() or skcipher_walk_done() being called while the walk argument is in an inconsistent state. So check the return value after each such call, and bail on errors. Fixes: 2481104fe98d ("crypto: x86/aes-ni-xts - rewrite and drop indirections via glue helper") Reported-by: Dave Hansen <dave.hansen@intel.com> Reported-by: syzbot <syzbot+5d1bad8042a8f0e8117a@syzkaller.appspotmail.com> Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Reviewed-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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