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| author | Ard Biesheuvel <ardb@kernel.org> | 2021-03-02 21:33:03 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-05-11 14:47:16 +0200 |
| commit | 92f333793a78d9d721085aca4b2fa9ed01b7eb73 (patch) | |
| tree | 64337874346859d00b889fb31083ff6101bb5e09 /net | |
| parent | 298a44f3817167b99bbc06a9e6a5a7770b561ae8 (diff) | |
| download | linux-stable-92f333793a78d9d721085aca4b2fa9ed01b7eb73.tar.gz linux-stable-92f333793a78d9d721085aca4b2fa9ed01b7eb73.tar.bz2 linux-stable-92f333793a78d9d721085aca4b2fa9ed01b7eb73.zip | |
crypto: api - check for ERR pointers in crypto_destroy_tfm()
[ Upstream commit 83681f2bebb34dbb3f03fecd8f570308ab8b7c2c ]
Given that crypto_alloc_tfm() may return ERR pointers, and to avoid
crashes on obscure error paths where such pointers are presented to
crypto_destroy_tfm() (such as [0]), add an ERR_PTR check there
before dereferencing the second argument as a struct crypto_tfm
pointer.
[0] https://lore.kernel.org/linux-crypto/000000000000de949705bc59e0f6@google.com/
Reported-by: syzbot+12cf5fbfdeba210a89dd@syzkaller.appspotmail.com
Reviewed-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'net')
0 files changed, 0 insertions, 0 deletions