af_key: Do not call xfrm_probe_algs in parallel
[ Upstream commit ba953a9d89a00c078b85f4b190bc1dde66fe16b5 ]
When namespace support was added to xfrm/afkey, it caused the
previously single-threaded call to xfrm_probe_algs to become
multi-threaded. This is buggy and needs to be fixed with a mutex.
BUG=b/245720223
TEST=presubmit
RELEASE_NOTE=Fixed CVE-2022-3028 in the Linux kernel.
cos-patch: security-high
Reported-by: Abhishek Shah <abhishek.shah@columbia.edu>
Fixes: 283bc9f35bbb ("xfrm: Namespacify xfrm state/policy locks")
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Change-Id: Id852aece0b73fb8cee79d0e910c6fdd90cba5f31
Reviewed-on: https://cos-review.googlesource.com/c/third_party/kernel/+/36939
Tested-by: Cusky Presubmit Bot <presubmit@cos-infra-prod.iam.gserviceaccount.com>
Reviewed-by: Robert Kolchmeyer <rkolchmeyer@google.com>
1 file changed
