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(parent: 58c81e4) | patch
ceph: avoid putting the realm twice when decoding snaps fails
authorXiubo Li <xiubli@redhat.com>
Wed, 9 Nov 2022 03:00:39 +0000 (11:00 +0800)
committerIlya Dryomov <idryomov@gmail.com>
Mon, 14 Nov 2022 09:29:05 +0000 (10:29 +0100)
commit848e3060bf944e6f9f80165d754be5850e8c0e75
tree1f86a0506cd2e12498a2bc6cf3bec781d11c9342tree | snapshot
parent58c81e4487501be1721b194b740ab18b9f005174commit | diff
ceph: avoid putting the realm twice when decoding snaps fails

When decoding the snaps fails it maybe leaving the 'first_realm'
and 'realm' pointing to the same snaprealm memory. And then it'll
put it twice and could cause random use-after-free, BUG_ON, etc
issues.

Cc: stable@vger.kernel.org
Link: https://tracker.ceph.com/issues/57686
Signed-off-by: Xiubo Li <xiubli@redhat.com>
Reviewed-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
fs/ceph/snap.c diff | blob | history
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