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NFS: Fix a use after free in nfs_direct_join_group()
authorTrond Myklebust <trond.myklebust@hammerspace.com>
Wed, 9 Aug 2023 01:17:11 +0000 (21:17 -0400)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 30 Aug 2023 14:23:15 +0000 (16:23 +0200)
commit7c262127d264f28fca52351226d182eeb553abc9
tree8d77b3b2ed0f8083d90b32ba367cd6a975e58614tree | snapshot
parentf3c5697aae6250e7825ae485c5bb0575a4d340a1commit | diff
NFS: Fix a use after free in nfs_direct_join_group()

commit be2fd1560eb57b7298aa3c258ddcca0d53ecdea3 upstream.

Be more careful when tearing down the subrequests of an O_DIRECT write
as part of a retransmission.

Reported-by: Chris Mason <clm@fb.com>
Fixes: ed5d588fe47f ("NFS: Try to join page groups before an O_DIRECT retransmission")
Cc: stable@vger.kernel.org
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
fs/nfs/direct.c diff | blob | blame | history
Mirror https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git