NFS: Fix a use after free in nfs_direct_join_group()

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commit be2fd1560e 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: ed5d588fe4 ("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>

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Trond Myklebust 2023-08-08 21:17:11 -04:00 • committed by Greg Kroah-Hartman

parent c8df36eedb

commit a3a9111996

1 changed files with 16 additions and 10 deletions

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fs/nfs/direct.c

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