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| author | Jeff Layton <jlayton@kernel.org> | 2025-01-25 20:13:18 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-02-21 14:01:14 +0100 |
| commit | a88ca5d6d9652fd34b4c9d8bfcf8d40d8e9acb96 (patch) | |
| tree | 854cd113b2005ba719fb58b578afe175b174409c /scripts/patch-kernel | |
| parent | cedfbb92cf97a6bff3d25633001d9c44442ee854 (diff) | |
| download | linux-a88ca5d6d9652fd34b4c9d8bfcf8d40d8e9acb96.tar.gz linux-a88ca5d6d9652fd34b4c9d8bfcf8d40d8e9acb96.tar.bz2 linux-a88ca5d6d9652fd34b4c9d8bfcf8d40d8e9acb96.zip | |
nfsd: validate the nfsd_serv pointer before calling svc_wake_up
commit b9382e29ca538b879645899ce45d652a304e2ed2 upstream.
nfsd_file_dispose_list_delayed can be called from the filecache
laundrette, which is shut down after the nfsd threads are shut down and
the nfsd_serv pointer is cleared. If nn->nfsd_serv is NULL then there
are no threads to wake.
Ensure that the nn->nfsd_serv pointer is non-NULL before calling
svc_wake_up in nfsd_file_dispose_list_delayed. This is safe since the
svc_serv is not freed until after the filecache laundrette is cancelled.
Reported-by: Salvatore Bonaccorso <carnil@debian.org>
Closes: https://bugs.debian.org/1093734
Fixes: ffb402596147 ("nfsd: Don't leave work of closing files to a work queue")
Cc: stable@vger.kernel.org
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: NeilBrown <neilb@suse.de>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'scripts/patch-kernel')
0 files changed, 0 insertions, 0 deletions