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NFS4: Fix use-after-free in trace_event_raw_event_nfs4_set_lock
authorDave Wysochanski <dwysocha@redhat.com>
Fri, 11 Dec 2020 10:12:51 +0000 (05:12 -0500)
committerTrond Myklebust <trond.myklebust@hammerspace.com>
Wed, 6 Jan 2021 17:34:57 +0000 (12:34 -0500)
commit3d1a90ab0ed93362ec8ac85cf291243c87260c21
tree91ba14a8f9fcd7e627eb29681e144438aa90a8a6tree | snapshot
parente71ba9452f0b5b2e8dc8aa5445198cd9214a6a62commit | diff
NFS4: Fix use-after-free in trace_event_raw_event_nfs4_set_lock

It is only safe to call the tracepoint before rpc_put_task() because
'data' is freed inside nfs4_lock_release (rpc_release).

Fixes: 48c9579a1afe ("Adding stateid information to tracepoints")
Signed-off-by: Dave Wysochanski <dwysocha@redhat.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
fs/nfs/nfs4proc.c diff | blob | history
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