From: Chuck Lever Date: Tue, 30 Sep 2025 14:05:20 +0000 (-0400) Subject: NFSD: Fix crash in nfsd4_read_release() X-Git-Tag: v6.12.58~561 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a4948875ed0599c037dc438c11891c9012721b1d;p=thirdparty%2Fkernel%2Fstable.git NFSD: Fix crash in nfsd4_read_release() commit abb1f08a2121dd270193746e43b2a9373db9ad84 upstream. When tracing is enabled, the trace_nfsd_read_done trace point crashes during the pynfs read.testNoFh test. Fixes: 15a8b55dbb1b ("nfsd: call op_release, even when op_func returns an error") Cc: stable@vger.kernel.org Reviewed-by: Jeff Layton Signed-off-by: Chuck Lever Signed-off-by: Greg Kroah-Hartman --- diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c index 6040de0923f85..bc2bb92a624ab 100644 --- a/fs/nfsd/nfs4proc.c +++ b/fs/nfsd/nfs4proc.c @@ -982,10 +982,11 @@ nfsd4_read(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, static void nfsd4_read_release(union nfsd4_op_u *u) { - if (u->read.rd_nf) + if (u->read.rd_nf) { + trace_nfsd_read_done(u->read.rd_rqstp, u->read.rd_fhp, + u->read.rd_offset, u->read.rd_length); nfsd_file_put(u->read.rd_nf); - trace_nfsd_read_done(u->read.rd_rqstp, u->read.rd_fhp, - u->read.rd_offset, u->read.rd_length); + } } static __be32