diff options
| author | Chuck Lever <chuck.lever@oracle.com> | 2020-10-23 10:41:07 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-11-18 19:20:26 +0100 |
| commit | dfcb33773877f31a40ba0583e622935ef105c90b (patch) | |
| tree | 6f81995a7e2ceb38f6218b365548fcd6d02485e2 /include/trace | |
| parent | b9e8f9d139bd7ea83e2e896ea08ae757cad5e7a8 (diff) | |
SUNRPC: Fix general protection fault in trace_rpc_xdr_overflow()
[ Upstream commit d321ff589c16d8c2207485a6d7fbdb14e873d46e ]
The TP_fast_assign() section is careful enough not to dereference
xdr->rqst if it's NULL. The TP_STRUCT__entry section is not.
Fixes: 5582863f450c ("SUNRPC: Add XDR overflow trace event")
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'include/trace')
| -rw-r--r-- | include/trace/events/sunrpc.h | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/include/trace/events/sunrpc.h b/include/trace/events/sunrpc.h index 28df77a948e5..f16e9fb97e9f 100644 --- a/include/trace/events/sunrpc.h +++ b/include/trace/events/sunrpc.h @@ -357,10 +357,10 @@ TRACE_EVENT(rpc_xdr_overflow, __field(size_t, tail_len) __field(unsigned int, page_len) __field(unsigned int, len) - __string(progname, - xdr->rqst->rq_task->tk_client->cl_program->name) - __string(procedure, - xdr->rqst->rq_task->tk_msg.rpc_proc->p_name) + __string(progname, xdr->rqst ? + xdr->rqst->rq_task->tk_client->cl_program->name : "unknown") + __string(procedure, xdr->rqst ? + xdr->rqst->rq_task->tk_msg.rpc_proc->p_name : "unknown") ), TP_fast_assign( |