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| author | Steven Rostedt (Red Hat) <rostedt@goodmis.org> | 2016-03-18 15:46:48 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-04-12 09:08:59 -0700 |
| commit | aab3ba82f8445abe99f33e743e7316d0d55fee7b (patch) | |
| tree | 6e9069d79eb2578a3d34d86c37e1acedf3388a91 /include | |
| parent | aa60f652eeebb8345ed8c543d1a8d6b71f902de3 (diff) | |
| download | lwn-aab3ba82f8445abe99f33e743e7316d0d55fee7b.tar.gz lwn-aab3ba82f8445abe99f33e743e7316d0d55fee7b.zip | |
tracing: Fix crash from reading trace_pipe with sendfile
commit a29054d9478d0435ab01b7544da4f674ab13f533 upstream.
If tracing contains data and the trace_pipe file is read with sendfile(),
then it can trigger a NULL pointer dereference and various BUG_ON within the
VM code.
There's a patch to fix this in the splice_to_pipe() code, but it's also a
good idea to not let that happen from trace_pipe either.
Link: http://lkml.kernel.org/r/1457641146-9068-1-git-send-email-rabin@rab.in
Reported-by: Rabin Vincent <rabin.vincent@gmail.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include')
0 files changed, 0 insertions, 0 deletions