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authorSteven Rostedt (Red Hat) <rostedt@goodmis.org>2016-03-18 15:46:48 -0400
committerSteven Rostedt <rostedt@goodmis.org>2016-03-18 15:51:42 -0400
commita29054d9478d0435ab01b7544da4f674ab13f533 (patch)
tree31360ad568f3004066f220cb8a4b16a0489c85a5 /lib/parser.c
parentcb86e05390debcc084cfdb0a71ed4c5dbbec517d (diff)
downloadlinux-a29054d9478d0435ab01b7544da4f674ab13f533.tar.gz
tracing: Fix crash from reading trace_pipe with sendfile
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

Cc: stable@vger.kernel.org # 2.6.30+
Reported-by: Rabin Vincent <rabin.vincent@gmail.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'lib/parser.c')
0 files changed, 0 insertions, 0 deletions