swh:1:snp:173f8deb0c56c557784b4fd217e7608ac6197844
Revision 2840f84f74035e5a535959d5f17269c69fa6edc5 authored by Steven Rostedt (VMware) on 11 December 2018, 04:58:01 UTC, committed by Steven Rostedt (VMware) on 11 December 2018, 18:50:28 UTC
The following commands will cause a memory leak:

 # cd /sys/kernel/tracing
 # mkdir instances/foo
 # echo schedule > instance/foo/set_ftrace_filter
 # rmdir instances/foo

The reason is that the hashes that hold the filters to set_ftrace_filter and
set_ftrace_notrace are not freed if they contain any data on the instance
and the instance is removed.

Found by kmemleak detector.

Cc: stable@vger.kernel.org
Fixes: 591dffdade9f ("ftrace: Allow for function tracing instance to filter functions")
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
1 parent 3cec638
History
Tip revision: a9c9a6f741cdaa2fa9ba24a790db8d07295761e3 authored by Linus Torvalds on 02 September 2021, 22:09:46 UTC
Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Tip revision: a9c9a6f
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