]> www.infradead.org Git - users/jedix/linux-maple.git/commit
tracing: tprobe-events: Fix a memory leak when tprobe with $retval
authorMasami Hiramatsu (Google) <mhiramat@kernel.org>
Wed, 26 Feb 2025 06:18:46 +0000 (15:18 +0900)
committerMasami Hiramatsu (Google) <mhiramat@kernel.org>
Thu, 27 Feb 2025 00:10:21 +0000 (09:10 +0900)
commitac965d7d88fc36fb42e3d50225c0a44dd8326da4
treeaf1819fa7e03a2af1f44f0ef178b386363dbcabf
parentd082ecbc71e9e0bf49883ee4afd435a77a5101b6
tracing: tprobe-events: Fix a memory leak when tprobe with $retval

Fix a memory leak when a tprobe is defined with $retval. This
combination is not allowed, but the parse_symbol_and_return() does
not free the *symbol which should not be used if it returns the error.
Thus, it leaks the *symbol memory in that error path.

Link: https://lore.kernel.org/all/174055072650.4079315.3063014346697447838.stgit@mhiramat.tok.corp.google.com/
Fixes: ce51e6153f77 ("tracing: fprobe-event: Fix to check tracepoint event and return")
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Cc: stable@vger.kernel.org
kernel/trace/trace_fprobe.c