This is a note to let you know that I've just added the patch titled tracing: Use strlcpy() instead of strcpy() in __trace_find_cmdline() to the 4.9-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: tracing-use-strlcpy-instead-of-strcpy-in-__trace_find_cmdline.patch and it can be found in the queue-4.9 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From e09e28671cda63e6308b31798b997639120e2a21 Mon Sep 17 00:00:00 2001 From: Amey Telawane <ameyt@xxxxxxxxxxxxxx> Date: Wed, 3 May 2017 15:41:14 +0530 Subject: tracing: Use strlcpy() instead of strcpy() in __trace_find_cmdline() From: Amey Telawane <ameyt@xxxxxxxxxxxxxx> commit e09e28671cda63e6308b31798b997639120e2a21 upstream. Strcpy is inherently not safe, and strlcpy() should be used instead. __trace_find_cmdline() uses strcpy() because the comms saved must have a terminating nul character, but it doesn't hurt to add the extra protection of using strlcpy() instead of strcpy(). Link: http://lkml.kernel.org/r/1493806274-13936-1-git-send-email-amit.pundir@xxxxxxxxxx Signed-off-by: Amey Telawane <ameyt@xxxxxxxxxxxxxx> [AmitP: Cherry-picked this commit from CodeAurora kernel/msm-3.10 https://source.codeaurora.org/quic/la/kernel/msm-3.10/commit/?id=2161ae9a70b12cf18ac8e5952a20161ffbccb477] Signed-off-by: Amit Pundir <amit.pundir@xxxxxxxxxx> [ Updated change log and removed the "- 1" from len parameter ] Signed-off-by: Steven Rostedt (VMware) <rostedt@xxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- kernel/trace/trace.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -1862,7 +1862,7 @@ static void __trace_find_cmdline(int pid map = savedcmd->map_pid_to_cmdline[pid]; if (map != NO_CMDLINE_MAP) - strcpy(comm, get_saved_cmdlines(map)); + strlcpy(comm, get_saved_cmdlines(map), TASK_COMM_LEN); else strcpy(comm, "<...>"); } Patches currently in stable-queue which might be from ameyt@xxxxxxxxxxxxxx are queue-4.9/tracing-use-strlcpy-instead-of-strcpy-in-__trace_find_cmdline.patch