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| author | Amey Telawane <ameyt@codeaurora.org> | 2017-05-03 15:41:14 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-05-22 10:38:20 +0200 |
| commit | 150381302389fa01425396489a21dc7c53383a5b (patch) | |
| tree | ef3208213fcd8bb0185cd8f64fed153a52840d2d /kernel | |
| parent | 9da15c9a594100ba434246cb29e6fedd1a3eb8bc (diff) | |
| download | linux-stable-150381302389fa01425396489a21dc7c53383a5b.tar.gz linux-stable-150381302389fa01425396489a21dc7c53383a5b.tar.bz2 linux-stable-150381302389fa01425396489a21dc7c53383a5b.zip | |
tracing: Use strlcpy() instead of strcpy() in __trace_find_cmdline()
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@linaro.org
Signed-off-by: Amey Telawane <ameyt@codeaurora.org>
[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@linaro.org>
[ Updated change log and removed the "- 1" from len parameter ]
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/trace/trace.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index 8822ae65a506..37664eb48fb7 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -1624,7 +1624,7 @@ static void __trace_find_cmdline(int pid, char comm[]) 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, "<...>"); } |