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| author | Martynas Pumputis <m@lambda.lt> | 2018-11-23 17:43:26 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-12-17 21:55:10 +0100 |
| commit | ac86c99ca19ae57ba955312f5183e1a49aa9372e (patch) | |
| tree | 2caeb25e02361446785b5599fa7424c25141389a /tools/perf/scripts/python/netdev-times.py | |
| parent | d4327131dbe0147d0f07c5f0a65a0cb079bd2caa (diff) | |
bpf: fix check of allowed specifiers in bpf_trace_printk
[ Upstream commit 1efb6ee3edea57f57f9fb05dba8dcb3f7333f61f ]
A format string consisting of "%p" or "%s" followed by an invalid
specifier (e.g. "%p%\n" or "%s%") could pass the check which
would make format_decode (lib/vsprintf.c) to warn.
Fixes: 9c959c863f82 ("tracing: Allow BPF programs to call bpf_trace_printk()")
Reported-by: syzbot+1ec5c5ec949c4adaa0c4@syzkaller.appspotmail.com
Signed-off-by: Martynas Pumputis <m@lambda.lt>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python/netdev-times.py')
0 files changed, 0 insertions, 0 deletions