diff options
| author | Martynas Pumputis <m@lambda.lt> | 2018-11-23 17:43:26 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-12-17 09:38:33 +0100 |
| commit | 98547af247681d9c6ae354a75e8839b1ef88abc1 (patch) | |
| tree | 454095a427fc6797149bc6fcd4dc0562781e15a3 /REPORTING-BUGS | |
| parent | d2139ee71c89345e946f4df175d87bfce3dbe363 (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 'REPORTING-BUGS')
0 files changed, 0 insertions, 0 deletions