diff options
| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-12-03 07:55:28 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-12-03 07:55:28 +0100 |
| commit | d5d12ce229c17fde99c6f8cc42f3701264a60e8c (patch) | |
| tree | 9d3c4ec71ea8cab74d02b8311997630d651767eb /kernel/trace/bpf_trace.c | |
| parent | 7626e002225a4c1b9455689b1f22909dfeff43ca (diff) | |
| parent | 2595646791c319cadfdbf271563aac97d0843dc7 (diff) | |
| download | talos-op-linux-d5d12ce229c17fde99c6f8cc42f3701264a60e8c.tar.gz talos-op-linux-d5d12ce229c17fde99c6f8cc42f3701264a60e8c.zip | |
Merge 4.20-rc5 into staging-next
We need the staging fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'kernel/trace/bpf_trace.c')
| -rw-r--r-- | kernel/trace/bpf_trace.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/kernel/trace/bpf_trace.c b/kernel/trace/bpf_trace.c index 08fcfe440c63..9864a35c8bb5 100644 --- a/kernel/trace/bpf_trace.c +++ b/kernel/trace/bpf_trace.c @@ -196,11 +196,13 @@ BPF_CALL_5(bpf_trace_printk, char *, fmt, u32, fmt_size, u64, arg1, i++; } else if (fmt[i] == 'p' || fmt[i] == 's') { mod[fmt_cnt]++; - i++; - if (!isspace(fmt[i]) && !ispunct(fmt[i]) && fmt[i] != 0) + /* disallow any further format extensions */ + if (fmt[i + 1] != 0 && + !isspace(fmt[i + 1]) && + !ispunct(fmt[i + 1])) return -EINVAL; fmt_cnt++; - if (fmt[i - 1] == 's') { + if (fmt[i] == 's') { if (str_seen) /* allow only one '%s' per fmt string */ return -EINVAL; |
