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| author | Natalia Petrova <n.petrova@fintech.ru> | 2023-01-11 15:04:09 +0300 |
|---|---|---|
| committer | Steven Rostedt (Google) <rostedt@goodmis.org> | 2023-01-24 18:19:36 -0500 |
| commit | 8b152e9150d07a885f95e1fd401fc81af202d9a4 (patch) | |
| tree | 5787b6475acc7debb27187745182b92f7567a825 /kernel/trace/trace_mmiotrace.c | |
| parent | 685b64e4d6da4be8b4595654a57db663b3d1dfc2 (diff) | |
trace_events_hist: add check for return value of 'create_hist_field'
Function 'create_hist_field' is called recursively at
trace_events_hist.c:1954 and can return NULL-value that's why we have
to check it to avoid null pointer dereference.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Link: https://lkml.kernel.org/r/20230111120409.4111-1-n.petrova@fintech.ru
Cc: stable@vger.kernel.org
Fixes: 30350d65ac56 ("tracing: Add variable support to hist triggers")
Signed-off-by: Natalia Petrova <n.petrova@fintech.ru>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace/trace_mmiotrace.c')
0 files changed, 0 insertions, 0 deletions