diff options
| author |   Song Liu <song@kernel.org> | 2022-02-03 16:40:57 -0800 |
|---|---|---|
| committer |   Peter Zijlstra <peterz@infradead.org> | 2022-02-06 22:37:27 +0100 |
| commit | 5f4e5ce638e6a490b976ade4a40017b40abb2da0 (patch) | |
| tree | e1b716c4008595ffb28775f1357d8da88414befc /tools/perf/util/scripting-engines/trace-event-python.c | |
| parent | perf/x86/intel/pt: Fix crash with stop filters in single-range mode (diff) | |
| download | wireguard-linux-5f4e5ce638e6a490b976ade4a40017b40abb2da0.tar.xz wireguard-linux-5f4e5ce638e6a490b976ade4a40017b40abb2da0.zip | |
perf: Fix list corruption in perf_cgroup_switch()
There's list corruption on cgrp_cpuctx_list. This happens on the
following path:
perf_cgroup_switch: list_for_each_entry(cgrp_cpuctx_list)
cpu_ctx_sched_in
ctx_sched_in
ctx_pinned_sched_in
merge_sched_in
perf_cgroup_event_disable: remove the event from the list
Use list_for_each_entry_safe() to allow removing an entry during
iteration.
Fixes: 058fe1c0440e ("perf/core: Make cgroup switch visit only cpuctxs with cgroup events")
Signed-off-by: Song Liu <song@kernel.org>
Reviewed-by: Rik van Riel <riel@surriel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20220204004057.2961252-1-song@kernel.org
Diffstat (limited to 'tools/perf/util/scripting-engines/trace-event-python.c')
0 files changed, 0 insertions, 0 deletions