Song Liu f6b5d51976 perf: Fix list corruption in perf_cgroup_switch() ... commit 5f4e5ce638e6a490b976ade4a40017b40abb2da0 upstream. 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: 058fe1c044 ("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 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2022-02-16 12:54:31 +01:00
..
callchain.c
core.c	perf: Fix list corruption in perf_cgroup_switch()	2022-02-16 12:54:31 +01:00
hw_breakpoint.c
internal.h
Makefile
ring_buffer.c
uprobes.c	kernel: delete repeated words in comments	2022-02-01 17:25:45 +01:00