Jiri Olsa d099f594ad kallsyms: Disable preemption for find_kallsyms_symbol_value ... Artem reported suspicious RCU usage [1]. The reason is that verifier calls find_kallsyms_symbol_value with preemption enabled which will trigger suspicious RCU usage warning in rcu_dereference_sched call. Disabling preemption in find_kallsyms_symbol_value and adding __find_kallsyms_symbol_value function. Fixes: 31bf1dbccf ("bpf: Fix attaching fentry/fexit/fmod_ret/lsm to modules") Reported-by: Artem Savkov <asavkov@redhat.com> Signed-off-by: Jiri Olsa <jolsa@kernel.org> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Tested-by: Artem Savkov <asavkov@redhat.com> Reviewed-by: Zhen Lei <thunder.leizhen@huawei.com> Link: https://lore.kernel.org/bpf/20230403220254.2191240-1-jolsa@kernel.org [1] https://lore.kernel.org/bpf/ZBrPMkv8YVRiWwCR@samus.usersys.redhat.com/		2023-04-04 17:11:59 -07:00
..
debug_kmemleak.c
decompress.c
internal.h
kallsyms.c	kallsyms: Disable preemption for find_kallsyms_symbol_value	2023-04-04 17:11:59 -07:00
Kconfig
kdb.c
livepatch.c
main.c	module: Use kstrtobool() instead of strtobool()	2023-01-25 14:07:21 -08:00
Makefile
procfs.c
signing.c
strict_rwx.c
sysfs.c
tracking.c
tree_lookup.c	module: Add CONFIG_ARCH_WANTS_MODULES_DATA_IN_VMALLOC	2022-04-05 08:43:05 -07:00
version.c	Modules updates for v5.19-rc1	2022-05-26 17:13:43 -07:00