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| author | Florian Westphal <fw@strlen.de> | 2026-05-19 20:10:08 +0200 |
|---|---|---|
| committer | Florian Westphal <fw@strlen.de> | 2026-05-22 12:28:46 +0200 |
| commit | c376f07e16c02239ed44cabb97145d03f65b4d15 (patch) | |
| tree | 77d57205264c39e2e74536ac04450363f760437d /include/linux/stackprotector.h | |
| parent | 47980b6dbf83961eec1c1363ea986e9c06ff8054 (diff) | |
netfilter: xt_cpu: prefer raw_smp_processor_id
With PREEMPT_RCU we get splat:
BUG: using smp_processor_id() in preemptible [..]
caller is cpu_mt+0x53/0xd0 net/netfilter/xt_cpu.c:37
CPU: 1 .. Comm: syz.3.1377 #0 PREEMPT(full)
Call Trace:
<TASK>
dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
check_preemption_disabled+0xd3/0xe0 lib/smp_processor_id.c:47
cpu_mt+0x53/0xd0 net/netfilter/xt_cpu.c:37
[..]
Just use raw version instead.
This is similar to 14d14a5d2957 ("netfilter: nft_meta: use raw_smp_processor_id()").
Fixes: 0ca743a55991 ("netfilter: nf_tables: add compatibility layer for x_tables")
Reported-by: syzbot+690d3e3ffa7335ac10eb@syzkaller.appspotmail.com
Signed-off-by: Florian Westphal <fw@strlen.de>
Diffstat (limited to 'include/linux/stackprotector.h')
0 files changed, 0 insertions, 0 deletions