[v5.15] INFO: rcu detected stall in trace_call_bpf

[syzbot]

Hello,

syzbot found the following issue on:

HEAD commit: dc027a595035 Linux 5.15.209
git tree: linux-5.15.y
console output: https://syzkaller.appspot.com/x/log.txt?x=17eb04ae580000
kernel config: https://syzkaller.appspot.com/x/.config?x=353ae28c40b35af5
dashboard link: https://syzkaller.appspot.com/bug?extid=0e8c48c38ce6506c02ae
compiler: Debian clang version 21.1.8 (++20251221033036+2078da43e25a-1~exp1~20251221153213.50), Debian LLD 21.1.8

Unfortunately, I don't have any reproducer for this issue yet.

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/3d51783ddbbf/disk-dc027a59.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/b6879bfcdc05/vmlinux-dc027a59.xz
kernel image: https://storage.googleapis.com/syzbot-assets/e4755824edc0/bzImage-dc027a59.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+0e8c48...@syzkaller.appspotmail.com

rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 0-....: (10269 ticks this GP) idle=527/1/0x4000000000000000 softirq=11428/11429 fqs=4823
(t=10500 jiffies g=15289 q=1381)
NMI backtrace for cpu 0
CPU: 0 PID: 5088 Comm: syz.4.98 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
Call Trace:
<IRQ>
dump_stack_lvl+0x188/0x250 lib/dump_stack.c:106
nmi_cpu_backtrace+0x3a2/0x3d0 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x163/0x280 lib/nmi_backtrace.c:62
trigger_single_cpu_backtrace include/linux/nmi.h:166 [inline]
rcu_dump_cpu_stacks+0x22f/0x380 kernel/rcu/tree_stall.h:349
print_cpu_stall+0x31d/0x5f0 kernel/rcu/tree_stall.h:633
check_cpu_stall kernel/rcu/tree_stall.h:727 [inline]
rcu_pending kernel/rcu/tree.c:3936 [inline]
rcu_sched_clock_irq+0x6ea/0x1120 kernel/rcu/tree.c:2619
update_process_times+0x193/0x200 kernel/time/timer.c:2021
tick_sched_handle kernel/time/tick-sched.c:254 [inline]
tick_sched_timer+0x37d/0x560 kernel/time/tick-sched.c:1473
__run_hrtimer kernel/time/hrtimer.c:1685 [inline]
__hrtimer_run_queues+0x4b4/0xb70 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x3bb/0x8d0 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1097 [inline]
__sysvec_apic_timer_interrupt+0x137/0x4a0 arch/x86/kernel/apic/apic.c:1114
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
sysvec_apic_timer_interrupt+0x4d/0xc0 arch/x86/kernel/apic/apic.c:1108
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:__cant_sleep+0x98/0x220 kernel/sched/core.c:9673
Code: 48 c7 44 24 40 00 00 00 00 9c 8f 44 24 40 f7 44 24 40 00 02 00 00 43 c6 44 3c 08 f8 74 56 65 8b 05 65 49 ae 7e 25 ff ff ff 7f <39> d0 7f 46 48 c7 c0 80 f1 00 8c 48 c1 e8 03 42 80 3c 38 00 74 18
RSP: 0018:ffffc90000007740 EFLAGS: 00000206
RAX: 0000000000000103 RBX: 1ffff92000000f0c RCX: ffff888027e43b80
RDX: 0000000000000000 RSI: 0000000000000063 RDI: ffffffff8a3041e0
RBP: ffffc900000077f0 R08: 0000000000000001 R09: ffff8880b90351c8
R10: dffffc0000000000 R11: fffffbfff1b140de R12: 1ffff92000000ee8
R13: dffffc0000000000 R14: 0000000000000000 R15: dffffc0000000000
trace_call_bpf+0x88/0x5b0 kernel/trace/bpf_trace.c:99
perf_trace_run_bpf_submit+0x79/0x1c0 kernel/events/core.c:10016
perf_trace_lock_acquire+0x340/0x3e0 include/trace/events/lock.h:13
trace_lock_acquire include/trace/events/lock.h:13 [inline]
lock_acquire+0x3d7/0x400 kernel/locking/lockdep.c:5594
call_timer_fn+0xe6/0x540 kernel/time/timer.c:1645
expire_timers kernel/time/timer.c:1699 [inline]
__run_timers+0x53e/0x800 kernel/time/timer.c:1970
run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1983
handle_softirqs+0x339/0x830 kernel/softirq.c:576
__do_softirq kernel/softirq.c:610 [inline]
invoke_softirq kernel/softirq.c:450 [inline]
__irq_exit_rcu+0x13b/0x230 kernel/softirq.c:659
irq_exit_rcu+0x5/0x20 kernel/softirq.c:671
instr_sysvec_irq_work arch/x86/kernel/irq_work.c:17 [inline]
sysvec_irq_work+0x9d/0xc0 arch/x86/kernel/irq_work.c:17
</IRQ>
<TASK>
asm_sysvec_irq_work+0x16/0x20 arch/x86/include/asm/idtentry.h:713
RIP: 0010:rcu_read_unlock_special+0x7f/0x4a0 kernel/rcu/tree_plugin.h:674
Code: eb 03 48 b8 f1 f1 f1 f1 f8 f2 f2 f2 4a 89 04 2b 42 c7 44 2b 08 f8 f3 f3 f3 65 44 8b 35 f2 cc 9c 7e 41 f7 c6 00 00 f0 00 74 40 <48> c7 44 24 20 0e 36 e0 45 4a c7 04 2b 00 00 00 00 42 c7 44 2b 08
RSP: 0018:ffffc90002edf280 EFLAGS: 00000206
RAX: b92d2d1233e21e00 RBX: 1ffff920005dbe54 RCX: b92d2d1233e21e00
RDX: dffffc0000000000 RSI: ffffffff8a2b3180 RDI: ffffffff8a7a09c0
RBP: ffffc90002edf360 R08: ffffffff901d813f R09: 1ffffffff203b027
R10: dffffc0000000000 R11: fffffbfff203b028 R12: ffffffff8c323800
R13: dffffc0000000000 R14: 0000000000000246 R15: 0000000000000001
__rcu_read_unlock+0x78/0xd0 kernel/rcu/tree_plugin.h:422
rcu_read_unlock include/linux/rcupdate.h:772 [inline]
BPF_PROG_RUN_ARRAY include/linux/bpf.h:1444 [inline]
trace_call_bpf+0x4f9/0x5b0 kernel/trace/bpf_trace.c:127
perf_trace_run_bpf_submit+0x79/0x1c0 kernel/events/core.c:10016
perf_trace_lock_acquire+0x340/0x3e0 include/trace/events/lock.h:13
trace_lock_acquire include/trace/events/lock.h:13 [inline]
lock_acquire+0x3d7/0x400 kernel/locking/lockdep.c:5594
__raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline]
_raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:154
spin_lock include/linux/spinlock.h:364 [inline]
d_invalidate+0x7c/0x260 fs/dcache.c:1705
simple_recursive_removal+0x3e0/0x860 fs/libfs.c:290
debugfs_remove+0x52/0x70 fs/debugfs/inode.c:745
ieee80211_sta_debugfs_remove+0x3c/0x60 net/mac80211/debugfs_sta.c:1048
__sta_info_destroy_part2+0x307/0x3f0 net/mac80211/sta_info.c:1119
__sta_info_flush+0x3b7/0x460 net/mac80211/sta_info.c:1237
sta_info_flush net/mac80211/sta_info.h:845 [inline]
ieee80211_ibss_disconnect+0x262/0x710 net/mac80211/ibss.c:699
ieee80211_ibss_leave+0x21/0x120 net/mac80211/ibss.c:1873
rdev_leave_ibss net/wireless/rdev-ops.h:555 [inline]
__cfg80211_leave_ibss+0x1ce/0x3f0 net/wireless/ibss.c:213
cfg80211_leave_ibss+0x5a/0x70 net/wireless/ibss.c:231
cfg80211_change_iface+0x4a8/0xeb0 net/wireless/util.c:1051
cfg80211_wext_siwmode net/wireless/wext-compat.c:66 [inline]
__cfg80211_wext_siwmode+0x1c2/0x290 net/wireless/wext-compat.c:1569
ioctl_standard_call+0xd4/0x2b0 net/wireless/wext-core.c:1026
wireless_process_ioctl net/wireless/wext-core.c:964 [inline]
wext_ioctl_dispatch+0x3da/0x470 net/wireless/wext-core.c:997
wext_handle_ioctl+0x113/0x1d0 net/wireless/wext-core.c:1058
sock_ioctl+0x143/0x710 net/socket.c:1198
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:874 [inline]
__se_sys_ioctl+0xfa/0x170 fs/ioctl.c:860
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f4d54cdee59
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f4d52ef6028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f4d54f58180 RCX: 00007f4d54cdee59
RDX: 0000200000000080 RSI: 0000000000008b06 RDI: 0000000000000007
RBP: 00007f4d54d74d6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f4d54f58218 R14: 00007f4d54f58180 R15: 00007ffc50dc7d78
</TASK>


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