rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 0-...!: (2 ticks this GP) idle=bff/1/0x4000000000000000 softirq=27332/27332 fqs=0
(detected by 1, t=10502 jiffies, g=45269, q=1855)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 17197 Comm: syz-executor.0 Not tainted 5.15.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:check_region_inline mm/kasan/generic.c:169 [inline]
RIP: 0010:kasan_check_range+0x9/0x180 mm/kasan/generic.c:189
Code: 00 48 89 f2 be f5 00 00 00 e9 c3 32 3a 02 0f 1f 00 48 89 f2 be f8 00 00 00 e9 b3 32 3a 02 0f 1f 00 48 85 f6 0f 84 70 01 00 00 <49> 89 f9 41 54 44 0f b6 c2 49 01 f1 55 53 0f 82 18 01 00 00 48 b8
RSP: 0018:ffffc900000078b8 EFLAGS: 00000002
RAX: 0000000000000000 RBX: 0000000000000028 RCX: ffffffff815c4672
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff8fd3ba00
RBP: 0000000000000002 R08: 0000000000000000 R09: ffffffff8fd3ba07
R10: fffffbfff1fa7740 R11: 0000000000000000 R12: ffff888078d5a800
R13: ffff888078d59d00 R14: 0000000000000000 R15: e9dea97a144a6d3b
FS: 00007f5840086700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055ae17762308 CR3: 000000003441e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
instrument_atomic_read include/linux/instrumented.h:71 [inline]
test_bit include/asm-generic/bitops/instrumented-non-atomic.h:134 [inline]
hlock_class kernel/locking/lockdep.c:199 [inline]
__lock_acquire+0xbc2/0x54a0 kernel/locking/lockdep.c:5012
lock_acquire kernel/locking/lockdep.c:5625 [inline]
lock_acquire+0x1ab/0x510 kernel/locking/lockdep.c:5590
rcu_lock_acquire include/linux/rcupdate.h:268 [inline]
rcu_read_lock include/linux/rcupdate.h:688 [inline]
BPF_PROG_RUN_ARRAY include/linux/bpf.h:1286 [inline]
trace_call_bpf+0x10f/0x5f0 kernel/trace/bpf_trace.c:127
perf_trace_run_bpf_submit+0x91/0x210 kernel/events/core.c:9708
perf_trace_preemptirq_template+0x296/0x460 include/trace/events/preemptirq.h:14
trace_irq_enable_rcuidle include/trace/events/preemptirq.h:40 [inline]
trace_irq_enable_rcuidle include/trace/events/preemptirq.h:40 [inline]
trace_hardirqs_on+0x156/0x1c0 kernel/trace/trace_preemptirq.c:44
asm_sysvec_irq_work+0x12/0x20 arch/x86/include/asm/idtentry.h:664
RIP: 0010:get_current arch/x86/include/asm/current.h:15 [inline]
RIP: 0010:__rcu_read_unlock+0xc4/0x570 kernel/rcu/tree_plugin.h:425
Code: b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 0f b6 04 02 84 c0 74 08 3c 03 0f 8e b6 01 00 00 8b 85 40 04 00 00 85 c0 75 54 <65> 48 8b 1c 25 40 70 02 00 48 8d bb 3c 04 00 00 48 b8 00 00 00 00
RSP: 0018:ffffc90000007dc0 EFLAGS: 00000206
RAX: 0000000000000006 RBX: ffff8880b9c3a900 RCX: 1ffffffff1faba5e
RDX: 0000000000000000 RSI: 0000000000000101 RDI: 0000000000000000
RBP: ffffffff8b98bb00 R08: 0000000000000001 R09: ffffffff8fd3ba5f
R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000001
R13: ffffffff85379800 R14: 0000000000000200 R15: ffffffff85374690
rcu_read_unlock include/linux/rcupdate.h:720 [inline]
ieee80211_iterate_active_interfaces_atomic+0x92/0x180 net/mac80211/util.c:831
mac80211_hwsim_beacon+0xcd/0x1c0 drivers/net/wireless/mac80211_hwsim.c:1861
__run_hrtimer kernel/time/hrtimer.c:1685 [inline]
__hrtimer_run_queues+0x609/0xe50 kernel/time/hrtimer.c:1749
hrtimer_run_softirq+0x17b/0x360 kernel/time/hrtimer.c:1766
__do_softirq+0x29b/0x9c2 kernel/softirq.c:558
invoke_softirq kernel/softirq.c:432 [inline]
__irq_exit_rcu+0x123/0x180 kernel/softirq.c:636
irq_exit_rcu+0x5/0x20 kernel/softirq.c:648
sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1097
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:do_raw_spin_lock+0xa/0x2b0 kernel/locking/spinlock_debug.c:113
Code: 0c 24 e8 c9 d5 60 00 48 8b 74 24 08 4c 8b 0c 24 eb b3 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 48 b8 00 00 00 00 00 fc ff df <41> 56 41 55 41 54 55 48 89 fd 48 83 c7 04 53 48 83 ec 68 48 c7 44
RSP: 0018:ffffc90002e0f6b0 EFLAGS: 00000282
RAX: dffffc0000000000 RBX: ffff8880110908c0 RCX: ffffffff815c50df
RDX: 1ffff1100f1ab4eb RSI: 0000000000000001 RDI: ffff888011090a90
RBP: ffffea000133cfc0 R08: 0000000000000000 R09: ffffffff8fd3ba5f
R10: fffffbfff1fa774b R11: 0000000000000000 R12: 000000000000268e
R13: 0000000000000000 R14: 0000000000000000 R15: ffff88801a67b658
spin_lock include/linux/spinlock.h:350 [inline]
__find_get_block_slow fs/buffer.c:206 [inline]
__find_get_block fs/buffer.c:1308 [inline]
__find_get_block+0x4df/0xdb0 fs/buffer.c:1302
__getblk_gfp+0x28/0x80 fs/buffer.c:1330
sb_getblk include/linux/buffer_head.h:327 [inline]
ext4_getblk+0x1d7/0x6b0 fs/ext4/inode.c:854
ext4_bread_batch+0x7c/0x550 fs/ext4/inode.c:921
__ext4_find_entry+0x482/0x1050 fs/ext4/namei.c:1600
ext4_lookup_entry fs/ext4/namei.c:1701 [inline]
ext4_lookup fs/ext4/namei.c:1769 [inline]
ext4_lookup+0x4fc/0x730 fs/ext4/namei.c:1760
__lookup_hash+0x117/0x180 fs/namei.c:1558
filename_create+0x184/0x480 fs/namei.c:3655
user_path_create+0x38/0x50 fs/namei.c:3714
bpf_obj_do_pin kernel/bpf/inode.c:447 [inline]
bpf_obj_pin_user+0xb2/0x310 kernel/bpf/inode.c:491
bpf_obj_pin kernel/bpf/syscall.c:2388 [inline]
__sys_bpf+0x6dd/0x5f00 kernel/bpf/syscall.c:4621
__do_sys_bpf kernel/bpf/syscall.c:4722 [inline]
__se_sys_bpf kernel/bpf/syscall.c:4720 [inline]
__x64_sys_bpf+0x75/0xb0 kernel/bpf/syscall.c:4720
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f5842b10ae9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f5840086188 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007f5842c23f60 RCX: 00007f5842b10ae9
RDX: 0000000000000010 RSI: 0000000020000480 RDI: 0000000000000006
RBP: 00007f5842b6af6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd69a0f8cf R14: 00007f5840086300 R15: 0000000000022000
rcu: rcu_preempt kthread timer wakeup didn't happen for 10501 jiffies! g45269 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: Possible timer handling issue on cpu=0 timer-softirq=19712
rcu: rcu_preempt kthread starved for 10502 jiffies! g45269 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=0
rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt state:I stack:28616 pid: 14 ppid: 2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:4969 [inline]
__schedule+0xa9a/0x4940 kernel/sched/core.c:6250
schedule+0xd2/0x260 kernel/sched/core.c:6323
schedule_timeout+0x14a/0x2a0 kernel/time/timer.c:1881
rcu_gp_fqs_loop+0x186/0x810 kernel/rcu/tree.c:1955
rcu_gp_kthread+0x1de/0x320 kernel/rcu/tree.c:2128
kthread+0x405/0x4f0 kernel/kthread.c:327
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 17197 Comm: syz-executor.0 Not tainted 5.15.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:kasan_mem_to_shadow include/linux/kasan.h:55 [inline]
RIP: 0010:memory_is_poisoned_n mm/kasan/generic.c:128 [inline]
RIP: 0010:memory_is_poisoned mm/kasan/generic.c:159 [inline]
RIP: 0010:check_region_inline mm/kasan/generic.c:180 [inline]
RIP: 0010:kasan_check_range+0x44/0x180 mm/kasan/generic.c:189
Code: 01 00 00 48 b8 ff ff ff ff ff 7f ff ff 48 39 c7 0f 86 05 01 00 00 49 83 e9 01 48 89 fd 48 b8 00 00 00 00 00 fc ff df 4d 89 ca <48> c1 ed 03 49 c1 ea 03 48 01 c5 49 01 c2 48 89 e8 49 8d 5a 01 48
RSP: 0018:ffffc90000007b38 EFLAGS: 00000096
RAX: dffffc0000000000 RBX: 1ffff92000000f72 RCX: ffffffff815c1f0f
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff8fd3ba98
RBP: ffffffff8fd3ba98 R08: 0000000000000000 R09: ffffffff8fd3ba9f
R10: ffffffff8fd3ba9f R11: 0000000000000000 R12: 0000000000000003
R13: ffff888078d5a760 R14: 00000000000004d7 R15: ffff888078d5a780
FS: 00007f5840086700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055ae17762308 CR3: 000000003441e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
instrument_atomic_read include/linux/instrumented.h:71 [inline]
test_bit include/asm-generic/bitops/instrumented-non-atomic.h:134 [inline]
hlock_class kernel/locking/lockdep.c:199 [inline]
mark_lock+0xef/0x17b0 kernel/locking/lockdep.c:4571
mark_held_locks+0x9f/0xe0 kernel/locking/lockdep.c:4194
__trace_hardirqs_on_caller kernel/locking/lockdep.c:4212 [inline]
lockdep_hardirqs_on_prepare kernel/locking/lockdep.c:4280 [inline]
lockdep_hardirqs_on_prepare+0x135/0x400 kernel/locking/lockdep.c:4232
trace_hardirqs_on+0x5b/0x1c0 kernel/trace/trace_preemptirq.c:49
asm_sysvec_irq_work+0x12/0x20 arch/x86/include/asm/idtentry.h:664
RIP: 0010:get_current arch/x86/include/asm/current.h:15 [inline]
RIP: 0010:__rcu_read_unlock+0xc4/0x570 kernel/rcu/tree_plugin.h:425
Code: b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 0f b6 04 02 84 c0 74 08 3c 03 0f 8e b6 01 00 00 8b 85 40 04 00 00 85 c0 75 54 <65> 48 8b 1c 25 40 70 02 00 48 8d bb 3c 04 00 00 48 b8 00 00 00 00
RSP: 0018:ffffc90000007dc0 EFLAGS: 00000206
RAX: 0000000000000006 RBX: ffff8880b9c3a900 RCX: 1ffffffff1faba5e
RDX: 0000000000000000 RSI: 0000000000000101 RDI: 0000000000000000
RBP: ffffffff8b98bb00 R08: 0000000000000001 R09: ffffffff8fd3ba5f
R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000001
R13: ffffffff85379800 R14: 0000000000000200 R15: ffffffff85374690
rcu_read_unlock include/linux/rcupdate.h:720 [inline]
ieee80211_iterate_active_interfaces_atomic+0x92/0x180 net/mac80211/util.c:831
mac80211_hwsim_beacon+0xcd/0x1c0 drivers/net/wireless/mac80211_hwsim.c:1861
__run_hrtimer kernel/time/hrtimer.c:1685 [inline]
__hrtimer_run_queues+0x609/0xe50 kernel/time/hrtimer.c:1749
hrtimer_run_softirq+0x17b/0x360 kernel/time/hrtimer.c:1766
__do_softirq+0x29b/0x9c2 kernel/softirq.c:558
invoke_softirq kernel/softirq.c:432 [inline]
__irq_exit_rcu+0x123/0x180 kernel/softirq.c:636
irq_exit_rcu+0x5/0x20 kernel/softirq.c:648
sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1097
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:do_raw_spin_lock+0xa/0x2b0 kernel/locking/spinlock_debug.c:113
Code: 0c 24 e8 c9 d5 60 00 48 8b 74 24 08 4c 8b 0c 24 eb b3 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 48 b8 00 00 00 00 00 fc ff df <41> 56 41 55 41 54 55 48 89 fd 48 83 c7 04 53 48 83 ec 68 48 c7 44
RSP: 0018:ffffc90002e0f6b0 EFLAGS: 00000282
RAX: dffffc0000000000 RBX: ffff8880110908c0 RCX: ffffffff815c50df
RDX: 1ffff1100f1ab4eb RSI: 0000000000000001 RDI: ffff888011090a90
RBP: ffffea000133cfc0 R08: 0000000000000000 R09: ffffffff8fd3ba5f
R10: fffffbfff1fa774b R11: 0000000000000000 R12: 000000000000268e
R13: 0000000000000000 R14: 0000000000000000 R15: ffff88801a67b658
spin_lock include/linux/spinlock.h:350 [inline]
__find_get_block_slow fs/buffer.c:206 [inline]
__find_get_block fs/buffer.c:1308 [inline]
__find_get_block+0x4df/0xdb0 fs/buffer.c:1302
__getblk_gfp+0x28/0x80 fs/buffer.c:1330
sb_getblk include/linux/buffer_head.h:327 [inline]
ext4_getblk+0x1d7/0x6b0 fs/ext4/inode.c:854
ext4_bread_batch+0x7c/0x550 fs/ext4/inode.c:921
__ext4_find_entry+0x482/0x1050 fs/ext4/namei.c:1600
ext4_lookup_entry fs/ext4/namei.c:1701 [inline]
ext4_lookup fs/ext4/namei.c:1769 [inline]
ext4_lookup+0x4fc/0x730 fs/ext4/namei.c:1760
__lookup_hash+0x117/0x180 fs/namei.c:1558
filename_create+0x184/0x480 fs/namei.c:3655
user_path_create+0x38/0x50 fs/namei.c:3714
bpf_obj_do_pin kernel/bpf/inode.c:447 [inline]
bpf_obj_pin_user+0xb2/0x310 kernel/bpf/inode.c:491
bpf_obj_pin kernel/bpf/syscall.c:2388 [inline]
__sys_bpf+0x6dd/0x5f00 kernel/bpf/syscall.c:4621
__do_sys_bpf kernel/bpf/syscall.c:4722 [inline]
__se_sys_bpf kernel/bpf/syscall.c:4720 [inline]
__x64_sys_bpf+0x75/0xb0 kernel/bpf/syscall.c:4720
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f5842b10ae9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f5840086188 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007f5842c23f60 RCX: 00007f5842b10ae9
RDX: 0000000000000010 RSI: 0000000020000480 RDI: 0000000000000006
RBP: 00007f5842b6af6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd69a0f8cf R14: 00007f5840086300 R15: 0000000000022000
----------------
Code disassembly (best guess):
0: 00 48 89 add %cl,-0x77(%rax)
3: f2 be f5 00 00 00 repnz mov $0xf5,%esi
9: e9 c3 32 3a 02 jmpq 0x23a32d1
e: 0f 1f 00 nopl (%rax)
11: 48 89 f2 mov %rsi,%rdx
14: be f8 00 00 00 mov $0xf8,%esi
19: e9 b3 32 3a 02 jmpq 0x23a32d1
1e: 0f 1f 00 nopl (%rax)
21: 48 85 f6 test %rsi,%rsi
24: 0f 84 70 01 00 00 je 0x19a
* 2a: 49 89 f9 mov %rdi,%r9 <-- trapping instruction
2d: 41 54 push %r12
2f: 44 0f b6 c2 movzbl %dl,%r8d
33: 49 01 f1 add %rsi,%r9
36: 55 push %rbp
37: 53 push %rbx
38: 0f 82 18 01 00 00 jb 0x156
3e: 48 rex.W
3f: b8 .byte 0xb8