rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 1-.... } 2682 jiffies s: 60021 root: 0x2/.
rcu: blocking rcu_node structures (internal RCU debug):
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 17080 Comm: syz.3.4461 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:check_region_inline mm/kasan/generic.c:-1 [inline]
RIP: 0010:kasan_check_range+0xc/0x290 mm/kasan/generic.c:189
Code: c0 c3 0f 0b b8 ea ff ff ff c3 0f 0b b8 ea ff ff ff c3 00 00 cc cc 00 00 cc cc 00 00 cc cc b0 01 48 85 f6 0f 84 ac 01 00 00 55 <41> 57 41 56 41 54 53 49 89 f8 49 01 f0 0f 82 0e 02 00 00 49 89 f8
RSP: 0000:ffffc900001e01b0 EFLAGS: 00000002
RAX: 0000000000000101 RBX: 1ffff9200003c040 RCX: ffffffff816cf49a
RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffff88802a2abc00
RBP: ffffc900001e02c0 R08: dffffc0000000000 R09: 1ffffffff2162048
R10: dffffc0000000000 R11: fffffbfff2162049 R12: 0000000000000046
R13: 0000000000000000 R14: ffff8880b8f3bb00 R15: ffff88802a2abc00
FS:  00007f548a2696c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f548a226ff8 CR3: 0000000029070000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 instrument_atomic_write include/linux/instrumented.h:87 [inline]
 set_bit include/asm-generic/bitops/instrumented-atomic.h:28 [inline]
 set_ti_thread_flag include/linux/thread_info.h:89 [inline]
 set_tsk_thread_flag include/linux/sched.h:2026 [inline]
 set_tsk_need_resched include/linux/sched.h:2057 [inline]
 rcu_read_unlock_special+0x26a/0x510 kernel/rcu/tree_plugin.h:664
 __rcu_read_unlock+0x78/0xd0 kernel/rcu/tree_plugin.h:426
 rcu_read_unlock include/linux/rcupdate.h:823 [inline]
 trace_call_bpf+0x5bb/0x6b0 kernel/trace/bpf_trace.c:137
 perf_trace_run_bpf_submit+0x79/0x1c0 kernel/events/core.c:10027
 perf_trace_preemptirq_template+0x268/0x320 include/trace/events/preemptirq.h:14
 trace_irq_disable include/trace/events/preemptirq.h:36 [inline]
 trace_hardirqs_off_finish+0x13f/0x180 kernel/trace/trace_preemptirq.c:67
 irqentry_enter+0x33/0x50 kernel/entry/common.c:382
 sysvec_irq_work+0xa/0xc0 arch/x86/kernel/irq_work.c:17
 asm_sysvec_irq_work+0x16/0x20 arch/x86/include/asm/idtentry.h:728
RIP: 0010:rcu_read_unlock_special+0x7f/0x510 kernel/rcu/tree_plugin.h:685
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 a2 7c 95 7e 41 f7 c6 00 00 f0 00 74 40 <48> c7 44 24 40 0e 36 e0 45 4a c7 04 2b 00 00 00 00 42 c7 44 2b 08
RSP: 0000:ffffc900001e0640 EFLAGS: 00000206
RAX: f69d7f906ea4d200 RBX: 1ffff9200003c0d0 RCX: f69d7f906ea4d200
RDX: dffffc0000000000 RSI: ffffffff8a8c17a0 RDI: ffffffff8adf5de0
RBP: ffffc900001e0728 R08: ffffffff90b102ff R09: 1ffffffff216205f
R10: dffffc0000000000 R11: fffffbfff2162060 R12: 0000000000000246
R13: dffffc0000000000 R14: ffff8880b8f3bb00 R15: 0000000000000002
 __rcu_read_unlock+0x78/0xd0 kernel/rcu/tree_plugin.h:426
 rcu_read_unlock include/linux/rcupdate.h:823 [inline]
 __ip_queue_xmit+0x117b/0x1c10 net/ipv4/ip_output.c:539
 __tcp_transmit_skb+0x1cc4/0x31e0 net/ipv4/tcp_output.c:1407
 tcp_transmit_skb net/ipv4/tcp_output.c:1425 [inline]
 __tcp_retransmit_skb+0x976/0x1360 net/ipv4/tcp_output.c:3317
 tcp_retransmit_skb+0x2e/0x350 net/ipv4/tcp_output.c:3340
 tcp_retransmit_timer+0x154a/0x27c0 net/ipv4/tcp_timer.c:574
 tcp_write_timer+0x126/0x280 net/ipv4/tcp_timer.c:676
 call_timer_fn+0x1ac/0x670 kernel/time/timer.c:1701
 expire_timers kernel/time/timer.c:1752 [inline]
 __run_timers+0x56c/0x810 kernel/time/timer.c:2023
 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:2036
 handle_softirqs+0x291/0x910 kernel/softirq.c:596
 __do_softirq kernel/softirq.c:630 [inline]
 invoke_softirq kernel/softirq.c:470 [inline]
 __irq_exit_rcu+0x13b/0x230 kernel/softirq.c:679
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:691
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline]
 sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1118
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:caif_device_notify+0x1/0x10b0 net/caif/caif_dev.c:365
Code: 8c 7a ff ff ff 4c 89 f7 e8 0c 49 f3 f7 e9 6d ff ff ff e8 52 1c a2 f7 e9 57 fd ff ff 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 55 <41> 57 41 56 41 55 41 54 53 48 83 ec 58 48 89 d3 48 89 f5 65 48 8b
RSP: 0000:ffffc9000c38ec40 EFLAGS: 00000246
RAX: ffffffff81572113 RBX: 1ffffffff1c0474c RCX: 0000000000000002
RDX: ffffc9000c38ecc0 RSI: 0000000000000004 RDI: ffffffff8e023a60
RBP: 0000000000000000 R08: ffff88802a2abc00 R09: 0000000000000005
R10: 0000000000000006 R11: 0000000000000002 R12: ffffffff8e023a60
R13: dffffc0000000000 R14: dffffc0000000000 R15: 00000000ffffffb4
 notifier_call_chain kernel/notifier.c:87 [inline]
 raw_notifier_call_chain+0xcb/0x160 kernel/notifier.c:455
 netdev_state_change+0xe0/0x170 net/core/dev.c:1403
 do_setlink+0x508/0x29c0 net/core/rtnetlink.c:3079
 rtnl_setlink+0x37e/0x510 net/core/rtnetlink.c:3136
 rtnetlink_rcv_msg+0x863/0xfb0 net/core/rtnetlink.c:6166
 netlink_rcv_skb+0x1ef/0x440 net/netlink/af_netlink.c:2516
 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline]
 netlink_unicast+0x7ad/0x920 net/netlink/af_netlink.c:1344
 netlink_sendmsg+0x8ad/0xbd0 net/netlink/af_netlink.c:1877
 sock_sendmsg_nosec net/socket.c:718 [inline]
 __sock_sendmsg net/socket.c:730 [inline]
 ____sys_sendmsg+0x5ed/0x9a0 net/socket.c:2519
 ___sys_sendmsg+0x2a2/0x360 net/socket.c:2573
 __sys_sendmsg net/socket.c:2602 [inline]
 __do_sys_sendmsg net/socket.c:2611 [inline]
 __se_sys_sendmsg+0x1c3/0x2b0 net/socket.c:2609
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f548939e0d9
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:00007f548a269028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f5489625fa0 RCX: 00007f548939e0d9
RDX: 000000000000c004 RSI: 0000200000000140 RDI: 000000000000000b
RBP: 00007f5489435024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f5489626038 R14: 00007f5489625fa0 R15: 00007ffc0dcad7e8
 </TASK>