watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor.5:4612] Modules linked in: irq event stamp: 109990 hardirqs last enabled at (109989): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (109990): [] sysvec_apic_timer_interrupt+0xf/0x90 softirqs last enabled at (109984): [] irq_exit_rcu+0x93/0xc0 softirqs last disabled at (109979): [] irq_exit_rcu+0x93/0xc0 CPU: 0 PID: 4612 Comm: syz-executor.5 Not tainted 6.5.0-rc4-next-20230731 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:queued_spin_lock_slowpath+0x128/0xb20 Code: 00 00 00 65 48 2b 04 25 28 00 00 00 0f 85 5c 09 00 00 48 81 c4 88 00 00 00 5b 5d 41 5c 41 5d 41 5e 41 5f e9 5a 21 00 00 f3 90 71 ff ff ff 44 8b 74 24 48 41 81 fe 00 01 00 00 0f 84 e4 00 00 RSP: 0018:ffff8880447afc78 EFLAGS: 00000202 RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff845c4fab RDX: ffffed1002de4019 RSI: 0000000000000004 RDI: ffff888016f200c0 RBP: ffff888016f200c0 R08: 0000000000000000 R09: ffffed1002de4018 R10: ffff888016f200c3 R11: 0000000000000001 R12: 0000000000000003 R13: ffffed1002de4018 R14: 0000000000000001 R15: 1ffff110088f5f90 FS: 00007fec5b442700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc543cd7547 CR3: 0000000019640000 CR4: 0000000000350ef0 Call Trace: do_raw_spin_lock+0x1e0/0x270 alloc_fd+0x64/0x760 __sys_socketpair+0xb1/0x580 __x64_sys_socketpair+0x97/0x100 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x6e/0xd8 RIP: 0033:0x7fec5deedb19 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:00007fec5b442188 EFLAGS: 00000246 ORIG_RAX: 0000000000000035 RAX: ffffffffffffffda RBX: 00007fec5e001020 RCX: 00007fec5deedb19 RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000001 RBP: 00007fec5df47f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000020003ec0 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffcb7091bbf R14: 00007fec5b442300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 4588 Comm: syz-executor.5 Not tainted 6.5.0-rc4-next-20230731 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:ktime_get+0x1c4/0x1f0 Code: 02 00 00 00 31 f6 48 c7 c7 88 d0 62 85 e8 d4 dd f0 ff 48 8b 74 24 48 48 c7 c7 88 d0 62 85 e8 b3 d5 f0 ff e8 de e6 16 00 fb 5a c9 fe ff ff e8 b2 a8 0f 00 0f 0b e9 59 fe ff ff 48 89 7c 24 08 RSP: 0018:ffff88806cf09dd0 EFLAGS: 00000202 RAX: 00000000004c9476 RBX: 0000000000000200 RCX: ffffffff812d529f RDX: ffffffff831b8805 RSI: 0000000000000000 RDI: ffffffff813d1f72 RBP: 00000000005b99b3 R08: 0000000000000001 R09: fffffbfff0ee7763 R10: ffffffff8773bb1f R11: 0000000000000001 R12: 0000000000000000 R13: 000000000007f232 R14: 001aa70314ad98cc R15: dffffc0000000000 FS: 00007fec5b463700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2c72c000 CR3: 0000000019640000 CR4: 0000000000350ee0 Call Trace: mac80211_hwsim_beacon+0x1a5/0x200 __hrtimer_run_queues+0x59d/0xb60 hrtimer_run_softirq+0x14c/0x310 __do_softirq+0x1b7/0x7d4 irq_exit_rcu+0x93/0xc0 sysvec_irq_work+0x6e/0x90 asm_sysvec_irq_work+0x1a/0x20 RIP: 0010:alloc_fd+0xf5/0x760 Code: 48 b9 00 00 00 00 00 fc ff df 41 0f 43 ac 24 00 01 00 00 48 c1 e8 03 0f b6 04 08 84 c0 74 08 3c 03 0f 8e 5f 05 00 00 44 8b 2b <89> ef 44 89 ee e8 d1 d1 bc ff 44 39 ed 0f 82 2e 01 00 00 e8 e3 d6 RSP: 0018:ffff8880441a7d58 EFLAGS: 00000246 RAX: 0000000000000000 RBX: ffff888040632080 RCX: dffffc0000000000 RDX: 0000000000040000 RSI: ffffffff818ff0e9 RDI: 0000000000000005 RBP: 0000000000000008 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: ffff888016f20000 R13: 0000000000000100 R14: 0000000000000000 R15: 0000000000000100 do_sys_openat2+0x12b/0x1d0 __x64_sys_openat+0x143/0x200 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x6e/0xd8 RIP: 0033:0x7fec5deedb19 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:00007fec5b463188 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007fec5e000f60 RCX: 00007fec5deedb19 RDX: 0000000000101042 RSI: 0000000020000100 RDI: ffffffffffffff9c RBP: 00007fec5df47f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffcb7091bbf R14: 00007fec5b463300 R15: 0000000000022000 ---------------- Code disassembly (best guess): 0: 00 00 add %al,(%rax) 2: 00 65 48 add %ah,0x48(%rbp) 5: 2b 04 25 28 00 00 00 sub 0x28,%eax c: 0f 85 5c 09 00 00 jne 0x96e 12: 48 81 c4 88 00 00 00 add $0x88,%rsp 19: 5b pop %rbx 1a: 5d pop %rbp 1b: 41 5c pop %r12 1d: 41 5d pop %r13 1f: 41 5e pop %r14 21: 41 5f pop %r15 23: e9 5a 21 00 00 jmpq 0x2182 28: f3 90 pause * 2a: e9 71 ff ff ff jmpq 0xffffffa0 <-- trapping instruction 2f: 44 8b 74 24 48 mov 0x48(%rsp),%r14d 34: 41 81 fe 00 01 00 00 cmp $0x100,%r14d 3b: 0f .byte 0xf 3c: 84 e4 test %ah,%ah