watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor.6:12945] Modules linked in: irq event stamp: 6419471 hardirqs last enabled at (6419470): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (6419471): [] sysvec_apic_timer_interrupt+0xf/0xc0 softirqs last enabled at (6393022): [] __irq_exit_rcu+0x11b/0x180 softirqs last disabled at (6393025): [] __irq_exit_rcu+0x11b/0x180 CPU: 0 PID: 12945 Comm: syz-executor.6 Not tainted 6.2.0-rc3-next-20230109 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:mac80211_hwsim_tx_frame_no_nl.isra.0+0x7e9/0x1360 Code: bb e8 0b 13 4a fe 48 8d bb 08 3d 00 00 48 89 f8 48 c1 e8 03 0f b6 04 28 84 c0 74 06 0f 8e ea 08 00 00 44 0f b6 bb 08 3d 00 00 <31> ff 44 89 fe e8 ad 0e 4a fe 45 84 ff 74 83 e8 d3 12 4a fe 48 8d RSP: 0018:ffff88806ce09b80 EFLAGS: 00000246 RAX: 0000000000000000 RBX: ffff88803a86b3a0 RCX: 0000000000000100 RDX: ffff888018261ac0 RSI: ffffffff82ff5f65 RDI: ffff88803a86f0a8 RBP: dffffc0000000000 R08: 0000000000000004 R09: 0000000000000001 R10: 0000000000000007 R11: 0000000000000001 R12: ffff888035bb2b40 R13: ffff88803ef6b3a0 R14: ffff88803ef6b638 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000555555ed7c98 CR3: 0000000015a24000 CR4: 0000000000350ef0 Call Trace: mac80211_hwsim_tx_frame+0x1ee/0x2a0 mac80211_hwsim_beacon_tx+0x566/0xb10 __iterate_interfaces+0x2d3/0x580 ieee80211_iterate_active_interfaces_atomic+0x73/0x1c0 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x54b/0xcb0 hrtimer_run_softirq+0x176/0x350 __do_softirq+0x1c7/0x913 __irq_exit_rcu+0x11b/0x180 irq_exit_rcu+0x9/0x30 sysvec_apic_timer_interrupt+0x92/0xc0 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:_raw_spin_unlock_irqrestore+0x32/0x60 Code: 48 83 c7 18 53 48 89 f3 48 8b 74 24 10 e8 76 c1 e7 fc 48 89 ef e8 be 38 e8 fc 80 e7 02 74 06 e8 74 33 0c fd fb bf 01 00 00 00 29 86 dd fc 65 8b 05 aa 33 bf 7b 85 c0 74 07 5b 5d e9 5b 29 00 RSP: 0018:ffff888009c177b8 EFLAGS: 00000202 RAX: 0000000000591d3d RBX: 0000000000000283 RCX: ffffffff812b799f RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001 RBP: ffffffff856d1f00 R08: 0000000000000001 R09: ffffffff8764e92f R10: fffffbfff0ec9d25 R11: 0000000000000001 R12: 0000000000000283 R13: ffff88804379c638 R14: 00000000210fbfff R15: 00000000210fc000 kmemleak_free+0x18a/0x200 kmem_cache_free+0xb9/0x510 ___pmd_free_tlb+0xa8/0x200 free_pgd_range+0xa09/0x1330 free_pgtables+0x2d6/0x420 exit_mmap+0x1b8/0x6a0 mmput+0xd5/0x390 do_exit+0x99b/0x2780 do_group_exit+0xd4/0x2a0 get_signal+0x2255/0x2390 arch_do_signal_or_restart+0x79/0x5a0 exit_to_user_mode_prepare+0xf5/0x190 syscall_exit_to_user_mode+0x1d/0x50 do_syscall_64+0x4c/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7fd410675b19 Code: Unable to access opcode bytes at 0x7fd410675aef. RSP: 002b:00007fd40dbca188 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: 0000000000000006 RBX: 00007fd410789020 RCX: 00007fd410675b19 RDX: 0000000000105802 RSI: 00000000200001c0 RDI: ffffffffffffff9c RBP: 00007fd4106cff6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffce81f92df R14: 00007fd40dbca300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 12955 Comm: syz-executor.4 Not tainted 6.2.0-rc3-next-20230109 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:__sanitizer_cov_trace_pc+0x31/0x70 Code: 0d 17 ba 7e 89 c1 48 8b 34 24 81 e1 00 01 00 00 65 48 8b 14 25 80 89 03 00 a9 00 01 ff 00 74 0e 85 c9 74 35 8b 82 14 14 00 00 <85> c0 74 2b 8b 82 f0 13 00 00 83 f8 02 75 20 48 8b 8a f8 13 00 00 RSP: 0018:ffff88806cf09788 EFLAGS: 00000006 RAX: 0000000000000000 RBX: ffff8880445f4200 RCX: 0000000000000100 RDX: ffff88801ec71ac0 RSI: ffffffff81396b91 RDI: ffff8880445f4200 RBP: ffff8880445f4200 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: ffff88806cf2b988 R13: ffff88806cf2b8c0 R14: ffff88806cf2b940 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c0063effc0 CR3: 0000000015a24000 CR4: 0000000000350ee0 Call Trace: trace_hrtimer_cancel+0x11/0x240 __hrtimer_run_queues+0x343/0xcb0 hrtimer_interrupt+0x319/0x770 __sysvec_apic_timer_interrupt+0x148/0x510 sysvec_apic_timer_interrupt+0x3f/0xc0 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:queued_spin_lock_slowpath+0x128/0xc90 Code: 00 00 00 65 48 2b 04 25 28 00 00 00 0f 85 e6 0a 00 00 48 81 c4 88 00 00 00 5b 5d 41 5c 41 5d 41 5e 41 5f e9 ee 1f 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:ffff88806cf09a28 EFLAGS: 00000202 RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff84445edb RDX: fffffbfff0b48ac9 RSI: 0000000000000004 RDI: ffffffff85a45640 RBP: ffffffff85a45640 R08: 0000000000000000 R09: ffffffff85a45643 R10: fffffbfff0b48ac8 R11: 0000000000000001 R12: 0000000000000003 R13: fffffbfff0b48ac8 R14: 0000000000000001 R15: 1ffff1100d9e1346 do_raw_spin_lock+0x1e0/0x270 mac80211_hwsim_tx_frame_no_nl.isra.0+0x6f1/0x1360 mac80211_hwsim_tx_frame+0x1ee/0x2a0 mac80211_hwsim_beacon_tx+0x566/0xb10 __iterate_interfaces+0x2d3/0x580 ieee80211_iterate_active_interfaces_atomic+0x73/0x1c0 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x54b/0xcb0 hrtimer_run_softirq+0x176/0x350 __do_softirq+0x1c7/0x913 __irq_exit_rcu+0x11b/0x180 irq_exit_rcu+0x9/0x30 sysvec_apic_timer_interrupt+0x92/0xc0 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:__stack_depot_save+0x153/0x4e0 Code: 05 89 da 23 15 1a 42 b9 05 4c 8d 14 d0 4d 8b 0a 4d 85 c9 75 11 e9 a5 00 00 00 4d 8b 09 4d 85 c9 0f 84 99 00 00 00 41 39 59 08 <75> ee 41 3b 49 0c 75 e8 31 c0 49 8b 7c c1 18 49 39 3c c7 75 db 48 RSP: 0018:ffff888008d0f5e8 EFLAGS: 00000246 RAX: ffff88806c400000 RBX: 0000000040f93c6f RCX: 0000000000000011 RDX: 0000000000093c6f RSI: ffff888008d0f6dc RDI: 0000000000000001 RBP: 0000000000000000 R08: 0000000000000011 R09: ffff888019722aa0 R10: ffff88806c89e378 R11: 0000000000000001 R12: 0000000000000000 R13: 0000000000000001 R14: 0000000000000800 R15: ffff888008d0f658 kasan_save_stack+0x35/0x50 kasan_set_track+0x25/0x30 kasan_save_free_info+0x2e/0x50 __kasan_slab_free+0x10a/0x190 kmem_cache_free+0xff/0x510 unlink_anon_vmas+0x3b7/0x720 free_pgtables+0x251/0x420 exit_mmap+0x1b8/0x6a0 mmput+0xd5/0x390 do_exit+0x99b/0x2780 do_group_exit+0xd4/0x2a0 get_signal+0x2255/0x2390 arch_do_signal_or_restart+0x79/0x5a0 exit_to_user_mode_prepare+0xf5/0x190 syscall_exit_to_user_mode+0x1d/0x50 do_syscall_64+0x4c/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7fe9c618cb19 Code: Unable to access opcode bytes at 0x7fe9c618caef. RSP: 002b:00007fe9c36c0188 EFLAGS: 00000246 ORIG_RAX: 0000000000000122 RAX: 0000000000000007 RBX: 00007fe9c62a00e0 RCX: 00007fe9c618cb19 RDX: 0000000000000000 RSI: 0000000000080000 RDI: 000000007fffffff RBP: 00007fe9c61e6f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffda0dc103f R14: 00007fe9c36c0300 R15: 0000000000022000 hpet: Lost 7 RTC interrupts hpet: Lost 7 RTC interrupts ---------------- Code disassembly (best guess): 0: bb e8 0b 13 4a mov $0x4a130be8,%ebx 5: fe 48 8d decb -0x73(%rax) 8: bb 08 3d 00 00 mov $0x3d08,%ebx d: 48 89 f8 mov %rdi,%rax 10: 48 c1 e8 03 shr $0x3,%rax 14: 0f b6 04 28 movzbl (%rax,%rbp,1),%eax 18: 84 c0 test %al,%al 1a: 74 06 je 0x22 1c: 0f 8e ea 08 00 00 jle 0x90c 22: 44 0f b6 bb 08 3d 00 movzbl 0x3d08(%rbx),%r15d 29: 00 * 2a: 31 ff xor %edi,%edi <-- trapping instruction 2c: 44 89 fe mov %r15d,%esi 2f: e8 ad 0e 4a fe callq 0xfe4a0ee1 34: 45 84 ff test %r15b,%r15b 37: 74 83 je 0xffffffbc 39: e8 d3 12 4a fe callq 0xfe4a1311 3e: 48 rex.W 3f: 8d .byte 0x8d