loop6: detected capacity change from 0 to 16383 watchdog: BUG: soft lockup - CPU#1 stuck for 26s! [syz-executor.4:6707] Modules linked in: irq event stamp: 4719855 hardirqs last enabled at (4719854): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (4719855): [] sysvec_apic_timer_interrupt+0xf/0xc0 softirqs last enabled at (4700502): [] __irq_exit_rcu+0x11b/0x180 softirqs last disabled at (4700505): [] __irq_exit_rcu+0x11b/0x180 CPU: 1 PID: 6707 Comm: syz-executor.4 Not tainted 6.1.0-rc6-next-20221122 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:preempt_count_add+0xc/0x150 Code: 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 48 c7 c0 40 e7 9b 87 55 <48> ba 00 00 00 00 00 fc ff df 48 89 c1 53 83 e0 07 89 fb 48 c1 e9 RSP: 0018:ffff88806cf09660 EFLAGS: 00000246 RAX: ffffffff879be740 RBX: 0000000000000002 RCX: 0000000000000000 RDX: 1ffff1100d9e12e7 RSI: ffffffff8180662d RDI: 0000000000000001 RBP: ffff88806cf09748 R08: ffffffff860f4dd6 R09: ffffffff860f4dda R10: ffffed100d9e12eb R11: ffff88806cf09730 R12: ffff88806cf097b8 R13: 0000000000000000 R14: ffff88806cf096f0 R15: 0000000000000170 FS: 00007f44594fb700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000561ebdd8b3f8 CR3: 0000000038566000 CR4: 0000000000350ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: unwind_next_frame+0xb0/0x2130 arch_stack_walk+0x87/0xf0 stack_trace_save+0x90/0xd0 kasan_save_stack+0x22/0x50 kasan_set_track+0x25/0x30 __kasan_slab_alloc+0x5c/0x70 kmem_cache_alloc+0x1e0/0x410 __create_object+0x3d/0xc10 kmem_cache_alloc_node+0x282/0x420 __alloc_skb+0x21a/0x310 __netdev_alloc_skb+0x76/0x3e0 __ieee80211_beacon_get+0x3de/0x1380 ieee80211_beacon_get_tim+0x99/0x4f0 mac80211_hwsim_beacon_tx+0x1d2/0xab0 __iterate_interfaces+0x2d3/0x560 ieee80211_iterate_active_interfaces_atomic+0x74/0x180 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x54b/0xba0 hrtimer_run_softirq+0x176/0x350 __do_softirq+0x1c7/0x8f9 __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:__writeback_single_inode+0x747/0xf50 Code: 84 ed 0f 84 d0 f9 ff ff e8 26 7b b9 ff 0f 1f 44 00 00 e9 c1 f9 ff ff e8 17 7b b9 ff 65 ff 05 78 05 74 7e 48 8b 05 c9 a4 3f 04 a4 73 a3 ff 31 ff 89 c3 89 c6 e8 29 77 b9 ff 85 db 0f 84 23 01 RSP: 0018:ffff88803779f580 EFLAGS: 00000202 RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffc900021d4000 RDX: 0000000000040000 RSI: ffffffff818f8389 RDI: 0000000000000001 RBP: ffff88801e2b2058 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: ffff88803779f638 R13: 0000000000000000 R14: ffff88803779f65c R15: 0000000000000001 writeback_single_inode+0x2b1/0x570 sync_inode_metadata+0xa5/0xe0 __generic_file_fsync+0x167/0x200 fat_file_fsync+0x77/0x200 vfs_fsync_range+0x141/0x230 generic_file_write_iter+0x25e/0x350 do_iter_readv_writev+0x211/0x3c0 do_iter_write+0x18b/0x700 vfs_iter_write+0x74/0xb0 iter_file_splice_write+0x73e/0xcb0 direct_splice_actor+0x113/0x180 splice_direct_to_actor+0x33a/0x8c0 do_splice_direct+0x1bc/0x290 do_sendfile+0xb1d/0x1280 __x64_sys_sendfile64+0x248/0x2a0 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f445bf85b19 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:00007f44594fb188 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007f445c098f60 RCX: 00007f445bf85b19 RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000004 RBP: 00007f445bfdff6d R08: 0000000000000000 R09: 0000000000000000 R10: 00000000fffffdef R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff18de8bdf R14: 00007f44594fb300 R15: 0000000000022000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 6700 Comm: syz-executor.0 Not tainted 6.1.0-rc6-next-20221122 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:lapic_next_deadline+0x25/0x50 Code: 90 90 90 90 90 f3 0f 1e fa 0f ae f0 0f ae e8 0f 31 48 c1 e2 20 b9 e0 06 00 00 48 09 c2 48 8d 04 fa 48 89 c2 48 c1 ea 20 0f 30 <66> 90 31 c0 e9 46 d3 30 03 48 89 c6 31 d2 bf e0 06 00 00 e8 53 ee RSP: 0018:ffff88806ce09530 EFLAGS: 00000017 RAX: 000002508b539274 RBX: 0000000000000000 RCX: 00000000000006e0 RDX: 0000000000000250 RSI: ffff88806ce28100 RDI: 00000000000001c6 RBP: ffff88806ce28100 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000514 R11: 0000000000000001 R12: 00000000000001c6 R13: 0000000000000000 R14: 0000000000000000 R15: ffff88806ce2b840 FS: 0000000000000000(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000561ebddc42c8 CR3: 000000001a4e0000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: clockevents_program_event+0x248/0x360 tick_program_event+0xb0/0x150 hrtimer_interrupt+0x36a/0x770 __sysvec_apic_timer_interrupt+0x148/0x500 sysvec_apic_timer_interrupt+0x3f/0xc0 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:unwind_next_frame+0x6bd/0x2130 Code: b6 04 02 4c 89 ca 83 e2 07 38 d0 7f 08 84 c0 0f 85 03 1a 00 00 41 0f b6 40 04 83 e0 0f 3c 09 0f 84 6d 0e 00 00 41 0f b6 40 05 <83> e0 03 3c 01 0f 84 79 07 00 00 3c 02 0f 84 db 06 00 00 84 c0 0f RSP: 0018:ffff88806ce09718 EFLAGS: 00000282 RAX: 0000000000000000 RBX: 0000000000000002 RCX: ffff88806ce09dd8 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001 RBP: ffff88806ce097f0 R08: ffffffff8642de00 R09: ffffffff8642de04 R10: ffffed100d9c1300 R11: 0000000000038001 R12: ffff88806ce097d9 R13: ffff88806ce097f8 R14: ffff88806ce09798 R15: ffffffff8642de05 arch_stack_walk+0x87/0xf0 stack_trace_save+0x90/0xd0 kasan_save_stack+0x22/0x50 kasan_set_track+0x25/0x30 __kasan_slab_alloc+0x5c/0x70 kmem_cache_alloc_node+0x1f4/0x420 __alloc_skb+0x21a/0x310 __netdev_alloc_skb+0x76/0x3e0 __ieee80211_beacon_get+0x3de/0x1380 ieee80211_beacon_get_tim+0x99/0x4f0 mac80211_hwsim_beacon_tx+0x1d2/0xab0 __iterate_interfaces+0x2d3/0x560 ieee80211_iterate_active_interfaces_atomic+0x74/0x180 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x54b/0xba0 hrtimer_run_softirq+0x176/0x350 __do_softirq+0x1c7/0x8f9 __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 a6 53 eb fc 48 89 ef e8 6e cb eb fc 80 e7 02 74 06 e8 a4 5e 0f fd fb bf 01 00 00 00 19 27 e1 fc 65 8b 05 ba d1 c2 7b 85 c0 74 07 5b 5d e9 2b 29 00 RSP: 0018:ffff888035e47798 EFLAGS: 00000202 RAX: 00000000004d046b RBX: 0000000000000246 RCX: ffffffff812b6ccf RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001 RBP: ffffffff856d28c0 R08: 0000000000000001 R09: ffffffff8763186f R10: fffffbfff0ec630d R11: 0000000000000001 R12: ffff8880211ad440 R13: ffff8880211ad128 R14: ffff88800954c558 R15: ffff88800844fa00 find_and_remove_object+0x123/0x170 kmemleak_free+0x25/0x40 kmem_cache_free+0xc1/0x610 ___pte_free_tlb+0x1d/0x110 free_pgd_range+0x7be/0x1330 free_pgtables+0x2d6/0x420 exit_mmap+0x1b8/0x680 mmput+0xd5/0x390 do_exit+0x99b/0x2720 do_group_exit+0xd4/0x2a0 get_signal+0x21a5/0x22e0 arch_do_signal_or_restart+0x79/0x5a0 exit_to_user_mode_prepare+0x131/0x1a0 syscall_exit_to_user_mode+0x1d/0x50 do_syscall_64+0x4c/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7fbcf854fb19 Code: Unable to access opcode bytes at 0x7fbcf854faef. RSP: 002b:00007fbcf5ac5188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: 0000000000000000 RBX: 00007fbcf8662f60 RCX: 00007fbcf854fb19 RDX: 0000000020000000 RSI: 0000000000008914 RDI: 0000000000000004 RBP: 00007fbcf85a9f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd3fbbc74f R14: 00007fbcf5ac5300 R15: 0000000000022000 ---------------- Code disassembly (best guess): 0: 66 66 2e 0f 1f 84 00 data16 nopw %cs:0x0(%rax,%rax,1) 7: 00 00 00 00 b: 0f 1f 00 nopl (%rax) e: 90 nop f: 90 nop 10: 90 nop 11: 90 nop 12: 90 nop 13: 90 nop 14: 90 nop 15: 90 nop 16: 90 nop 17: 90 nop 18: 90 nop 19: 90 nop 1a: 90 nop 1b: 90 nop 1c: 90 nop 1d: 90 nop 1e: f3 0f 1e fa endbr64 22: 48 c7 c0 40 e7 9b 87 mov $0xffffffff879be740,%rax 29: 55 push %rbp * 2a: 48 ba 00 00 00 00 00 movabs $0xdffffc0000000000,%rdx <-- trapping instruction 31: fc ff df 34: 48 89 c1 mov %rax,%rcx 37: 53 push %rbx 38: 83 e0 07 and $0x7,%eax 3b: 89 fb mov %edi,%ebx 3d: 48 rex.W 3e: c1 .byte 0xc1 3f: e9 .byte 0xe9