device veth0_vlan entered promiscuous mode watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [syz-executor.7:5829] Modules linked in: irq event stamp: 5557113 hardirqs last enabled at (5557112): [] asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635 hardirqs last disabled at (5557113): [] sysvec_apic_timer_interrupt+0xb/0xa0 arch/x86/kernel/apic/apic.c:1106 softirqs last enabled at (5556054): [] asm_call_irq_on_stack+0x12/0x20 softirqs last disabled at (5556057): [] asm_call_irq_on_stack+0x12/0x20 CPU: 0 PID: 5829 Comm: syz-executor.7 Not tainted 5.10.229 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:ieee80211_rx_get_bigtk+0x144/0x4b0 net/mac80211/rx.c:1886 Code: 05 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 4d 03 00 00 48 81 c3 b8 00 00 00 4d 8b 7c dd 08 77 46 28 00 31 ff 89 c3 89 c6 e8 7c bb 82 fd 85 db 0f 85 39 01 RSP: 0018:ffff88806ce098d8 EFLAGS: 00000206 RAX: dffffc0000000000 RBX: 00000000000000be RCX: ffffffff83bdfd07 RDX: 1ffff11008b4e237 RSI: ffffffff83bdfc15 RDI: ffff888045a711b8 RBP: ffff88806ce09d98 R08: 0000000000000001 R09: ffff88800f990d5f R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000007 R13: ffff888045a70bc0 R14: ffff88806ce09db8 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f556d36d998 CR3: 000000000dfe8000 CR4: 0000000000350ef0 Call Trace: ieee80211_rx_h_decrypt net/mac80211/rx.c:2020 [inline] ieee80211_rx_handlers+0x3631/0xa3f0 net/mac80211/rx.c:3866 ieee80211_invoke_rx_handlers net/mac80211/rx.c:3918 [inline] ieee80211_prepare_and_rx_handle+0x17d4/0x5890 net/mac80211/rx.c:4605 __ieee80211_rx_handle_packet net/mac80211/rx.c:4666 [inline] ieee80211_rx_list+0xdd0/0x2370 net/mac80211/rx.c:4846 ieee80211_rx_napi+0xdc/0x3c0 net/mac80211/rx.c:4867 ieee80211_rx include/net/mac80211.h:4502 [inline] ieee80211_tasklet_handler+0xd3/0x130 net/mac80211/main.c:235 tasklet_action_common.constprop.0+0x244/0x2f0 kernel/softirq.c:560 __do_softirq+0x1b8/0x7c9 kernel/softirq.c:298 asm_call_irq_on_stack+0x12/0x20 __run_on_irqstack arch/x86/include/asm/irq_stack.h:26 [inline] run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:77 [inline] do_softirq_own_stack+0x80/0xa0 arch/x86/kernel/irq_64.c:77 invoke_softirq kernel/softirq.c:393 [inline] __irq_exit_rcu kernel/softirq.c:423 [inline] irq_exit_rcu+0x114/0x1b0 kernel/softirq.c:435 sysvec_apic_timer_interrupt+0x43/0xa0 arch/x86/kernel/apic/apic.c:1106 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635 RIP: 0010:compound_head include/linux/page-flags.h:185 [inline] RIP: 0010:PageSwapBacked include/linux/page-flags.h:357 [inline] RIP: 0010:PageSwapCache include/linux/page-flags.h:402 [inline] RIP: 0010:free_swap_cache mm/swap_state.c:326 [inline] RIP: 0010:free_pages_and_swap_cache+0x91/0x290 mm/swap_state.c:354 Code: f7 d8 ff 48 89 d8 48 c1 e8 03 42 80 3c 28 00 0f 85 e9 01 00 00 48 8b 2b 48 8d 45 08 48 89 44 24 10 48 c1 e8 03 42 80 3c 28 00 <0f> 85 bf 01 00 00 48 8b 45 08 31 ff 49 89 ef 48 89 44 24 08 83 e0 RSP: 0018:ffff88801e3176b8 EFLAGS: 00000246 RAX: 1ffffd4000203c89 RBX: ffff888046f463d0 RCX: ffffffff8167c6ac RDX: ffff88804800b480 RSI: ffffffff8167c6ba RDI: 0000000000000004 RBP: ffffea000101e440 R08: 0000000000000000 R09: ffffea000101e407 R10: 00000000000001fe R11: 0000000000000001 R12: 0000000000000078 R13: dffffc0000000000 R14: 00000000000001fe R15: 0000000000000000 tlb_batch_pages_flush mm/mmu_gather.c:49 [inline] tlb_flush_mmu_free mm/mmu_gather.c:240 [inline] tlb_flush_mmu+0xe9/0x6e0 mm/mmu_gather.c:247 zap_pte_range mm/memory.c:1355 [inline] zap_pmd_range mm/memory.c:1404 [inline] zap_pud_range mm/memory.c:1433 [inline] zap_p4d_range mm/memory.c:1454 [inline] unmap_page_range+0x17d9/0x1fe0 mm/memory.c:1475 unmap_single_vma+0x198/0x300 mm/memory.c:1520 unmap_vmas+0x16d/0x300 mm/memory.c:1552 exit_mmap+0x27f/0x4f0 mm/mmap.c:3235 __mmput kernel/fork.c:1101 [inline] mmput+0xca/0x340 kernel/fork.c:1122 exit_mm kernel/exit.c:536 [inline] do_exit+0xa96/0x2600 kernel/exit.c:847 do_group_exit+0x125/0x310 kernel/exit.c:982 get_signal+0x4bc/0x2350 kernel/signal.c:2762 arch_do_signal_or_restart+0x2b7/0x1990 arch/x86/kernel/signal.c:805 handle_signal_work kernel/entry/common.c:145 [inline] exit_to_user_mode_loop kernel/entry/common.c:169 [inline] exit_to_user_mode_prepare+0x10f/0x190 kernel/entry/common.c:199 syscall_exit_to_user_mode+0x38/0x1d0 kernel/entry/common.c:274 entry_SYSCALL_64_after_hwframe+0x67/0xd1 RIP: 0033:0x7f1a5debeb19 Code: Unable to access opcode bytes at RIP 0x7f1a5debeaef. RSP: 002b:00007f1a5b434188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: 0000000000000000 RBX: 00007f1a5dfd1f60 RCX: 00007f1a5debeb19 RDX: 00000000200001c0 RSI: 0000000000008914 RDI: 0000000000000004 RBP: 00007f1a5df18f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd295f8f6f R14: 00007f1a5b434300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 skipped: idling at native_safe_halt arch/x86/include/asm/irqflags.h:60 [inline] NMI backtrace for cpu 1 skipped: idling at arch_safe_halt arch/x86/include/asm/irqflags.h:103 [inline] NMI backtrace for cpu 1 skipped: idling at default_idle+0xe/0x20 arch/x86/kernel/process.c:706 ---------------- Code disassembly (best guess), 1 bytes skipped: 0: 00 00 add %al,(%rax) 2: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 9: fc ff df c: 48 89 fa mov %rdi,%rdx f: 48 c1 ea 03 shr $0x3,%rdx 13: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) 17: 0f 85 4d 03 00 00 jne 0x36a 1d: 48 81 c3 b8 00 00 00 add $0xb8,%rbx 24: 4d 8b 7c dd 08 mov 0x8(%r13,%rbx,8),%r15 * 29: e8 77 46 28 00 callq 0x2846a5 <-- trapping instruction 2e: 31 ff xor %edi,%edi 30: 89 c3 mov %eax,%ebx 32: 89 c6 mov %eax,%esi 34: e8 7c bb 82 fd callq 0xfd82bbb5 39: 85 db test %ebx,%ebx 3b: 0f .byte 0xf 3c: 85 39 test %edi,(%rcx) 3e: 01 .byte 0x1