mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium Bluetooth: hci2: command 0x0406 tx timeout watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [syz-executor.0:14330] Modules linked in: irq event stamp: 3664683 hardirqs last enabled at (3664682): [] trace_hardirqs_on_thunk+0x1a/0x1c hardirqs last disabled at (3664683): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (3648864): [] __do_softirq+0x678/0x980 kernel/softirq.c:318 softirqs last disabled at (3648867): [] invoke_softirq kernel/softirq.c:372 [inline] softirqs last disabled at (3648867): [] irq_exit+0x215/0x260 kernel/softirq.c:412 CPU: 1 PID: 14330 Comm: syz-executor.0 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 RIP: 0010:preempt_count arch/x86/include/asm/preempt.h:23 [inline] RIP: 0010:check_kcov_mode kernel/kcov.c:67 [inline] RIP: 0010:write_comp_data+0xf/0x70 kernel/kcov.c:122 Code: 8b 11 48 83 c2 01 48 39 d0 76 07 48 89 34 d1 48 89 11 c3 0f 1f 84 00 00 00 00 00 49 89 f1 49 89 fa 65 48 8b 34 25 c0 df 01 00 <65> 8b 05 7a 59 9f 7e a9 00 01 1f 00 75 4f 8b 86 60 13 00 00 83 f8 RSP: 0018:ffff8880ba107940 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000080 RBX: 0000000000000080 RCX: ffffffff879ff615 RDX: 0000000000000000 RSI: ffff88809643c440 RDI: 0000000000000003 RBP: dffffc0000000000 R08: 0000000000000000 R09: 0000000000000008 R10: 0000000000000003 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: ffff8880a3489200 R15: ffff8880ba107dd8 FS: 00007f4a382de700(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fe8fde58fc8 CR3: 00000000646b2000 CR4: 00000000003406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ieee80211_rx_h_data net/mac80211/rx.c:2850 [inline] ieee80211_rx_handlers+0x15f5/0x9730 net/mac80211/rx.c:3685 ieee80211_invoke_rx_handlers net/mac80211/rx.c:3726 [inline] ieee80211_prepare_and_rx_handle+0x23fa/0x6790 net/mac80211/rx.c:4423 __ieee80211_rx_handle_packet net/mac80211/rx.c:4483 [inline] ieee80211_rx_napi+0x108d/0x2470 net/mac80211/rx.c:4672 ieee80211_rx include/net/mac80211.h:4109 [inline] ieee80211_tasklet_handler+0x101/0x160 net/mac80211/main.c:229 tasklet_action_common.constprop.0+0x265/0x360 kernel/softirq.c:522 __do_softirq+0x265/0x980 kernel/softirq.c:292 invoke_softirq kernel/softirq.c:372 [inline] irq_exit+0x215/0x260 kernel/softirq.c:412 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x136/0x550 arch/x86/kernel/apic/apic.c:1098 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894 RIP: 0010:__tlb_remove_page_size+0x0/0x470 mm/memory.c:305 Code: 48 89 df e8 b2 32 0d 00 e9 81 fc ff ff e8 a8 32 0d 00 e9 bd fd ff ff e8 9e 32 0d 00 e9 5e fd ff ff 66 0f 1f 84 00 00 00 00 00 <41> 57 41 56 49 89 f6 41 55 41 54 55 89 d5 53 48 89 fb e8 b9 52 d7 RSP: 0018:ffff8880394ef768 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 RAX: ffff88809643c440 RBX: 0000000000000002 RCX: ffffffff818ba0c8 RDX: 0000000000001000 RSI: ffffea000178fa40 RDI: ffff8880394ef9b0 RBP: ffffea000178fa70 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000005 R11: 0000000000000000 R12: dead000000000100 R13: ffffea000178fa40 R14: dffffc0000000000 R15: 00007f4a38f97000 __tlb_remove_page include/asm-generic/tlb.h:161 [inline] zap_pte_range mm/memory.c:1353 [inline] zap_pmd_range mm/memory.c:1463 [inline] zap_pud_range mm/memory.c:1492 [inline] zap_p4d_range mm/memory.c:1513 [inline] unmap_page_range+0x14e7/0x2c50 mm/memory.c:1534 unmap_single_vma+0x198/0x300 mm/memory.c:1579 unmap_vmas+0xa9/0x180 mm/memory.c:1609 exit_mmap+0x2b9/0x530 mm/mmap.c:3093 __mmput kernel/fork.c:1016 [inline] mmput+0x14e/0x4a0 kernel/fork.c:1037 exit_mm kernel/exit.c:549 [inline] do_exit+0xaec/0x2be0 kernel/exit.c:857 do_group_exit+0x125/0x310 kernel/exit.c:967 get_signal+0x3f2/0x1f70 kernel/signal.c:2589 do_signal+0x8f/0x1670 arch/x86/kernel/signal.c:799 exit_to_usermode_loop+0x204/0x2a0 arch/x86/entry/common.c:163 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline] syscall_return_slowpath arch/x86/entry/common.c:271 [inline] do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f4a39969209 Code: Bad RIP value. RSP: 002b:00007f4a382de168 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: 0000000000000070 RBX: 00007f4a39a7bf60 RCX: 00007f4a39969209 RDX: 0400000000000070 RSI: 0000000020007fc0 RDI: 0000000000000005 RBP: 00007f4a399c3161 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe2c01a10f R14: 00007f4a382de300 R15: 0000000000022000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 190 Comm: kworker/u4:3 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 Workqueue: bat_events batadv_nc_worker RIP: 0010:atomic_read include/asm-generic/atomic-instrumented.h:21 [inline] RIP: 0010:queued_spin_is_locked include/asm-generic/qspinlock.h:35 [inline] RIP: 0010:debug_spin_unlock kernel/locking/spinlock_debug.c:98 [inline] RIP: 0010:do_raw_spin_unlock+0x4b/0x230 kernel/locking/spinlock_debug.c:134 Code: 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 bc 01 00 00 81 7d 04 ad 4e ad de 0f 85 74 01 00 00 be 04 00 00 00 48 89 ef a0 6d 4c 00 48 89 ea 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 RSP: 0018:ffff8880b4f1fc10 EFLAGS: 00000246 RAX: 0000000000000007 RBX: ffff888057c16768 RCX: 1ffff110169e153b RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff888057c16768 RBP: ffff888057c16768 R08: 0000000000000001 R09: 0000000000000002 R10: 0000000000000000 R11: 0000000000000000 R12: dffffc0000000000 R13: ffffffff87d8da80 R14: 000000000000003b R15: ffff888056a5e400 FS: 0000000000000000(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c0045a1000 CR3: 00000000a93f7000 CR4: 00000000003406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __raw_spin_unlock_bh include/linux/spinlock_api_smp.h:175 [inline] _raw_spin_unlock_bh+0x1f/0x30 kernel/locking/spinlock.c:200 spin_unlock_bh include/linux/spinlock.h:374 [inline] batadv_nc_purge_paths+0x22d/0x310 net/batman-adv/network-coding.c:482 batadv_nc_worker+0x6fa/0xd50 net/batman-adv/network-coding.c:731 process_one_work+0x864/0x1570 kernel/workqueue.c:2153 worker_thread+0x64c/0x1130 kernel/workqueue.c:2296 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415