BUG: soft lockup in mod

Kernel	Title	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
linux-4.19	BUG: soft lockup in mod_timer (2)	syz		error	33	740d	1304d	0/1	upstream: reported syz repro on 2021/04/28 22:26
linux-4.14	BUG: soft lockup in mod_timer				1	1456d	1456d	0/1	auto-closed as invalid on 2021/03/28 13:44

mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium Bluetooth: hci2: command 0x0406 tx timeout wlan0: No active IBSS STAs - trying to scan for other IBSS networks with same SSID (merge) watchdog: BUG: soft lockup - CPU#1 stuck for 123s! [syz-executor.3:20137] Modules linked in: irq event stamp: 21980869 hardirqs last enabled at (21980868): [<ffffffff81004313>] trace_hardirqs_on_thunk+0x1a/0x1c hardirqs last disabled at (21980869): [<ffffffff8100432f>] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (21963712): [<ffffffff8840069a>] __do_softirq+0x69a/0x9a0 kernel/softirq.c:318 softirqs last disabled at (21963715): [<ffffffff813a3bd5>] invoke_softirq kernel/softirq.c:372 [inline] softirqs last disabled at (21963715): [<ffffffff813a3bd5>] irq_exit+0x215/0x260 kernel/softirq.c:412 CPU: 1 PID: 20137 Comm: syz-executor.3 Not tainted 4.19.157-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:789 [inline] RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline] RIP: 0010:_raw_spin_unlock_irqrestore+0xa3/0xe0 kernel/locking/spinlock.c:184 Code: 48 c7 c0 08 80 f1 89 48 ba 00 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 75 2f 48 83 3d 2c d6 db 01 00 74 15 48 89 df 57 9d <0f> 1f 44 00 00 eb b2 e8 5a 99 ea f8 eb c0 0f 0b 0f 0b 48 c7 c7 08 RSP: 0018:ffff8880ba107c18 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 1ffffffff13e3001 RBX: 0000000000000286 RCX: 1ffff110069cf13a RDX: dffffc0000000000 RSI: ffff888034e789b0 RDI: 0000000000000286 RBP: ffff8880ba122b00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000022b00 R14: 0000000000000000 R15: ffff8880ba122b00 FS: 00007ff619364700(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000001be1a98 CR3: 0000000009e6d000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <IRQ> __mod_timer kernel/time/timer.c:1071 [inline] mod_timer+0x4ea/0x1010 kernel/time/timer.c:1114 call_timer_fn+0x177/0x700 kernel/time/timer.c:1338 expire_timers+0x243/0x4e0 kernel/time/timer.c:1375 __run_timers kernel/time/timer.c:1703 [inline] run_timer_softirq+0x21c/0x670 kernel/time/timer.c:1716 __do_softirq+0x26c/0x9a0 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:544 [inline] smp_apic_timer_interrupt+0x136/0x550 arch/x86/kernel/apic/apic.c:1094 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894 </IRQ> RIP: 0010:zap_pte_range mm/memory.c:1349 [inline] RIP: 0010:zap_pmd_range mm/memory.c:1452 [inline] RIP: 0010:zap_pud_range mm/memory.c:1481 [inline] RIP: 0010:zap_p4d_range mm/memory.c:1502 [inline] RIP: 0010:unmap_page_range+0x12dc/0x2a70 mm/memory.c:1523 Code: d6 ff 48 8b 84 24 a0 00 00 00 48 63 db 48 8d 3c 98 48 89 f8 48 c1 e8 03 42 0f b6 14 30 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 <84> d2 0f 85 19 14 00 00 83 ac 9c 00 01 00 00 01 31 f6 4c 89 ef e8 RSP: 0018:ffff888031847768 EFLAGS: 00000206 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000003 RBX: 0000000000000000 RCX: ffffffff818e29e9 RDX: 0000000000000000 RSI: ffffffff818e29f4 RDI: ffff888031847868 RBP: ffffea000108bd88 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: dead000000000100 R13: ffffea000108bd80 R14: dffffc0000000000 R15: 00007ff619f47000 unmap_single_vma+0x198/0x300 mm/memory.c:1568 unmap_vmas+0xa9/0x180 mm/memory.c:1598 exit_mmap+0x2b9/0x530 mm/mmap.c:3093 __mmput kernel/fork.c:1015 [inline] mmput+0x14e/0x4a0 kernel/fork.c:1036 exit_mm kernel/exit.c:546 [inline] do_exit+0xab5/0x2b70 kernel/exit.c:874 do_group_exit+0x125/0x310 kernel/exit.c:990 get_signal+0x3f2/0x1f70 kernel/signal.c:2589 do_signal+0x8f/0x1670 arch/x86/kernel/signal.c:821 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: 0033:0x45deb9 Code: Bad RIP value. RSP: 002b:00007ff619363c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: 0000000000000000 RBX: 0000000000013440 RCX: 000000000045deb9 RDX: 0000000020000400 RSI: 0000000000008b0b RDI: 0000000000000004 RBP: 000000000118bf60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118bf2c R13: 00007ffec0b98f2f R14: 00007ff6193649c0 R15: 000000000118bf2c Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 20149 Comm: syz-executor.2 Not tainted 4.19.157-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:trace_lock_release include/trace/events/lock.h:58 [inline] RIP: 0010:lock_release+0x172/0x8b0 kernel/locking/lockdep.c:3925 Code: 00 c7 83 84 08 00 00 01 00 00 00 0f 1f 44 00 00 65 8b 05 41 ec b4 7e 83 f8 07 0f 87 89 04 00 00 89 c0 48 0f a3 05 96 15 da 09 <0f> 82 38 04 00 00 48 c7 c0 40 c8 45 8a 48 ba 00 00 00 00 00 fc ff RSP: 0018:ffff8880ba0073e0 EFLAGS: 00000097 RAX: 0000000000000000 RBX: ffff88802de1a240 RCX: ffffffff81565d46 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88802de1aac4 RBP: ffff8880ba024c98 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: ffffffff8c65b01b R12: 1ffff11017400e7f R13: ffffffff81565de7 R14: ffff8880ba024d00 R15: dffffc0000000000 FS: 00007f489841e700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c010338f20 CR3: 000000005a096000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <IRQ> __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:158 [inline] _raw_spin_unlock_irqrestore+0x1b/0xe0 kernel/locking/spinlock.c:184 __run_hrtimer kernel/time/hrtimer.c:1399 [inline] __hrtimer_run_queues+0x397/0xe60 kernel/time/hrtimer.c:1463 hrtimer_interrupt+0x32a/0x930 kernel/time/hrtimer.c:1521 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1067 [inline] smp_apic_timer_interrupt+0x10c/0x550 arch/x86/kernel/apic/apic.c:1092 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894 RIP: 0010:unwind_next_frame+0xf92/0x1c60 arch/x86/kernel/unwind_orc.c:548 Code: 08 84 c0 0f 85 c2 08 00 00 4c 89 c2 41 c6 47 35 00 4c 89 ce 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 48 c1 ee 03 0f b6 14 02 <0f> b6 04 06 4c 89 c6 83 e6 07 40 38 f2 40 0f 9e c6 84 d2 0f 95 c2 RSP: 0018:ffff8880ba007768 EFLAGS: 00000a03 ORIG_RAX: ffffffffffffff13 RAX: dffffc0000000000 RBX: 1ffff11017400ef5 RCX: ffffffff8b90df30 RDX: 0000000000000000 RSI: 1ffffffff1721be6 RDI: ffff8880ba0078a8 RBP: 0000000000000002 R08: ffffffff8b90df34 R09: ffffffff8b90df35 R10: 0000000000074071 R11: 0000000000000001 R12: ffff8880ba007fc8 R13: ffff8880ba007885 R14: ffff8880ba007888 R15: ffff8880ba007850 __save_stack_trace+0x9f/0x190 arch/x86/kernel/stacktrace.c:44 save_stack mm/kasan/kasan.c:448 [inline] set_track mm/kasan/kasan.c:460 [inline] kasan_kmalloc+0xeb/0x160 mm/kasan/kasan.c:553 kmem_cache_alloc_node_trace+0x151/0x3b0 mm/slab.c:3668 __do_kmalloc_node mm/slab.c:3688 [inline] __kmalloc_node_track_caller+0x38/0x70 mm/slab.c:3703 __kmalloc_reserve net/core/skbuff.c:137 [inline] __alloc_skb+0xae/0x560 net/core/skbuff.c:205 skb_copy+0x139/0x2f0 net/core/skbuff.c:1349 mac80211_hwsim_tx_frame_no_nl.isra.0+0xb8a/0x1330 drivers/net/wireless/mac80211_hwsim.c:1353 mac80211_hwsim_tx_frame+0x12b/0x210 drivers/net/wireless/mac80211_hwsim.c:1556 mac80211_hwsim_beacon_tx+0x3f8/0x680 drivers/net/wireless/mac80211_hwsim.c:1595 __iterate_interfaces+0x2e1/0x4a0 net/mac80211/util.c:614 ieee80211_iterate_active_interfaces_atomic+0x8d/0x170 net/mac80211/util.c:650 mac80211_hwsim_beacon+0xc9/0x190 drivers/net/wireless/mac80211_hwsim.c:1615 __tasklet_hrtimer_trampoline+0x29/0xa0 kernel/softirq.c:601 tasklet_action_common.constprop.0+0x265/0x360 kernel/softirq.c:522 __do_softirq+0x26c/0x9a0 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:544 [inline] smp_apic_timer_interrupt+0x136/0x550 arch/x86/kernel/apic/apic.c:1094 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894 </IRQ> RIP: 0010:_vm_normal_page+0x0/0x510 mm/memory.c:833 Code: e9 3a ff ff ff 48 c7 c7 50 e4 ce 89 e8 79 e9 0c 00 e9 98 fe ff ff 48 c7 c7 e8 e4 ce 89 e8 68 e9 0c 00 e9 d9 fe ff ff 0f 1f 00 <41> 57 41 56 49 89 f6 41 55 49 89 fd 41 54 55 53 48 bb 00 00 00 00 RSP: 0018:ffff8880366df760 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 RAX: ffff88802de1a240 RBX: 8000000000000007 RCX: 0000000000000001 RDX: 800000009b4ee007 RSI: 00007f48990e4000 RDI: ffff8880a1592040 RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000005 R11: 0000000000000000 R12: 800000009b4ee007 R13: ffffea00026d3b40 R14: dffffc0000000000 R15: 00007f48990e5000 zap_pte_range mm/memory.c:1323 [inline] zap_pmd_range mm/memory.c:1452 [inline] zap_pud_range mm/memory.c:1481 [inline] zap_p4d_range mm/memory.c:1502 [inline] unmap_page_range+0xfba/0x2a70 mm/memory.c:1523 unmap_single_vma+0x198/0x300 mm/memory.c:1568 unmap_vmas+0xa9/0x180 mm/memory.c:1598 exit_mmap+0x2b9/0x530 mm/mmap.c:3093 __mmput kernel/fork.c:1015 [inline] mmput+0x14e/0x4a0 kernel/fork.c:1036 exit_mm kernel/exit.c:546 [inline] do_exit+0xab5/0x2b70 kernel/exit.c:874 do_group_exit+0x125/0x310 kernel/exit.c:990 get_signal+0x3f2/0x1f70 kernel/signal.c:2589 do_signal+0x8f/0x1670 arch/x86/kernel/signal.c:821 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: 0033:0x45deb9 Code: Bad RIP value. RSP: 002b:00007f489841dc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: 0000000000000000 RBX: 000000000001a440 RCX: 000000000045deb9 RDX: 0000000020000100 RSI: 00000000400454ca RDI: 0000000000000005 RBP: 000000000118bf60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118bf2c R13: 00007ffdda9b422f R14: 00007f489841e9c0 R15: 000000000118bf2c