BUG: soft lockup in br_multicast_port_group

Kernel	Title	Count	Last	Reported	Patched	Status
android-5-15	BUG: soft lockup in br_multicast_port_group_expired	2	14d	97d	0/2	premoderation: reported on 2024/08/16 17:45
android-6-1	BUG: soft lockup in br_multicast_port_group_expired	3	47d	159d	0/2	premoderation: reported on 2024/06/15 09:56
android-5-10	BUG: soft lockup in br_multicast_port_group_expired	1	89d	89d	0/2	premoderation: reported on 2024/08/23 20:07
linux-5.15	INFO: rcu detected stall in br_multicast_port_group_expired	1	140d	140d	0/3	auto-obsoleted due to no activity on 2024/10/11 20:34
watchdog: BUG: soft lockup - CPU#1 stuck for 126s! [syz-executor.2:405]
Modules linked in:
CPU: 1 PID: 405 Comm: syz-executor.2 Not tainted 5.4.274-syzkaller-00016-gdd432c37afcd #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
RIP: 0010:consume_skb+0x1/0x2a0 net/core/skbuff.c:844
Code: 03 38 c1 7c 91 4c 89 ff e8 ac e1 1b fe eb 87 89 d9 80 e1 07 38 c1 7c 96 48 89 df e8 79 e1 1b fe eb 8c 0f 1f 80 00 00 00 00 55 <41> 57 41 56 41 54 53 49 89 fe e8 a0 fc eb fd 4d 85 f6 0f 84 9c 00
RSP: 0018:ffff8881f6f09958 EFLAGS: 00000206 ORIG_RAX: ffffffffffffff13
RAX: ffffffff8397d602 RBX: 0000000000000000 RCX: ffff8881f31c4ec0
RDX: 0000000000000101 RSI: 0000000000000000 RDI: ffff8881ee179b40
RBP: ffff8881d74af000 R08: ffffffff8397c715 R09: ffffed103d2a43a8
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
FS:  00007f8220c4a6c0(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6c33cf0580 CR3: 00000001df70b000 CR4: 00000000003406a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 netlink_broadcast_filtered+0x115f/0x1280 net/netlink/af_netlink.c:1531
 netlink_broadcast net/netlink/af_netlink.c:1553 [inline]
 nlmsg_multicast include/net/netlink.h:968 [inline]
 nlmsg_notify+0xf7/0x1b0 net/netlink/af_netlink.c:2524
 __br_mdb_notify+0x8f8/0xc60 net/bridge/br_mdb.c:434
 br_mdb_notify+0x203/0x360 net/bridge/br_mdb.c:457
 br_multicast_del_pg+0x25f/0x3c0 net/bridge/br_multicast.c:186
 br_multicast_port_group_expired+0x14c/0x170 net/bridge/br_multicast.c:210
 call_timer_fn+0x36/0x390 kernel/time/timer.c:1448
 expire_timers kernel/time/timer.c:1493 [inline]
 __run_timers+0x879/0xbe0 kernel/time/timer.c:1817
 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1830
 __do_softirq+0x23b/0x6b7 kernel/softirq.c:292
 invoke_softirq kernel/softirq.c:373 [inline]
 irq_exit+0x195/0x1c0 kernel/softirq.c:413
 exiting_irq arch/x86/include/asm/apic.h:538 [inline]
 smp_apic_timer_interrupt+0x11a/0x460 arch/x86/kernel/apic/apic.c:1149
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:834
 </IRQ>
RIP: 0010:zap_pmd_range mm/memory.c:1195 [inline]
RIP: 0010:zap_pud_range mm/memory.c:1251 [inline]
RIP: 0010:zap_p4d_range mm/memory.c:1272 [inline]
RIP: 0010:unmap_page_range+0x576/0x2620 mm/memory.c:1293
Code: 89 b4 24 88 00 00 00 4c 8b 74 24 50 4c 89 f0 48 c1 e8 03 48 89 84 24 c0 00 00 00 42 80 3c 20 00 74 08 4c 89 f7 e8 da 5e 09 00 <4d> 8b 2e 4c 89 ee 48 83 e6 9f 41 0f 95 c4 31 ff e8 35 7d d9 ff 4c
RSP: 0018:ffff8881ef10f5a0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: 1ffff1103de82d97 RBX: 0400000000000080 RCX: 0000001b32e20000
RDX: ffff8881f31c4ec0 RSI: 0000001b3321ffff RDI: 0000001b32ffffff
RBP: ffff8881ef10f790 R08: ffffffff818ac1fd R09: ffffed103c0deee4
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: 0000001b3321ffff R14: ffff8881ef416cb8 R15: 0000001b32ffffff
 unmap_single_vma mm/memory.c:1338 [inline]
 unmap_vmas+0x355/0x4b0 mm/memory.c:1370
 exit_mmap+0x2bc/0x520 mm/mmap.c:3191
 __mmput+0x8e/0x2c0 kernel/fork.c:1101
 exit_mm kernel/exit.c:536 [inline]
 do_exit+0xc08/0x2bc0 kernel/exit.c:846
 do_group_exit+0x138/0x300 kernel/exit.c:982
 get_signal+0xdb1/0x1440 kernel/signal.c:2735
 do_signal+0xb0/0x11f0 arch/x86/kernel/signal.c:809
 exit_to_usermode_loop+0xc0/0x1a0 arch/x86/entry/common.c:159
 prepare_exit_to_usermode+0x199/0x200 arch/x86/entry/common.c:194
 entry_SYSCALL_64_after_hwframe+0x5c/0xc1
RIP: 0033:0x7f82218cfee9
Code: Bad RIP value.
RSP: 002b:00007f8220c4a0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: 0000000000000000 RBX: 00007f8221a06f80 RCX: 00007f82218cfee9
RDX: 00000000200006c0 RSI: 0000000000005452 RDI: 0000000000000006
RBP: 00007f822192d6fe R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f8221a06f80 R15: 00007ffe99e30258
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 419 Comm: syz-executor.1 Not tainted 5.4.274-syzkaller-00016-gdd432c37afcd #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
RIP: 0010:native_apic_msr_write+0x0/0x50 arch/x86/include/asm/apic.h:203
Code: 48 89 df e8 12 60 65 00 48 8b 03 bf f0 03 00 00 44 89 f6 5b 41 5e 5d ff e0 90 b9 0b 08 00 00 31 c0 31 d2 0f 30 c3 0f 1f 40 00 <81> ff cf 00 00 00 7f 0c 83 ff 20 74 2d 83 ff 30 74 28 eb 10 81 ff
RSP: 0018:ffff8881f6e08d58 EFLAGS: 00000046
RAX: ffffffff812ec120 RBX: ffffffff85632228 RCX: ffff8881f32fcec0
RDX: 0000000000010104 RSI: 00000000000000f6 RDI: 00000000000003f0
RBP: 0000000000000000 R08: ffffffff822c4141 R09: ffffed103edca9b7
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: 1ffff1103dd8b160 R14: dffffc0000000000 R15: dffffc0000000001
FS:  00007f6c25f516c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6c26bd6ebf CR3: 0000000005e0e000 CR4: 00000000003406b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 arch_irq_work_raise+0x82/0xd0 arch/x86/kernel/irq_work.c:31
 irq_work_queue+0xfe/0x140 kernel/irq_work.c:83
 __perf_event_overflow+0x282/0x360 kernel/events/core.c:8305
 perf_swevent_hrtimer+0x3fd/0x560 kernel/events/core.c:9688
 __run_hrtimer kernel/time/hrtimer.c:1581 [inline]
 __hrtimer_run_queues+0x3e9/0xb90 kernel/time/hrtimer.c:1643
 hrtimer_interrupt+0x38a/0x890 kernel/time/hrtimer.c:1705
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1122 [inline]
 smp_apic_timer_interrupt+0x110/0x460 arch/x86/kernel/apic/apic.c:1147
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:834
RIP: 0010:__orc_find arch/x86/kernel/unwind_orc.c:47 [inline]
RIP: 0010:orc_find arch/x86/kernel/unwind_orc.c:175 [inline]
RIP: 0010:unwind_next_frame+0x5df/0x1ea0 arch/x86/kernel/unwind_orc.c:438
Code: 00 48 8b 84 24 80 01 00 00 e9 8e 08 00 00 a9 00 04 00 00 0f 84 1e 12 00 00 e9 41 12 00 00 49 89 d6 49 89 d5 4c 89 f8 4c 29 e8 <48> 89 c1 48 c1 f9 02 48 c1 e8 3f 48 01 c8 48 83 e0 fe 49 8d 5c 45
RSP: 0018:ffff8881f6e09400 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000004 RBX: ffffffff864e7540 RCX: ffffffff864e7544
RDX: ffffffff864e7528 RSI: ffffffff8677fc8c RDI: 0000000000000001
RBP: ffff8881f6e096f0 R08: 0000000000000009 R09: ffff8881f6e09750
R10: 0000000000000000 R11: dffffc0000000001 R12: ffffffff810068f8
R13: ffffffff864e7544 R14: ffffffff864e7540 R15: ffffffff864e7548
 arch_stack_walk+0x111/0x140 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x118/0x1c0 kernel/stacktrace.c:123
 save_stack mm/kasan/common.c:70 [inline]
 set_track mm/kasan/common.c:78 [inline]
 __kasan_kmalloc+0x171/0x210 mm/kasan/common.c:529
 slab_post_alloc_hook mm/slab.h:584 [inline]
 slab_alloc_node mm/slub.c:2829 [inline]
 slab_alloc mm/slub.c:2837 [inline]
 __kmalloc_track_caller+0x100/0x2b0 mm/slub.c:4449
 __kmalloc_reserve net/core/skbuff.c:142 [inline]
 __alloc_skb+0xb4/0x4d0 net/core/skbuff.c:210
 alloc_skb include/linux/skbuff.h:1080 [inline]
 ndisc_alloc_skb+0xee/0x2c0 net/ipv6/ndisc.c:421
 ndisc_send_rs+0x269/0x6a0 net/ipv6/ndisc.c:687
 addrconf_rs_timer+0x2d1/0x600 net/ipv6/addrconf.c:3953
 call_timer_fn+0x36/0x390 kernel/time/timer.c:1448
 expire_timers kernel/time/timer.c:1493 [inline]
 __run_timers+0x879/0xbe0 kernel/time/timer.c:1817
 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1830
 __do_softirq+0x23b/0x6b7 kernel/softirq.c:292
 invoke_softirq kernel/softirq.c:373 [inline]
 irq_exit+0x195/0x1c0 kernel/softirq.c:413
 exiting_irq arch/x86/include/asm/apic.h:538 [inline]
 smp_apic_timer_interrupt+0x11a/0x460 arch/x86/kernel/apic/apic.c:1149
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:834
 </IRQ>
RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:169 [inline]
RIP: 0010:_raw_spin_unlock_irq+0x45/0x60 kernel/locking/spinlock.c:199
Code: 08 00 74 0c 48 c7 c7 90 3b eb 85 e8 a5 12 43 fd 48 83 3d 1d 2d 9a 01 00 74 29 48 89 df e8 33 e8 fa fc 66 90 fb bf 01 00 00 00 <e8> b6 d4 f3 fc 65 8b 05 fb 7e b1 7b 85 c0 74 02 5b c3 e8 84 45 af
RSP: 0018:ffff8881eeb37610 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000001 RBX: ffff8881f6e57b40 RCX: dffffc0000000000
RDX: 0000000040000000 RSI: 0000000000000000 RDI: 0000000000000001
RBP: ffff8881eeb37670 R08: ffffffff81799989 R09: fffffbfff0c96e5b
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881f6e57b40
R13: ffff8881f32fcec0 R14: dffffc0000000000 R15: 0000000000000000
 finish_lock_switch kernel/sched/core.c:3347 [inline]
 finish_task_switch+0x130/0x590 kernel/sched/core.c:3447
 context_switch kernel/sched/core.c:3611 [inline]
 __schedule+0xb0d/0x1320 kernel/sched/core.c:4307
 preempt_schedule_irq+0xc7/0x140 kernel/sched/core.c:4558
 retint_kernel+0x1b/0x1b
RIP: 0010:exit_mmap+0x130/0x520 mm/mmap.c:3171
Code: 85 99 03 00 00 e8 70 17 d7 ff 49 8d 9f d0 00 00 00 48 89 d8 48 c1 e8 03 42 80 3c 30 00 74 08 48 89 df e8 43 fc 06 00 48 8b 1b <31> ff 48 89 de e8 a6 1a d7 ff 48 85 db 0f 84 d8 00 00 00 4c 89 f8
RSP: 0018:ffff8881eeb378c0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: 1ffff1103c0ded72 RBX: 0000000000000000 RCX: ffff8881f32fcec0
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffff8881eeb379f8 R08: ffffffff818d24a2 R09: ffffed103c0dedc9
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881e06f6e40
R13: 00000000000007fd R14: dffffc0000000000 R15: ffff8881e06f6ac0
 __mmput+0x8e/0x2c0 kernel/fork.c:1101
 exit_mm kernel/exit.c:536 [inline]
 do_exit+0xc08/0x2bc0 kernel/exit.c:846
 do_group_exit+0x138/0x300 kernel/exit.c:982
 get_signal+0xdb1/0x1440 kernel/signal.c:2735
 do_signal+0xb0/0x11f0 arch/x86/kernel/signal.c:809
 exit_to_usermode_loop+0xc0/0x1a0 arch/x86/entry/common.c:159
 prepare_exit_to_usermode+0x199/0x200 arch/x86/entry/common.c:194
 entry_SYSCALL_64_after_hwframe+0x5c/0xc1
RIP: 0033:0x7f6c26bd6ee9
Code: Bad RIP value.
RSP: 002b:00007f6c25f510c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: 0000000000000000 RBX: 00007f6c26d0df80 RCX: 00007f6c26bd6ee9
RDX: 00000000200006c0 RSI: 0000000000005452 RDI: 0000000000000003
RBP: 00007f6c26c346fe R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f6c26d0df80 R15: 00007ffd8819de68