bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:72:ae:b0:dc:63:5d, vlan:0) rcu: INFO: rcu_preempt self-detected stall on CPU rcu: 1-....: (10357 ticks this GP) idle=72ec/1/0x4000000000000000 softirq=57125/57279 fqs=30 rcu: hardirqs softirqs csw/system rcu: number: 1291045 132 0 rcu: cputime: 20771 11753 366 ==> 32560(ms) rcu: (t=10503 jiffies g=75833 q=463 ncpus=2) CPU: 1 PID: 14699 Comm: syz.7.2547 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 RIP: 0010:get_current arch/x86/include/asm/current.h:41 [inline] RIP: 0010:__sanitizer_cov_trace_pc+0x8/0x60 kernel/kcov.c:215 Code: 00 00 f3 0f 1e fa 53 48 89 fb e8 13 00 00 00 48 8b 3d 3c 6e 03 0d 48 89 de 5b e9 93 57 57 00 cc cc cc f3 0f 1e fa 48 8b 04 24 <65> 48 8b 0d 90 c2 7c 7e 65 8b 15 91 c2 7c 7e 81 e2 00 01 ff 00 74 RSP: 0018:ffffc900001f03b0 EFLAGS: 00000246 RAX: ffffffff813b1fd5 RBX: ffffffff8f0d88a8 RCX: 0000000000000003 RDX: ffffffff813b1d62 RSI: ffffffff8cf9e760 RDI: 0000000000000004 RBP: ffffc900001f04d8 R08: ffff88802a209e00 R09: 0000000000000008 R10: 0000000000000009 R11: 0000000000000100 R12: ffffc900001f0488 R13: dffffc0000000000 R14: 0000000000000004 R15: ffffffff8f0d88ac FS: 00007f3fd9e3b6c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 000000005ef72000 CR4: 00000000003506e0 DR0: 0000200000000300 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: unwind_next_frame+0x9b5/0x2970 arch/x86/kernel/unwind_orc.c:521 arch_stack_walk+0x144/0x190 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0xaa/0x100 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:46 [inline] kasan_set_track+0x4e/0x70 mm/kasan/common.c:53 kasan_save_free_info+0x2e/0x50 mm/kasan/generic.c:522 ____kasan_slab_free+0x126/0x1e0 mm/kasan/common.c:237 kasan_slab_free include/linux/kasan.h:164 [inline] slab_free_hook mm/slub.c:1811 [inline] slab_free_freelist_hook+0x130/0x1a0 mm/slub.c:1837 slab_free mm/slub.c:3830 [inline] kmem_cache_free+0xf8/0x270 mm/slub.c:3852 kfree_skb include/linux/skbuff.h:1232 [inline] ip6_mc_input+0xaa0/0xcb0 net/ipv6/ip6_input.c:589 NF_HOOK+0x32d/0x3b0 include/linux/netfilter.h:304 __netif_receive_skb_one_core net/core/dev.c:5638 [inline] __netif_receive_skb+0xcc/0x290 net/core/dev.c:5752 process_backlog+0x396/0x700 net/core/dev.c:6080 __napi_poll+0xc0/0x460 net/core/dev.c:6642 napi_poll net/core/dev.c:6709 [inline] net_rx_action+0x616/0xc50 net/core/dev.c:6846 handle_softirqs+0x280/0x820 kernel/softirq.c:578 __do_softirq kernel/softirq.c:612 [inline] invoke_softirq kernel/softirq.c:452 [inline] __irq_exit_rcu+0xd3/0x190 kernel/softirq.c:661 irq_exit_rcu+0x9/0x20 kernel/softirq.c:673 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1088 [inline] sysvec_apic_timer_interrupt+0xa4/0xc0 arch/x86/kernel/apic/apic.c:1088 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:687 RIP: 0010:call_rcu+0x6da/0x950 kernel/rcu/tree.c:2837 Code: f7 84 24 a0 00 00 00 00 02 00 00 43 c6 44 25 04 f8 75 4f f7 44 24 58 00 02 00 00 74 01 fb 48 c7 84 24 80 00 00 00 0e 36 e0 45 <4b> c7 44 25 00 00 00 00 00 43 c7 44 25 08 00 00 00 00 65 48 8b 04 RSP: 0018:ffffc90005697700 EFLAGS: 00000206 RAX: 76e44ae0d708de00 RBX: ffffc90003400000 RCX: 76e44ae0d708de00 RDX: dffffc0000000000 RSI: ffffffff8acabd00 RDI: ffffffff8b1c74a0 RBP: ffffc90005697830 R08: ffffffff8e8a5f2f R09: 1ffffffff1d14be5 R10: dffffc0000000000 R11: fffffbfff1d14be6 R12: dffffc0000000000 R13: 1ffff92000ad2ef0 R14: 1ffff110171e79fd R15: 0000000000000016 thread_stack_delayed_free kernel/fork.c:231 [inline] free_thread_stack kernel/fork.c:337 [inline] release_task_stack kernel/fork.c:590 [inline] put_task_stack+0x147/0x200 kernel/fork.c:597 finish_task_switch+0x43e/0x8f0 kernel/sched/core.c:5288 context_switch kernel/sched/core.c:5384 [inline] __schedule+0x155b/0x45a0 kernel/sched/core.c:6700 schedule+0xbd/0x170 kernel/sched/core.c:6774 futex_wait_queue+0x138/0x1b0 kernel/futex/waitwake.c:355 futex_wait+0x1ec/0x5e0 kernel/futex/waitwake.c:656 do_futex+0x2ff/0x3e0 kernel/futex/syscalls.c:134 __do_sys_futex kernel/futex/syscalls.c:211 [inline] __se_sys_futex+0x3a9/0x440 kernel/futex/syscalls.c:192 do_syscall_x64 arch/x86/entry/common.c:46 [inline] do_syscall_64+0x55/0xa0 arch/x86/entry/common.c:76 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f3fd8f9acb9 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f3fd9e3b0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: ffffffffffffffda RBX: 00007f3fd9215fa8 RCX: 00007f3fd8f9acb9 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f3fd9215fa8 RBP: 00007f3fd9215fa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f3fd9216038 R14: 00007ffcc624b2a0 R15: 00007ffcc624b388 net_ratelimit: 185 callbacks suppressed bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:72:ae:b0:dc:63:5d, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:72:ae:b0:dc:63:5d, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) net_ratelimit: 214 callbacks suppressed bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:72:ae:b0:dc:63:5d, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:72:ae:b0:dc:63:5d, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)