bridge0: received packet on veth0_to_bridge with own address as source address (addr:2e:37:d2:a3:1e:7e, vlan:0) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P25930/1:b..l rcu: (detected by 0, t=10502 jiffies, g=183477, q=1545 ncpus=2) task:syz.9.5349 state:R running task stack:25592 pid:25930 tgid:25930 ppid:19008 task_flags:0x40044c flags:0x00080002 Call Trace: context_switch kernel/sched/core.c:5352 [inline] __schedule+0x165c/0x5560 kernel/sched/core.c:6964 preempt_schedule_irq+0x4d/0xa0 kernel/sched/core.c:7292 irqentry_exit+0x5e4/0x700 kernel/entry/common.c:240 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 RIP: 0010:unwind_next_frame+0x733/0x2550 arch/x86/kernel/unwind_orc.c:530 Code: 0f 85 b5 17 00 00 0f b7 1e c1 eb 0b 80 e3 01 48 8b 44 24 38 0f b6 04 28 84 c0 0f 85 c4 17 00 00 48 8b 44 24 18 88 18 0f b7 1e <83> e3 0f 83 fb 04 4c 8b 7c 24 78 7e 7a 83 fb 06 0f 8e 7a 01 00 00 RSP: 0018:ffffc9000522f298 EFLAGS: 00000246 RAX: ffffc9000522f39d RBX: 0000000000000284 RCX: ffffffff902dce4c RDX: ffffffff90aba66a RSI: ffffffff90aba66e RDI: ffffffff8c287ba0 RBP: dffffc0000000000 R08: 0000000000000006 R09: ffffffff8e75d7e0 R10: ffffc9000522f3b8 R11: ffffffff81b18c30 R12: ffffffff90aba66f R13: 1ffff92000a45e6d R14: ffffc9000522f368 R15: ffffffff817716b6 arch_stack_walk+0x11b/0x150 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0xa9/0x100 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:57 [inline] kasan_save_track+0x3e/0x80 mm/kasan/common.c:78 poison_kmalloc_redzone mm/kasan/common.c:398 [inline] __kasan_kmalloc+0x93/0xb0 mm/kasan/common.c:415 kasan_kmalloc include/linux/kasan.h:263 [inline] __kmalloc_cache_noprof+0x31c/0x660 mm/slub.c:5412 kmalloc_noprof include/linux/slab.h:950 [inline] slab_free_hook mm/slub.c:2641 [inline] slab_free mm/slub.c:6242 [inline] kmem_cache_free+0x156/0x650 mm/slub.c:6369 tear_down_vmas+0x302/0x520 mm/mmap.c:1262 exit_mmap+0x4b6/0x9e0 mm/mmap.c:1320 __mmput+0x118/0x430 kernel/fork.c:1188 exit_mm+0x18e/0x250 kernel/exit.c:581 do_exit+0x8b9/0x2490 kernel/exit.c:962 do_group_exit+0x21b/0x2d0 kernel/exit.c:1116 get_signal+0x1284/0x1330 kernel/signal.c:3036 arch_do_signal_or_restart+0xbc/0x830 arch/x86/kernel/signal.c:337 __exit_to_user_mode_loop kernel/entry/common.c:64 [inline] exit_to_user_mode_loop+0x86/0x480 kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:238 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:269 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:325 [inline] do_syscall_64+0x32d/0xf80 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7feb5df9c799 RSP: 002b:00007ffe8321af08 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffdfc RBX: 000000000015fdae RCX: 00007feb5df9c799 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007feb5e215fac RBP: 0000000000000bea R08: 3fffffffffffffff R09: 0000000000000000 R10: 00007ffe8321b010 R11: 0000000000000246 R12: 00007ffe8321b030 R13: 00007feb5e215fac R14: 0000000000160998 R15: 00007ffe8321b010 bridge0: received packet on veth0_to_bridge with own address as source address (addr:2e:37:d2:a3:1e:7e, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:2e:37:d2:a3:1e:7e, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:2e:37:d2:a3:1e:7e, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:2e:37:d2:a3:1e:7e, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:2e:37:d2:a3:1e:7e, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:2e:37:d2:a3:1e:7e, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:2e:37:d2:a3:1e:7e, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:2e:37:d2:a3:1e:7e, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:2e:37:d2:a3:1e:7e, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:2e:37:d2:a3:1e:7e, vlan:0)