bridge0: received packet on veth0_to_bridge with own address as source address (addr:d2:34:4a:31:b2:04, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P28822/1:b..l P9980/1:b..l rcu: (detected by 0, t=10502 jiffies, g=120921, q=1994 ncpus=1) task:udevd state:R running task stack:24632 pid:9980 tgid:9980 ppid:5194 task_flags:0x40014c flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5298 [inline] __schedule+0xfee/0x6120 kernel/sched/core.c:6911 preempt_schedule_irq+0x50/0x90 kernel/sched/core.c:7238 irqentry_exit+0x17b/0x670 kernel/entry/common.c:239 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 RIP: 0010:lock_release+0x19e/0x320 kernel/locking/lockdep.c:5893 Code: ff 65 0f c1 05 4b d6 29 12 83 f8 01 0f 85 3d 01 00 00 9c 58 f6 c4 02 0f 85 28 01 00 00 41 f7 c6 00 02 00 00 0f 85 de 00 00 00 <48> 8b 44 24 10 65 48 2b 05 9d 8e 29 12 0f 85 63 01 00 00 48 83 c4 RSP: 0018:ffffc900054e74f8 EFLAGS: 00000206 RAX: 0000000000000046 RBX: ffffffff8e7e75e0 RCX: ffffc900054e7504 RDX: 0000000000000001 RSI: ffffffff8de5d94b RDI: ffffffff8c1b1e20 RBP: ffffffff81b7c03e R08: 0000000000000001 R09: 0000000000000007 R10: 0000000000000200 R11: 000000000000c60d R12: ffff888033a9db80 R13: ffffc900054e75b0 R14: 0000000000000202 R15: 0000000000000002 rcu_lock_release include/linux/rcupdate.h:319 [inline] rcu_read_unlock include/linux/rcupdate.h:878 [inline] class_rcu_destructor include/linux/rcupdate.h:1190 [inline] unwind_next_frame+0x3c3/0x1ea0 arch/x86/kernel/unwind_orc.c:495 arch_stack_walk+0x94/0xf0 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x8e/0xc0 kernel/stacktrace.c:122 kasan_save_stack+0x30/0x50 mm/kasan/common.c:57 kasan_record_aux_stack+0xa7/0xc0 mm/kasan/generic.c:556 slab_free_hook mm/slub.c:2646 [inline] slab_free mm/slub.c:6165 [inline] kmem_cache_free+0x434/0x6a0 mm/slub.c:6295 anon_vma_free mm/rmap.c:137 [inline] __put_anon_vma+0x114/0x3a0 mm/rmap.c:2909 put_anon_vma mm/internal.h:215 [inline] unlink_anon_vmas+0x5f3/0x8e0 mm/rmap.c:536 free_pgtables+0x2e7/0xd80 mm/memory.c:427 exit_mmap+0x44c/0xa30 mm/mmap.c:1314 __mmput+0x12a/0x410 kernel/fork.c:1175 mmput+0x67/0x80 kernel/fork.c:1198 exit_mm kernel/exit.c:581 [inline] do_exit+0x819/0x2b60 kernel/exit.c:964 do_group_exit+0xd5/0x2a0 kernel/exit.c:1118 __do_sys_exit_group kernel/exit.c:1129 [inline] __se_sys_exit_group kernel/exit.c:1127 [inline] __x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1127 x64_sys_call+0x102c/0x1530 arch/x86/include/generated/asm/syscalls_64.h:232 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x106/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f866ecf16c5 RSP: 002b:00007ffc72d78618 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 000055d547f93b60 RCX: 00007f866ecf16c5 RDX: 00000000000000e7 RSI: fffffffffffffe68 RDI: 0000000000000000 RBP: 000055d547f6c910 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc72d78660 R14: 0000000000000000 R15: 0000000000000000 task:syz.9.4413 state:R running task stack:22440 pid:28822 tgid:28822 ppid:21750 task_flags:0x400640 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5298 [inline] __schedule+0xfee/0x6120 kernel/sched/core.c:6911 preempt_schedule_irq+0x50/0x90 kernel/sched/core.c:7238 irqentry_exit+0x17b/0x670 kernel/entry/common.c:239 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 RIP: 0010:xa_is_sibling include/linux/xarray.h:1293 [inline] RIP: 0010:xas_descend lib/xarray.c:211 [inline] RIP: 0010:xas_load+0x1d5/0x5c0 lib/xarray.c:246 Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 98 03 00 00 4d 89 6c 24 18 49 89 de 41 83 e6 03 4c 89 f6 bf 02 00 00 00 e8 8b ae 7b f6 <49> 83 fe 02 0f 84 85 00 00 00 e8 9c b3 7b f6 49 8d 7c 24 12 48 b8 RSP: 0018:ffffc90003b9ebd8 EFLAGS: 00000293 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff8b8c90f5 RDX: 0000000000000000 RSI: 0000000000000002 RDI: ffff888038723d00 RBP: 0000000000000015 R08: 0000000000000007 R09: 0000000000000002 R10: 0000000000000000 R11: 0000000000000000 R12: ffffc90003b9ec30 R13: ffff888035dc3700 R14: 0000000000000000 R15: 0000000000000001 filemap_get_entry+0x109/0x3b0 mm/filemap.c:1900 shmem_get_folio_gfp+0xa4c/0x1900 mm/shmem.c:2491 shmem_get_folio mm/shmem.c:2673 [inline] shmem_write_begin+0x1a4/0x420 mm/shmem.c:3327 generic_perform_write+0x292/0xa40 mm/filemap.c:4324 shmem_file_write_iter+0x10e/0x140 mm/shmem.c:3502 __kernel_write_iter+0x2ac/0x920 fs/read_write.c:621 dump_emit_page fs/coredump.c:1299 [inline] dump_user_range+0x3f9/0xb50 fs/coredump.c:1373 elf_core_dump+0x2d5f/0x3d10 fs/binfmt_elf.c:2110 coredump_write fs/coredump.c:1050 [inline] do_coredump fs/coredump.c:1127 [inline] vfs_coredump+0x27bc/0x5570 fs/coredump.c:1201 get_signal+0x1f2a/0x21e0 kernel/signal.c:3019 arch_do_signal_or_restart+0x91/0x770 arch/x86/kernel/signal.c:337 __exit_to_user_mode_loop kernel/entry/common.c:64 [inline] exit_to_user_mode_loop kernel/entry/common.c:98 [inline] __exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline] irqentry_exit_to_user_mode_prepare include/linux/irq-entry-common.h:270 [inline] irqentry_exit_to_user_mode include/linux/irq-entry-common.h:339 [inline] irqentry_exit+0x1f8/0x670 kernel/entry/common.c:219 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:618 RIP: 0033:0x0 RSP: 002b:000000000000000a EFLAGS: 00010217 RAX: 0000000000000000 RBX: 00007fee8a016180 RCX: 00007fee89d9c819 RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000020003b46 RBP: 00007fee89e32c91 R08: 0000000000000002 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fee8a016218 R14: 00007fee8a016180 R15: 00007ffca7f4fe28 net_ratelimit: 25211 callbacks suppressed 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:d2:34:4a:31:b2:04, 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:d2:34:4a:31:b2:04, 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) net_ratelimit: 35560 callbacks suppressed 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:d2:34:4a:31:b2:04, 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:d2:34:4a:31:b2:04, 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:d2:34:4a:31:b2:04, vlan:0)