bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P10922/1:b..l P11039/1:b..l rcu: (detected by 0, t=10502 jiffies, g=52913, q=1228 ncpus=1) task:syz.3.1071 state:R running task stack:27232 pid:11039 tgid:11038 ppid:5835 task_flags:0x400140 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5256 [inline] __schedule+0x1139/0x6150 kernel/sched/core.c:6863 preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7190 irqentry_exit+0x1d8/0x8c0 kernel/entry/common.c:216 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 RIP: 0010:lock_is_held_type+0x107/0x150 kernel/locking/lockdep.c:5945 Code: 00 00 b8 ff ff ff ff 65 0f c1 05 5c 20 3d 08 83 f8 01 75 2d 9c 58 f6 c4 02 75 43 48 f7 04 24 00 02 00 00 74 01 fb 48 83 c4 08 <44> 89 e8 5b 5d 41 5c 41 5d 41 5e 41 5f e9 87 2c 03 00 45 31 ed eb RSP: 0018:ffffc90004c1f390 EFLAGS: 00000296 RAX: 0000000000000046 RBX: ffff88802c084880 RCX: 0000000000000001 RDX: 0000000000000000 RSI: ffffffff8daa458e RDI: ffffffff8bf2b580 RBP: ffffffff8e3c9520 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000000 R11: ffff88802c084830 R12: ffff88802c083d00 R13: 0000000000000001 R14: 00000000ffffffff R15: 0000000000000002 xa_entry include/linux/xarray.h:1226 [inline] xas_find+0x456/0x890 lib/xarray.c:1423 find_get_entry mm/filemap.c:2062 [inline] find_lock_entries+0x16e/0xbf0 mm/filemap.c:2166 shmem_undo_range+0x216/0x1140 mm/shmem.c:1119 shmem_truncate_range mm/shmem.c:1249 [inline] shmem_setattr+0xeb5/0x1140 mm/shmem.c:1334 notify_change+0x6d2/0x1290 fs/attr.c:546 do_truncate+0x1d7/0x230 fs/open.c:68 handle_truncate fs/namei.c:4235 [inline] do_open fs/namei.c:4632 [inline] path_openat+0x2a1a/0x3140 fs/namei.c:4787 do_filp_open+0x20b/0x470 fs/namei.c:4814 do_sys_openat2+0x121/0x290 fs/open.c:1430 do_sys_open fs/open.c:1436 [inline] __do_sys_openat fs/open.c:1452 [inline] __se_sys_openat fs/open.c:1447 [inline] __x64_sys_openat+0x174/0x210 fs/open.c:1447 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f17d518f7c9 RSP: 002b:00007f17d6080038 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007f17d53e5fa0 RCX: 00007f17d518f7c9 RDX: 0000000000060742 RSI: 0000200000000140 RDI: ffffffffffffff9c RBP: 00007f17d5213f91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f17d53e6038 R14: 00007f17d53e5fa0 R15: 00007ffe1e7ef9a8 task:syz.2.1045 state:R running task stack:22696 pid:10922 tgid:10922 ppid:5833 task_flags:0x400640 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5256 [inline] __schedule+0x1139/0x6150 kernel/sched/core.c:6863 preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7190 irqentry_exit+0x1d8/0x8c0 kernel/entry/common.c:216 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 RIP: 0010:native_irq_disable arch/x86/include/asm/irqflags.h:37 [inline] RIP: 0010:arch_local_irq_disable arch/x86/include/asm/irqflags.h:114 [inline] RIP: 0010:arch_local_irq_save arch/x86/include/asm/irqflags.h:128 [inline] RIP: 0010:lock_is_held_type+0x57/0x150 kernel/locking/lockdep.c:5936 Code: 85 c0 0f 85 ce 00 00 00 65 4c 8b 25 db d9 3c 08 41 8b 94 24 2c 0b 00 00 85 d2 0f 85 b6 00 00 00 48 89 fd 41 89 f6 9c 8f 04 24 48 c7 c7 48 ab bb 8d 4d 8d ac 24 30 0b 00 00 45 31 ff e8 01 19 RSP: 0018:ffffc9000485eb20 EFLAGS: 00000246 RAX: 0000000000000000 RBX: ffff8880791e1e80 RCX: 0000000000000001 RDX: 0000000000000000 RSI: 00000000ffffffff RDI: ffffffff8e427fd8 RBP: ffffffff8e427fd8 R08: 00000000fba2ddc1 R09: 000000001fba2ddc R10: 0000000000000002 R11: ffff8880791e29b0 R12: ffff8880791e1e80 R13: 00000000ffffffff R14: 00000000ffffffff R15: ffff88807cc05800 lock_is_held include/linux/lockdep.h:249 [inline] task_css include/linux/cgroup.h:460 [inline] mem_cgroup_from_task mm/memcontrol.c:885 [inline] get_mem_cgroup_from_mm+0x1da/0x600 mm/memcontrol.c:938 __mem_cgroup_charge+0x1a/0x1e0 mm/memcontrol.c:4744 mem_cgroup_charge include/linux/memcontrol.h:663 [inline] shmem_alloc_and_add_folio+0x50c/0xc20 mm/shmem.c:1942 shmem_get_folio_gfp+0x67f/0x1610 mm/shmem.c:2556 shmem_get_folio mm/shmem.c:2662 [inline] shmem_write_begin+0x1a4/0x3b0 mm/shmem.c:3315 generic_perform_write+0x3c4/0x900 mm/filemap.c:4314 shmem_file_write_iter+0x10e/0x140 mm/shmem.c:3490 __kernel_write_iter+0x31a/0xb10 fs/read_write.c:619 dump_emit_page fs/coredump.c:1298 [inline] dump_user_range+0x413/0xb70 fs/coredump.c:1372 elf_core_dump+0x29c3/0x3c10 fs/binfmt_elf.c:2111 coredump_write fs/coredump.c:1049 [inline] do_coredump fs/coredump.c:1126 [inline] vfs_coredump+0x2b85/0x55e0 fs/coredump.c:1200 get_signal+0x22e1/0x26d0 kernel/signal.c:3019 arch_do_signal_or_restart+0x8f/0x7a0 arch/x86/kernel/signal.c:337 __exit_to_user_mode_loop kernel/entry/common.c:41 [inline] exit_to_user_mode_loop kernel/entry/common.c:75 [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+0x38a/0x8c0 kernel/entry/common.c:196 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:618 RIP: 0033:0x401000 RSP: 002b:000000000000000a EFLAGS: 00010202 RAX: 0000000000000000 RBX: 00007faee7be5fa0 RCX: 00007faee798f7c9 RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000020003b46 RBP: 00007faee7a13f91 R08: 0000000000000002 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007faee7be6038 R14: 00007faee7be5fa0 R15: 00007ffd4f8554b8 net_ratelimit: 11153 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:ee:3b:95:16:53:53, 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:ee:3b:95:16:53:53, 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: 13818 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:ee:3b:95:16:53:53, 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:ee:3b:95:16:53:53, 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)