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): P5857/1:b..l rcu: (detected by 0, t=10503 jiffies, g=8829, q=1533 ncpus=2) task:syz-executor state:R running task stack:20480 pid:5857 tgid:5857 ppid:5845 flags:0x00004002 Call Trace: context_switch kernel/sched/core.c:5369 [inline] __schedule+0x1850/0x4c30 kernel/sched/core.c:6756 preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:7078 irqentry_exit+0x5e/0x90 kernel/entry/common.c:354 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:unwind_next_frame+0x55/0x22d0 arch/x86/kernel/unwind_orc.c:470 Code: e8 03 48 89 44 24 30 42 80 3c 20 00 74 08 48 89 df e8 cf b2 be 00 48 89 5c 24 18 4d 8b 75 48 49 8d 6d 38 48 89 e8 48 c1 e8 03 <48> 89 44 24 58 42 80 3c 20 00 74 08 48 89 ef e8 a7 b2 be 00 49 8b RSP: 0018:ffffc90003f7f0f0 EFLAGS: 00000a06 RAX: 1ffff920007efe4b RBX: ffffc90003f7f268 RCX: 0000000080000000 RDX: dffffc0000000000 RSI: ffffc90003f78000 RDI: ffffc90003f7f220 RBP: ffffc90003f7f258 R08: ffffc90003f7f210 R09: 0000000000000000 R10: ffffc90003f7f270 R11: fffff520007efe50 R12: dffffc0000000000 R13: ffffc90003f7f220 R14: ffffffff81387015 R15: ffffc90003f7f228 __unwind_start+0x59a/0x740 arch/x86/kernel/unwind_orc.c:760 unwind_start arch/x86/include/asm/unwind.h:64 [inline] arch_stack_walk+0xe5/0x150 arch/x86/kernel/stacktrace.c:24 stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122 save_stack+0xfb/0x1f0 mm/page_owner.c:156 __reset_page_owner+0x76/0x430 mm/page_owner.c:297 reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1127 [inline] free_unref_folios+0xf37/0x1a20 mm/page_alloc.c:2704 folios_put_refs+0x76c/0x860 mm/swap.c:962 folio_batch_release include/linux/pagevec.h:101 [inline] shmem_undo_range+0x64c/0x1cf0 mm/shmem.c:1040 shmem_truncate_range mm/shmem.c:1152 [inline] shmem_evict_inode+0x29b/0xa80 mm/shmem.c:1280 evict+0x4e8/0x9a0 fs/inode.c:796 do_unlinkat+0x512/0x830 fs/namei.c:4594 __do_sys_unlink fs/namei.c:4635 [inline] __se_sys_unlink fs/namei.c:4633 [inline] __x64_sys_unlink+0x47/0x50 fs/namei.c:4633 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fa75137f4c7 RSP: 002b:00007fff6c130e38 EFLAGS: 00000206 ORIG_RAX: 0000000000000057 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa75137f4c7 RDX: 00007fff6c130e60 RSI: 00007fff6c130ef0 RDI: 00007fff6c130ef0 RBP: 00007fff6c130ef0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000100 R11: 0000000000000206 R12: 00007fff6c131f70 R13: 00007fa7513f3824 R14: 0000000000011c75 R15: 00007fff6c131fb0 rcu: rcu_preempt kthread starved for 2480 jiffies! g8829 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. rcu: RCU grace-period kthread stack dump: task:rcu_preempt state:R running task stack:25360 pid:17 tgid:17 ppid:2 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:5369 [inline] __schedule+0x1850/0x4c30 kernel/sched/core.c:6756 __schedule_loop kernel/sched/core.c:6833 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6848 schedule_timeout+0x15a/0x290 kernel/time/sleep_timeout.c:99 rcu_gp_fqs_loop+0x2df/0x1330 kernel/rcu/tree.c:2045 rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:2247 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 rcu: Stack dump where RCU GP kthread last ran: Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 24 Comm: ksoftirqd/1 Not tainted 6.12.0-syzkaller-10683-ge8e7be7d212d #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:ieee80211_rx_handlers+0x1944/0xb830 Code: be 4f f6 66 83 fb 04 0f 84 18 01 00 00 83 fb 0c 0f 85 23 01 00 00 e8 bb b8 4f f6 49 bd 00 00 00 00 00 fc ff df e9 e4 05 00 00 <4c> 89 64 24 20 48 8b 5c 24 10 49 89 dc 49 c1 ec 03 43 80 3c 2c 00 RSP: 0018:ffffc900001e7240 EFLAGS: 00000293 RAX: 0000000000000100 RBX: 0000000000000000 RCX: ffff88801d6e8000 RDX: ffff88801d6e8000 RSI: 0000000000000000 RDI: 000000000000000c RBP: ffffc900001e7590 R08: ffffffff8b462b2a R09: 1ffff11004fd21d3 R10: dffffc0000000000 R11: ffffed1004fd21d4 R12: ffff88808f09b280 R13: dffffc0000000000 R14: 1ffff11011e7430a R15: ffff88808f3a1850 FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffade50bff8 CR3: 000000006a056000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ieee80211_invoke_rx_handlers net/mac80211/rx.c:4245 [inline] ieee80211_prepare_and_rx_handle+0x31ab/0x6360 net/mac80211/rx.c:5093 __ieee80211_rx_handle_packet net/mac80211/rx.c:5334 [inline] ieee80211_rx_list+0x2df4/0x3810 net/mac80211/rx.c:5469 ieee80211_rx_napi+0x18a/0x3c0 net/mac80211/rx.c:5492 ieee80211_rx include/net/mac80211.h:5163 [inline] ieee80211_handle_queued_frames+0xe7/0x1e0 net/mac80211/main.c:441 tasklet_action_common+0x426/0x620 kernel/softirq.c:804 handle_softirqs+0x2c5/0x980 kernel/softirq.c:554 run_ksoftirqd+0xca/0x130 kernel/softirq.c:943 smpboot_thread_fn+0x544/0xa30 kernel/smpboot.c:164 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 net_ratelimit: 23802 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:aa:aa:aa:aa:aa:0c, 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 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:fe:24:b0:12:3f:b7, 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:1b, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:fe:24:b0:12:3f:b7, 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 veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) net_ratelimit: 26331 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:aa:aa:aa:aa:aa:0c, 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 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:1b, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:fe:24:b0:12:3f:b7, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:fe:24:b0:12:3f:b7, 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:aa:aa:aa:aa:aa:0c, vlan:0)