bridge0: received packet on veth0_to_bridge with own address as source address (addr:ca:19:f7:97:cc:96, vlan:0) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P5817/1:b..l P15791/1:b..l rcu: (detected by 1, t=10503 jiffies, g=82869, q=789 ncpus=2) task:rm state:R running task stack:24624 pid:15791 tgid:15791 ppid:15762 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:__reset_page_owner+0x68/0x430 Code: 00 00 00 00 00 fc ff df 48 8b 05 73 84 97 0c 49 8d 5c 07 08 48 89 d8 48 c1 e8 03 42 0f b6 04 28 84 c0 0f 85 8d 03 00 00 8b 03 <89> 44 24 20 bf 00 28 00 00 e8 ca 03 00 00 41 89 c6 65 48 8b 04 25 RSP: 0018:ffffc90003feee50 EFLAGS: 00000246 RAX: 0000000003900585 RBX: ffff88801d164a00 RCX: ffff8880275bda00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffea000111d4c0 R08: ffffffff821163aa R09: 1ffffffff2854910 R10: dffffc0000000000 R11: fffffbfff2854911 R12: ffffea000111d4c8 R13: dffffc0000000000 R14: 0000000000000000 R15: ffff88801d1649f0 reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1127 [inline] free_unref_page+0xd3f/0x1010 mm/page_alloc.c:2659 discard_slab mm/slub.c:2688 [inline] __put_partials+0x160/0x1c0 mm/slub.c:3157 put_cpu_partial+0x17c/0x250 mm/slub.c:3232 __slab_free+0x290/0x380 mm/slub.c:4483 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x9a/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x23/0x80 mm/kasan/common.c:329 kasan_slab_alloc include/linux/kasan.h:250 [inline] slab_post_alloc_hook mm/slub.c:4119 [inline] slab_alloc_node mm/slub.c:4168 [inline] kmem_cache_alloc_noprof+0x1d9/0x380 mm/slub.c:4175 vma_lock_alloc kernel/fork.c:446 [inline] vm_area_alloc+0x10e/0x1d0 kernel/fork.c:477 __mmap_new_vma mm/vma.c:2340 [inline] __mmap_region+0x1961/0x2d30 mm/vma.c:2456 mmap_region+0x1d0/0x2c0 mm/mmap.c:1348 do_mmap+0x8f0/0x1000 mm/mmap.c:496 vm_mmap_pgoff+0x1dd/0x3d0 mm/util.c:580 elf_map fs/binfmt_elf.c:387 [inline] elf_load+0x151/0x700 fs/binfmt_elf.c:414 load_elf_interp+0x440/0xac0 fs/binfmt_elf.c:681 load_elf_binary+0x1a26/0x2770 fs/binfmt_elf.c:1241 search_binary_handler fs/exec.c:1748 [inline] exec_binprm fs/exec.c:1790 [inline] bprm_execve+0xaf5/0x17a0 fs/exec.c:1842 do_execveat_common+0x55f/0x6f0 fs/exec.c:1949 do_execve fs/exec.c:2023 [inline] __do_sys_execve fs/exec.c:2099 [inline] __se_sys_execve fs/exec.c:2094 [inline] __x64_sys_execve+0x92/0xb0 fs/exec.c:2094 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: 0033:0x7f84b9b44ef7 RSP: 002b:00007ffedf40ea48 EFLAGS: 00000246 ORIG_RAX: 000000000000003b RAX: ffffffffffffffda RBX: 000055ee8375de28 RCX: 00007f84b9b44ef7 RDX: 000055ee8375de48 RSI: 000055ee8375de28 RDI: 000055ee8375ded0 RBP: 000055ee8375ded0 R08: 000055ee8375ded5 R09: 00007ffedf410e52 R10: 0000000000000008 R11: 0000000000000246 R12: 000055ee8375de48 R13: 00007f84b9cf2904 R14: 000055ee8375de48 R15: 0000000000000000 task:syz-executor state:R running task stack:20528 pid:5817 tgid:5817 ppid:5813 flags:0x00004002 Call Trace: context_switch kernel/sched/core.c:5369 [inline] __schedule+0x1850/0x4c30 kernel/sched/core.c:6756 preempt_schedule_common+0x84/0xd0 kernel/sched/core.c:6935 preempt_schedule+0xe1/0xf0 kernel/sched/core.c:6959 preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk.S:12 unwind_next_frame+0x18f8/0x22d0 arch/x86/kernel/unwind_orc.c:672 arch_stack_walk+0x11c/0x150 arch/x86/kernel/stacktrace.c:25 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_page+0xd3f/0x1010 mm/page_alloc.c:2659 discard_slab mm/slub.c:2688 [inline] __put_partials+0x160/0x1c0 mm/slub.c:3157 put_cpu_partial+0x17c/0x250 mm/slub.c:3232 __slab_free+0x290/0x380 mm/slub.c:4483 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x9a/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286 __kasan_kmalloc+0x23/0xb0 mm/kasan/common.c:385 kasan_kmalloc include/linux/kasan.h:260 [inline] __kmalloc_cache_noprof+0x243/0x390 mm/slub.c:4329 kmalloc_noprof include/linux/slab.h:901 [inline] kzalloc_noprof include/linux/slab.h:1037 [inline] alloc_pipe_info+0xeb/0x4d0 fs/pipe.c:798 get_pipe_inode fs/pipe.c:890 [inline] create_pipe_files+0x87/0x700 fs/pipe.c:922 __do_pipe_flags+0x48/0x2d0 fs/pipe.c:973 do_pipe2+0xd4/0x310 fs/pipe.c:1024 __do_sys_pipe2 fs/pipe.c:1042 [inline] __se_sys_pipe2 fs/pipe.c:1040 [inline] __x64_sys_pipe2+0x5a/0x70 fs/pipe.c:1040 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: 0033:0x7fb263584a49 RSP: 002b:00007ffdd9a5e238 EFLAGS: 00000246 ORIG_RAX: 0000000000000125 RAX: ffffffffffffffda RBX: 000055555d3ee620 RCX: 00007fb263584a49 RDX: 0000000000000003 RSI: 0000000000000000 RDI: 00007ffdd9a5e248 RBP: 00007ffdd9a5e600 R08: 0000000000000007 R09: 000055555d41cfb0 R10: f6d83c547c8befa8 R11: 0000000000000246 R12: 000055555d3edc50 R13: 000055555d3ef378 R14: 00007ffdd9a5e380 R15: 000055555d3eb530 rcu: rcu_preempt kthread starved for 5777 jiffies! g82869 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:25232 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: CPU: 1 UID: 0 PID: 24 Comm: ksoftirqd/1 Not tainted 6.13.0-rc5-syzkaller-00006-g56e6a3499e14 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:should_failslab+0x4a/0x100 mm/failslab.c:24 Code: 00 00 00 fc ff df 42 80 3c 20 00 74 0c 48 c7 c7 c8 1a 40 9a e8 97 74 ff ff 31 ed f7 c3 00 80 00 00 75 75 4c 39 35 6e b3 39 18 <74> 6c f7 c3 00 04 00 00 74 09 80 3d 15 a5 9e 0c 00 75 5b 80 3d 0d RSP: 0018:ffffc900001e69d0 EFLAGS: 00000287 RAX: 1ffffffff3480359 RBX: 0000000000000820 RCX: dffffc0000000000 RDX: ffff88801d2f8000 RSI: 0000000000000820 RDI: ffff88801d6ddb40 RBP: 0000000000000000 R08: ffffffff898ff44a R09: 1ffff110348ad6e0 R10: dffffc0000000000 R11: ffffed10348ad6e1 R12: dffffc0000000000 R13: dffffc0000000000 R14: ffff88801d6ddb40 R15: ffff88801d6ddb40 FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000201a5030 CR3: 0000000058cd8000 CR4: 00000000003526f0 DR0: 0000000000000003 DR1: 0000000000000004 DR2: 0000000100000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: slab_pre_alloc_hook mm/slub.c:4072 [inline] slab_alloc_node mm/slub.c:4148 [inline] kmem_cache_alloc_noprof+0x70/0x380 mm/slub.c:4175 skb_ext_maybe_cow net/core/skbuff.c:6942 [inline] skb_ext_add+0x1d6/0x910 net/core/skbuff.c:7016 nf_bridge_unshare net/bridge/br_netfilter_hooks.c:169 [inline] br_nf_forward_ip+0xd8/0x7b0 net/bridge/br_netfilter_hooks.c:712 nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline] nf_hook_slow+0xc3/0x220 net/netfilter/core.c:626 nf_hook include/linux/netfilter.h:269 [inline] NF_HOOK+0x2a7/0x460 include/linux/netfilter.h:312 __br_forward+0x489/0x660 net/bridge/br_forward.c:115 deliver_clone net/bridge/br_forward.c:131 [inline] maybe_deliver+0xb3/0x150 net/bridge/br_forward.c:190 br_flood+0x2e4/0x660 net/bridge/br_forward.c:236 br_handle_frame_finish+0x18ba/0x1fe0 net/bridge/br_input.c:215 br_nf_hook_thresh+0x472/0x590 br_nf_pre_routing_finish_ipv6+0xaa0/0xdd0 NF_HOOK include/linux/netfilter.h:314 [inline] br_nf_pre_routing_ipv6+0x379/0x770 net/bridge/br_netfilter_ipv6.c:184 nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline] nf_hook_bridge_pre net/bridge/br_input.c:277 [inline] br_handle_frame+0x9fd/0x1530 net/bridge/br_input.c:424 __netif_receive_skb_core+0x14eb/0x4690 net/core/dev.c:5566 __netif_receive_skb_one_core net/core/dev.c:5670 [inline] __netif_receive_skb+0x12f/0x650 net/core/dev.c:5785 process_backlog+0x662/0x15b0 net/core/dev.c:6117 __napi_poll+0xcb/0x490 net/core/dev.c:6883 napi_poll net/core/dev.c:6952 [inline] net_rx_action+0x89b/0x1240 net/core/dev.c:7074 handle_softirqs+0x2d4/0x9b0 kernel/softirq.c:561 run_ksoftirqd+0xca/0x130 kernel/softirq.c:950 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 bridge0: received packet on veth0_to_bridge with own address as source address (addr:ca:19:f7:97:cc:96, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:ca:19:f7:97:cc:96, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:ca:19:f7:97:cc:96, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:ca:19:f7:97:cc:96, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:ca:19:f7:97:cc:96, vlan:0) net_ratelimit: 31367 callbacks suppressed bridge0: received packet on veth0_to_bridge with own address as source address (addr:ca:19:f7:97:cc:96, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:ca:19:f7:97:cc:96, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:ca:19:f7:97:cc:96, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:ca:19:f7:97:cc:96, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:ca:19:f7:97:cc:96, vlan:0)