bridge0: received packet on veth1_to_bridge with own address as source address (addr:46:a6:d5:b7:31:4c, vlan:0)
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P27317/1:b..l P27313/1:b..l
rcu: (detected by 1, t=10508 jiffies, g=131417, q=2057 ncpus=2)
task:syz.9.4978 state:R running task stack:25608 pid:27313 tgid:27313 ppid:22386 task_flags:0x400040 flags:0x00080002
Call Trace:
context_switch kernel/sched/core.c:5533 [inline]
__schedule+0x17db/0x58f0 kernel/sched/core.c:7284
preempt_schedule_irq+0x4b/0x90 kernel/sched/core.c:7606
irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:539 [inline]
irqentry_exit+0x14f/0x910 kernel/entry/common.c:167
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:__update_page_owner_free_handle+0x225/0x4a0 mm/page_owner.c:310
Code: 24 40 06 00 00 4c 89 f8 48 c1 e8 03 0f b6 04 18 84 c0 0f 85 fd 00 00 00 45 8b 2f 4c 8d 7d 38 4c 89 f8 48 c1 e8 03 0f b6 04 18 <84> c0 0f 85 01 01 00 00 45 89 2f 49 81 c4 44 06 00 00 4c 89 e0 48
RSP: 0018:ffffc900050d73e0 EFLAGS: 00000a02
RAX: 0000000000000000 RBX: dffffc0000000000 RCX: ffffffff8241f815
RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffff88801f4dbdd0
RBP: ffff88801f4dbdd8 R08: ffff88801f4dbdd7 R09: 1ffff11003e9b7ba
R10: dffffc0000000000 R11: ffffed1003e9b7bb R12: ffff888028645dc0
R13: 0000000000006ab1 R14: 0000000000000002 R15: ffff88801f4dbe10
__reset_page_owner+0x85/0x1f0 mm/page_owner.c:339
reset_page_owner include/linux/page_owner.h:26 [inline]
__free_pages_prepare mm/page_alloc.c:1418 [inline]
__free_frozen_pages+0xc93/0xd90 mm/page_alloc.c:2962
__slab_free+0x274/0x2c0 mm/slub.c:5823
qlink_free mm/kasan/quarantine.c:163 [inline]
qlist_free_all+0x99/0x100 mm/kasan/quarantine.c:179
kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286
__kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:350
kasan_slab_alloc include/linux/kasan.h:253 [inline]
slab_post_alloc_hook mm/slub.c:4683 [inline]
slab_alloc_node mm/slub.c:4996 [inline]
kmem_cache_alloc_noprof+0x2b9/0x600 mm/slub.c:5010
alloc_pid+0x1a4/0x1340 kernel/pid.c:188
copy_process+0x212a/0x4400 kernel/fork.c:2326
kernel_clone+0x2d7/0x940 kernel/fork.c:2769
__do_sys_clone3 kernel/fork.c:3072 [inline]
__se_sys_clone3+0x33c/0x360 kernel/fork.c:3051
do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fdde6d9ef49
RSP: 002b:00007ffd85b392e8 EFLAGS: 00000202 ORIG_RAX: 00000000000001b3
RAX: ffffffffffffffda RBX: 00007fdde6d5a4e0 RCX: 00007fdde6d9ef49
RDX: 00007fdde6d5a4e0 RSI: 0000000000000058 RDI: 00007ffd85b39340
RBP: 00007fdde7c046c0 R08: 00007fdde7c046c0 R09: 00007ffd85b39427
R10: 0000000000000008 R11: 0000000000000202 R12: ffffffffffffffe8
R13: 000000000000006e R14: 00007ffd85b39340 R15: 00007ffd85b39428
task:syz.9.4978 state:R running task stack:25480 pid:27317 tgid:27313 ppid:22386 task_flags:0x400140 flags:0x00080002
Call Trace:
context_switch kernel/sched/core.c:5533 [inline]
__schedule+0x17db/0x58f0 kernel/sched/core.c:7284
preempt_schedule_irq+0x4b/0x90 kernel/sched/core.c:7606
irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:539 [inline]
irqentry_exit+0x14f/0x910 kernel/entry/common.c:167
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:kasan_check_range+0x1c8/0x2c0 mm/kasan/generic.c:200
Code: 49 01 dc 4d 01 f3 49 8d 5c 24 07 4d 85 e4 49 0f 49 dc 48 83 e3 f8 49 29 dc 74 0e 41 80 3b 00 75 7c 49 ff c3 49 ff cc 75 f2 5b <41> 5c 41 5d 41 5e 41 5f 5d e9 1a df b1 09 cc 45 84 ff 0f 85 a1 00
RSP: 0018:ffffc90005117750 EFLAGS: 00000256
RAX: ffffc90005117f01 RBX: 0000000000000010 RCX: ffffffff8177fe54
RDX: 0000000000000001 RSI: 0000000000000010 RDI: ffffc90005117898
RBP: 0000000000000000 R08: ffffc900051178a7 R09: 1ffff92000a22f14
R10: dffffc0000000000 R11: fffff52000a22f15 R12: 0000000000000002
R13: ffffffff91bdcc00 R14: fffff52000a22f15 R15: 1ffff92000a22f13
__asan_memset+0x22/0x50 mm/kasan/shadow.c:84
unwind_next_frame+0xd04/0x2550 arch/x86/kernel/unwind_orc.c:621
arch_stack_walk+0x11b/0x150 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0xa9/0x100 kernel/stacktrace.c:122
save_stack+0x122/0x230 mm/page_owner.c:183
__reset_page_owner+0x71/0x1f0 mm/page_owner.c:338
reset_page_owner include/linux/page_owner.h:26 [inline]
__free_pages_prepare mm/page_alloc.c:1418 [inline]
__free_frozen_pages+0xc93/0xd90 mm/page_alloc.c:2962
__slab_free+0x274/0x2c0 mm/slub.c:5823
qlink_free mm/kasan/quarantine.c:163 [inline]
qlist_free_all+0x99/0x100 mm/kasan/quarantine.c:179
kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286
__kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:350
kasan_slab_alloc include/linux/kasan.h:253 [inline]
slab_post_alloc_hook mm/slub.c:4683 [inline]
slab_alloc_node mm/slub.c:4996 [inline]
kmem_cache_alloc_noprof+0x2b9/0x600 mm/slub.c:5010
lsm_inode_alloc security/security.c:254 [inline]
security_inode_alloc+0x39/0x310 security/security.c:1215
inode_init_always_gfp+0x97e/0xd30 fs/inode.c:298
inode_init_always include/linux/fs.h:2965 [inline]
alloc_inode+0x82/0x1b0 fs/inode.c:345
new_inode_pseudo include/linux/fs.h:3044 [inline]
sock_alloc net/socket.c:710 [inline]
__sock_create+0x12d/0x9d0 net/socket.c:1640
sock_create net/socket.c:1734 [inline]
__sys_socket_create net/socket.c:1771 [inline]
__sys_socket+0xd6/0x1b0 net/socket.c:1818
__do_sys_socket net/socket.c:1832 [inline]
__se_sys_socket net/socket.c:1830 [inline]
__x64_sys_socket+0x7a/0x90 net/socket.c:1830
do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fdde6d9e159
RSP: 002b:00007fdde7cca028 EFLAGS: 00000246 ORIG_RAX: 0000000000000029
RAX: ffffffffffffffda RBX: 00007fdde7026090 RCX: 00007fdde6d9e159
RDX: 0000000000000000 RSI: 0800000000000002 RDI: 000000000000000a
RBP: 00007fdde6e3506b R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fdde7026128 R14: 00007fdde7026090 R15: 00007ffd85b39428
rcu: rcu_preempt kthread starved for 580 jiffies! g131417 f0x0 RCU_GP_WAIT_FQS(5) ->state=R ->cpu=0
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:27496 pid:17 tgid:17 ppid:2 task_flags:0x208040 flags:0x00080000
Call Trace:
context_switch kernel/sched/core.c:5533 [inline]
__schedule+0x17db/0x58f0 kernel/sched/core.c:7284
__schedule_loop kernel/sched/core.c:7361 [inline]
schedule+0x164/0x2b0 kernel/sched/core.c:7376
schedule_timeout+0x152/0x2c0 kernel/time/sleep_timeout.c:99
rcu_gp_fqs_loop+0x30c/0x11f0 kernel/rcu/tree.c:2122
rcu_gp_kthread+0x9e/0x2b0 kernel/rcu/tree.c:2330
kthread+0x38b/0x480 kernel/kthread.c:436
ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 8293 Comm: kworker/u8:15 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Workqueue: writeback wb_workfn (flush-8:0)
RIP: 0010:arch_stack_walk+0xf3/0x150 arch/x86/kernel/stacktrace.c:26
Code: 78 ff ff ff 00 00 00 00 48 8d bd 78 ff ff ff 4c 89 e6 4c 89 fa e8 4d a1 09 00 83 bd 78 ff ff ff 00 74 38 4c 8d bd 78 ff ff ff <4c> 89 ff e8 c5 75 09 00 48 85 c0 74 24 48 89 df 48 89 c6 4d 89 f3
RSP: 0018:ffffc9000d62e748 EFLAGS: 00000202
RAX: 00000000f2247501 RBX: ffffc9000d62e800 RCX: 0000000000000046
RDX: ffffc9000d62e701 RSI: ffffffff8e69f109 RDI: ffff88802a9f5dc0
RBP: ffffc9000d62e7d0 R08: ffffc9000d62f640 R09: 0000000000000000
R10: ffffc9000d62e798 R11: fffff52001ac5cf5 R12: ffff88802a9f5dc0
R13: 1ffff1100553ec77 R14: ffffffff81b293f0 R15: ffffc9000d62e748
FS: 0000000000000000(0000) GS:ffff888124cca000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb8e49ec458 CR3: 000000008443e000 CR4: 00000000003526f0
Call Trace:
stack_trace_save+0xa9/0x100 kernel/stacktrace.c:122
save_stack+0x122/0x230 mm/page_owner.c:183
__reset_page_owner+0x71/0x1f0 mm/page_owner.c:338
reset_page_owner include/linux/page_owner.h:26 [inline]
__free_pages_prepare mm/page_alloc.c:1418 [inline]
__free_frozen_pages+0xc93/0xd90 mm/page_alloc.c:2962
__slab_free+0x274/0x2c0 mm/slub.c:5823
qlink_free mm/kasan/quarantine.c:163 [inline]
qlist_free_all+0x99/0x100 mm/kasan/quarantine.c:179
kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286
__kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:350
kasan_slab_alloc include/linux/kasan.h:253 [inline]
slab_post_alloc_hook mm/slub.c:4683 [inline]
slab_alloc_node mm/slub.c:4996 [inline]
kmem_cache_alloc_noprof+0x2b9/0x600 mm/slub.c:5010
ext4_init_io_end+0x29/0x130 fs/ext4/page-io.c:302
ext4_do_writepages+0xb59/0x4770 fs/ext4/inode.c:2879
ext4_writepages+0x241/0x3b0 fs/ext4/inode.c:3032
do_writepages+0x338/0x560 mm/page-writeback.c:2560
__writeback_single_inode+0x136/0x1220 fs/fs-writeback.c:1788
writeback_sb_inodes+0x9de/0x1b00 fs/fs-writeback.c:2099
__writeback_inodes_wb+0x114/0x240 fs/fs-writeback.c:2175
wb_writeback+0x42f/0xad0 fs/fs-writeback.c:2286
wb_check_old_data_flush fs/fs-writeback.c:2390 [inline]
wb_do_writeback fs/fs-writeback.c:2469 [inline]
wb_workfn+0xc92/0x10f0 fs/fs-writeback.c:2497
process_one_work kernel/workqueue.c:3396 [inline]
process_scheduled_works+0xc3d/0x1630 kernel/workqueue.c:3479
worker_thread+0xa47/0xfb0 kernel/workqueue.c:3560
kthread+0x38b/0x480 kernel/kthread.c:436
ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
net_ratelimit: 9749 callbacks suppressed