bridge0: received packet on veth0_to_bridge with own address as source address (addr:22:54:54:9b:f1:2d, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:22:54:54:9b:f1:2d, vlan:0)
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P6494/1:b..l
rcu: (detected by 0, t=10502 jiffies, g=147749, q=334 ncpus=2)
task:kworker/u8:7 state:R running task stack:20880 pid:6494 tgid:6494 ppid:2 task_flags:0x24248060 flags:0x00004000
Workqueue: writeback wb_workfn (flush-8:0)
Call Trace:
context_switch kernel/sched/core.c:5357 [inline]
__schedule+0x1798/0x4cc0 kernel/sched/core.c:6961
preempt_schedule_irq+0xb5/0x150 kernel/sched/core.c:7288
irqentry_exit+0x6f/0x90 kernel/entry/common.c:197
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:stack_trace_consume_entry+0x2c/0x280 kernel/stacktrace.c:86
Code: 1e fa 55 41 57 41 56 41 55 41 54 53 48 83 ec 18 48 ba 00 00 00 00 00 fc ff df 4c 8d 47 10 4c 89 c5 48 c1 ed 03 0f b6 44 15 00 <84> c0 0f 85 09 01 00 00 44 8b 4f 10 4c 8d 77 08 4d 89 f5 49 c1 ed
RSP: 0018:ffffc90002e15778 EFLAGS: 00000216
RAX: 0000000000000000 RBX: ffffc90002e15880 RCX: 6d76cae77c2c5600
RDX: dffffc0000000000 RSI: ffffffff818d41c1 RDI: ffffc90002e15880
RBP: 1ffff920005c2b12 R08: ffffc90002e15890 R09: ffffc90002e15818
R10: dffffc0000000000 R11: ffffffff81ac3760 R12: ffff8880257e8000
R13: ffff888190ed4188 R14: ffffffff81ac3760 R15: ffffc90002e157c8
arch_stack_walk+0x110/0x150 arch/x86/kernel/stacktrace.c:27
stack_trace_save+0x9c/0xe0 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:47 [inline]
kasan_save_track+0x3e/0x80 mm/kasan/common.c:68
unpoison_slab_object mm/kasan/common.c:330 [inline]
__kasan_slab_alloc+0x6c/0x80 mm/kasan/common.c:356
kasan_slab_alloc include/linux/kasan.h:250 [inline]
slab_post_alloc_hook mm/slub.c:4180 [inline]
slab_alloc_node mm/slub.c:4229 [inline]
kmem_cache_alloc_noprof+0x1c1/0x3c0 mm/slub.c:4236
kmem_alloc_batch lib/debugobjects.c:371 [inline]
fill_pool+0x100/0x570 lib/debugobjects.c:403
debug_objects_fill_pool lib/debugobjects.c:725 [inline]
__debug_object_init+0x318/0x3c0 lib/debugobjects.c:737
scsi_init_command+0x1ea/0x370 drivers/scsi/scsi_lib.c:1277
scsi_prepare_cmd drivers/scsi/scsi_lib.c:1659 [inline]
scsi_queue_rq+0x11d0/0x2cc0 drivers/scsi/scsi_lib.c:1849
blk_mq_dispatch_rq_list+0x4c0/0x1900 block/blk-mq.c:2120
__blk_mq_do_dispatch_sched block/blk-mq-sched.c:168 [inline]
blk_mq_do_dispatch_sched block/blk-mq-sched.c:182 [inline]
__blk_mq_sched_dispatch_requests+0xda4/0x1570 block/blk-mq-sched.c:307
blk_mq_sched_dispatch_requests+0xd7/0x190 block/blk-mq-sched.c:329
blk_mq_run_hw_queue+0x404/0x4f0 block/blk-mq.c:2358
blk_mq_dispatch_list+0xd0c/0xe00 include/linux/spinlock.h:-1
blk_mq_flush_plug_list+0x469/0x550 block/blk-mq.c:2967
blk_add_rq_to_plug+0x175/0x450 block/blk-mq.c:1390
blk_mq_submit_bio+0xbcb/0x2520 block/blk-mq.c:3212
__submit_bio+0x207/0x5a0 block/blk-core.c:635
__submit_bio_noacct_mq block/blk-core.c:722 [inline]
submit_bio_noacct_nocheck+0x4ab/0xb50 block/blk-core.c:751
ext4_io_submit fs/ext4/page-io.c:404 [inline]
io_submit_add_bh fs/ext4/page-io.c:445 [inline]
ext4_bio_write_folio+0x1087/0x1f20 fs/ext4/page-io.c:589
mpage_process_page_bufs+0x6d5/0x8e0 fs/ext4/inode.c:2191
mpage_prepare_extent_to_map+0xe6c/0x16e0 fs/ext4/inode.c:2736
ext4_do_writepages+0xba0/0x4610 fs/ext4/inode.c:2877
ext4_writepages+0x205/0x350 fs/ext4/inode.c:3025
do_writepages+0x32e/0x550 mm/page-writeback.c:2634
__writeback_single_inode+0x145/0xff0 fs/fs-writeback.c:1680
writeback_sb_inodes+0x6c7/0x1010 fs/fs-writeback.c:1976
__writeback_inodes_wb+0x111/0x240 fs/fs-writeback.c:2047
wb_writeback+0x44f/0xaf0 fs/fs-writeback.c:2158
wb_check_old_data_flush fs/fs-writeback.c:2262 [inline]
wb_do_writeback fs/fs-writeback.c:2315 [inline]
wb_workfn+0xaef/0xef0 fs/fs-writeback.c:2343
process_one_work kernel/workqueue.c:3236 [inline]
process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3319
worker_thread+0x8a0/0xda0 kernel/workqueue.c:3400
kthread+0x711/0x8a0 kernel/kthread.c:463
ret_from_fork+0x3fc/0x770 arch/x86/kernel/process.c:148
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
rcu: rcu_preempt kthread starved for 1353 jiffies! g147749 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->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:I stack:27496 pid:16 tgid:16 ppid:2 task_flags:0x208040 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5357 [inline]
__schedule+0x1798/0x4cc0 kernel/sched/core.c:6961
preempt_schedule_irq+0xb5/0x150 kernel/sched/core.c:7288
irqentry_exit+0x6f/0x90 kernel/entry/common.c:197
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:add_timer+0x5b/0x90 kernel/time/timer.c:1249
Code: 2b 15 76 00 49 83 3e 00 75 32 e8 d0 ab 12 00 48 8d 7b 10 48 89 f8 48 c1 e8 03 42 80 3c 38 00 74 05 e8 09 15 76 00 48 8b 73 10 <48> 89 df ba 04 00 00 00 5b 41 5e 41 5f e9 d3 ef ff ff e8 9e ab 12
RSP: 0018:ffffc90000157a40 EFLAGS: 00000246
RAX: 1ffff9200002af52 RBX: ffffc90000157a80 RCX: ffff88801cebda00
RDX: 0000000000000000 RSI: 000000010001563f RDI: ffffc90000157a90
RBP: ffffc90000157b50 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: fffffbfff1f47027 R12: 1ffff9200002af4c
R13: 1ffffffff1bc2240 R14: ffffc90000157a88 R15: dffffc0000000000
schedule_timeout+0x126/0x270 kernel/time/sleep_timeout.c:98
rcu_gp_fqs_loop+0x301/0x1540 kernel/rcu/tree.c:2083
rcu_gp_kthread+0x99/0x390 kernel/rcu/tree.c:2285
kthread+0x711/0x8a0 kernel/kthread.c:463
ret_from_fork+0x3fc/0x770 arch/x86/kernel/process.c:148
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 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 56 Comm: kworker/u8:4 Not tainted 6.17.0-rc2-syzkaller #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
Workqueue: events_unbound cfg80211_wiphy_work
RIP: 0010:unwind_next_frame+0x79/0x2390 arch/x86/kernel/unwind_orc.c:471
Code: e8 48 c1 e8 03 48 89 44 24 58 80 3c 28 00 74 08 4c 89 ef e8 79 52 b0 00 4d 8b 7e 38 4d 89 f4 49 c1 ec 03 41 0f b6 04 2c 84 c0 <0f> 85 de 1b 00 00 41 8b 06 85 c0 0f 84 32 02 00 00 89 84 24 84 00
RSP: 0018:ffffc90000a084d8 EFLAGS: 00000046
RAX: 0000000000000000 RBX: ffffffff81adb1ac RCX: b8063c0990e30b00
RDX: dffffc0000000000 RSI: ffffffff81adb1ac RDI: ffffc90000a085a8
RBP: dffffc0000000000 R08: ffffc90000a08670 R09: 0000000000000005
R10: dffffc0000000000 R11: ffffffff81ac3760 R12: 1ffff920001410b5
R13: ffffc90000a085e0 R14: ffffc90000a085a8 R15: ffffc90000a08ca0
FS: 0000000000000000(0000) GS:ffff888125d1b000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5894de67f7 CR3: 000000003cbb1000 CR4: 0000000000350ef0
Call Trace:
arch_stack_walk+0x11c/0x150 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x9c/0xe0 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:47 [inline]
kasan_save_track+0x3e/0x80 mm/kasan/common.c:68
kasan_save_free_info+0x46/0x50 mm/kasan/generic.c:576
poison_slab_object mm/kasan/common.c:243 [inline]
__kasan_slab_free+0x5b/0x80 mm/kasan/common.c:275
kasan_slab_free include/linux/kasan.h:233 [inline]
slab_free_hook mm/slub.c:2417 [inline]
slab_free mm/slub.c:4680 [inline]
kfree+0x18e/0x440 mm/slub.c:4879
dummy_timer+0x801/0x4550 drivers/usb/gadget/udc/dummy_hcd.c:1989
__run_hrtimer kernel/time/hrtimer.c:1761 [inline]
__hrtimer_run_queues+0x52c/0xc60 kernel/time/hrtimer.c:1825
hrtimer_run_softirq+0x187/0x2b0 kernel/time/hrtimer.c:1842
handle_softirqs+0x286/0x870 kernel/softirq.c:579
__do_softirq kernel/softirq.c:613 [inline]
invoke_softirq kernel/softirq.c:453 [inline]
__irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:680
irq_exit_rcu+0x9/0x30 kernel/softirq.c:696
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1050 [inline]
sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1050
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:qlink_to_object mm/kasan/quarantine.c:140 [inline]
RIP: 0010:qlink_free mm/kasan/quarantine.c:145 [inline]
RIP: 0010:qlist_free_all+0x6d/0x140 mm/kasan/quarantine.c:179
Code: 4c 04 08 f6 c1 01 75 53 49 01 c4 0f 1f 44 00 00 41 0f b6 44 24 33 c1 e0 18 3d 00 00 00 f5 4d 0f 45 e5 4d 8b 64 24 08 49 8b 2f <49> 63 84 24 c0 00 00 00 49 29 c7 4c 89 e7 4c 89 fe e8 bd e3 ff ff
RSP: 0018:ffffc900014275b0 EFLAGS: 00000246
RAX: 00000000f5000000 RBX: ffffc900014275e8 RCX: ffff88801a441a00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffff88802fa87800 R08: ffffffff8fa38137 R09: 1ffffffff1f47026
R10: dffffc0000000000 R11: fffffbfff1f47027 R12: ffff88801a441a00
R13: 0000000000000000 R14: 0000000000000000 R15: ffff88802fa87700
kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286
__kasan_kmalloc+0x22/0xb0 mm/kasan/common.c:396
kasan_kmalloc include/linux/kasan.h:260 [inline]
__kmalloc_cache_noprof+0x230/0x3d0 mm/slub.c:4396
kmalloc_noprof include/linux/slab.h:905 [inline]
kmalloc_array_noprof include/linux/slab.h:948 [inline]
cfg80211_sinfo_alloc_tid_stats+0x77/0x100 net/wireless/util.c:2715
sta_set_sinfo+0x1d6a/0x6990 net/mac80211/sta_info.c:3139
__sta_info_destroy_part2+0x306/0x450 net/mac80211/sta_info.c:1546
__sta_info_destroy+0x44/0x50 net/mac80211/sta_info.c:1566
ieee80211_ibss_sta_expire net/mac80211/ibss.c:1250 [inline]
ieee80211_sta_merge_ibss net/mac80211/ibss.c:1268 [inline]
ieee80211_ibss_work+0x824/0x1060 net/mac80211/ibss.c:1665
cfg80211_wiphy_work+0x2bb/0x470 net/wireless/core.c:435
process_one_work kernel/workqueue.c:3236 [inline]
process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3319
worker_thread+0x8a0/0xda0 kernel/workqueue.c:3400
kthread+0x711/0x8a0 kernel/kthread.c:463
ret_from_fork+0x3fc/0x770 arch/x86/kernel/process.c:148
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
net_ratelimit: 10085 callbacks suppressed
bridge0: received packet on veth0_to_bridge with own address as source address (addr:22:54:54:9b:f1:2d, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:22:54:54:9b:f1:2d, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:22:54:54:9b:f1:2d, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:22:54:54:9b:f1:2d, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:22:54:54:9b:f1:2d, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:22:54:54:9b:f1:2d, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:22:54:54:9b:f1:2d, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:22:54:54:9b:f1:2d, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:22:54:54:9b:f1:2d, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:22:54:54:9b:f1:2d, vlan:0)
net_ratelimit: 15047 callbacks suppressed
bridge0: received packet on veth0_to_bridge with own address as source address (addr:22:54:54:9b:f1:2d, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:22:54:54:9b:f1:2d, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:22:54:54:9b:f1:2d, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:22:54:54:9b:f1:2d, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:22:54:54:9b:f1:2d, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:22:54:54:9b:f1:2d, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:22:54:54:9b:f1:2d, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:22:54:54:9b:f1:2d, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:22:54:54:9b:f1:2d, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:22:54:54:9b:f1:2d, vlan:0)