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)
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P5840/1:b..l P14553/1:b..l P6209/1:b..l P14544/1:b..l P17053/1:b..l P5809/2:b..l P14027/1:b..l P17050/1:b..l
rcu: (detected by 0, t=10502 jiffies, g=121213, q=1162 ncpus=1)
task:syz.1.3760 state:R running task stack:25784 pid:17050 tgid:17050 ppid:14051 task_flags:0x40004c flags:0x00080000
Call Trace:
context_switch kernel/sched/core.c:5295 [inline]
__schedule+0xfee/0x6120 kernel/sched/core.c:6908
preempt_schedule_common+0x42/0xc0 kernel/sched/core.c:7092
preempt_schedule_thunk+0x16/0x30 arch/x86/entry/thunk.S:12
__raw_spin_unlock include/linux/spinlock_api_smp.h:169 [inline]
_raw_spin_unlock+0x3e/0x50 kernel/locking/spinlock.c:186
spin_unlock include/linux/spinlock.h:389 [inline]
zap_pte_range mm/memory.c:1959 [inline]
zap_pmd_range mm/memory.c:2021 [inline]
zap_pud_range mm/memory.c:2049 [inline]
zap_p4d_range mm/memory.c:2070 [inline]
unmap_page_range+0x152f/0x4840 mm/memory.c:2091
unmap_single_vma+0x153/0x240 mm/memory.c:2133
unmap_vmas+0x295/0x590 mm/memory.c:2171
exit_mmap+0x1ef/0xa30 mm/mmap.c:1302
__mmput+0x12a/0x410 kernel/fork.c:1174
mmput+0x67/0x80 kernel/fork.c:1197
exit_mm kernel/exit.c:581 [inline]
do_exit+0x78a/0x2aa0 kernel/exit.c:959
do_group_exit+0xd5/0x2a0 kernel/exit.c:1112
__do_sys_exit_group kernel/exit.c:1123 [inline]
__se_sys_exit_group kernel/exit.c:1121 [inline]
__x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1121
x64_sys_call+0x102c/0x1530 arch/x86/include/generated/asm/syscalls_64.h:232
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x106/0xf80 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd85fd9c799
RSP: 002b:00007fff91b8a6d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fd85fd9c799
RDX: 0000000000000064 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007fff91b8a73c R08: 0000000000000000 R09: 00000000000927c0
R10: 00007fd860016038 R11: 0000000000000246 R12: 0000000000000083
R13: 00000000000927c0 R14: 00000000000b4e55 R15: 00007fff91b8a790
task:syz-executor state:R running task stack:25416 pid:14027 tgid:14027 ppid:5809 task_flags:0x40050c flags:0x00080002
Call Trace:
context_switch kernel/sched/core.c:5295 [inline]
__schedule+0xfee/0x6120 kernel/sched/core.c:6908
preempt_schedule_common+0x42/0xc0 kernel/sched/core.c:7092
preempt_schedule_thunk+0x16/0x30 arch/x86/entry/thunk.S:12
__raw_spin_unlock include/linux/spinlock_api_smp.h:169 [inline]
_raw_spin_unlock+0x3e/0x50 kernel/locking/spinlock.c:186
spin_unlock include/linux/spinlock.h:389 [inline]
zap_pte_range mm/memory.c:1959 [inline]
zap_pmd_range mm/memory.c:2021 [inline]
zap_pud_range mm/memory.c:2049 [inline]
zap_p4d_range mm/memory.c:2070 [inline]
unmap_page_range+0x152f/0x4840 mm/memory.c:2091
unmap_single_vma+0x153/0x240 mm/memory.c:2133
unmap_vmas+0x295/0x590 mm/memory.c:2171
exit_mmap+0x1ef/0xa30 mm/mmap.c:1302
__mmput+0x12a/0x410 kernel/fork.c:1174
mmput+0x67/0x80 kernel/fork.c:1197
exit_mm kernel/exit.c:581 [inline]
do_exit+0x78a/0x2aa0 kernel/exit.c:959
do_group_exit+0xd5/0x2a0 kernel/exit.c:1112
get_signal+0x1ec7/0x21e0 kernel/signal.c:3034
arch_do_signal_or_restart+0x91/0x770 arch/x86/kernel/signal.c:337
__exit_to_user_mode_loop kernel/entry/common.c:64 [inline]
exit_to_user_mode_loop+0x86/0x4a0 kernel/entry/common.c:98
__exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline]
syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:256 [inline]
syscall_exit_to_user_mode include/linux/entry-common.h:325 [inline]
do_syscall_64+0x668/0xf80 arch/x86/entry/syscall_64.c:100
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd85fd57917
RSP: 002b:00007fff91b8a880 EFLAGS: 00000202 ORIG_RAX: 000000000000003d
RAX: fffffffffffffe00 RBX: 0000555559c79500 RCX: 00007fd85fd57917
RDX: 0000000040000000 RSI: 00007fff91b8a8dc RDI: ffffffffffffffff
RBP: 00007fff91b8a8dc R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000008
R13: 0000000000000003 R14: 00007fff91b8ab38 R15: 0000000000000000
task:syz-executor state:R running task stack:22784 pid:5809 tgid:5809 ppid:5808 task_flags:0x400100 flags:0x00080000
Call Trace:
context_switch kernel/sched/core.c:5295 [inline]
__schedule+0xfee/0x6120 kernel/sched/core.c:6908
preempt_schedule_common+0x42/0xc0 kernel/sched/core.c:7092
preempt_schedule_thunk+0x16/0x30 arch/x86/entry/thunk.S:12
__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:179 [inline]
_raw_spin_unlock_irqrestore+0x61/0x80 kernel/locking/spinlock.c:194
spin_unlock_irqrestore include/linux/spinlock.h:407 [inline]
unlock_task_sighand include/linux/sched/signal.h:748 [inline]
do_send_sig_info kernel/signal.c:1270 [inline]
group_send_sig_info+0x2d5/0x300 kernel/signal.c:1419
kill_pid_info_type+0x92/0x290 kernel/signal.c:1459
kill_pid_info kernel/signal.c:1473 [inline]
kill_proc_info+0x6f/0x1b0 kernel/signal.c:1480
kill_something_info+0x2a0/0x310 kernel/signal.c:1577
__do_sys_kill kernel/signal.c:3953 [inline]
__se_sys_kill kernel/signal.c:3947 [inline]
__x64_sys_kill+0x1c4/0x250 kernel/signal.c:3947
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x106/0xf80 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f179233dd27
RSP: 002b:00007ffd1f8ace58 EFLAGS: 00000202 ORIG_RAX: 000000000000003e
RAX: ffffffffffffffda RBX: 000055558dc3c010 RCX: 00007f179233dd27
RDX: 0000000000000003 RSI: 0000000000000009 RDI: 00000000000036cb
RBP: 000055558dc3c010 R08: 000055558dc3c920 R09: 000055558dc3c940
R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffd1f8ace6c
R13: 000055558dc39fd0 R14: 000055558dc3c928 R15: 00007ffd1f8acf20
task:syz.5.3762 state:R running task stack:26536 pid:17053 tgid:17053 ppid:15278 task_flags:0x400040 flags:0x00080000
Call Trace:
context_switch kernel/sched/core.c:5295 [inline]
__schedule+0xfee/0x6120 kernel/sched/core.c:6908
preempt_schedule_irq+0x50/0x90 kernel/sched/core.c:7235
irqentry_exit+0x17b/0x670 kernel/entry/common.c:239
asm_common_interrupt+0x26/0x40 arch/x86/include/asm/idtentry.h:688
RIP: 0010:lock_is_held_type+0xf5/0x140 kernel/locking/lockdep.c:5945
Code: ff ff ff ff 65 0f c1 15 91 48 80 08 83 fa 01 8b 44 24 04 75 2d 9c 5a 80 e6 02 75 47 41 f7 c5 00 02 00 00 74 01 fb 48 83 c4 08 <5b> 5d 41 5c 41 5d 41 5e 41 5f e9 bc 2c 03 00 c3 cc cc cc cc 31 c0
RSP: 0000:ffffc900053af910 EFLAGS: 00000292
RAX: 0000000000000001 RBX: ffffffff8e7e9220 RCX: 0000000000000001
RDX: 0000000000000046 RSI: ffffffff8de55850 RDI: ffffffff8c1af520
RBP: ffff888026660000 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 00000000ffffffff
R13: 0000000000000246 R14: ffff888026660b80 R15: 0000000000000001
xa_entry include/linux/xarray.h:1226 [inline]
xas_reload+0x29a/0x490 include/linux/xarray.h:1624
filemap_get_entry+0x16e/0x3b0 mm/filemap.c:1908
__filemap_get_folio_mpol+0x5d/0xe70 mm/filemap.c:1941
__filemap_get_folio include/linux/pagemap.h:774 [inline]
filemap_get_folio include/linux/pagemap.h:818 [inline]
filemap_fault+0x207/0x2eb0 mm/filemap.c:3528
__do_fault+0x10d/0x550 mm/memory.c:5363
do_shared_fault mm/memory.c:5862 [inline]
do_fault+0x2db/0x1950 mm/memory.c:5936
do_pte_missing mm/memory.c:4477 [inline]
handle_pte_fault mm/memory.c:6316 [inline]
__handle_mm_fault+0x180f/0x2b60 mm/memory.c:6454
handle_mm_fault+0x36d/0xa20 mm/memory.c:6623
do_user_addr_fault+0x5a3/0x12f0 arch/x86/mm/fault.c:1334
handle_page_fault arch/x86/mm/fault.c:1474 [inline]
exc_page_fault+0x6f/0xd0 arch/x86/mm/fault.c:1527
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:618
RIP: 0033:0x7f658a870ec0
RSP: 002b:00007ffdd4bfe630 EFLAGS: 00010202
RAX: 0000001b2ef00000 RBX: ffffffff81d2545b RCX: 0000001b2eeffff8
RDX: 0000001b2eb24220 RSI: 0000000000000008 RDI: 00007f658b745720
RBP: 00000000000000b1 R08: 00007f658ac00000 R09: 00007f658ac02000
R10: 0000000081d2545f R11: 000000000000000e R12: 00007f658ac16038
R13: 00000000000000fa R14: ffffffff81d254de R15: 00007f658b745720
task:udevd state:R running task stack:24680 pid:14544 tgid:14544 ppid:5192 task_flags:0x40014c flags:0x00080000
Call Trace:
context_switch kernel/sched/core.c:5295 [inline]
__schedule+0xfee/0x6120 kernel/sched/core.c:6908
preempt_schedule_irq+0x50/0x90 kernel/sched/core.c:7235
irqentry_exit+0x17b/0x670 kernel/entry/common.c:239
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:lock_acquire+0x5e/0x380 kernel/locking/lockdep.c:5872
Code: 05 bb e9 28 12 83 f8 07 0f 87 f0 00 00 00 48 0f a3 05 86 59 f5 0e 0f 82 c2 02 00 00 8b 35 4e 8d f5 0e 85 f6 0f 85 dd 00 00 00 <48> 8b 44 24 30 65 48 2b 05 5d e9 28 12 0f 85 02 03 00 00 48 83 c4
RSP: 0018:ffffc90003c07620 EFLAGS: 00000206
RAX: 0000000000000046 RBX: 0000000000000000 RCX: 0000000000000001
RDX: 0000000000000000 RSI: ffffffff8de55850 RDI: ffffffff8c1af520
RBP: ffffffff8e7e9220 R08: 00000000dc74a071 R09: 0000000000000007
R10: 0000000000000200 R11: 0000000000000000 R12: 0000000000000002
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
rcu_lock_acquire include/linux/rcupdate.h:312 [inline]
rcu_read_lock include/linux/rcupdate.h:850 [inline]
class_rcu_constructor include/linux/rcupdate.h:1193 [inline]
unwind_next_frame+0xd1/0x1ea0 arch/x86/kernel/unwind_orc.c:495
arch_stack_walk+0x94/0xf0 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x8e/0xc0 kernel/stacktrace.c:122
kasan_save_stack+0x30/0x50 mm/kasan/common.c:57
kasan_save_track+0x14/0x30 mm/kasan/common.c:78
poison_kmalloc_redzone mm/kasan/common.c:398 [inline]
__kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:415
kmalloc_noprof include/linux/slab.h:950 [inline]
slab_free_hook mm/slub.c:2644 [inline]
slab_free mm/slub.c:6143 [inline]
kmem_cache_free+0x41f/0x6a0 mm/slub.c:6273
tear_down_vmas+0x2a5/0x600 mm/mmap.c:1264
exit_mmap+0x469/0xa30 mm/mmap.c:1322
__mmput+0x12a/0x410 kernel/fork.c:1174
mmput+0x67/0x80 kernel/fork.c:1197
exit_mm kernel/exit.c:581 [inline]
do_exit+0x78a/0x2aa0 kernel/exit.c:959
do_group_exit+0xd5/0x2a0 kernel/exit.c:1112
__do_sys_exit_group kernel/exit.c:1123 [inline]
__se_sys_exit_group kernel/exit.c:1121 [inline]
__x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1121
x64_sys_call+0x102c/0x1530 arch/x86/include/generated/asm/syscalls_64.h:232
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x106/0xf80 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd602cf16c5
RSP: 002b:00007ffe28204528 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00005638bd7dbd20 RCX: 00007fd602cf16c5
RDX: 00000000000000e7 RSI: fffffffffffffe68 RDI: 0000000000000000
RBP: 00005638bd5e4910 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe28204570 R14: 0000000000000000 R15: 0000000000000000
task:kworker/u10:2 state:R running task stack:23512 pid:6209 tgid:6209 ppid:2 task_flags:0x24248160 flags:0x00080000
Workqueue: writeback wb_workfn (flush-8:0)
Call Trace:
context_switch kernel/sched/core.c:5295 [inline]
__schedule+0xfee/0x6120 kernel/sched/core.c:6908
preempt_schedule_notrace+0x5f/0xd0 kernel/sched/core.c:7185
preempt_schedule_notrace_thunk+0x16/0x30 arch/x86/entry/thunk.S:13
rcu_is_watching+0x8e/0xc0 kernel/rcu/tree.c:753
trace_lock_acquire include/trace/events/lock.h:24 [inline]
lock_acquire+0x317/0x380 kernel/locking/lockdep.c:5831
rcu_lock_acquire include/linux/rcupdate.h:312 [inline]
rcu_read_lock include/linux/rcupdate.h:850 [inline]
percpu_ref_put_many include/linux/percpu-refcount.h:330 [inline]
percpu_ref_put include/linux/percpu-refcount.h:351 [inline]
blk_mq_dispatch_list+0x56c/0x1360 block/blk-mq.c:2953
blk_mq_flush_plug_list block/blk-mq.c:2997 [inline]
blk_mq_flush_plug_list+0x130/0x600 block/blk-mq.c:2969
__blk_flush_plug+0x2c4/0x4b0 block/blk-core.c:1230
blk_flush_plug include/linux/blkdev.h:1205 [inline]
sched_submit_work kernel/sched/core.c:6969 [inline]
schedule+0x2b1/0x390 kernel/sched/core.c:7004
wait_transaction_locked+0x1a1/0x230 fs/jbd2/transaction.c:152
add_transaction_credits+0x110/0xe60 fs/jbd2/transaction.c:222
start_this_handle+0x3de/0x13a0 fs/jbd2/transaction.c:403
jbd2__journal_start+0x394/0x6a0 fs/jbd2/transaction.c:501
__ext4_journal_start_sb+0x382/0x6a0 fs/ext4/ext4_jbd2.c:114
__ext4_journal_start fs/ext4/ext4_jbd2.h:242 [inline]
ext4_do_writepages+0xc1c/0x3f50 fs/ext4/inode.c:2907
ext4_writepages+0x347/0x790 fs/ext4/inode.c:3019
do_writepages+0x278/0x600 mm/page-writeback.c:2554
__writeback_single_inode+0x164/0x13c0 fs/fs-writeback.c:1750
writeback_sb_inodes+0x766/0x1c70 fs/fs-writeback.c:2042
__writeback_inodes_wb+0xf8/0x2d0 fs/fs-writeback.c:2118
wb_writeback+0x755/0xbe0 fs/fs-writeback.c:2229
wb_check_old_data_flush fs/fs-writeback.c:2333 [inline]
wb_do_writeback fs/fs-writeback.c:2386 [inline]
wb_workfn+0x8c6/0xc00 fs/fs-writeback.c:2414
process_one_work+0x9d7/0x1920 kernel/workqueue.c:3275
process_scheduled_works kernel/workqueue.c:3358 [inline]
worker_thread+0x5da/0xe40 kernel/workqueue.c:3439
kthread+0x370/0x450 kernel/kthread.c:467
ret_from_fork+0x754/0xd80 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
task:udevd state:R running task stack:24680 pid:14553 tgid:14553 ppid:5192 task_flags:0x40014c flags:0x00080000
Call Trace:
context_switch kernel/sched/core.c:5295 [inline]
__schedule+0xfee/0x6120 kernel/sched/core.c:6908
preempt_schedule_irq+0x50/0x90 kernel/sched/core.c:7235
irqentry_exit+0x17b/0x670 kernel/entry/common.c:239
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:unwind_next_frame+0x59e/0x1ea0 arch/x86/kernel/unwind_orc.c:530
Code: 83 e2 07 41 83 e7 01 38 d0 7f 08 84 c0 0f 85 ca 12 00 00 45 88 7d 35 44 0f b6 71 04 41 83 e6 0f 41 80 fe 06 0f 84 ef 0a 00 00 <0f> 87 f3 01 00 00 41 80 fe 04 0f 84 58 0a 00 00 41 80 fe 05 0f 84
RSP: 0018:ffffc90003e4f3b8 EFLAGS: 00000297
RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff9185d50a
RDX: 0000000000000005 RSI: 0000000000000001 RDI: ffffffff90fae798
RBP: ffffc90003e4f470 R08: ffffffff9185d50e R09: 0000000000000007
R10: 0000000000000200 R11: 0000000000016545 R12: ffffc90003e4f478
R13: ffffc90003e4f428 R14: 0000000000000005 R15: 0000000000000000
arch_stack_walk+0x94/0xf0 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x8e/0xc0 kernel/stacktrace.c:122
save_stack+0x162/0x1e0 mm/page_owner.c:165
__reset_page_owner+0x84/0x190 mm/page_owner.c:320
reset_page_owner include/linux/page_owner.h:25 [inline]
__free_pages_prepare mm/page_alloc.c:1433 [inline]
free_unref_folios+0xaea/0x1790 mm/page_alloc.c:3040
folios_put_refs+0x53c/0x840 mm/swap.c:1002
free_pages_and_swap_cache+0x242/0x480 mm/swap_state.c:423
__tlb_batch_free_encoded_pages+0xe9/0x280 mm/mmu_gather.c:138
tlb_batch_pages_flush mm/mmu_gather.c:151 [inline]
tlb_flush_mmu_free mm/mmu_gather.c:398 [inline]
tlb_flush_mmu mm/mmu_gather.c:405 [inline]
tlb_finish_mmu+0x1b0/0x810 mm/mmu_gather.c:530
exit_mmap+0x454/0xa30 mm/mmap.c:1315
__mmput+0x12a/0x410 kernel/fork.c:1174
mmput+0x67/0x80 kernel/fork.c:1197
exit_mm kernel/exit.c:581 [inline]
do_exit+0x78a/0x2aa0 kernel/exit.c:959
do_group_exit+0xd5/0x2a0 kernel/exit.c:1112
__do_sys_exit_group kernel/exit.c:1123 [inline]
__se_sys_exit_group kernel/exit.c:1121 [inline]
__x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1121
x64_sys_call+0x102c/0x1530 arch/x86/include/generated/asm/syscalls_64.h:232
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x106/0xf80 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd602cf16c5
RSP: 002b:00007ffe28204528 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00005638bd5f8fa0 RCX: 00007fd602cf16c5
RDX: 00000000000000e7 RSI: fffffffffffffe68 RDI: 0000000000000000
RBP: 00005638bd5e4910 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe28204570 R14: 0000000000000000 R15: 0000000000000000
task:udevd state:R running task stack:24680 pid:5840 tgid:5840 ppid:5192 task_flags:0x40014c flags:0x00080000
Call Trace:
context_switch kernel/sched/core.c:5295 [inline]
__schedule+0xfee/0x6120 kernel/sched/core.c:6908
preempt_schedule_irq+0x50/0x90 kernel/sched/core.c:7235
irqentry_exit+0x17b/0x670 kernel/entry/common.c:239
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:debug_lockdep_rcu_enabled+0x26/0x40 kernel/rcu/update.c:320
Code: 90 90 90 90 f3 0f 1e fa 8b 05 82 71 4c 05 85 c0 74 20 8b 05 60 a4 4c 05 85 c0 74 16 65 48 8b 05 88 00 80 08 8b 80 54 0b 00 00 <85> c0 0f 94 c0 0f b6 c0 e9 3d 2c 03 00 66 2e 0f 1f 84 00 00 00 00
RSP: 0018:ffffc90003f57688 EFLAGS: 00000202
RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000001
RDX: 0000000000000000 RSI: ffffffff8de55850 RDI: ffffffff8c1af520
RBP: ffffc90003f57750 R08: 00000000dc74a071 R09: 0000000000000007
R10: 0000000000000200 R11: 0000000000000000 R12: ffffffff81f2bb70
R13: ffffc90003f57708 R14: 0000000000000000 R15: ffff88807cba3d00
rcu_read_lock include/linux/rcupdate.h:851 [inline]
class_rcu_constructor include/linux/rcupdate.h:1193 [inline]
unwind_next_frame+0xd6/0x1ea0 arch/x86/kernel/unwind_orc.c:495
arch_stack_walk+0x94/0xf0 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x8e/0xc0 kernel/stacktrace.c:122
kasan_save_stack+0x30/0x50 mm/kasan/common.c:57
kasan_save_track+0x14/0x30 mm/kasan/common.c:78
poison_kmalloc_redzone mm/kasan/common.c:398 [inline]
__kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:415
kmalloc_noprof include/linux/slab.h:950 [inline]
slab_free_hook mm/slub.c:2644 [inline]
slab_free mm/slub.c:6143 [inline]
kmem_cache_free+0x41f/0x6a0 mm/slub.c:6273
tear_down_vmas+0x2a5/0x600 mm/mmap.c:1264
exit_mmap+0x469/0xa30 mm/mmap.c:1322
__mmput+0x12a/0x410 kernel/fork.c:1174
mmput+0x67/0x80 kernel/fork.c:1197
exit_mm kernel/exit.c:581 [inline]
do_exit+0x78a/0x2aa0 kernel/exit.c:959
do_group_exit+0xd5/0x2a0 kernel/exit.c:1112
__do_sys_exit_group kernel/exit.c:1123 [inline]
__se_sys_exit_group kernel/exit.c:1121 [inline]
__x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1121
x64_sys_call+0x102c/0x1530 arch/x86/include/generated/asm/syscalls_64.h:232
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x106/0xf80 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd602cf16c5
RSP: 002b:00007ffe28204528 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00005638bd6057d0 RCX: 00007fd602cf16c5
RDX: 00000000000000e7 RSI: fffffffffffffe68 RDI: 0000000000000000
RBP: 00005638bd5e4910 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe28204570 R14: 0000000000000000 R15: 0000000000000000
task:syz.1.3747 state:R running task stack:23760 pid:17005 tgid:17005 ppid:14051 task_flags:0x400640 flags:0x00080000
Call Trace:
context_switch kernel/sched/core.c:5295 [inline]
__schedule+0xfee/0x6120 kernel/sched/core.c:6908
preempt_schedule_irq+0x50/0x90 kernel/sched/core.c:7235
irqentry_exit+0x17b/0x670 kernel/entry/common.c:239
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:mtree_range_walk+0x523/0xcd0 lib/maple_tree.c:2568
Code: ff e8 51 1b 84 f6 e8 4c 1b 84 f6 0f b6 5c 24 08 bf 01 00 00 00 89 de e8 8b 15 84 f6 80 fb 01 0f 86 f8 04 00 00 48 8b 44 24 18 01 00 00 00 48 8d 68 08 eb 2b e8 1d 1b 84 f6 41 83 c6 01 48 83
RSP: 0018:ffffc900046f6c78 EFLAGS: 00000202
RAX: ffff88807e612a08 RBX: 0000000000000008 RCX: ffffffff8b83f385
RDX: 0000000000000008 RSI: 0000000000000001 RDI: ffff88807d771e80
RBP: ffff88807e612a78 R08: 0000000000000001 R09: 0000000000000001
R10: 0000000000000008 R11: 0000000000000000 R12: 000000110ce43000
R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000020fff
mas_state_walk lib/maple_tree.c:3298 [inline]
mt_find+0x1c6/0x8e0 lib/maple_tree.c:6497
find_vma+0xbf/0x140 mm/mmap.c:907
gup_vma_lookup+0x20/0x170 mm/gup.c:1275
__get_user_pages+0x241/0x34d0 mm/gup.c:1396
__get_user_pages_locked mm/gup.c:1692 [inline]
get_dump_page+0x27e/0x3d0 mm/gup.c:2192
dump_user_range+0x18d/0xb50 fs/coredump.c:1367
elf_core_dump+0x2d5f/0x3d10 fs/binfmt_elf.c:2110
coredump_write fs/coredump.c:1050 [inline]
do_coredump fs/coredump.c:1127 [inline]
vfs_coredump+0x27bc/0x5570 fs/coredump.c:1201
get_signal+0x1f2a/0x21e0 kernel/signal.c:3019
arch_do_signal_or_restart+0x91/0x770 arch/x86/kernel/signal.c:337
__exit_to_user_mode_loop kernel/entry/common.c:64 [inline]
exit_to_user_mode_loop kernel/entry/common.c:98 [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+0x1f8/0x670 kernel/entry/common.c:219
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:618
RIP: 0033:0x100000
RSP: 002b:000000000000000a EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007fd860015fa0 RCX: 00007fd85fd9c799
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000021003b46
RBP: 00007fd85fe32bd9 R08: 0000000000000006 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fd860016038 R14: 00007fd860015fa0 R15: 00007fff91b8a398
rcu: rcu_preempt kthread starved for 1019 jiffies! g121213 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->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:27736 pid:16 tgid:16 ppid:2 task_flags:0x208040 flags:0x00080000
Call Trace:
context_switch kernel/sched/core.c:5295 [inline]
__schedule+0xfee/0x6120 kernel/sched/core.c:6908
__schedule_loop kernel/sched/core.c:6990 [inline]
schedule+0xdd/0x390 kernel/sched/core.c:7005
schedule_timeout+0x127/0x280 kernel/time/sleep_timeout.c:99
rcu_gp_fqs_loop+0x1a9/0x900 kernel/rcu/tree.c:2095
rcu_gp_kthread+0x179/0x230 kernel/rcu/tree.c:2297
kthread+0x370/0x450 kernel/kthread.c:467
ret_from_fork+0x754/0xd80 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:
CPU: 0 UID: 0 PID: 3408 Comm: kworker/R-bat_e Tainted: G U L syzkaller #0 PREEMPT(full)
Tainted: [U]=USER, [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
Workqueue: bat_events batadv_tt_purge
RIP: 0010:lockdep_enabled kernel/locking/lockdep.c:124 [inline]
RIP: 0010:lock_acquire kernel/locking/lockdep.c:5844 [inline]
RIP: 0010:lock_acquire+0x173/0x380 kernel/locking/lockdep.c:5825
Code: 0d 56 8c f5 0e 85 c9 0f 84 bd 00 00 00 65 8b 05 eb 2f 29 12 85 c0 0f 85 ae 00 00 00 65 48 8b 05 6b e8 28 12 8b 90 54 0b 00 00 <85> d2 0f 85 98 00 00 00 9c 8f 04 24 fa 48 c7 c7 77 d0 f6 8d e8 44
RSP: 0018:ffffc90000006c58 EFLAGS: 00000246
RAX: ffff888034b45b80 RBX: 0000000000000000 RCX: 0000000000000001
RDX: 0000000000000000 RSI: ffffffff81b7aaf1 RDI: fffffbfff1cfd244
RBP: ffffffff8e7e9220 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000200 R11: 0000000000095ae1 R12: 0000000000000002
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff88812434c000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1790885740 CR3: 00000000402de000 CR4: 00000000003526f0
Call Trace:
rcu_lock_acquire include/linux/rcupdate.h:312 [inline]
rcu_read_lock include/linux/rcupdate.h:850 [inline]
class_rcu_constructor include/linux/rcupdate.h:1193 [inline]
unwind_next_frame+0xd1/0x1ea0 arch/x86/kernel/unwind_orc.c:495
arch_stack_walk+0x94/0xf0 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x8e/0xc0 kernel/stacktrace.c:122
kasan_save_stack+0x30/0x50 mm/kasan/common.c:57
kasan_save_track+0x14/0x30 mm/kasan/common.c:78
unpoison_slab_object mm/kasan/common.c:340 [inline]
__kasan_slab_alloc+0x89/0x90 mm/kasan/common.c:366
kasan_slab_alloc include/linux/kasan.h:253 [inline]
slab_post_alloc_hook mm/slub.c:4515 [inline]
slab_alloc_node mm/slub.c:4844 [inline]
kmem_cache_alloc_noprof+0x241/0x6e0 mm/slub.c:4851
skb_ext_maybe_cow net/core/skbuff.c:7092 [inline]
skb_ext_add+0xfa/0x810 net/core/skbuff.c:7167
nf_bridge_unshare net/bridge/br_netfilter_hooks.c:169 [inline]
br_nf_forward_ip.part.0+0x28/0x820 net/bridge/br_netfilter_hooks.c:681
br_nf_forward_ip net/bridge/br_netfilter_hooks.c:676 [inline]
br_nf_forward+0xfe5/0x19f0 net/bridge/br_netfilter_hooks.c:773
nf_hook_entry_hookfn include/linux/netfilter.h:158 [inline]
nf_hook_slow+0xbf/0x220 net/netfilter/core.c:623
nf_hook include/linux/netfilter.h:273 [inline]
NF_HOOK include/linux/netfilter.h:316 [inline]
__br_forward+0x2f6/0x970 net/bridge/br_forward.c:115
deliver_clone net/bridge/br_forward.c:131 [inline]
maybe_deliver+0xf0/0x180 net/bridge/br_forward.c:191
br_flood+0x193/0x650 net/bridge/br_forward.c:238
br_handle_frame_finish+0xf57/0x1f00 net/bridge/br_input.c:229
br_nf_hook_thresh+0x30d/0x420 net/bridge/br_netfilter_hooks.c:1167
br_nf_pre_routing_finish_ipv6+0x769/0xfb0 net/bridge/br_netfilter_ipv6.c:154
NF_HOOK include/linux/netfilter.h:318 [inline]
br_nf_pre_routing_ipv6+0x39c/0x8b0 net/bridge/br_netfilter_ipv6.c:184
br_nf_pre_routing+0x93b/0x1510 net/bridge/br_netfilter_hooks.c:508
nf_hook_entry_hookfn include/linux/netfilter.h:158 [inline]
nf_hook_bridge_pre net/bridge/br_input.c:291 [inline]
br_handle_frame+0xcdd/0x1520 net/bridge/br_input.c:442
__netif_receive_skb_core.constprop.0+0x6c5/0x3550 net/core/dev.c:6054
__netif_receive_skb_one_core+0xb0/0x1e0 net/core/dev.c:6165
__netif_receive_skb+0x1f/0x120 net/core/dev.c:6280
process_backlog+0x37a/0x1580 net/core/dev.c:6631
__napi_poll.constprop.0+0xaf/0x450 net/core/dev.c:7695
napi_poll net/core/dev.c:7758 [inline]
net_rx_action+0xa40/0xf20 net/core/dev.c:7910
handle_softirqs+0x1eb/0x9e0 kernel/softirq.c:622
do_softirq kernel/softirq.c:523 [inline]
do_softirq+0xac/0xe0 kernel/softirq.c:510
__local_bh_enable_ip+0xf8/0x120 kernel/softirq.c:450
spin_unlock_bh include/linux/spinlock.h:395 [inline]
batadv_tt_local_purge+0x21c/0x3d0 net/batman-adv/translation-table.c:1315
batadv_tt_purge+0x8b/0xbd0 net/batman-adv/translation-table.c:3509
process_one_work+0x9d7/0x1920 kernel/workqueue.c:3275
process_scheduled_works kernel/workqueue.c:3358 [inline]
rescuer_thread+0x902/0x1490 kernel/workqueue.c:3582
kthread+0x370/0x450 kernel/kthread.c:467
ret_from_fork+0x754/0xd80 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
net_ratelimit: 7439 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:fa:86:93:58:99:17, 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:fa:86:93:58:99:17, 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:fa:86:93:58:99:17, vlan:0)
net_ratelimit: 6405 callbacks suppressed
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:fa:86:93:58:99:17, 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:fa:86:93:58:99:17, 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)