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)
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P7072/1:b..l P7074/1:b..l P5839/1:b..l P2/1:b..l
rcu: (detected by 0, t=10502 jiffies, g=25189, q=304 ncpus=1)
task:kthreadd state:R running task stack:26472 pid:2 tgid:2 ppid:0 task_flags:0x208040 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0x116f/0x5de0 kernel/sched/core.c:6767
preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7090
irqentry_exit+0x36/0x90 kernel/entry/common.c:354
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:rcu_lock_release include/linux/rcupdate.h:341 [inline]
RIP: 0010:rcu_read_unlock include/linux/rcupdate.h:871 [inline]
RIP: 0010:class_rcu_destructor include/linux/rcupdate.h:1155 [inline]
RIP: 0010:unwind_next_frame+0x3e6/0x20a0 arch/x86/kernel/unwind_orc.c:479
Code: c1 ea 03 0f b6 04 02 84 c0 74 08 3c 03 0f 8e 10 15 00 00 41 c7 45 00 00 00 00 00 31 ed e8 c2 07 05 0a 85 c0 0f 85 a7 06 00 00 <48> c7 c7 c0 15 3c 8e 48 8d 35 00 00 00 00 e8 f7 3b 2e 00 e8 12 dc
RSP: 0018:ffffc90000077490 EFLAGS: 00000202
RAX: 0000000000000001 RBX: ffffc90000077d70 RCX: ffffc90000078001
RDX: 0000000000000000 RSI: ffffffff8bf443e0 RDI: ffffffff8dcf1d00
RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000007aa6 R12: ffffc90000077550
R13: ffffc90000077500 R14: ffffc90000077d70 R15: ffffc90000077534
arch_stack_walk+0x94/0x100 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x8e/0xc0 kernel/stacktrace.c:122
save_stack+0x160/0x1f0 mm/page_owner.c:156
__reset_page_owner+0x84/0x1a0 mm/page_owner.c:308
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1262 [inline]
__free_frozen_pages+0x69d/0xff0 mm/page_alloc.c:2680
discard_slab mm/slub.c:2720 [inline]
__put_partials+0x16d/0x1c0 mm/slub.c:3189
qlink_free mm/kasan/quarantine.c:163 [inline]
qlist_free_all+0x4e/0x120 mm/kasan/quarantine.c:179
kasan_quarantine_reduce+0x195/0x1e0 mm/kasan/quarantine.c:286
__kasan_kmalloc+0x8a/0xb0 mm/kasan/common.c:385
kasan_kmalloc include/linux/kasan.h:260 [inline]
__do_kmalloc_node mm/slub.c:4331 [inline]
__kmalloc_noprof+0x223/0x510 mm/slub.c:4343
kmalloc_noprof include/linux/slab.h:909 [inline]
kzalloc_noprof include/linux/slab.h:1039 [inline]
lsm_blob_alloc+0x68/0x90 security/security.c:684
lsm_cred_alloc security/security.c:701 [inline]
security_prepare_creds+0x30/0x270 security/security.c:3241
prepare_creds+0x56f/0x7d0 kernel/cred.c:242
copy_creds+0xa7/0xa50 kernel/cred.c:312
copy_process+0x10b1/0x91a0 kernel/fork.c:2293
kernel_clone+0xfc/0x960 kernel/fork.c:2844
kernel_thread+0xd4/0x120 kernel/fork.c:2906
create_kthread kernel/kthread.c:487 [inline]
kthreadd+0x503/0x800 kernel/kthread.c:847
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:153
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
task:syz-executor state:R running task stack:23096 pid:5839 tgid:5839 ppid:1 task_flags:0x40054c flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0x116f/0x5de0 kernel/sched/core.c:6767
preempt_schedule_common+0x44/0xc0 kernel/sched/core.c:6947
preempt_schedule_thunk+0x16/0x30 arch/x86/entry/thunk.S:12
__raw_read_unlock include/linux/rwlock_api_smp.h:233 [inline]
_raw_read_unlock+0x3e/0x50 kernel/locking/spinlock.c:260
zap_pid_ns_processes+0x26a/0x6d0 kernel/pid_namespace.c:232
find_child_reaper kernel/exit.c:627 [inline]
forget_original_parent kernel/exit.c:716 [inline]
exit_notify kernel/exit.c:753 [inline]
do_exit+0x2517/0x2d10 kernel/exit.c:974
do_group_exit+0xd3/0x2a0 kernel/exit.c:1103
get_signal+0x2673/0x26d0 kernel/signal.c:3036
arch_do_signal_or_restart+0x8f/0x7d0 arch/x86/kernel/signal.c:337
exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0x150/0x2a0 kernel/entry/common.c:218
do_syscall_64+0xda/0x260 arch/x86/entry/syscall_64.c:100
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f6397dbfa25
RSP: 002b:00007ffd63567c70 EFLAGS: 00000293 ORIG_RAX: 00000000000000e6
RAX: 0000000000000000 RBX: 000000000000013f RCX: 00007f6397dbfa25
RDX: 00007ffd63567cb0 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007ffd63567d1c R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000049
R13: 0000000000000056 R14: 0000000000036ef9 R15: 00007ffd63567d70
task:kworker/u8:14 state:R running task stack:23992 pid:7074 tgid:7074 ppid:2 task_flags:0x24248060 flags:0x00004000
Workqueue: writeback wb_workfn (flush-8:0)
Call Trace:
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0x116f/0x5de0 kernel/sched/core.c:6767
preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7090
irqentry_exit+0x36/0x90 kernel/entry/common.c:354
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:lock_release+0x183/0x2f0 kernel/locking/lockdep.c:5891
Code: 0f c1 05 f8 13 0e 12 83 f8 01 0f 85 1d 01 00 00 9c 58 f6 c4 02 0f 85 08 01 00 00 41 f7 c5 00 02 00 00 74 01 fb 48 8b 44 24 10 <65> 48 2b 05 4d d6 0d 12 0f 85 58 01 00 00 48 83 c4 18 5b 41 5c 41
RSP: 0018:ffffc90003c66418 EFLAGS: 00000206
RAX: 2031c3eb76e09a00 RBX: ffffffff8e3c15c0 RCX: ffffc90003c66424
RDX: 0000000000000007 RSI: ffffffff8dbc07df RDI: ffffffff8bf44460
RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000007 R11: 0000000000011f82 R12: ffffffff8169dc34
R13: 0000000000000206 R14: ffff88807edf5a00 R15: 0000000000000008
rcu_lock_release include/linux/rcupdate.h:341 [inline]
rcu_read_unlock include/linux/rcupdate.h:871 [inline]
class_rcu_destructor include/linux/rcupdate.h:1155 [inline]
unwind_next_frame+0x3f9/0x20a0 arch/x86/kernel/unwind_orc.c:479
arch_stack_walk+0x94/0x100 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x8e/0xc0 kernel/stacktrace.c:122
save_stack+0x160/0x1f0 mm/page_owner.c:156
__reset_page_owner+0x84/0x1a0 mm/page_owner.c:308
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1262 [inline]
__free_frozen_pages+0x69d/0xff0 mm/page_alloc.c:2680
discard_slab mm/slub.c:2720 [inline]
__put_partials+0x16d/0x1c0 mm/slub.c:3189
qlink_free mm/kasan/quarantine.c:163 [inline]
qlist_free_all+0x4e/0x120 mm/kasan/quarantine.c:179
kasan_quarantine_reduce+0x195/0x1e0 mm/kasan/quarantine.c:286
__kasan_slab_alloc+0x69/0x90 mm/kasan/common.c:329
kasan_slab_alloc include/linux/kasan.h:250 [inline]
slab_post_alloc_hook mm/slub.c:4151 [inline]
slab_alloc_node mm/slub.c:4200 [inline]
kmem_cache_alloc_noprof+0x1cb/0x3b0 mm/slub.c:4207
journal_alloc_journal_head fs/jbd2/journal.c:2827 [inline]
jbd2_journal_add_journal_head+0x1e5/0x670 fs/jbd2/journal.c:2895
jbd2_journal_get_write_access+0x1c6/0x280 fs/jbd2/transaction.c:1237
__ext4_journal_get_write_access+0x6a/0x340 fs/ext4/ext4_jbd2.c:241
ext4_mb_mark_context+0x1db/0xd40 fs/ext4/mballoc.c:4016
ext4_mb_mark_diskspace_used+0x466/0x8c0 fs/ext4/mballoc.c:4133
ext4_mb_new_blocks+0xa5b/0x4f00 fs/ext4/mballoc.c:6235
ext4_ext_map_blocks+0x1b95/0x5d60 fs/ext4/extents.c:4379
ext4_map_create_blocks fs/ext4/inode.c:519 [inline]
ext4_map_blocks+0x45b/0x1390 fs/ext4/inode.c:705
mpage_map_one_extent fs/ext4/inode.c:2223 [inline]
mpage_map_and_submit_extent fs/ext4/inode.c:2276 [inline]
ext4_do_writepages+0x1a2c/0x3490 fs/ext4/inode.c:2738
ext4_writepages+0x37a/0x7d0 fs/ext4/inode.c:2828
do_writepages+0x1b2/0x820 mm/page-writeback.c:2656
__writeback_single_inode+0x160/0xfb0 fs/fs-writeback.c:1680
writeback_sb_inodes+0x601/0xf90 fs/fs-writeback.c:1976
__writeback_inodes_wb+0xf8/0x2d0 fs/fs-writeback.c:2047
wb_writeback+0x7f3/0xb70 fs/fs-writeback.c:2158
wb_check_background_flush fs/fs-writeback.c:2228 [inline]
wb_do_writeback fs/fs-writeback.c:2316 [inline]
wb_workfn+0x748/0xbe0 fs/fs-writeback.c:2343
process_one_work+0x9cc/0x1b70 kernel/workqueue.c:3238
process_scheduled_works kernel/workqueue.c:3319 [inline]
worker_thread+0x6c8/0xf10 kernel/workqueue.c:3400
kthread+0x3c2/0x780 kernel/kthread.c:464
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:153
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
task:kworker/u8:12 state:R running task stack:28472 pid:7072 tgid:7072 ppid:2 task_flags:0x4208060 flags:0x00004000
Workqueue: kvfree_rcu_reclaim kfree_rcu_work
Call Trace:
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0x116f/0x5de0 kernel/sched/core.c:6767
preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7090
irqentry_exit+0x36/0x90 kernel/entry/common.c:354
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:lock_acquire+0x62/0x350 kernel/locking/lockdep.c:5870
Code: d1 0d 12 83 f8 07 0f 87 bc 02 00 00 89 c0 48 0f a3 05 e2 20 ee 0e 0f 82 74 02 00 00 8b 35 3a 50 ee 0e 85 f6 0f 85 8d 00 00 00 <48> 8b 44 24 30 65 48 2b 05 b9 d0 0d 12 0f 85 c7 02 00 00 48 83 c4
RSP: 0018:ffffc90003fff670 EFLAGS: 00000206
RAX: 0000000000000046 RBX: ffffffff8e3c15c0 RCX: 000000009a9ce699
RDX: 0000000000000000 RSI: ffffffff8dbc07df RDI: ffffffff8bf44460
RBP: 0000000000000002 R08: 3767142bcd9cea52 R09: 0000000000000000
R10: 0000000000000003 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
rcu_read_lock include/linux/rcupdate.h:841 [inline]
class_rcu_constructor include/linux/rcupdate.h:1155 [inline]
unwind_next_frame+0xd1/0x20a0 arch/x86/kernel/unwind_orc.c:479
arch_stack_walk+0x94/0x100 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x8e/0xc0 kernel/stacktrace.c:122
kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
kasan_save_track+0x14/0x30 mm/kasan/common.c:68
kasan_save_free_info+0x3b/0x60 mm/kasan/generic.c:576
poison_slab_object mm/kasan/common.c:247 [inline]
__kasan_slab_free+0x51/0x70 mm/kasan/common.c:264
kasan_slab_free include/linux/kasan.h:233 [inline]
slab_free_hook mm/slub.c:2389 [inline]
slab_free_freelist_hook mm/slub.c:2418 [inline]
slab_free_bulk mm/slub.c:4670 [inline]
kmem_cache_free_bulk.part.0+0x38d/0x7f0 mm/slub.c:5247
kfree_bulk include/linux/slab.h:794 [inline]
kvfree_rcu_bulk+0x1bb/0x1f0 mm/slab_common.c:1516
kfree_rcu_work+0x124/0x1a0 mm/slab_common.c:1594
process_one_work+0x9cc/0x1b70 kernel/workqueue.c:3238
process_scheduled_works kernel/workqueue.c:3319 [inline]
worker_thread+0x6c8/0xf10 kernel/workqueue.c:3400
kthread+0x3c2/0x780 kernel/kthread.c:464
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:153
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
rcu: rcu_preempt kthread starved for 6699 jiffies! g25189 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:27288 pid:16 tgid:16 ppid:2 task_flags:0x208040 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0x116f/0x5de0 kernel/sched/core.c:6767
__schedule_loop kernel/sched/core.c:6845 [inline]
schedule+0xe7/0x3a0 kernel/sched/core.c:6860
schedule_timeout+0x123/0x290 kernel/time/sleep_timeout.c:99
rcu_gp_fqs_loop+0x1ea/0xb00 kernel/rcu/tree.c:2046
rcu_gp_kthread+0x270/0x380 kernel/rcu/tree.c:2248
kthread+0x3c2/0x780 kernel/kthread.c:464
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:153
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: 3405 Comm: kworker/R-bat_e Not tainted 6.14.0-syzkaller-12245-g91e5bfe317d8 #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Workqueue: bat_events batadv_tt_purge
RIP: 0010:memcmp+0x74/0x1d0 lib/string.c:687
Code: 83 c5 01 4c 39 e3 0f 84 25 01 00 00 48 89 d8 48 89 da 48 c1 e8 03 83 e2 07 42 0f b6 04 28 38 d0 7f 08 84 c0 0f 85 2f 01 00 00 <48> 89 ea 48 89 e9 0f b6 03 48 c1 ea 03 83 e1 07 42 0f b6 14 2a 38
RSP: 0018:ffffc90000007700 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffffc9000000782c RCX: 0000000000000000
RDX: 0000000000000004 RSI: 0000000000000001 RDI: ffffc9000000782c
RBP: ffffc9000000781c R08: 0000000000000003 R09: 0000000000000003
R10: 0000000000000003 R11: 0000000000000000 R12: ffffc9000000783c
R13: dffffc0000000000 R14: 00000000000002ff R15: ffff888153433c80
FS: 0000000000000000(0000) GS:ffff8881249c1000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffddda5864c CR3: 0000000065702000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
memcmp include/linux/fortify-string.h:727 [inline]
__flow_hash_consistentify net/core/flow_dissector.c:1783 [inline]
__flow_hash_from_keys+0x88/0x4e0 net/core/flow_dissector.c:1804
fib_multipath_hash_from_keys include/net/ip_fib.h:565 [inline]
rt6_multipath_hash+0x691/0x1840 net/ipv6/route.c:2556
ip6_route_input+0xaa6/0xc00 net/ipv6/route.c:2594
ip6_rcv_finish_core.constprop.0+0x1a0/0x5d0 net/ipv6/ip6_input.c:66
ip6_rcv_finish net/ipv6/ip6_input.c:77 [inline]
NF_HOOK include/linux/netfilter.h:314 [inline]
NF_HOOK include/linux/netfilter.h:308 [inline]
ipv6_rcv+0x1e8/0x680 net/ipv6/ip6_input.c:309
__netif_receive_skb_one_core+0x12d/0x1e0 net/core/dev.c:5891
__netif_receive_skb+0x1d/0x160 net/core/dev.c:6004
process_backlog+0x442/0x15e0 net/core/dev.c:6356
__napi_poll.constprop.0+0xb7/0x550 net/core/dev.c:7328
napi_poll net/core/dev.c:7392 [inline]
net_rx_action+0xa97/0x1010 net/core/dev.c:7514
handle_softirqs+0x216/0x8e0 kernel/softirq.c:579
do_softirq kernel/softirq.c:480 [inline]
do_softirq+0xb2/0xf0 kernel/softirq.c:467
__local_bh_enable_ip+0x100/0x120 kernel/softirq.c:407
spin_unlock_bh include/linux/spinlock.h:396 [inline]
batadv_tt_local_purge+0x21c/0x3c0 net/batman-adv/translation-table.c:1315
batadv_tt_purge+0x8b/0xb80 net/batman-adv/translation-table.c:3509
process_one_work+0x9cc/0x1b70 kernel/workqueue.c:3238
process_scheduled_works kernel/workqueue.c:3319 [inline]
rescuer_thread+0x620/0xea0 kernel/workqueue.c:3496
kthread+0x3c2/0x780 kernel/kthread.c:464
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:153
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
net_ratelimit: 8574 callbacks suppressed
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:f6:40:d6:21:ca:c6, 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:f6:40:d6:21:ca:c6, 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 bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
net_ratelimit: 10023 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:f6:40:d6:21:ca:c6, 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:f6:40:d6:21:ca:c6, 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 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)