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)
BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=0 stuck for 218s!
BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=-20 stuck for 213s!
Showing busy workqueues and worker pools:
workqueue events: flags=0x0
pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=3/256 refcnt=4
pending: psi_avgs_work, rht_deferred_worker, kfree_rcu_monitor
pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=2/256 refcnt=3
in-flight: 20:fqdir_free_fn
pending: vmstat_shepherd
workqueue events_unbound: flags=0x2
pwq 4: cpus=0-1 flags=0x4 nice=0 active=2/512 refcnt=4
pending: toggle_allocation_gate, flush_memcg_stats_dwork
workqueue events_power_efficient: flags=0x80
pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
pending: neigh_periodic_work
pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=4/256 refcnt=5
pending: gc_worker, wg_ratelimiter_gc_entries, neigh_periodic_work, check_lifetime
workqueue netns: flags=0xe000a
pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/1 refcnt=4
in-flight: 392:cleanup_net
inactive: cleanup_net
workqueue mm_percpu_wq: flags=0x8
pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
pending: vmstat_update
pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
pending: vmstat_update
workqueue writeback: flags=0x4a
pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/256 refcnt=3
pending: wb_workfn
workqueue kblockd: flags=0x18
pwq 3: cpus=1 node=0 flags=0x0 nice=-20 active=1/256 refcnt=2
pending: blk_mq_timeout_work
workqueue dm_bufio_cache: flags=0x8
pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
pending: work_fn
workqueue ipv6_addrconf: flags=0x40008
pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/1 refcnt=2
pending: addrconf_verify_work
workqueue wg-kex-wg0: flags=0x24
pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
in-flight: 593:wg_packet_handshake_receive_worker
workqueue wg-kex-wg0: flags=0x6
pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/256 refcnt=3
pending: wg_packet_handshake_send_worker
workqueue wg-crypt-wg0: flags=0x28
pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
pending: wg_packet_encrypt_worker
pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
pending: wg_packet_encrypt_worker
workqueue wg-crypt-wg1: flags=0x28
pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
pending: wg_packet_encrypt_worker
pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
pending: wg_packet_encrypt_worker
workqueue wg-kex-wg2: flags=0x6
pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/256 refcnt=3
pending: wg_packet_handshake_send_worker
workqueue wg-crypt-wg2: flags=0x28
pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
pending: wg_packet_encrypt_worker
pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
pending: wg_packet_encrypt_worker
workqueue wg-kex-wg0: flags=0x6
pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/256 refcnt=3
pending: wg_packet_handshake_send_worker
workqueue wg-crypt-wg0: flags=0x28
pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
pending: wg_packet_encrypt_worker
pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
pending: wg_packet_encrypt_worker
workqueue wg-kex-wg1: flags=0x6
pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/256 refcnt=3
pending: wg_packet_handshake_send_worker
workqueue wg-crypt-wg1: flags=0x28
pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
pending: wg_packet_encrypt_worker
pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=2/256 refcnt=3
in-flight: 6:wg_packet_encrypt_worker
pending: wg_packet_encrypt_worker
workqueue wg-crypt-wg2: flags=0x28
pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
pending: wg_packet_encrypt_worker
pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
pending: wg_packet_encrypt_worker
workqueue wg-kex-wg0: flags=0x6
pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/256 refcnt=3
pending: wg_packet_handshake_send_worker
workqueue wg-crypt-wg0: flags=0x28
pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
pending: wg_packet_encrypt_worker
pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
pending: wg_packet_encrypt_worker
workqueue wg-kex-wg1: flags=0x6
pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/256 refcnt=3
pending: wg_packet_handshake_send_worker
workqueue wg-crypt-wg1: flags=0x28
pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
pending: wg_packet_encrypt_worker
pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
pending: wg_packet_encrypt_worker
workqueue wg-kex-wg2: flags=0x6
pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/256 refcnt=3
pending: wg_packet_handshake_send_worker
workqueue wg-crypt-wg2: flags=0x28
pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
pending: wg_packet_encrypt_worker
pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=3/256 refcnt=4
in-flight: 1034:wg_packet_tx_worker
pending: wg_packet_decrypt_worker, wg_packet_encrypt_worker
workqueue wg-kex-wg0: flags=0x6
pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/256 refcnt=3
pending: wg_packet_handshake_send_worker
workqueue wg-crypt-wg0: flags=0x28
pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
pending: wg_packet_encrypt_worker
pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=2/256 refcnt=3
in-flight: 590:wg_packet_encrypt_worker
pending: wg_packet_encrypt_worker
workqueue wg-kex-wg1: flags=0x6
pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/256 refcnt=3
pending: wg_packet_handshake_send_worker
workqueue wg-crypt-wg1: flags=0x28
pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
pending: wg_packet_encrypt_worker
pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
pending: wg_packet_encrypt_worker
workqueue wg-kex-wg2: flags=0x6
pwq 4: cpus=0-1 flags=0x4 nice=0 active=2/256 refcnt=4
pending: wg_packet_handshake_send_worker, wg_packet_handshake_send_worker
workqueue wg-kex-wg0: flags=0x6
pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/256 refcnt=3
pending: wg_packet_handshake_send_worker
workqueue wg-crypt-wg0: flags=0x28
pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
pending: wg_packet_encrypt_worker
pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
pending: wg_packet_encrypt_worker
workqueue wg-crypt-wg1: flags=0x28
pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
pending: wg_packet_encrypt_worker
pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
pending: wg_packet_encrypt_worker
workqueue wg-crypt-wg2: flags=0x28
pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
pending: wg_packet_encrypt_worker
pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
pending: wg_packet_encrypt_worker
pool 0: cpus=0 node=0 flags=0x0 nice=0 hung=220s workers=8 idle: 1715 321 60
pool 4: cpus=0-1 flags=0x4 nice=0 hung=219s workers=6 idle: 10 45 1463 309 8
net_ratelimit: 10304 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: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: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: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: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:1b, vlan:0)
rcub/0: page allocation failure: order:0, mode:0xa20(GFP_ATOMIC), nodemask=(null),cpuset=/,mems_allowed=0
CPU: 0 PID: 15 Comm: rcub/0 Tainted: G W syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
Call Trace:
__dump_stack+0x21/0x30 lib/dump_stack.c:88
dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
dump_stack+0x15/0x20 lib/dump_stack.c:113
warn_alloc+0x1dc/0x200 mm/page_alloc.c:4558
__alloc_pages_slowpath+0x2fa5/0x3090 mm/page_alloc.c:5558
__alloc_pages+0x338/0x460 mm/page_alloc.c:5835
alloc_slab_page+0x1c/0x80 mm/slub.c:-1
allocate_slab mm/slub.c:1945 [inline]
new_slab+0x38c/0x4d0 mm/slub.c:2000
___slab_alloc+0x3ac/0x840 mm/slub.c:3033
__slab_alloc+0x49/0x90 mm/slub.c:3120
slab_alloc_node mm/slub.c:3211 [inline]
slab_alloc mm/slub.c:3255 [inline]
kmem_cache_alloc+0x138/0x260 mm/slub.c:3260
skb_clone+0x1c7/0x370 net/core/skbuff.c:1547
deliver_clone net/bridge/br_forward.c:125 [inline]
br_flood+0x387/0x420 net/bridge/br_forward.c:241
br_handle_frame_finish+0xe29/0x1130 net/bridge/br_input.c:180
nf_hook_bridge_pre net/bridge/br_input.c:264 [inline]
br_handle_frame+0x61a/0xfd0 net/bridge/br_input.c:384
__netif_receive_skb_core+0xe6c/0x2fb0 net/core/dev.c:5453
__netif_receive_skb_one_core net/core/dev.c:5557 [inline]
__netif_receive_skb+0x72/0x280 net/core/dev.c:5673
process_backlog+0x351/0x600 net/core/dev.c:6550
__napi_poll+0xbb/0x580 net/core/dev.c:7109
napi_poll net/core/dev.c:7176 [inline]
net_rx_action+0x37f/0x910 net/core/dev.c:7266
handle_softirqs+0x250/0x560 kernel/softirq.c:583
__do_softirq kernel/softirq.c:621 [inline]
invoke_softirq kernel/softirq.c:443 [inline]
__irq_exit_rcu+0x52/0xf0 kernel/softirq.c:670
irq_exit_rcu+0x9/0x10 kernel/softirq.c:682
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
sysvec_apic_timer_interrupt+0xa9/0xc0 arch/x86/kernel/apic/apic.c:1108
asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:__raw_callee_save___kvm_vcpu_is_preempted+0xf/0x20
Code: 10 01 c0 be 0e 00 00 00 e8 0e ba 3d 01 5d c3 00 00 cc cc 00 00 cc cc 00 00 cc cc 48 8b 04 fd 40 88 e9 85 80 b8 50 70 02 00 00 <0f> 95 c0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 55 48 89 e5 41
RSP: 0018:ffffc900000f7c10 EFLAGS: 00000246
RAX: ffff8881f7100000 RBX: ffffffff867a9878 RCX: ffffffff84b2dc4f
RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000001
RBP: ffffc900000f7cb0 R08: ffff8881002fbb47 R09: 1ffff1102005f768
R10: dffffc0000000000 R11: ffffed102005f769 R12: 0000000000000001
R13: dffffc0000000000 R14: ffff8881002fbb40 R15: ffffffff867a9878
__rt_mutex_slowlock kernel/locking/rtmutex.c:1629 [inline]
__rt_mutex_slowlock_locked kernel/locking/rtmutex.c:1662 [inline]
rt_mutex_slowlock+0x186/0x2d0 kernel/locking/rtmutex.c:1691
__rt_mutex_lock kernel/locking/rtmutex.c:1703 [inline]
__rt_mutex_lock_common kernel/locking/rtmutex_api.c:30 [inline]
rt_mutex_lock+0x113/0x1c0 kernel/locking/rtmutex_api.c:66
rcu_boost kernel/rcu/tree_plugin.h:1066 [inline]
rcu_boost_kthread+0x252/0x670 kernel/rcu/tree_plugin.h:1091
kthread+0x3f5/0x4f0 kernel/kthread.c:337
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
Mem-Info:
active_anon:37 inactive_anon:13990 isolated_anon:0
active_file:14056 inactive_file:9172 isolated_file:0
unevictable:0 dirty:75 writeback:0
slab_reclaimable:7473 slab_unreclaimable:1597290
mapped:29199 shmem:2863 pagetables:612 bounce:0
kernel_misc_reclaimable:0
free:17757 free_pcp:17929 free_cma:0
Node 0 active_anon:148kB inactive_anon:55960kB active_file:56224kB inactive_file:36688kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:116796kB dirty:300kB writeback:0kB shmem:11452kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB kernel_stack:4464kB pagetables:2448kB all_unreclaimable? no
DMA32 free:39232kB min:62612kB low:78264kB high:93916kB reserved_highatomic:4096KB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3145324kB managed:2982768kB mlocked:0kB bounce:0kB free_pcp:4680kB local_pcp:4436kB free_cma:0kB
lowmem_reserve[]: 0 3941 3941
Normal free:31796kB min:183144kB low:204352kB high:225560kB reserved_highatomic:0KB active_anon:148kB inactive_anon:55960kB active_file:56224kB inactive_file:36688kB unevictable:0kB writepending:300kB present:5242880kB managed:4036096kB mlocked:0kB bounce:0kB free_pcp:67036kB local_pcp:49796kB free_cma:0kB
lowmem_reserve[]: 0 0 0
DMA32: 4*4kB (UM) 2*8kB (UM) 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 3*128kB (M) 4*256kB (UM) 3*512kB (M) 3*1024kB (M) 2*2048kB
(M) 7*4096kB (M) = 39232kB
Normal: 925*4kB (UME) 520*8kB
(ME) 214*16kB (ME) 85*32kB (ME)
96*64kB (UME) 55*128kB (M) 18*256kB (UM) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 31796kB
26091 total pagecache pages
0 pages in swap cache
Swap cache stats: add 0, delete 0, find 0/0
Free swap = 124996kB
Total swap = 124996kB
2097051 pages RAM
0 pages HighMem/MovableOnly
342335 pages reserved
0 pages cma reserved
SLUB: Unable to allocate memory on node -1, gfp=0xa20(GFP_ATOMIC)
cache: skbuff_head_cache, object size: 248, buffer size: 320, default order: 0, min order: 0
node 0: slabs: 681478, objs: 8177736, free: 0
SLUB: Unable to allocate memory on node -1, gfp=0xa20(GFP_ATOMIC)
cache: skbuff_head_cache, object size: 248, buffer size: 320, default order: 0, min order: 0
node 0: slabs: 681478, objs: 8177736, free: 0
SLUB: Unable to allocate memory on node -1, gfp=0xa20(GFP_ATOMIC)
cache: skbuff_head_cache, object size: 248, buffer size: 320, default order: 0, min order: 0
node 0: slabs: 681478, objs: 8177736, free: 0
SLUB: Unable to allocate memory on node -1, gfp=0xa20(GFP_ATOMIC)
cache: skbuff_head_cache, object size: 248, buffer size: 320, default order: 0, min order: 0
node 0: slabs: 681478, objs: 8177736, free: 0
----------------
Code disassembly (best guess), 1 bytes skipped:
0: 01 c0 add %eax,%eax
2: be 0e 00 00 00 mov $0xe,%esi
7: e8 0e ba 3d 01 call 0x13dba1a
c: 5d pop %rbp
d: c3 ret
e: 00 00 add %al,(%rax)
10: cc int3
11: cc int3
12: 00 00 add %al,(%rax)
14: cc int3
15: cc int3
16: 00 00 add %al,(%rax)
18: cc int3
19: cc int3
1a: 48 8b 04 fd 40 88 e9 mov -0x7a1677c0(,%rdi,8),%rax
21: 85
22: 80 b8 50 70 02 00 00 cmpb $0x0,0x27050(%rax)
* 29: 0f 95 c0 setne %al <-- trapping instruction
2c: c3 ret
2d: 66 2e 0f 1f 84 00 00 cs nopw 0x0(%rax,%rax,1)
34: 00 00 00
37: 0f 1f 00 nopl (%rax)
3a: 55 push %rbp
3b: 48 89 e5 mov %rsp,%rbp
3e: 41 rex.B