bridge0: received packet on veth1_to_bridge with own address as source address (addr:8a:a9:32:d2:89:27, vlan:0)
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P17005/1:b..l
rcu: (detected by 1, t=10508 jiffies, g=96925, q=1850 ncpus=2)
task:syz-executor state:R running task stack:22288 pid:17005 tgid:17005 ppid:16981 task_flags:0x400140 flags:0x00080000
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:orc_ip arch/x86/kernel/unwind_orc.c:81 [inline]
RIP: 0010:__orc_find arch/x86/kernel/unwind_orc.c:103 [inline]
RIP: 0010:orc_find arch/x86/kernel/unwind_orc.c:238 [inline]
RIP: 0010:unwind_next_frame+0x4fb/0x2550 arch/x86/kernel/unwind_orc.c:510
Code: c1 e8 3f 48 01 c8 48 83 e0 fe 49 8d 1c 47 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 0f b6 04 08 84 c0 75 27 48 63 03 <48> 01 d8 48 8d 4b 04 48 39 e8 4c 0f 46 f9 48 8d 43 fc 4c 0f 47 e0
RSP: 0018:ffffc9000322f4a0 EFLAGS: 00000246
RAX: fffffffff18f774d RBX: ffffffff909c807c RCX: dffffc0000000000
RDX: ffffffff909c8078 RSI: ffffffff911fb41a RDI: ffffffff8c6dac20
RBP: ffffffff822bf748 R08: 0000000000000009 R09: 0000000000000000
R10: ffffc9000322f598 R11: ffffffff81b293f0 R12: ffffffff909c8084
R13: ffffffff909c8078 R14: ffffc9000322f548 R15: ffffffff909c8078
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_file_alloc security/security.c:171 [inline]
security_file_alloc+0x34/0x310 security/security.c:2406
init_file+0x90/0x2b0 fs/file_table.c:184
alloc_empty_file+0x74/0x1d0 fs/file_table.c:266
path_openat+0xa2/0x1d60 fs/namei.c:4986
do_file_open+0x23e/0x4a0 fs/namei.c:5029
do_sys_openat2+0x115/0x200 fs/open.c:1417
do_sys_open fs/open.c:1423 [inline]
__do_sys_openat fs/open.c:1439 [inline]
__se_sys_openat fs/open.c:1434 [inline]
__x64_sys_openat+0x138/0x170 fs/open.c:1434
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: 0033:0x7f408fd9d47c
RSP: 002b:00007ffd67262160 EFLAGS: 00000206 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00000000000002fd RCX: 00007f408fd9d47c
RDX: 0000000000090800 RSI: 00007f408fe349ad RDI: 00000000ffffff9c
RBP: 00007ffd6726220c R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000102
R13: 0000000000000000 R14: 0000000000099791 R15: 00007ffd67262260
rcu: rcu_preempt kthread starved for 305 jiffies! g96925 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: 3225 Comm: kworker/R-bat_e Not tainted syzkaller #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
Workqueue: bat_events batadv_tt_purge
RIP: 0010:in_softirq_really kernel/kcov.c:167 [inline]
RIP: 0010:check_kcov_mode kernel/kcov.c:179 [inline]
RIP: 0010:write_comp_data kernel/kcov.c:242 [inline]
RIP: 0010:__sanitizer_cov_trace_const_cmp1+0x31/0xb0 kernel/kcov.c:296
Code: 24 65 48 8b 0d 78 80 cd 11 65 48 8b 15 78 80 cd 11 f7 c2 00 01 00 ff 74 2c 41 89 d0 41 81 e0 00 01 00 0f 41 81 f8 00 01 00 00 <41> 0f 95 c0 81 fa 00 00 00 10 0f 93 c2 44 08 c2 75 5b 83 b9 3c 17
RSP: 0018:ffffc900000070f0 EFLAGS: 00000246
RAX: ffffffff8a926ba0 RBX: ffff8880575c70df RCX: ffff888033a63e80
RDX: 8000000000000101 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 000000000000001b R08: 0000000000000100 R09: ffffc90000007410
R10: ffffc90000007260 R11: fffff52000000e4e R12: 0000000000000003
R13: 0000000000000000 R14: 1ffff1100aeb8e1b R15: 0000000000000001
FS: 0000000000000000(0000) GS:ffff888124cca000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f00cce6ef0b CR3: 000000007e2e6000 CR4: 00000000003526f0
Call Trace:
find_match+0x60/0xb40 net/ipv6/route.c:781
__find_rr_leaf+0x243/0x740 net/ipv6/route.c:873
find_rr_leaf net/ipv6/route.c:894 [inline]
rt6_select net/ipv6/route.c:938 [inline]
fib6_table_lookup+0x3c6/0xae0 net/ipv6/route.c:2261
ip6_pol_route+0x229/0x14d0 net/ipv6/route.c:2298
pol_lookup_func include/net/ip6_fib.h:672 [inline]
__fib6_rule_action net/ipv6/fib6_rules.c:240 [inline]
fib6_rule_action+0x9d8/0xc00 net/ipv6/fib6_rules.c:278
fib_rules_lookup+0x770/0xeb0 net/core/fib_rules.c:338
fib6_rule_lookup+0x19b/0x6e0 net/ipv6/fib6_rules.c:115
ip6_route_input_lookup net/ipv6/route.c:2369 [inline]
ip6_route_input+0x78d/0xb20 net/ipv6/route.c:2672
ip6_rcv_finish+0x141/0x280 net/ipv6/ip6_input.c:117
NF_HOOK+0x336/0x3c0 include/linux/netfilter.h:325
__netif_receive_skb_one_core net/core/dev.c:6265 [inline]
__netif_receive_skb net/core/dev.c:6378 [inline]
process_backlog+0x795/0x18b0 net/core/dev.c:6729
__napi_poll+0xaa/0x330 net/core/dev.c:7798
napi_poll net/core/dev.c:7861 [inline]
net_rx_action+0x61d/0xf50 net/core/dev.c:8018
handle_softirqs+0x226/0x860 kernel/softirq.c:645
do_softirq+0x77/0xd0 kernel/softirq.c:546
__local_bh_enable_ip+0x100/0x140 kernel/softirq.c:473
spin_unlock_bh include/linux/spinlock.h:407 [inline]
batadv_tt_global_purge net/batman-adv/translation-table.c:2390 [inline]
batadv_tt_purge+0x4ae/0xa10 net/batman-adv/translation-table.c:3754
process_one_work kernel/workqueue.c:3396 [inline]
process_scheduled_works+0xc3d/0x1630 kernel/workqueue.c:3479
rescuer_thread+0x7c5/0x10e0 kernel/workqueue.c:3703
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