rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 0-....: (1 GPs behind) idle=5924/1/0x4000000000000000 softirq=17218/17232 fqs=51
rcu: hardirqs softirqs csw/system
rcu: number: 1051342 0 0
rcu: cputime: 24516 1596 9 ==> 26150(ms)
rcu: (t=10504 jiffies g=16889 q=1211 ncpus=2)
CPU: 0 PID: 6522 Comm: syz.9.65 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/25/2026
RIP: 0010:lock_acquire+0x208/0x420 kernel/locking/lockdep.c:5758
Code: f7 84 24 80 00 00 00 00 02 00 00 43 c6 44 3c 04 f8 0f 85 f0 00 00 00 41 f7 c6 00 02 00 00 74 01 fb 48 c7 44 24 60 0e 36 e0 45 <4b> c7 04 3c 00 00 00 00 43 c7 44 3c 08 00 00 00 00 65 48 8b 04 25
RSP: 0018:ffffc90000006e00 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 0000000000000000 RCX: d7395cc1a8c05d00
RDX: 0000000000000000 RSI: ffffffff8acadce0 RDI: ffffffff8b1cfa20
RBP: ffffc90000006f10 R08: dffffc0000000000 R09: 1ffffffff223cea0
R10: dffffc0000000000 R11: fffffbfff223cea1 R12: 1ffff92000000dcc
R13: ffffffff8d131da0 R14: 0000000000000246 R15: dffffc0000000000
FS: 00007fd0ce8966c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b3121bff8 CR3: 0000000030117000 CR4: 00000000003506f0
DR0: 0000200000000300 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
rcu_lock_acquire include/linux/rcupdate.h:334 [inline]
rcu_read_lock include/linux/rcupdate.h:786 [inline]
is_bpf_text_address+0x47/0x2a0 kernel/bpf/core.c:741
kernel_text_address+0xa0/0xd0 kernel/extable.c:125
__kernel_text_address+0xd/0x30 kernel/extable.c:79
unwind_get_return_address+0x5d/0xc0 arch/x86/kernel/unwind_orc.c:369
arch_stack_walk+0x11d/0x190 arch/x86/kernel/stacktrace.c:26
stack_trace_save+0xaa/0x100 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:46 [inline]
kasan_set_track+0x4e/0x70 mm/kasan/common.c:53
kasan_save_free_info+0x28/0x40 mm/kasan/generic.c:522
____kasan_slab_free+0x126/0x1f0 mm/kasan/common.c:237
kasan_slab_free include/linux/kasan.h:164 [inline]
slab_free_hook mm/slub.c:1811 [inline]
slab_free_freelist_hook+0x130/0x1a0 mm/slub.c:1837
slab_free mm/slub.c:3830 [inline]
__kmem_cache_free+0xba/0x1f0 mm/slub.c:3843
skb_kfree_head net/core/skbuff.c:946 [inline]
skb_free_head net/core/skbuff.c:958 [inline]
skb_release_data+0x609/0x7f0 net/core/skbuff.c:988
skb_release_all net/core/skbuff.c:1054 [inline]
__kfree_skb net/core/skbuff.c:1068 [inline]
consume_skb+0xb2/0x110 net/core/skbuff.c:1284
netlink_broadcast_filtered+0x103c/0x1130 net/netlink/af_netlink.c:1543
netlink_broadcast net/netlink/af_netlink.c:1565 [inline]
nlmsg_multicast include/net/netlink.h:1090 [inline]
nlmsg_notify+0xe3/0x1a0 net/netlink/af_netlink.c:2593
__neigh_notify+0x1ae/0x300 net/core/neighbour.c:3543
neigh_cleanup_and_release+0xa0/0x260 net/core/neighbour.c:102
neigh_del net/core/neighbour.c:226 [inline]
neigh_remove_one+0x5f1/0x700 net/core/neighbour.c:247
neigh_forced_gc net/core/neighbour.c:280 [inline]
neigh_alloc net/core/neighbour.c:486 [inline]
___neigh_create+0x491/0x23d0 net/core/neighbour.c:649
ip6_finish_output2+0x156d/0x1620 net/ipv6/ip6_output.c:132
dst_output include/net/dst.h:467 [inline]
NF_HOOK include/linux/netfilter.h:304 [inline]
ndisc_send_skb+0xbb9/0x1480 net/ipv6/ndisc.c:513
addrconf_rs_timer+0x36b/0x640 net/ipv6/addrconf.c:4029
call_timer_fn+0x189/0x540 kernel/time/timer.c:1701
expire_timers kernel/time/timer.c:1752 [inline]
__run_timers+0x570/0x810 kernel/time/timer.c:2023
run_timer_softirq+0x67/0xf0 kernel/time/timer.c:2036
handle_softirqs+0x27d/0x820 kernel/softirq.c:578
__do_softirq kernel/softirq.c:612 [inline]
invoke_softirq kernel/softirq.c:452 [inline]
__irq_exit_rcu+0xd3/0x190 kernel/softirq.c:661
irq_exit_rcu+0x9/0x20 kernel/softirq.c:673
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1088 [inline]
sysvec_apic_timer_interrupt+0xa4/0xc0 arch/x86/kernel/apic/apic.c:1088
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:687
RIP: 0010:obj_cgroup_charge+0x32e/0x630 mm/memcontrol.c:3397
Code: 84 24 80 00 00 00 f7 84 24 80 00 00 00 00 02 00 00 41 c6 44 1f 08 f8 0f 85 21 01 00 00 41 f7 c4 00 02 00 00 74 01 fb 45 31 e4 <80> 7c 24 14 00 0f 85 a0 00 00 00 48 8b 44 24 18 49 89 c6 49 c1 ee
RSP: 0018:ffffc90003947c40 EFLAGS: 00000246
RAX: d7395cc1a8c05d00 RBX: dffffc0000000000 RCX: d7395cc1a8c05d00
RDX: dffffc0000000000 RSI: ffffffff8acacb60 RDI: ffffffff8b1cfa20
RBP: ffffc90003947d40 R08: ffffffff8e8c6b2f R09: 1ffffffff1d18d65
R10: dffffc0000000000 R11: fffffbfff1d18d66 R12: 0000000000000000
R13: ffff8880b8e37de8 R14: ffff8880b8e37e10 R15: 1ffff92000728f90
memcg_slab_pre_alloc_hook mm/slab.h:508 [inline]
slab_pre_alloc_hook+0x2e2/0x300 mm/slab.h:719
slab_alloc_node mm/slub.c:3477 [inline]
slab_alloc mm/slub.c:3503 [inline]
__kmem_cache_alloc_lru mm/slub.c:3510 [inline]
kmem_cache_alloc_lru+0x4d/0x2b0 mm/slub.c:3526
alloc_inode_sb include/linux/fs.h:2959 [inline]
sock_alloc_inode+0x28/0xc0 net/socket.c:308
alloc_inode fs/inode.c:261 [inline]
new_inode_pseudo+0x63/0x1d0 fs/inode.c:1049
sock_alloc net/socket.c:634 [inline]
__sock_create+0x12d/0x940 net/socket.c:1535
sock_create net/socket.c:1627 [inline]
__sys_socket_create net/socket.c:1664 [inline]
__sys_socket+0xd7/0x1b0 net/socket.c:1715
__do_sys_socket net/socket.c:1729 [inline]
__se_sys_socket net/socket.c:1727 [inline]
__x64_sys_socket+0x7a/0x90 net/socket.c:1727
do_syscall_x64 arch/x86/entry/common.c:46 [inline]
do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:76
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fd0cd99de99
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fd0ce896028 EFLAGS: 00000246 ORIG_RAX: 0000000000000029
RAX: ffffffffffffffda RBX: 00007fd0cdc25fa0 RCX: 00007fd0cd99de99
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000010
RBP: 00007fd0cda33eaf R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fd0cdc26038 R14: 00007fd0cdc25fa0 R15: 00007fff28062cf8