syzbot

rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { P4549 0-.... } 3507 jiffies s: 9661 root: 0x1/T
rcu: blocking rcu_node structures (internal RCU debug):
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 4885 Comm: syz.7.25 Not tainted 6.1.118-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
RIP: 0010:check_preemption_disabled+0x2e/0x110
Code: 41 54 53 48 83 ec 10 65 48 8b 04 25 28 00 00 00 48 89 44 24 08 65 8b 1d d0 8d 5a 75 65 8b 05 71 e3 5a 75 a9 ff ff ff 7f 74 22 <65> 48 8b 04 25 28 00 00 00 48 3b 44 24 08 0f 85 c7 00 00 00 89 d8
RSP: 0018:ffffc90000006cb8 EFLAGS: 00000002
RAX: 0000000000010302 RBX: 0000000000000000 RCX: ffffffff97338103
RDX: 0000000000000000 RSI: ffffffff8b5d77e0 RDI: ffffffff8b5d77a0
RBP: ffff88801dba5940 R08: dffffc0000000000 R09: fffffbfff1d3415e
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8880b8e276e0
R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000010000
FS:  00007fe14820d6c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b33c16ff8 CR3: 0000000058f0a000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 irqtime_account_irq+0x69/0x1e0 kernel/sched/cputime.c:59
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline]
 sysvec_apic_timer_interrupt+0x45/0xc0 arch/x86/kernel/apic/apic.c:1118
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:__memset+0x0/0x30 arch/x86/lib/memset_64.S:27
Code: 66 44 8b 1e 66 44 8b 54 16 fe 66 44 89 1f 66 44 89 54 17 fe eb 0c 48 83 fa 01 72 06 44 8a 1e 44 88 1f c3 48 89 d1 f3 a4 c3 cc <eb> 2e 0f 1f 00 49 89 f9 48 89 d1 83 e2 07 48 c1 e9 03 40 0f b6 f6
RSP: 0018:ffffc90000006df8 EFLAGS: 00000202
RAX: 0000000000000001 RBX: 1ffffffff1ebcdaf RCX: ffffffff813cd307
RDX: 0000000000000010 RSI: 0000000000000000 RDI: ffffc90000006f30
RBP: dffffc0000000000 R08: dffffc0000000000 R09: fffff52000000de8
R10: 0000000000000000 R11: dffffc0000000001 R12: ffffc90000006ee0
R13: ffffffff8f5e6d7c R14: ffffc90000006f15 R15: ffffc90000006f30
 unwind_next_frame+0xde7/0x2220 arch/x86/kernel/unwind_orc.c:546
 arch_stack_walk+0x10d/0x140 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:122
 kasan_save_stack mm/kasan/common.c:45 [inline]
 kasan_set_track+0x4b/0x70 mm/kasan/common.c:52
 kasan_save_free_info+0x27/0x40 mm/kasan/generic.c:516
 ____kasan_slab_free+0xd6/0x120 mm/kasan/common.c:236
 kasan_slab_free include/linux/kasan.h:177 [inline]
 slab_free_hook mm/slub.c:1724 [inline]
 slab_free_freelist_hook mm/slub.c:1750 [inline]
 slab_free mm/slub.c:3661 [inline]
 kmem_cache_free+0x292/0x510 mm/slub.c:3683
 kfree_skb include/linux/skbuff.h:1220 [inline]
 veth_xmit+0x8c2/0xb10 drivers/net/veth.c:325
 __netdev_start_xmit include/linux/netdevice.h:4866 [inline]
 netdev_start_xmit include/linux/netdevice.h:4880 [inline]
 xmit_one net/core/dev.c:3627 [inline]
 dev_hard_start_xmit+0x261/0x8c0 net/core/dev.c:3643
 __dev_queue_xmit+0x1b5d/0x3d50 net/core/dev.c:4301
 neigh_output include/net/neighbour.h:544 [inline]
 ip6_finish_output2+0xee6/0x15f0 net/ipv6/ip6_output.c:138
 __ip6_finish_output net/ipv6/ip6_output.c:205 [inline]
 ip6_finish_output+0x6a0/0xa80 net/ipv6/ip6_output.c:216
 dst_output include/net/dst.h:444 [inline]
 NF_HOOK include/linux/netfilter.h:302 [inline]
 ndisc_send_skb+0xbab/0x14e0 net/ipv6/ndisc.c:511
 addrconf_rs_timer+0x357/0x610 net/ipv6/addrconf.c:3963
 call_timer_fn+0x1ad/0x6b0 kernel/time/timer.c:1504
 expire_timers kernel/time/timer.c:1549 [inline]
 __run_timers+0x67c/0x890 kernel/time/timer.c:1820
 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1833
 handle_softirqs+0x2ee/0xa40 kernel/softirq.c:571
 __do_softirq kernel/softirq.c:605 [inline]
 invoke_softirq kernel/softirq.c:445 [inline]
 __irq_exit_rcu+0x157/0x240 kernel/softirq.c:654
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:666
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline]
 sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1118
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:finish_task_switch+0x1d3/0x810 kernel/sched/core.c:5120
Code: 38 0b 00 48 83 c4 08 4c 89 f7 e8 68 31 00 00 0f 1f 44 00 00 4c 89 f7 e8 4b 7d 52 09 e8 66 f3 31 00 fb 49 8d bc 24 f8 15 00 00 <48> 89 f8 48 c1 e8 03 49 bd 00 00 00 00 00 fc ff df 42 0f b6 04 28
RSP: 0018:ffffc900038dec28 EFLAGS: 00000282
RAX: 119f005b3ea1ae00 RBX: ffff888025b95974 RCX: ffffffff816b024a
RDX: dffffc0000000000 RSI: ffffffff8b0c01c0 RDI: ffff88801dba6f38
RBP: ffffc900038dec70 R08: dffffc0000000000 R09: fffffbfff224625d
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88801dba5940
R13: 1ffff110171c76e3 R14: ffff8880b8e3a9c0 R15: ffff8880b8e3b718
 context_switch kernel/sched/core.c:5244 [inline]
 __schedule+0x1447/0x4570 kernel/sched/core.c:6558
 preempt_schedule_irq+0xf7/0x1c0 kernel/sched/core.c:6870
 irqentry_exit+0x53/0x80 kernel/entry/common.c:439
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:bytes_is_nonzero mm/kasan/generic.c:87 [inline]
RIP: 0010:memory_is_nonzero mm/kasan/generic.c:102 [inline]
RIP: 0010:memory_is_poisoned_n mm/kasan/generic.c:128 [inline]
RIP: 0010:memory_is_poisoned mm/kasan/generic.c:159 [inline]
RIP: 0010:check_region_inline mm/kasan/generic.c:180 [inline]
RIP: 0010:kasan_check_range+0x81/0x290 mm/kasan/generic.c:189
Code: df 4f 8d 34 1a 4c 89 f5 4c 29 cd 48 83 fd 10 7f 26 48 85 ed 0f 84 3a 01 00 00 49 f7 d2 49 01 da 41 80 39 00 0f 85 c4 01 00 00 <49> ff c1 49 ff c2 75 ee e9 1d 01 00 00 45 89 cf 41 83 e7 07 0f 84
RSP: 0018:ffffc900038defb8 EFLAGS: 00000246
RAX: ffffffff97775501 RBX: 1ffff9200071be26 RCX: ffffffff894cfecc
RDX: 0000000000000001 RSI: 0000000000000080 RDI: ffffc900038df130
RBP: 0000000000000010 R08: dffffc0000000000 R09: fffff5200071be2e
R10: fffffffffffffff8 R11: dffffc0000000001 R12: ffff8880773dd5f0
R13: dffffc0000000000 R14: fffff5200071be36 R15: ffff88801a673880
 memset+0x1f/0x40 mm/kasan/shadow.c:44
 inet_diag_dump_icsk+0x7fc/0x1520 net/ipv4/inet_diag.c:1088
 __inet_diag_dump+0x20e/0x3a0 net/ipv4/inet_diag.c:1179
 inet_diag_dump_compat+0x1bd/0x2d0 net/ipv4/inet_diag.c:1288
 netlink_dump+0x5a2/0xca0 net/netlink/af_netlink.c:2233
 __netlink_dump_start+0x521/0x6c0 net/netlink/af_netlink.c:2335
 netlink_dump_start include/linux/netlink.h:269 [inline]
 inet_diag_rcv_msg_compat+0x202/0x4e0 net/ipv4/inet_diag.c:1323
 sock_diag_rcv_msg+0xd5/0x400
 netlink_rcv_skb+0x1cd/0x410 net/netlink/af_netlink.c:2508
 sock_diag_rcv+0x26/0x40 net/core/sock_diag.c:277
 netlink_unicast_kernel net/netlink/af_netlink.c:1326 [inline]
 netlink_unicast+0x7d8/0x970 net/netlink/af_netlink.c:1352
 netlink_sendmsg+0xa26/0xd60 net/netlink/af_netlink.c:1874
 sock_sendmsg_nosec net/socket.c:718 [inline]
 __sock_sendmsg net/socket.c:730 [inline]
 ____sys_sendmsg+0x5a5/0x8f0 net/socket.c:2519
 ___sys_sendmsg net/socket.c:2573 [inline]
 __sys_sendmsg+0x2a9/0x390 net/socket.c:2602
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fe14737e759
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fe14820d038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fe147535f80 RCX: 00007fe14737e759
RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000006
RBP: 00007fe1473f175e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fe147535f80 R15: 00007fff4424ef68
 </TASK>