RBP: 00000000000f4240 R08: 0000000000000000 R09: 0000555556088610
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd51ea385f0
R13: 00007ffed58cf248 R14: 00007ffed58cf030 R15: 00007ffed58cf020
watchdog: BUG: soft lockup - CPU#1 stuck for 123s! [syz-executor194:293]
Modules linked in:
CPU: 1 PID: 293 Comm: syz-executor194 Not tainted 5.10.188-syzkaller-00574-gd96fc5f29172 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
RIP: 0010:pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:434 [inline]
RIP: 0010:__pv_queued_spin_lock_slowpath+0x5a1/0xc70 kernel/locking/qspinlock.c:508
Code: 85 ba 01 00 00 c6 03 00 48 8b 44 24 28 42 0f b6 04 30 84 c0 0f 85 bf 01 00 00 48 8b 04 24 c6 00 01 bb 00 80 ff ff eb 06 f3 90 <ff> c3 74 50 43 0f b6 44 35 00 84 c0 75 32 41 80 3c 24 00 75 e9 4c
RSP: 0018:ffffc90000b16bc0 EFLAGS: 00000206
RAX: 0000000000000000 RBX: 00000000ffff9a0a RCX: ffffffff8150aa64
RDX: 0000000000000001 RSI: 0000000000000003 RDI: ffffc90000b16b40
RBP: ffffc90000b16cb0 R08: dffffc0000000000 R09: fffffbfff0d9e09e
R10: 0000000000000000 R11: dffffc0000000001 R12: ffffffff86cf04ec
R13: 1ffffffff0d9e09d R14: dffffc0000000000 R15: ffff88823ff52580
FS:  0000555556087380(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000045c370 CR3: 000000011e500000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 </IRQ>
 pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:554 [inline]
 queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:51 [inline]
 queued_spin_lock include/asm-generic/qspinlock.h:85 [inline]
 do_raw_spin_lock include/linux/spinlock.h:183 [inline]
 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:136 [inline]
 _raw_spin_lock_bh+0x139/0x1b0 kernel/locking/spinlock.c:175
 spin_lock_bh include/linux/spinlock.h:359 [inline]
 get_dist_table+0x207/0x2e0 net/sched/sch_netem.c:798
 netem_change+0x974/0x1fb0 net/sched/sch_netem.c:988
 netem_init+0x5b/0xb0 net/sched/sch_netem.c:1075
 qdisc_create+0x879/0x12d0 net/sched/sch_api.c:1264
 tc_modify_qdisc+0x8a4/0x13f0
 rtnetlink_rcv_msg+0x955/0xc50 net/core/rtnetlink.c:5577
 netlink_rcv_skb+0x1cf/0x410 net/netlink/af_netlink.c:2497
 rtnetlink_rcv+0x1c/0x20 net/core/rtnetlink.c:5595
 netlink_unicast_kernel net/netlink/af_netlink.c:1322 [inline]
 netlink_unicast+0x8df/0xac0 net/netlink/af_netlink.c:1348
 netlink_sendmsg+0xa46/0xd00 net/netlink/af_netlink.c:1916
 sock_sendmsg_nosec net/socket.c:652 [inline]
 sock_sendmsg net/socket.c:672 [inline]
 ____sys_sendmsg+0x59e/0x8f0 net/socket.c:2357
 ___sys_sendmsg+0x252/0x2e0 net/socket.c:2411
 __sys_sendmsg net/socket.c:2440 [inline]
 __do_sys_sendmsg net/socket.c:2449 [inline]
 __se_sys_sendmsg+0x1b1/0x280 net/socket.c:2447
 __x64_sys_sendmsg+0x7b/0x90 net/socket.c:2447
 do_syscall_64+0x34/0x70
 entry_SYSCALL_64_after_hwframe+0x61/0xc6
RIP: 0033:0x7fd51e9c5d69
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 19 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffed58cf008 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fd51e9c5d69
RDX: 0000000000000000 RSI: 00000000200001c0 RDI: 0000000000000004
RBP: 00000000000f4240 R08: 0000000000000000 R09: 0000555556088610
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd51ea385f0
R13: 00007ffed58cf248 R14: 00007ffed58cf030 R15: 00007ffed58cf020