RBP: 00007f0be2cdee6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f0be2ec2038 R14: 00007f0be2ec1fa0 R15: 00007ffd5639e1a8
 </TASK>
watchdog: BUG: soft lockup - CPU#1 stuck for 222s! [syz.3.1439:5507]
Modules linked in:
CPU: 1 PID: 5507 Comm: syz.3.1439 Tainted: G        W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x60 kernel/kcov.c:199
Code: 00 00 00 0f 0b 0f 1f 44 00 00 55 48 89 e5 53 48 89 fb e8 13 00 00 00 48 8b 3d 9c 98 7f 05 48 89 de e8 34 a9 3e 00 5b 5d c3 00 <55> 48 89 e5 48 8b 45 08 65 48 8b 0d c0 c1 98 7e 65 8b 15 c1 c1 98
RSP: 0018:ffffc90000f0ed80 EFLAGS: 00000202
RAX: ffffffff83da2e01 RBX: 00000000ffff0000 RCX: ffff888139393b01
RDX: 0000000000000002 RSI: 00000000ffff0000 RDI: 0000000000000000
RBP: ffffc90000f0edb8 R08: 1ffff11025179812 R09: 1ffff11025179801
R10: dffffc0000000000 R11: fffff520001e1db4 R12: 0000000000000000
R13: dffffc0000000000 R14: ffffffff86d40100 R15: 0000000000000000
FS:  00007f0be16a36c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c303c4c CR3: 0000000119d77000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 qdisc_tree_reduce_backlog+0x10b/0x380 net/sched/sch_api.c:784
 fq_codel_change+0xa89/0xf60 net/sched/sch_fq_codel.c:436
 fq_codel_init+0x33f/0xa40 net/sched/sch_fq_codel.c:473
 qdisc_create+0x807/0x11a0 net/sched/sch_api.c:1256
 tc_modify_qdisc+0x8ce/0x1550 net/sched/sch_api.c:-1
 rtnetlink_rcv_msg+0x9fd/0xcb0 net/core/rtnetlink.c:5653
 netlink_rcv_skb+0x1e9/0x430 net/netlink/af_netlink.c:2511
 rtnetlink_rcv+0x1c/0x20 net/core/rtnetlink.c:5671
 netlink_unicast_kernel net/netlink/af_netlink.c:1322 [inline]
 netlink_unicast+0x86c/0xa30 net/netlink/af_netlink.c:1348
 netlink_sendmsg+0x879/0xb80 net/netlink/af_netlink.c:1922
 sock_sendmsg_nosec net/socket.c:704 [inline]
 __sock_sendmsg net/socket.c:716 [inline]
 ____sys_sendmsg+0x5be/0x8f0 net/socket.c:2435
 ___sys_sendmsg+0x236/0x2e0 net/socket.c:2489
 __sys_sendmmsg+0x2ba/0x4e0 net/socket.c:2575
 __do_sys_sendmmsg net/socket.c:2604 [inline]
 __se_sys_sendmmsg net/socket.c:2601 [inline]
 __x64_sys_sendmmsg+0xa0/0xb0 net/socket.c:2601
 x64_sys_call+0x6c6/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:308
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f0be2c48e59
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:00007f0be16a3028 EFLAGS: 00000246 ORIG_RAX: 0000000000000133
RAX: ffffffffffffffda RBX: 00007f0be2ec1fa0 RCX: 00007f0be2c48e59
RDX: 040000000000009f RSI: 00002000000002c0 RDI: 0000000000000005
RBP: 00007f0be2cdee6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f0be2ec2038 R14: 00007f0be2ec1fa0 R15: 00007ffd5639e1a8
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0 skipped: idling at native_safe_halt arch/x86/include/asm/irqflags.h:51 [inline]
NMI backtrace for cpu 0 skipped: idling at arch_safe_halt arch/x86/include/asm/irqflags.h:89 [inline]
NMI backtrace for cpu 0 skipped: idling at default_idle+0xf/0x20 arch/x86/kernel/process.c:729