R13: 00007eff6ec9f038 R14: 00007eff6ec9efa0 R15: 00007ffc76119b78
</TASK>
watchdog: BUG: soft lockup - CPU#1 stuck for 246s! [syz.0.1080:4579]
Modules linked in:
CPU: 1 PID: 4579 Comm: syz.0.1080 Tainted: G W syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:__sanitizer_cov_trace_switch+0x0/0xe0 kernel/kcov.c:309
Code: 05 4d 8d 50 28 4d 39 ca 77 1e 4a c7 44 02 08 07 00 00 00 4a 89 7c 02 10 4a 89 74 02 18 4a 89 44 02 20 48 ff c1 48 89 0a 5d c3 <48> 8b 4e 08 48 83 c1 f8 48 c1 c1 3d 48 83 f9 07 0f 87 c5 00 00 00
RSP: 0018:ffffc90001dfef00 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffff88810b63203c RCX: 0000000000080000
RDX: ffffc9000136b000 RSI: ffffffff86d3f920 RDI: 00000000fffffff1
RBP: ffffc90001dfef50 R08: ffff88811cde8000 R09: 0000000000000002
R10: 00000000ffffffff R11: 0000000000000002 R12: 00000000fffffff1
R13: ffff88810b6320cc R14: dffffc0000000000 R15: ffff88810b632000
FS: 00007eff6d4b06c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000001200 CR3: 000000012a66b000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
codel_change+0x8d1/0xc00 net/sched/sch_codel.c:180
codel_init+0x1a8/0x390 net/sched/sch_codel.c:199
qdisc_create+0x7ed/0x11a0 net/sched/sch_api.c:1266
tc_modify_qdisc+0x8eb/0x15a0 net/sched/sch_api.c:1726
rtnetlink_rcv_msg+0x9e4/0xb90 net/core/rtnetlink.c:5650
netlink_rcv_skb+0x1e0/0x430 net/netlink/af_netlink.c:2511
rtnetlink_rcv+0x1c/0x20 net/core/rtnetlink.c:5668
netlink_unicast_kernel net/netlink/af_netlink.c:1322 [inline]
netlink_unicast+0x876/0xa40 net/netlink/af_netlink.c:1348
netlink_sendmsg+0x86a/0xb70 net/netlink/af_netlink.c:1922
sock_sendmsg_nosec net/socket.c:704 [inline]
__sock_sendmsg net/socket.c:716 [inline]
____sys_sendmsg+0x5a2/0x8c0 net/socket.c:2436
___sys_sendmsg+0x1f0/0x260 net/socket.c:2490
__sys_sendmsg net/socket.c:2519 [inline]
__do_sys_sendmsg net/socket.c:2528 [inline]
__se_sys_sendmsg net/socket.c:2526 [inline]
__x64_sys_sendmsg+0x1e2/0x2a0 net/socket.c:2526
x64_sys_call+0x4b/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:47
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: 0033:0x7eff6ea48749
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:00007eff6d4b0038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007eff6ec9efa0 RCX: 00007eff6ea48749
RDX: 0000000020000104 RSI: 0000200000001200 RDI: 0000000000000008
RBP: 00007eff6eaccf91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007eff6ec9f038 R14: 00007eff6ec9efa0 R15: 00007ffc76119b78
</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