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general protection fault in htb_qlen_notify

Status: upstream: reported C repro on 2025/07/03 08:17
Subsystems: net
[Documentation on labels]
Reported-by: syzbot+d8b58d7b0ad89a678a16@syzkaller.appspotmail.com
Fix commit: ffdde7bf5a43 net/sched: Abort __tc_modify_qdisc if parent class does not exist
Patched on: [ci-qemu-gce-upstream-auto ci-qemu-upstream ci-qemu-upstream-386 ci-qemu2-arm32 ci-qemu2-arm64 ci-qemu2-arm64-compat ci-qemu2-arm64-mte ci-snapshot-upstream-root ci-upstream-gce-leak ci-upstream-kasan-badwrites-root ci-upstream-kasan-gce ci-upstream-kasan-gce-386 ci-upstream-kasan-gce-root ci-upstream-kasan-gce-selinux-root ci-upstream-kasan-gce-smack-root ci-upstream-kmsan-gce-386-root ci-upstream-kmsan-gce-root ci-upstream-linux-next-kasan-gce-root ci-upstream-net-kasan-gce ci-upstream-net-this-kasan-gce ci-upstream-rust-kasan-gce ci2-upstream-fs ci2-upstream-kcsan-gce], missing on: [ci-qemu-native-arm64-kvm ci-qemu2-riscv64 ci-upstream-bpf-kasan-gce ci-upstream-bpf-next-kasan-gce ci-upstream-gce-arm64 ci2-upstream-usb]
First crash: 13d, last: 3d08h
Cause bisection: introduced by (bisect log) :
commit 103406b38c600fec1fe375a77b27d87e314aea09
Author: Lion Ackermann <nnamrec@gmail.com>
Date: Mon Jun 30 13:27:30 2025 +0000

  net/sched: Always pass notifications when child class becomes empty

Crash: BUG: unable to handle kernel NULL pointer dereference in htb_qlen_notify (log)
Repro: C syz .config
  
▶ ▼ Discussions (3)
Title Replies (including bot) Last reply
[PATCH net v2] net/sched: Abort __tc_modify_qdisc if parent class does not exist 2 (2) 2025/07/10 02:50
[PATCH net] net/sched: Abort __tc_modify_qdisc if parent class does not exist 4 (4) 2025/07/07 13:59
[syzbot] [net?] general protection fault in htb_qlen_notify 3 (7) 2025/07/05 05:43
▶ ▼ Similar bugs (4)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-6.6 general protection fault in htb_qlen_notify 2 1 2h07m 2h06m 0/2 upstream: reported on 2025/07/16 10:29
linux-5.15 general protection fault in htb_qlen_notify origin:lts-only 8 C 9 4d13h 5d17h 0/3 upstream: reported C repro on 2025/07/10 18:58
android-5-15 general protection fault in htb_qlen_notify 2 3 5h05m 1d23h 0/2 premoderation: reported on 2025/07/14 13:36
linux-6.1 general protection fault in htb_qlen_notify origin:lts-only 2 C 4 3d22h 5d17h 0/3 upstream: reported C repro on 2025/07/10 18:56
▶ ▼ Last patch testing requests (1)
Created Duration User Patch Repo Result
2025/07/03 21:06 1h40m victor@mojatatu.com patch net OK log

Sample crash report:
Oops: general protection fault, probably for non-canonical address 0xdffffc0000000035: 0000 [#1] SMP KASAN PTI
KASAN: null-ptr-deref in range [0x00000000000001a8-0x00000000000001af]
CPU: 0 UID: 0 PID: 6084 Comm: syz.0.16 Not tainted 6.16.0-rc3-syzkaller-00144-gbd475eeaaf3c #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:htb_deactivate net/sched/sch_htb.c:613 [inline]
RIP: 0010:htb_qlen_notify+0x31/0xc0 net/sched/sch_htb.c:1489
Code: 41 56 41 55 41 54 53 49 89 f6 49 89 ff 49 bc 00 00 00 00 00 fc ff df e8 3d c6 46 f8 49 8d 9e a8 01 00 00 49 89 dd 49 c1 ed 03 <43> 0f b6 44 25 00 84 c0 75 4d 8b 2b 31 ff 89 ee e8 5a ca 46 f8 85
RSP: 0018:ffffc90003446fb0 EFLAGS: 00010206
RAX: ffffffff89798833 RBX: 00000000000001a8 RCX: ffff88802ffb0000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff888072130000
RBP: dffffc0000000000 R08: ffff88802ffb0000 R09: 0000000000000002
R10: 00000000ffffffff R11: ffffffff89798810 R12: dffffc0000000000
R13: 0000000000000035 R14: 0000000000000000 R15: ffff888072130000
FS:  00007fbd3d5fe6c0(0000) GS:ffff888125c50000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f92b51d2440 CR3: 000000007ce86000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 qdisc_tree_reduce_backlog+0x29c/0x480 net/sched/sch_api.c:811
 fq_change+0x1519/0x1f50 net/sched/sch_fq.c:1147
 fq_init+0x699/0x960 net/sched/sch_fq.c:1201
 qdisc_create+0x7ac/0xea0 net/sched/sch_api.c:1324
 __tc_modify_qdisc net/sched/sch_api.c:1749 [inline]
 tc_modify_qdisc+0x1426/0x2010 net/sched/sch_api.c:1813
 rtnetlink_rcv_msg+0x779/0xb70 net/core/rtnetlink.c:6953
 netlink_rcv_skb+0x208/0x470 net/netlink/af_netlink.c:2534
 netlink_unicast_kernel net/netlink/af_netlink.c:1313 [inline]
 netlink_unicast+0x75b/0x8d0 net/netlink/af_netlink.c:1339
 netlink_sendmsg+0x805/0xb30 net/netlink/af_netlink.c:1883
 sock_sendmsg_nosec net/socket.c:712 [inline]
 __sock_sendmsg+0x21c/0x270 net/socket.c:727
 ____sys_sendmsg+0x505/0x830 net/socket.c:2566
 ___sys_sendmsg+0x21f/0x2a0 net/socket.c:2620
 __sys_sendmsg net/socket.c:2652 [inline]
 __do_sys_sendmsg net/socket.c:2657 [inline]
 __se_sys_sendmsg net/socket.c:2655 [inline]
 __x64_sys_sendmsg+0x19b/0x260 net/socket.c:2655
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fbd3e38e929
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:00007fbd3d5fe038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fbd3e5b5fa0 RCX: 00007fbd3e38e929
RDX: 0000000000044080 RSI: 0000200000000040 RDI: 0000000000000006
RBP: 00007fbd3e410b39 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fbd3e5b5fa0 R15: 00007ffd70284448
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:htb_deactivate net/sched/sch_htb.c:613 [inline]
RIP: 0010:htb_qlen_notify+0x31/0xc0 net/sched/sch_htb.c:1489
Code: 41 56 41 55 41 54 53 49 89 f6 49 89 ff 49 bc 00 00 00 00 00 fc ff df e8 3d c6 46 f8 49 8d 9e a8 01 00 00 49 89 dd 49 c1 ed 03 <43> 0f b6 44 25 00 84 c0 75 4d 8b 2b 31 ff 89 ee e8 5a ca 46 f8 85
RSP: 0018:ffffc90003446fb0 EFLAGS: 00010206
RAX: ffffffff89798833 RBX: 00000000000001a8 RCX: ffff88802ffb0000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff888072130000
RBP: dffffc0000000000 R08: ffff88802ffb0000 R09: 0000000000000002
R10: 00000000ffffffff R11: ffffffff89798810 R12: dffffc0000000000
R13: 0000000000000035 R14: 0000000000000000 R15: ffff888072130000
FS:  00007fbd3d5fe6c0(0000) GS:ffff888125c50000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f92b51d2440 CR3: 000000007ce86000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	41 56                	push   %r14
   2:	41 55                	push   %r13
   4:	41 54                	push   %r12
   6:	53                   	push   %rbx
   7:	49 89 f6             	mov    %rsi,%r14
   a:	49 89 ff             	mov    %rdi,%r15
   d:	49 bc 00 00 00 00 00 	movabs $0xdffffc0000000000,%r12
  14:	fc ff df
  17:	e8 3d c6 46 f8       	call   0xf846c659
  1c:	49 8d 9e a8 01 00 00 	lea    0x1a8(%r14),%rbx
  23:	49 89 dd             	mov    %rbx,%r13
  26:	49 c1 ed 03          	shr    $0x3,%r13
* 2a:	43 0f b6 44 25 00    	movzbl 0x0(%r13,%r12,1),%eax <-- trapping instruction
  30:	84 c0                	test   %al,%al
  32:	75 4d                	jne    0x81
  34:	8b 2b                	mov    (%rbx),%ebp
  36:	31 ff                	xor    %edi,%edi
  38:	89 ee                	mov    %ebp,%esi
  3a:	e8 5a ca 46 f8       	call   0xf846ca99
  3f:	85                   	.byte 0x85

Crashes (166):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/07/03 17:46 net bd475eeaaf3c 115ceea7 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce general protection fault in htb_qlen_notify
2025/07/03 14:14 net bd475eeaaf3c 115ceea7 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce general protection fault in htb_qlen_notify
2025/07/03 11:32 net bd475eeaaf3c 115ceea7 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce general protection fault in htb_qlen_notify
2025/07/10 20:39 upstream 8c2e52ebbe88 19d4829f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce general protection fault in htb_qlen_notify
2025/07/10 15:39 upstream 8c2e52ebbe88 19d4829f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce general protection fault in htb_qlen_notify
2025/07/10 11:29 upstream 8c2e52ebbe88 19d4829f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root general protection fault in htb_qlen_notify
2025/07/09 21:24 upstream 8c2e52ebbe88 f4e5e155 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce general protection fault in htb_qlen_notify
2025/07/09 03:49 upstream d006330be3f7 abade794 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce general protection fault in htb_qlen_notify
2025/07/09 02:15 upstream d006330be3f7 abade794 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce general protection fault in htb_qlen_notify
2025/07/08 15:36 upstream d7b8f8e20813 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce general protection fault in htb_qlen_notify
2025/07/08 13:58 upstream d7b8f8e20813 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root general protection fault in htb_qlen_notify
2025/07/08 08:58 upstream d7b8f8e20813 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce general protection fault in htb_qlen_notify
2025/07/08 07:29 upstream d7b8f8e20813 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root general protection fault in htb_qlen_notify
2025/07/08 02:38 upstream d7b8f8e20813 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce general protection fault in htb_qlen_notify
2025/07/07 21:14 upstream d7b8f8e20813 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce general protection fault in htb_qlen_notify
2025/07/07 18:37 upstream d7b8f8e20813 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root general protection fault in htb_qlen_notify
2025/07/07 16:30 upstream d7b8f8e20813 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root general protection fault in htb_qlen_notify
2025/07/07 14:52 upstream d7b8f8e20813 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce general protection fault in htb_qlen_notify
2025/07/07 11:05 upstream d7b8f8e20813 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce general protection fault in htb_qlen_notify
2025/07/07 07:45 upstream d7b8f8e20813 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root general protection fault in htb_qlen_notify
2025/07/07 06:08 upstream d7b8f8e20813 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce general protection fault in htb_qlen_notify
2025/07/07 05:03 upstream d7b8f8e20813 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root general protection fault in htb_qlen_notify
2025/07/06 22:40 upstream 1f988d0788f5 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root general protection fault in htb_qlen_notify
2025/07/06 13:35 upstream 1f988d0788f5 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce general protection fault in htb_qlen_notify
2025/07/06 11:14 upstream 05df91921da6 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root general protection fault in htb_qlen_notify
2025/07/06 09:00 upstream 05df91921da6 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce general protection fault in htb_qlen_notify
2025/07/06 07:05 upstream 05df91921da6 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce general protection fault in htb_qlen_notify
2025/07/06 05:53 upstream 05df91921da6 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce general protection fault in htb_qlen_notify
2025/07/06 03:28 upstream 05df91921da6 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce general protection fault in htb_qlen_notify
2025/07/05 22:45 upstream 05df91921da6 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce general protection fault in htb_qlen_notify
2025/07/05 18:26 upstream a79a588fc176 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce general protection fault in htb_qlen_notify
2025/07/05 14:41 upstream a79a588fc176 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce general protection fault in htb_qlen_notify
2025/07/05 08:34 upstream a79a588fc176 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce general protection fault in htb_qlen_notify
2025/07/05 04:22 upstream 4c06e63b9203 d869b261 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce general protection fault in htb_qlen_notify
2025/07/05 00:01 upstream 4c06e63b9203 d869b261 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root general protection fault in htb_qlen_notify
2025/07/08 11:17 upstream d7b8f8e20813 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 general protection fault in htb_qlen_notify
2025/07/07 23:28 upstream d7b8f8e20813 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 general protection fault in htb_qlen_notify
2025/07/05 10:58 upstream a79a588fc176 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 general protection fault in htb_qlen_notify
2025/07/06 18:32 upstream 1f988d0788f5 4f67c4ae .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root general protection fault in htb_qlen_notify
2025/07/06 17:29 upstream 1f988d0788f5 4f67c4ae .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream general protection fault in htb_qlen_notify
2025/07/06 15:07 upstream 1f988d0788f5 4f67c4ae .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream general protection fault in htb_qlen_notify
2025/07/05 07:05 upstream c435a4f487e8 4f67c4ae .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream general protection fault in htb_qlen_notify
2025/07/04 16:07 upstream 4c06e63b9203 d869b261 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 general protection fault in htb_qlen_notify
2025/07/10 05:30 net 3aaea88f7dd1 956bd956 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce general protection fault in htb_qlen_notify
2025/07/09 10:09 net 3c78f91e82d6 abade794 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce general protection fault in htb_qlen_notify
2025/07/09 05:41 net 3c78f91e82d6 abade794 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce general protection fault in htb_qlen_notify
2025/07/08 23:14 net 80852774ba0a abade794 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce general protection fault in htb_qlen_notify
2025/07/08 15:59 net 80852774ba0a abade794 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce general protection fault in htb_qlen_notify
2025/07/07 03:39 net b9fd9888a565 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce general protection fault in htb_qlen_notify
2025/07/07 01:02 net b9fd9888a565 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce general protection fault in htb_qlen_notify
2025/07/03 07:30 net bd475eeaaf3c 0cd59a8f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce general protection fault in htb_qlen_notify
2025/07/03 06:31 net bd475eeaaf3c 0cd59a8f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce general protection fault in htb_qlen_notify
2025/07/10 23:24 net-next c65d34296b22 19d4829f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce general protection fault in htb_qlen_notify
2025/07/10 00:12 net-next ea988b450690 f4e5e155 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce general protection fault in htb_qlen_notify
2025/07/08 21:06 net-next d23647fd547b abade794 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce general protection fault in htb_qlen_notify
2025/07/08 04:02 net-next 59f44c9ccc3b 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce general protection fault in htb_qlen_notify
2025/07/07 11:56 net-next 6b9fd8857b9f 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce general protection fault in htb_qlen_notify
2025/07/07 02:31 net-next 6b9fd8857b9f 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce general protection fault in htb_qlen_notify
2025/07/05 20:22 net-next 6b9fd8857b9f 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce general protection fault in htb_qlen_notify
2025/07/05 17:08 net-next 6b9fd8857b9f 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce general protection fault in htb_qlen_notify
2025/07/10 04:12 linux-next 835244aba90d 956bd956 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root general protection fault in htb_qlen_notify
2025/07/08 02:44 upstream d7b8f8e20813 4f67c4ae .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm64 BUG: unable to handle kernel paging request in htb_qlen_notify
2025/07/05 08:58 upstream a79a588fc176 4f67c4ae .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 BUG: unable to handle kernel NULL pointer dereference in htb_qlen_notify
2025/07/13 04:23 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci ec4801305969 3cda49cf .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: unable to handle kernel paging request in htb_qlen_notify
2025/07/08 18:57 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci ec4801305969 abade794 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: unable to handle kernel paging request in htb_qlen_notify
2025/07/08 17:06 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci ec4801305969 abade794 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: unable to handle kernel paging request in htb_qlen_notify
* Struck through repros no longer work on HEAD.