syzbot


general protection fault in puts_queue

Status: upstream: reported C repro on 2026/01/31 03:14
Subsystems: serial
[Documentation on labels]
Reported-by: syzbot+c3693b491545af43db87@syzkaller.appspotmail.com
First crash: 10d, last: 8d16h
Discussions (1)
Title Replies (including bot) Last reply
[syzbot] [serial?] general protection fault in puts_queue 0 (1) 2026/01/31 03:14

Sample crash report:
Oops: general protection fault, probably for non-canonical address 0xdffffc0000000038: 0000 [#1] SMP KASAN PTI
KASAN: null-ptr-deref in range [0x00000000000001c0-0x00000000000001c7]
CPU: 1 UID: 0 PID: 5996 Comm: udevd Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/13/2026
RIP: 0010:__queue_work+0xa2/0xf90 kernel/workqueue.c:2269
Code: 11 31 ff 89 ee e8 4e f4 37 00 85 ed 0f 85 ef 0c 00 00 e8 01 f0 37 00 4d 8d b7 c0 01 00 00 4c 89 f0 48 c1 e8 03 48 89 44 24 28 <42> 0f b6 04 20 84 c0 0f 85 22 0d 00 00 4c 89 34 24 41 8b 2e 89 ee
RSP: 0018:ffffc90000a07ed8 EFLAGS: 00010002
RAX: 0000000000000038 RBX: 0000000000000008 RCX: ffff88802d660000
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffff88813fe32017 R09: 1ffff11027fc6402
R10: dffffc0000000000 R11: ffffed1027fc6403 R12: dffffc0000000000
R13: ffff88813fe32010 R14: 00000000000001c0 R15: 0000000000000000
FS:  00007fc71835f880(0000) GS:ffff888125163000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00002000000011f8 CR3: 000000007b69a000 CR4: 00000000003526f0
Call Trace:
 <IRQ>
 queue_work_on+0x106/0x1d0 kernel/workqueue.c:2405
 puts_queue+0xa3/0xe0 drivers/tty/vt/keyboard.c:334
 k_fn+0x7c/0xd0 drivers/tty/vt/keyboard.c:763
 k_pad+0x79a/0xa90 drivers/tty/vt/keyboard.c:-1
 kbd_keycode drivers/tty/vt/keyboard.c:1497 [inline]
 kbd_event+0x2ec1/0x40d0 drivers/tty/vt/keyboard.c:1515
 input_handle_events_default+0xd4/0x1a0 drivers/input/input.c:2541
 input_pass_values+0x288/0x890 drivers/input/input.c:128
 input_event_dispose+0x3e5/0x6b0 drivers/input/input.c:353
 input_event+0x89/0xe0 drivers/input/input.c:396
 hidinput_hid_event+0x1487/0x1e60 drivers/hid/hid-input.c:1747
 hid_process_event+0x4be/0x620 drivers/hid/hid-core.c:1565
 hid_input_array_field+0x41c/0x5f0 drivers/hid/hid-core.c:1677
 hid_process_report drivers/hid/hid-core.c:1719 [inline]
 hid_report_raw_event+0xdd7/0x1720 drivers/hid/hid-core.c:2074
 __hid_input_report drivers/hid/hid-core.c:2144 [inline]
 hid_input_report+0x44b/0x580 drivers/hid/hid-core.c:2166
 hid_irq_in+0x47e/0x6d0 drivers/hid/usbhid/hid-core.c:286
 __usb_hcd_giveback_urb+0x376/0x540 drivers/usb/core/hcd.c:1657
 dummy_timer+0xbbd/0x45d0 drivers/usb/gadget/udc/dummy_hcd.c:1995
 __run_hrtimer kernel/time/hrtimer.c:1785 [inline]
 __hrtimer_run_queues+0x529/0xc30 kernel/time/hrtimer.c:1849
 hrtimer_run_softirq+0x182/0x5a0 kernel/time/hrtimer.c:1866
 handle_softirqs+0x22a/0x7c0 kernel/softirq.c:626
 do_softirq+0x76/0xd0 kernel/softirq.c:523
 </IRQ>
 <TASK>
 __local_bh_enable_ip+0xf8/0x130 kernel/softirq.c:450
 sha256_blocks lib/crypto/x86/sha256.h:37 [inline]
 __sha256_update+0xf7/0x150 lib/crypto/sha256.c:208
 sha256_update include/crypto/sha2.h:356 [inline]
 crypto_sha256_update+0x27/0x40 crypto/sha256.c:145
 crypto_shash_update include/crypto/hash.h:1006 [inline]
 ima_calc_file_hash_tfm security/integrity/ima/ima_crypto.c:491 [inline]
 ima_calc_file_shash security/integrity/ima/ima_crypto.c:511 [inline]
 ima_calc_file_hash+0x1300/0x17f0 security/integrity/ima/ima_crypto.c:568
 ima_collect_measurement+0x48b/0x930 security/integrity/ima/ima_api.c:294
 process_measurement+0x12cd/0x1c80 security/integrity/ima/ima_main.c:407
 ima_bprm_check+0x121/0x180 security/integrity/ima/ima_main.c:589
 security_bprm_check+0xcd/0x240 security/security.c:794
 search_binary_handler fs/exec.c:1654 [inline]
 exec_binprm fs/exec.c:1696 [inline]
 bprm_execve+0x896/0x1410 fs/exec.c:1748
 do_execveat_common+0x50d/0x690 fs/exec.c:1846
 __do_sys_execve fs/exec.c:1930 [inline]
 __se_sys_execve fs/exec.c:1924 [inline]
 __x64_sys_execve+0x97/0xc0 fs/exec.c:1924
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xe2/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc717cf2107
Code: 0f 00 64 c7 00 07 00 00 00 b8 ff ff ff ff c9 c3 0f 1f 00 48 8b 05 a9 ee 0f 00 48 8b 10 e9 01 00 00 00 90 b8 3b 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d c1 ec 0f 00 f7 d8 64 89 01 48
RSP: 002b:00007ffc10b356d8 EFLAGS: 00000206 ORIG_RAX: 000000000000003b
RAX: ffffffffffffffda RBX: 00005646a103f140 RCX: 00007fc717cf2107
RDX: 00005646a1e9e9c0 RSI: 00007ffc10b357f0 RDI: 00007ffc10b35ff0
RBP: 0000000000000008 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000008 R11: 0000000000000206 R12: 00005646a1e9e9c0
R13: 00007ffc10b357f0 R14: 000000000000000d R15: 0000000000000009
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__queue_work+0xa2/0xf90 kernel/workqueue.c:2269
Code: 11 31 ff 89 ee e8 4e f4 37 00 85 ed 0f 85 ef 0c 00 00 e8 01 f0 37 00 4d 8d b7 c0 01 00 00 4c 89 f0 48 c1 e8 03 48 89 44 24 28 <42> 0f b6 04 20 84 c0 0f 85 22 0d 00 00 4c 89 34 24 41 8b 2e 89 ee
RSP: 0018:ffffc90000a07ed8 EFLAGS: 00010002
RAX: 0000000000000038 RBX: 0000000000000008 RCX: ffff88802d660000
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffff88813fe32017 R09: 1ffff11027fc6402
R10: dffffc0000000000 R11: ffffed1027fc6403 R12: dffffc0000000000
R13: ffff88813fe32010 R14: 00000000000001c0 R15: 0000000000000000
FS:  00007fc71835f880(0000) GS:ffff888125163000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00002000000011f8 CR3: 000000007b69a000 CR4: 00000000003526f0
----------------
Code disassembly (best guess), 1 bytes skipped:
   0:	31 ff                	xor    %edi,%edi
   2:	89 ee                	mov    %ebp,%esi
   4:	e8 4e f4 37 00       	call   0x37f457
   9:	85 ed                	test   %ebp,%ebp
   b:	0f 85 ef 0c 00 00    	jne    0xd00
  11:	e8 01 f0 37 00       	call   0x37f017
  16:	4d 8d b7 c0 01 00 00 	lea    0x1c0(%r15),%r14
  1d:	4c 89 f0             	mov    %r14,%rax
  20:	48 c1 e8 03          	shr    $0x3,%rax
  24:	48 89 44 24 28       	mov    %rax,0x28(%rsp)
* 29:	42 0f b6 04 20       	movzbl (%rax,%r12,1),%eax <-- trapping instruction
  2e:	84 c0                	test   %al,%al
  30:	0f 85 22 0d 00 00    	jne    0xd58
  36:	4c 89 34 24          	mov    %r14,(%rsp)
  3a:	41 8b 2e             	mov    (%r14),%ebp
  3d:	89 ee                	mov    %ebp,%esi

Crashes (72):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/01/27 21:01 linux-next 615aad0f61e0 9a514c2f .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce general protection fault in puts_queue
2026/01/27 17:23 linux-next 615aad0f61e0 9a514c2f .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce general protection fault in puts_queue
2026/01/27 15:36 linux-next 615aad0f61e0 9a514c2f .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce general protection fault in puts_queue
2026/01/27 10:08 linux-next 615aad0f61e0 efb3e894 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce general protection fault in puts_queue
2026/01/27 07:14 linux-next 615aad0f61e0 efb3e894 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce general protection fault in puts_queue
2026/01/27 07:06 linux-next 615aad0f61e0 efb3e894 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce general protection fault in puts_queue
2026/01/27 06:19 linux-next 615aad0f61e0 efb3e894 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce general protection fault in puts_queue
2026/01/27 05:31 linux-next 615aad0f61e0 efb3e894 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce general protection fault in puts_queue
2026/01/28 21:18 linux-next 4f938c7d3b25 004c195c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce general protection fault in puts_queue
2026/01/28 20:06 linux-next 4f938c7d3b25 004c195c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce general protection fault in puts_queue
2026/01/28 17:04 linux-next 4f938c7d3b25 004c195c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce general protection fault in puts_queue
2026/01/28 15:21 linux-next 4f938c7d3b25 004c195c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root general protection fault in puts_queue
2026/01/28 11:34 linux-next 4f938c7d3b25 004c195c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root general protection fault in puts_queue
2026/01/28 09:01 linux-next 4f938c7d3b25 3029c699 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce general protection fault in puts_queue
2026/01/28 07:21 linux-next 4f938c7d3b25 3029c699 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce general protection fault in puts_queue
2026/01/28 05:50 linux-next 4f938c7d3b25 3029c699 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce general protection fault in puts_queue
2026/01/28 03:39 linux-next 4f938c7d3b25 3029c699 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce general protection fault in puts_queue
2026/01/27 23:26 linux-next 4f938c7d3b25 3029c699 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root general protection fault in puts_queue
2026/01/27 16:16 linux-next 615aad0f61e0 9a514c2f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce general protection fault in puts_queue
2026/01/27 16:10 linux-next 615aad0f61e0 9a514c2f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce general protection fault in puts_queue
2026/01/27 16:06 linux-next 615aad0f61e0 9a514c2f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce general protection fault in puts_queue
2026/01/27 14:35 linux-next 615aad0f61e0 9a514c2f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root general protection fault in puts_queue
2026/01/27 14:33 linux-next 615aad0f61e0 9a514c2f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root general protection fault in puts_queue
2026/01/27 14:04 linux-next 615aad0f61e0 9a514c2f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce general protection fault in puts_queue
2026/01/27 12:36 linux-next 615aad0f61e0 9a514c2f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce general protection fault in puts_queue
2026/01/27 12:35 linux-next 615aad0f61e0 9a514c2f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce general protection fault in puts_queue
2026/01/27 11:13 linux-next 615aad0f61e0 9a514c2f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce general protection fault in puts_queue
2026/01/27 11:13 linux-next 615aad0f61e0 9a514c2f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce general protection fault in puts_queue
2026/01/27 11:10 linux-next 615aad0f61e0 9a514c2f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce general protection fault in puts_queue
2026/01/27 11:07 linux-next 615aad0f61e0 9a514c2f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce general protection fault in puts_queue
2026/01/27 11:06 linux-next 615aad0f61e0 9a514c2f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce general protection fault in puts_queue
2026/01/27 11:05 linux-next 615aad0f61e0 9a514c2f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce general protection fault in puts_queue
2026/01/27 11:05 linux-next 615aad0f61e0 9a514c2f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce general protection fault in puts_queue
2026/01/27 11:04 linux-next 615aad0f61e0 9a514c2f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce general protection fault in puts_queue
2026/01/27 11:03 linux-next 615aad0f61e0 9a514c2f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce general protection fault in puts_queue
2026/01/27 10:59 linux-next 615aad0f61e0 9a514c2f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce general protection fault in puts_queue
2026/01/27 10:58 linux-next 615aad0f61e0 9a514c2f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce general protection fault in puts_queue
2026/01/27 10:55 linux-next 615aad0f61e0 9a514c2f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root general protection fault in puts_queue
2026/01/27 08:41 linux-next 615aad0f61e0 efb3e894 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root general protection fault in puts_queue
2026/01/27 05:43 linux-next 615aad0f61e0 efb3e894 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce general protection fault in puts_queue
2026/01/27 04:31 linux-next 615aad0f61e0 efb3e894 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root general protection fault in puts_queue
2026/01/27 04:31 linux-next 615aad0f61e0 efb3e894 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root general protection fault in puts_queue
2026/01/27 03:43 linux-next 615aad0f61e0 efb3e894 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root general protection fault in puts_queue
2026/01/27 03:38 linux-next 615aad0f61e0 efb3e894 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce general protection fault in puts_queue
2026/01/27 03:38 linux-next 615aad0f61e0 efb3e894 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce general protection fault in puts_queue
2026/01/27 03:35 linux-next 615aad0f61e0 efb3e894 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce general protection fault in puts_queue
2026/01/27 03:35 linux-next 615aad0f61e0 efb3e894 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce general protection fault in puts_queue
2026/01/27 03:34 linux-next 615aad0f61e0 efb3e894 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce general protection fault in puts_queue
2026/01/27 03:32 linux-next 615aad0f61e0 efb3e894 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce general protection fault in puts_queue
2026/01/27 03:31 linux-next 615aad0f61e0 efb3e894 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce general protection fault in puts_queue
2026/01/27 03:11 linux-next 615aad0f61e0 efb3e894 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root general protection fault in puts_queue
* Struck through repros no longer work on HEAD.