general protection fault, probably for non-canonical address 0xdffffc0000000003: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000018-0x000000000000001f]
CPU: 0 PID: 55 Comm: kworker/0:2 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Workqueue: events work_for_cpu_fn
RIP: 0010:i915_pci_probe+0x58/0x470 drivers/gpu/drm/i915/i915_pci.c:1017
Code: 7b 18 4c 89 f8 48 c1 e8 03 42 80 3c 30 00 74 08 4c 89 ff e8 0a 2b 03 fd 4d 8b 3f 49 8d 5f 1c 4d 8d 6f 23 49 89 dc 49 c1 ec 03 <43> 0f b6 04 34 84 c0 0f 85 b9 02 00 00 4c 89 e8 48 c1 e8 03 42 0f
RSP: 0018:ffffc9000130fb10 EFLAGS: 00010207
RAX: 1ffffffff164230f RBX: 000000000000001c RCX: ffff88801c6b0000
RDX: 0000000000000000 RSI: ffffffff8b211860 RDI: ffff888147a54000
RBP: ffff888147a54000 R08: ffffffff911eb557 R09: 1ffffffff223d6aa
R10: dffffc0000000000 R11: fffffbfff223d6ab R12: 0000000000000003
R13: 0000000000000023 R14: dffffc0000000000 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c379911 CR3: 000000005e510000 CR4: 00000000003506f0
Call Trace:
 <TASK>
 local_pci_probe+0xc9/0x150 drivers/pci/pci-driver.c:324
 work_for_cpu_fn+0x54/0x80 kernel/workqueue.c:5704
 process_one_work kernel/workqueue.c:2657 [inline]
 process_scheduled_works+0xa60/0x1600 kernel/workqueue.c:2734
 worker_thread+0xa5e/0xfe0 kernel/workqueue.c:2815
 kthread+0x2fa/0x390 kernel/kthread.c:388
 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:152
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:293
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:i915_pci_probe+0x58/0x470 drivers/gpu/drm/i915/i915_pci.c:1017
Code: 7b 18 4c 89 f8 48 c1 e8 03 42 80 3c 30 00 74 08 4c 89 ff e8 0a 2b 03 fd 4d 8b 3f 49 8d 5f 1c 4d 8d 6f 23 49 89 dc 49 c1 ec 03 <43> 0f b6 04 34 84 c0 0f 85 b9 02 00 00 4c 89 e8 48 c1 e8 03 42 0f
RSP: 0018:ffffc9000130fb10 EFLAGS: 00010207
RAX: 1ffffffff164230f RBX: 000000000000001c RCX: ffff88801c6b0000
RDX: 0000000000000000 RSI: ffffffff8b211860 RDI: ffff888147a54000
RBP: ffff888147a54000 R08: ffffffff911eb557 R09: 1ffffffff223d6aa
R10: dffffc0000000000 R11: fffffbfff223d6ab R12: 0000000000000003
R13: 0000000000000023 R14: dffffc0000000000 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2cd4df6d58 CR3: 0000000061e8c000 CR4: 00000000003506f0
----------------
Code disassembly (best guess):
   0:	7b 18                	jnp    0x1a
   2:	4c 89 f8             	mov    %r15,%rax
   5:	48 c1 e8 03          	shr    $0x3,%rax
   9:	42 80 3c 30 00       	cmpb   $0x0,(%rax,%r14,1)
   e:	74 08                	je     0x18
  10:	4c 89 ff             	mov    %r15,%rdi
  13:	e8 0a 2b 03 fd       	call   0xfd032b22
  18:	4d 8b 3f             	mov    (%r15),%r15
  1b:	49 8d 5f 1c          	lea    0x1c(%r15),%rbx
  1f:	4d 8d 6f 23          	lea    0x23(%r15),%r13
  23:	49 89 dc             	mov    %rbx,%r12
  26:	49 c1 ec 03          	shr    $0x3,%r12
* 2a:	43 0f b6 04 34       	movzbl (%r12,%r14,1),%eax <-- trapping instruction
  2f:	84 c0                	test   %al,%al
  31:	0f 85 b9 02 00 00    	jne    0x2f0
  37:	4c 89 e8             	mov    %r13,%rax
  3a:	48 c1 e8 03          	shr    $0x3,%rax
  3e:	42                   	rex.X
  3f:	0f                   	.byte 0xf