BUG: TASK stack guard page was hit at ffffc9000ea5ffd8 (stack is ffffc9000ea60000..ffffc9000ea68000)
Oops: stack guard page: 0000 [#1] PREEMPT SMP KASAN PTI
CPU: 0 UID: 0 PID: 1205 Comm: syz.2.255 Not tainted syzkaller #0 c4f231820317ff22bb61fe038e0df9024df7047c
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
RIP: 0010:arch_stack_walk+0x74/0x170 arch/x86/kernel/stacktrace.c:18
Code: 00 00 48 c7 45 b0 00 00 00 00 48 c7 45 a8 00 00 00 00 48 c7 45 a0 00 00 00 00 48 c7 45 98 00 00 00 00 48 c7 45 90 00 00 00 00 <48> c7 45 88 00 00 00 00 48 c7 45 80 00 00 00 00 48 c7 85 78 ff ff
RSP: 0018:ffffc9000ea5ffe8 EFLAGS: 00010296
RAX: be291f0b03a88000 RBX: ffffc9000ea600a0 RCX: 0000000000000000
RDX: ffff88811f394c00 RSI: ffffc9000ea600a0 RDI: ffffffff8175cdf0
RBP: ffffc9000ea60070 R08: ffffc9000ea601df R09: 0000000000000000
R10: ffffc9000ea60160 R11: fffff52001d4c03c R12: ffff88811f394c00
R13: 1ffff11023e72a40 R14: ffffffff8175cdf0 R15: 0000000000000000
FS:  00007f06bff906c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc9000ea5ffd8 CR3: 00000001208ea000 CR4: 00000000003526b0
DR0: ffffffffffffffff DR1: 00000000000001f8 DR2: 0000000000000083
DR3: ffffffffefffff15 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:arch_stack_walk+0x74/0x170 arch/x86/kernel/stacktrace.c:18
Code: 00 00 48 c7 45 b0 00 00 00 00 48 c7 45 a8 00 00 00 00 48 c7 45 a0 00 00 00 00 48 c7 45 98 00 00 00 00 48 c7 45 90 00 00 00 00 <48> c7 45 88 00 00 00 00 48 c7 45 80 00 00 00 00 48 c7 85 78 ff ff
RSP: 0018:ffffc9000ea5ffe8 EFLAGS: 00010296
RAX: be291f0b03a88000 RBX: ffffc9000ea600a0 RCX: 0000000000000000
RDX: ffff88811f394c00 RSI: ffffc9000ea600a0 RDI: ffffffff8175cdf0
RBP: ffffc9000ea60070 R08: ffffc9000ea601df R09: 0000000000000000
R10: ffffc9000ea60160 R11: fffff52001d4c03c R12: ffff88811f394c00
R13: 1ffff11023e72a40 R14: ffffffff8175cdf0 R15: 0000000000000000
FS:  00007f06bff906c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc9000ea5ffd8 CR3: 00000001208ea000 CR4: 00000000003526b0
DR0: ffffffffffffffff DR1: 00000000000001f8 DR2: 0000000000000083
DR3: ffffffffefffff15 DR6: 00000000ffff0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	00 00                	add    %al,(%rax)
   2:	48 c7 45 b0 00 00 00 	movq   $0x0,-0x50(%rbp)
   9:	00
   a:	48 c7 45 a8 00 00 00 	movq   $0x0,-0x58(%rbp)
  11:	00
  12:	48 c7 45 a0 00 00 00 	movq   $0x0,-0x60(%rbp)
  19:	00
  1a:	48 c7 45 98 00 00 00 	movq   $0x0,-0x68(%rbp)
  21:	00
  22:	48 c7 45 90 00 00 00 	movq   $0x0,-0x70(%rbp)
  29:	00
* 2a:	48 c7 45 88 00 00 00 	movq   $0x0,-0x78(%rbp) <-- trapping instruction
  31:	00
  32:	48 c7 45 80 00 00 00 	movq   $0x0,-0x80(%rbp)
  39:	00
  3a:	48                   	rex.W
  3b:	c7                   	.byte 0xc7
  3c:	85 78 ff             	test   %edi,-0x1(%rax)
  3f:	ff                   	.byte 0xff