linux-kernel - [syzbot] upstream test error: BUG: stack guard page was hit in corrupted

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Message-ID: <66eb52dc.050a0220.92ef1.0006.GAE@google.com>
Date: Wed, 18 Sep 2024 15:23:24 -0700
From: syzbot <syzbot+d5db198a0f40411f24c3@...kaller.appspotmail.com>
To: linux-kernel@...r.kernel.org, syzkaller-bugs@...glegroups.com
Subject: [syzbot] upstream test error: BUG: stack guard page was hit in corrupted

Hello,

syzbot found the following issue on:

HEAD commit:    4a39ac5b7d62 Merge tag 'random-6.12-rc1-for-linus' of git:..
git tree:       upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=153e7fc7980000
kernel config:  https://syzkaller.appspot.com/x/.config?x=c78e7c8f41d443e6
dashboard link: https://syzkaller.appspot.com/bug?extid=d5db198a0f40411f24c3
compiler:       gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/f4127f9a9466/disk-4a39ac5b.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/23dcf778c269/vmlinux-4a39ac5b.xz
kernel image: https://storage.googleapis.com/syzbot-assets/386c61739e91/bzImage-4a39ac5b.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+d5db198a0f40411f24c3@...kaller.appspotmail.com

BUG: TASK stack guard page was hit at ffffc9000005fff8 (stack is ffffc90000060000..ffffc90000068000)
Oops: stack guard page: 0000 [#1] PREEMPT SMP KASAN PTI
CPU: 0 UID: 0 PID: 1 Comm: swapper/0 Not tainted 6.11.0-syzkaller-05319-g4a39ac5b7d62 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
RIP: 0010:error_entry+0xd/0x140 arch/x86/entry/entry_64.S:1007
Code: fd ff ff 85 db 0f 85 8e fd ff ff 0f 01 f8 e9 86 fd ff ff 66 2e 0f 1f 84 00 00 00 00 00 56 48 8b 74 24 08 48 89 7c 24 08 52 51 <50> 41 50 41 51 41 52 41 53 53 55 41 54 41 55 41 56 41 57 56 31 f6
RSP: 0000:ffffc90000060000 EFLAGS: 00010046
RAX: 0000000000000002 RBX: ffffc90000060088 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff8b20128d RDI: ffffffff8bb130e0
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880b8800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc9000005fff8 CR3: 000000000dd7c000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <#DF>
 </#DF>
 <TASK>
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:error_entry+0xd/0x140 arch/x86/entry/entry_64.S:1007
Code: fd ff ff 85 db 0f 85 8e fd ff ff 0f 01 f8 e9 86 fd ff ff 66 2e 0f 1f 84 00 00 00 00 00 56 48 8b 74 24 08 48 89 7c 24 08 52 51 <50> 41 50 41 51 41 52 41 53 53 55 41 54 41 55 41 56 41 57 56 31 f6
RSP: 0000:ffffc90000060000 EFLAGS: 00010046
RAX: 0000000000000002 RBX: ffffc90000060088 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff8b20128d RDI: ffffffff8bb130e0
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880b8800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc9000005fff8 CR3: 000000000dd7c000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess), 3 bytes skipped:
   0:	85 db                	test   %ebx,%ebx
   2:	0f 85 8e fd ff ff    	jne    0xfffffd96
   8:	0f 01 f8             	swapgs
   b:	e9 86 fd ff ff       	jmp    0xfffffd96
  10:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  17:	00 00 00
  1a:	56                   	push   %rsi
  1b:	48 8b 74 24 08       	mov    0x8(%rsp),%rsi
  20:	48 89 7c 24 08       	mov    %rdi,0x8(%rsp)
  25:	52                   	push   %rdx
  26:	51                   	push   %rcx
* 27:	50                   	push   %rax <-- trapping instruction
  28:	41 50                	push   %r8
  2a:	41 51                	push   %r9
  2c:	41 52                	push   %r10
  2e:	41 53                	push   %r11
  30:	53                   	push   %rbx
  31:	55                   	push   %rbp
  32:	41 54                	push   %r12
  34:	41 55                	push   %r13
  36:	41 56                	push   %r14
  38:	41 57                	push   %r15
  3a:	56                   	push   %rsi
  3b:	31 f6                	xor    %esi,%esi


---
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