BUG: stack guard page was hit in corrupted (6)

[syzbot]

Hello,

syzbot found the following issue on:

HEAD commit: e1b86e7f5cbb Merge branch 'android12-5.10' into `android12..
git tree: android12-5.10-lts
console output: https://syzkaller.appspot.com/x/log.txt?x=15003845700000
kernel config: https://syzkaller.appspot.com/x/.config?x=35d59e0f6d92b6d1
dashboard link: https://syzkaller.appspot.com/bug?extid=9c846a451d66059a7e0e
compiler: Debian clang version 11.0.1-2, GNU ld (GNU Binutils for Debian) 2.35.2
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=13c13d21700000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=14b05c5e700000

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+9c846a...@syzkaller.appspotmail.com

BUG: stack guard page was hit at ffffc90000947fb8 (stack is ffffc90000948000..ffffc9000094ffff)
kernel stack overflow (double-fault): 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 368 Comm: syz-executor277 Not tainted 5.10.102-syzkaller-00171-ge1b86e7f5cbb #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__find_get_block+0x1b/0xbd0 fs/buffer.c:1332
Code: 5c 41 5d 41 5e 41 5f 5d c3 e8 01 d6 d7 02 90 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 e4 e0 48 81 ec a0 00 00 00 41 89 d5 <48> 89 34 24 48 89 7c 24 08 65 48 8b 04 25 28 00 00 00 48 89 84 24
RSP: 0018:ffffc90000947fc0 EFLAGS: 00010286
RAX: ffffffff81be2471 RBX: 0000000000000008 RCX: ffff8881081be2c0
RDX: 0000000000001000 RSI: 00000000000000d8 RDI: ffff88810044b740
RBP: ffffc900009480a0 R08: ffffffff81e8b370 R09: ffffc900009481e0
R10: fffff52000129041 R11: 0000000000000000 R12: ffff88810044b740
R13: 0000000000001000 R14: 0000000000001000 R15: 00000000000000d8
FS: 00005555560153c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90000947fb8 CR3: 000000011d384000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
Modules linked in:
---[ end trace 6f796504f43db648 ]---
RIP: 0010:__find_get_block+0x1b/0xbd0 fs/buffer.c:1332
Code: 5c 41 5d 41 5e 41 5f 5d c3 e8 01 d6 d7 02 90 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 e4 e0 48 81 ec a0 00 00 00 41 89 d5 <48> 89 34 24 48 89 7c 24 08 65 48 8b 04 25 28 00 00 00 48 89 84 24
RSP: 0018:ffffc90000947fc0 EFLAGS: 00010286
RAX: ffffffff81be2471 RBX: 0000000000000008 RCX: ffff8881081be2c0
RDX: 0000000000001000 RSI: 00000000000000d8 RDI: ffff88810044b740
RBP: ffffc900009480a0 R08: ffffffff81e8b370 R09: ffffc900009481e0
R10: fffff52000129041 R11: 0000000000000000 R12: ffff88810044b740
R13: 0000000000001000 R14: 0000000000001000 R15: 00000000000000d8
FS: 00005555560153c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90000947fb8 CR3: 000000011d384000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
0: 5c pop %rsp
1: 41 5d pop %r13
3: 41 5e pop %r14
5: 41 5f pop %r15
7: 5d pop %rbp
8: c3 retq
9: e8 01 d6 d7 02 callq 0x2d7d60f
e: 90 nop
f: 55 push %rbp
10: 48 89 e5 mov %rsp,%rbp
13: 41 57 push %r15
15: 41 56 push %r14
17: 41 55 push %r13
19: 41 54 push %r12
1b: 53 push %rbx
1c: 48 83 e4 e0 and $0xffffffffffffffe0,%rsp
20: 48 81 ec a0 00 00 00 sub $0xa0,%rsp
27: 41 89 d5 mov %edx,%r13d
* 2a: 48 89 34 24 mov %rsi,(%rsp) <-- trapping instruction
2e: 48 89 7c 24 08 mov %rdi,0x8(%rsp)
33: 65 48 8b 04 25 28 00 mov %gs:0x28,%rax
3a: 00 00
3c: 48 rex.W
3d: 89 .byte 0x89
3e: 84 .byte 0x84
3f: 24 .byte 0x24


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[Tadeusz Struk]

#syz dup: BUG: stack guard page was hit in file_open