[moderation] [kernel?] kernel panic: stack is corrupted in __schedule (4)

[syzbot]

Hello,

syzbot found the following issue on:

HEAD commit: 2c8159388952 Merge tag 'rust-fixes-6.9' of https://github...
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=1301d2f8980000
kernel config: https://syzkaller.appspot.com/x/.config?x=3d46aa9d7a44f40d
dashboard link: https://syzkaller.appspot.com/bug?extid=a77769b6a863a77301c2
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
CC: [linux-...@vger.kernel.org lu...@kernel.org pet...@infradead.org tg...@linutronix.de]

Unfortunately, I don't have any reproducer for this issue yet.

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/c3e1ea802fa3/disk-2c815938.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/08cefa730085/vmlinux-2c815938.xz
kernel image: https://storage.googleapis.com/syzbot-assets/8631cb2022d3/bzImage-2c815938.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+a77769...@syzkaller.appspotmail.com

loop2: detected capacity change from 0 to 4096
Kernel panic - not syncing: stack-protector: Kernel stack is corrupted in: __schedule+0x2482/0x4a00
CPU: 1 PID: 16674 Comm: syz-executor.2 Not tainted 6.9.0-rc5-syzkaller-00355-g2c8159388952 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114
panic+0x349/0x860 kernel/panic.c:348
__stack_chk_fail+0x15/0x20 kernel/panic.c:780
__schedule+0x2482/0x4a00
preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:7068
irqentry_exit+0x5e/0x90 kernel/entry/common.c:354
asm_sysvec_reschedule_ipi+0x1a/0x20 arch/x86/include/asm/idtentry.h:707
RIP: 0010:write_inode_now+0x0/0x260 fs/fs-writeback.c:2801
Code: 96 cd 7f ff e9 9f fe ff ff e8 8c cd 7f ff 90 0f 0b 90 eb a2 e8 71 4c 61 09 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <f3> 0f 1e fa 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 e4 e0 48
RSP: 0018:ffffc900110f78a8 EFLAGS: 00000286
RAX: 0000000080000000 RBX: dffffc0000000000 RCX: 0000000000000001
RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff8880603af850
RBP: 0000000000000010 R08: ffff8880603af8db R09: 1ffff1100c075f1b
R10: dffffc0000000000 R11: ffffed100c075f1c R12: ffff8880603af928
R13: ffff8880603af850 R14: ffff8880603afa58 R15: ffff8880603af8d8
iput_final fs/inode.c:1728 [inline]
iput+0x5d7/0x930 fs/inode.c:1767
ntfs_fill_super+0x3ff0/0x49c0 fs/ntfs3/super.c:1480
get_tree_bdev+0x3f7/0x570 fs/super.c:1614
vfs_get_tree+0x90/0x2a0 fs/super.c:1779
do_new_mount+0x2be/0xb40 fs/namespace.c:3352
do_mount fs/namespace.c:3692 [inline]
__do_sys_mount fs/namespace.c:3898 [inline]
__se_sys_mount+0x2d9/0x3c0 fs/namespace.c:3875
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f745fe7f5aa
Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 09 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f7460babef8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f7460babf80 RCX: 00007f745fe7f5aa
RDX: 000000002001f700 RSI: 000000002001f740 RDI: 00007f7460babf40
RBP: 000000002001f700 R08: 00007f7460babf80 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 000000002001f740
R13: 00007f7460babf40 R14: 000000000001f6cc R15: 000000002001f780
</TASK>
Kernel Offset: disabled
Rebooting in 86400 seconds..
----------------
Code disassembly (best guess), 2 bytes skipped:
0: 7f ff jg 0x1
2: e9 9f fe ff ff jmp 0xfffffea6
7: e8 8c cd 7f ff call 0xff7fcd98
c: 90 nop
d: 0f 0b ud2
f: 90 nop
10: eb a2 jmp 0xffffffb4
12: e8 71 4c 61 09 call 0x9614c88
17: 90 nop
18: 90 nop
19: 90 nop
1a: 90 nop
1b: 90 nop
1c: 90 nop
1d: 90 nop
1e: 90 nop
1f: 90 nop
20: 90 nop
21: 90 nop
22: 90 nop
23: 90 nop
24: 90 nop
25: 90 nop
26: 90 nop
27: 90 nop
* 28: f3 0f 1e fa endbr64 <-- trapping instruction
2c: 55 push %rbp
2d: 48 89 e5 mov %rsp,%rbp
30: 41 57 push %r15
32: 41 56 push %r14
34: 41 55 push %r13
36: 41 54 push %r12
38: 53 push %rbx
39: 48 83 e4 e0 and $0xffffffffffffffe0,%rsp
3d: 48 rex.W


---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzk...@googlegroups.com.

syzbot will keep track of this issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.

If the report is already addressed, let syzbot know by replying with:
#syz fix: exact-commit-title

If you want to overwrite report's subsystems, reply with:
#syz set subsystems: new-subsystem
(See the list of subsystem names on the web dashboard)

If the report is a duplicate of another one, reply with:
#syz dup: exact-subject-of-another-report

If you want to undo deduplication, reply with:
#syz undup