[moderation] [mm?] BUG: unable to handle kernel paging request in mmap_region

[syzbot]

Hello,

syzbot found the following issue on:

HEAD commit: 66ebbdfdeb09 Merge tag 'irq-msi-2024-07-22' of git://git.k..
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=149b88c9980000
kernel config: https://syzkaller.appspot.com/x/.config?x=c6fb524f391446b9
dashboard link: https://syzkaller.appspot.com/bug?extid=f9e5aa8e3350590a739e
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
CC: [Liam.H...@oracle.com ak...@linux-foundation.org linux-...@vger.kernel.org linu...@kvack.org lorenzo...@oracle.com vba...@suse.cz]

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

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/4d0b0b5f7c2c/disk-66ebbdfd.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/49263d19fd78/vmlinux-66ebbdfd.xz
kernel image: https://storage.googleapis.com/syzbot-assets/9fb936b7bd62/bzImage-66ebbdfd.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+f9e5aa...@syzkaller.appspotmail.com

BUG: unable to handle page fault for address: 0000003804000206
#PF: supervisor instruction fetch in kernel mode
#PF: error_code(0x0010) - not-present page
PGD 80000000518a2067 P4D 80000000518a2067 PUD 0
Oops: Oops: 0010 [#1] PREEMPT SMP KASAN PTI
CPU: 0 UID: 0 PID: 14917 Comm: syz.4.3092 Not tainted 6.10.0-syzkaller-12030-g66ebbdfdeb09 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
RIP: 0010:0x3804000206
Code: Unable to access opcode bytes at 0x38040001dc.
RSP: 0018:ffffc90010ebf8f8 EFLAGS: 00010206
RAX: 1ffff11004578d96 RBX: ffff888022bc6cb0 RCX: dffffc0000000000
RDX: ffff88802229a600 RSI: 0000000000000002 RDI: ffff888022bc6ca0
RBP: ffffc90010ebfa30 R08: ffff88802c22b8c7 R09: 1ffff11005845718
R10: dffffc0000000000 R11: 0000003804000206 R12: ffff88802229a600
R13: ffff888022bc6ca0 R14: ffff88802c22b950 R15: ffff88802c22b8b8
FS: 00007f77dcbff6c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000003804000206 CR3: 000000007dc7c000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
mmap_region+0x1891/0x2090 mm/mmap.c:3028
do_mmap+0x8ad/0xfa0 mm/mmap.c:1438
vm_mmap_pgoff+0x1dd/0x3d0 mm/util.c:588
ksys_mmap_pgoff+0x4f1/0x720 mm/mmap.c:1484
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f77dd175f19
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f77dcbff048 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007f77dd305f60 RCX: 00007f77dd175f19
RDX: 0000000000000001 RSI: 0000000000003000 RDI: 0000000020000000
RBP: 00007f77dd1e4e68 R08: 0000000000000003 R09: 0000000000000000
R10: 0000000000000012 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f77dd305f60 R15: 00007ffc05f4c6a8
</TASK>
Modules linked in:
CR2: 0000003804000206
---[ end trace 0000000000000000 ]---
RIP: 0010:0x3804000206
Code: Unable to access opcode bytes at 0x38040001dc.
RSP: 0018:ffffc90010ebf8f8 EFLAGS: 00010206
RAX: 1ffff11004578d96 RBX: ffff888022bc6cb0 RCX: dffffc0000000000
RDX: ffff88802229a600 RSI: 0000000000000002 RDI: ffff888022bc6ca0
RBP: ffffc90010ebfa30 R08: ffff88802c22b8c7 R09: 1ffff11005845718
R10: dffffc0000000000 R11: 0000003804000206 R12: ffff88802229a600
R13: ffff888022bc6ca0 R14: ffff88802c22b950 R15: ffff88802c22b8b8
FS: 00007f77dcbff6c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000003804000206 CR3: 000000007dc7c000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400


---
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