Hello,
syzbot found the following issue on:
HEAD commit: d2f51b3516da Merge tag 'rtc-6.7' of git://
git.kernel.org/p..
git tree: upstream
console output:
https://syzkaller.appspot.com/x/log.txt?x=13461237680000
kernel config:
https://syzkaller.appspot.com/x/.config?x=1ffa1cec3b40f3ce
dashboard link:
https://syzkaller.appspot.com/bug?extid=264801e8763e686bc4b9
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
userspace arch: i386
CC: [
almaz.ale...@paragon-software.com linux-...@vger.kernel.org linux-...@vger.kernel.org nt...@lists.linux.dev]
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image (non-bootable):
https://storage.googleapis.com/syzbot-assets/7bc7510fe41f/non_bootable_disk-d2f51b35.raw.xz
vmlinux:
https://storage.googleapis.com/syzbot-assets/9177d822dc8a/vmlinux-d2f51b35.xz
kernel image:
https://storage.googleapis.com/syzbot-assets/83db2cef8c89/bzImage-d2f51b35.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by:
syzbot+264801...@syzkaller.appspotmail.com
</TASK>
Huh VM_FAULT_OOM leaked out to the #PF handler. Retrying PF
loop1: detected capacity change from 0 to 4096
ntfs3: loop1: Different NTFS sector size (2048) and media sector size (512).
BUG: unable to handle page fault for address: ffffc8fff506b9c3
#PF: supervisor write access in kernel mode
#PF: error_code(0x0002) - not-present page
PGD 0 P4D 0
Oops: 0002 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 5715 Comm: syz-executor.1 Not tainted 6.6.0-syzkaller-14651-gd2f51b3516da #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:inode_init_always+0xbf0/0xee0 fs/inode.c:230
Code: 00 00 00 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 bb 01 00 00 48 c7 83 20 02 00 00 00 00 00 00 48 89 df e8 91 d6 23 02 31 <ff> 89 c3 89 c6 e8 46 81 92 ff 85 db 75 21 e8 cd 85 92 ff 65 48 ff
RSP: 0018:ffffc900291af880 EFLAGS: 00010286
RAX: 0000000000000000 RBX: ffff888026d49fd0 RCX: ffffc9000c403000
RDX: 000000000004ff00 RSI: ffffffff8419ee34 RDI: 0000000000000005
RBP: ffff88801d0c4000 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff88801d0c4028
R13: 0000000000000000 R14: ffff888026d4a1f8 R15: ffffffff82c66be0
FS: 0000000000000000(0000) GS:ffff88802c600000(0063) knlGS:00000000f7f73b40
CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: ffffc8fff506b9c3 CR3: 0000000072f93000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
alloc_inode+0x7a/0x220 fs/inode.c:266
iget5_locked fs/inode.c:1269 [inline]
iget5_locked+0x63/0xe0 fs/inode.c:1262
ntfs_iget5+0xd1/0x3810 fs/ntfs3/inode.c:527
ntfs_fill_super+0x385e/0x44a0 fs/ntfs3/super.c:1468
get_tree_bdev+0x3b5/0x650 fs/super.c:1598
vfs_get_tree+0x8c/0x370 fs/super.c:1771
do_new_mount fs/namespace.c:3337 [inline]
path_mount+0x1492/0x1ed0 fs/namespace.c:3664
do_mount fs/namespace.c:3677 [inline]
__do_sys_mount fs/namespace.c:3886 [inline]
__se_sys_mount fs/namespace.c:3863 [inline]
__ia32_sys_mount+0x291/0x310 fs/namespace.c:3863
do_syscall_32_irqs_on arch/x86/entry/common.c:164 [inline]
__do_fast_syscall_32+0x61/0xe0 arch/x86/entry/common.c:230
do_fast_syscall_32+0x33/0x70 arch/x86/entry/common.c:255
entry_SYSENTER_compat_after_hwframe+0x70/0x7a
RIP: 0023:0xf7f78579
Code: b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00
RSP: 002b:00000000f7f733f0 EFLAGS: 00000296 ORIG_RAX: 0000000000000015
RAX: ffffffffffffffda RBX: 00000000f7f73460 RCX: 000000002001f3c0
RDX: 000000002001f380 RSI: 0000000000000000 RDI: 00000000f7f734a0
RBP: 000000002001f380 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000292 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
</TASK>
Modules linked in:
CR2: ffffc8fff506b9c3
---[ end trace 0000000000000000 ]---
RIP: 0010:inode_init_always+0xbf0/0xee0 fs/inode.c:230
Code: 00 00 00 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 bb 01 00 00 48 c7 83 20 02 00 00 00 00 00 00 48 89 df e8 91 d6 23 02 31 <ff> 89 c3 89 c6 e8 46 81 92 ff 85 db 75 21 e8 cd 85 92 ff 65 48 ff
RSP: 0018:ffffc900291af880 EFLAGS: 00010286
RAX: 0000000000000000 RBX: ffff888026d49fd0 RCX: ffffc9000c403000
RDX: 000000000004ff00 RSI: ffffffff8419ee34 RDI: 0000000000000005
RBP: ffff88801d0c4000 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff88801d0c4028
R13: 0000000000000000 R14: ffff888026d4a1f8 R15: ffffffff82c66be0
FS: 0000000000000000(0000) GS:ffff88802c600000(0063) knlGS:00000000f7f73b40
CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: ffffc8fff506b9c3 CR3: 0000000072f93000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess), 2 bytes skipped:
0: 10 06 adc %al,(%rsi)
2: 03 74 b4 01 add 0x1(%rsp,%rsi,4),%esi
6: 10 07 adc %al,(%rdi)
8: 03 74 b0 01 add 0x1(%rax,%rsi,4),%esi
c: 10 08 adc %cl,(%rax)
e: 03 74 d8 01 add 0x1(%rax,%rbx,8),%esi
1e: 00 51 52 add %dl,0x52(%rcx)
21: 55 push %rbp
22: 89 e5 mov %esp,%ebp
24: 0f 34 sysenter
26: cd 80 int $0x80
* 28: 5d pop %rbp <-- trapping instruction
29: 5a pop %rdx
2a: 59 pop %rcx
2b: c3 ret
2c: 90 nop
2d: 90 nop
2e: 90 nop
2f: 90 nop
30: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi
37: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi
---
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