[ext4?] BUG: unable to handle kernel paging request in ext4_xattr_set_handle (2)

[syzbot]

Hello,

syzbot found the following issue on:

HEAD commit: 2e84eedb182e Merge branch 'for-next/core' into for-kernelci
git tree: git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci
console output: https://syzkaller.appspot.com/x/log.txt?x=11043f8e480000
kernel config: https://syzkaller.appspot.com/x/.config?x=e8cf742d9a45bfb6
dashboard link: https://syzkaller.appspot.com/bug?extid=5c7caec159b2f588de6c
compiler: Debian clang version 13.0.1-6~deb11u1, GNU ld (GNU Binutils for Debian) 2.35.2
userspace arch: arm64
CC: [adilger...@dilger.ca linux...@vger.kernel.org linux-...@vger.kernel.org ty...@mit.edu]

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

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/acdd02708d19/disk-2e84eedb.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/0929da006e5e/vmlinux-2e84eedb.xz
kernel image: https://storage.googleapis.com/syzbot-assets/728c7b1a181a/Image-2e84eedb.gz.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+5c7cae...@syzkaller.appspotmail.com

Unable to handle kernel paging request at virtual address 1fff80000378c250
Mem abort info:
ESR = 0x0000000096000006
EC = 0x25: DABT (current EL), IL = 32 bits
SET = 0, FnV = 0
EA = 0, S1PTW = 0
FSC = 0x06: level 2 translation fault
Data abort info:
ISV = 0, ISS = 0x00000006
CM = 0, WnR = 0
[1fff80000378c250] address between user and kernel address ranges
Internal error: Oops: 0000000096000006 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 4766 Comm: syz-executor.4 Not tainted 6.2.0-rc5-syzkaller-17291-g2e84eedb182e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
pstate: 004000c5 (nzcv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : generic_test_bit include/asm-generic/bitops/generic-non-atomic.h:128 [inline]
pc : __lock_acquire+0x654/0x3084 kernel/locking/lockdep.c:5025
lr : mark_usage kernel/locking/lockdep.c:4555 [inline]
lr : __lock_acquire+0x630/0x3084 kernel/locking/lockdep.c:5009
sp : ffff80001420b6c0
x29: ffff80001420b7a0 x28: 0000000000000002 x27: ffff00011c05b450
x26: ffff00011c05be20 x25: ffff00011c05be40 x24: ffff00011c05be40
x23: 00000000000000c0
x22: 0000000000000001
x21: 0000000000000000

x20: ffff00011c05b400
x19: 555554aaac1987fe
x18: 00000000000000c0

x17: ffff80000df59158
x16: ffff80000dd97118
x15: ffff00011c05b400

x14: 00000000000000f8
x13: 00000000ffffffff
x12: ffff80000df59158

x11: ffff80000df59158
x10: ffff80000df59158
x9 : 1ffffffff58330f8

x8 : 0000000000000000
x7 : ffff800008876fd0 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000
x2 : 0000000000000008 x1 : ffff00011c05be20 x0 : 0000000000000001
Call trace:
generic_test_bit include/asm-generic/bitops/generic-non-atomic.h:128 [inline]
__lock_acquire+0x654/0x3084 kernel/locking/lockdep.c:5025
lock_acquire+0x100/0x1f8 kernel/locking/lockdep.c:5668
down_write+0x5c/0x88 kernel/locking/rwsem.c:1562
ext4_write_lock_xattr fs/ext4/xattr.h:155 [inline]
ext4_xattr_set_handle+0xd0/0x9a0 fs/ext4/xattr.c:2320
ext4_xattr_set+0x104/0x1d4 fs/ext4/xattr.c:2507
ext4_xattr_security_set+0x4c/0x64 fs/ext4/xattr_security.c:31
__vfs_setxattr+0x290/0x29c fs/xattr.c:202
__vfs_setxattr_noperm+0xcc/0x320 fs/xattr.c:236
__vfs_setxattr_locked+0x16c/0x194 fs/xattr.c:297
vfs_setxattr+0xf4/0x1f4 fs/xattr.c:323
do_setxattr fs/xattr.c:608 [inline]
setxattr fs/xattr.c:631 [inline]
path_setxattr+0x32c/0x424 fs/xattr.c:650
__do_sys_lsetxattr fs/xattr.c:673 [inline]
__se_sys_lsetxattr fs/xattr.c:669 [inline]
__arm64_sys_lsetxattr+0x2c/0x40 fs/xattr.c:669
__invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
invoke_syscall arch/arm64/kernel/syscall.c:52 [inline]
el0_svc_common+0x138/0x220 arch/arm64/kernel/syscall.c:142
do_el0_svc+0x48/0x104 arch/arm64/kernel/syscall.c:193
el0_svc+0x58/0x150 arch/arm64/kernel/entry-common.c:637
el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:584
Code: 350000e8 93407e69 d343fd29 927de529 (f8696949)
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
0: 350000e8 cbnz w8, 0x1c
4: 93407e69 sxtw x9, w19
8: d343fd29 lsr x9, x9, #3
c: 927de529 and x9, x9, #0x1ffffffffffffff8
* 10: f8696949 ldr x9, [x10, x9] <-- trapping instruction


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[syzbot]

Auto-closing this bug as obsolete.
Crashes did not happen for a while, no reproducer and no activity.