------------[ cut here ]------------
DEBUG_LOCKS_WARN_ON(1)
WARNING: CPU: 1 PID: 23948 at kernel/locking/lockdep.c:201 check_wait_context kernel/locking/lockdep.c:4686 [inline]
WARNING: CPU: 1 PID: 23948 at kernel/locking/lockdep.c:201 __lock_acquire+0x774/0x7638 kernel/locking/lockdep.c:4962
Modules linked in:
CPU: 1 PID: 23948 Comm: syz.0.8889 Not tainted 5.15.176-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
pstate: 604000c5 (nZCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : check_wait_context kernel/locking/lockdep.c:4686 [inline]
pc : __lock_acquire+0x774/0x7638 kernel/locking/lockdep.c:4962
lr : hlock_class kernel/locking/lockdep.c:201 [inline]
lr : check_wait_context kernel/locking/lockdep.c:4686 [inline]
lr : __lock_acquire+0x768/0x7638 kernel/locking/lockdep.c:4962
sp : ffff800021907000
x29: ffff8000219072a0 x28: ffff0000d25e89d8 x27: ffff0000d25e8a50
x26: ffff0000d25e8000 x25: 0000000000000002 x24: 1fffe0001a4bd14a
x23: ffff0000d25e8a30 x22: 00000000000010a4 x21: 0000000000000000
x20: ffff8000174d0050 x19: 0000001000000000 x18: 0000000000000002
x17: 0000000000000002 x16: ffff800011b4c240 x15: 00000000ffffffff
x14: ffff0000d25e8000 x13: 000000000000d8a8 x12: dfff800000000000
x11: 0000000000003a84 x10: ffff800020469000 x9 : 66c226d105b9dc00
x8 : 0000000000000000 x7 : 000000000000d8a8 x6 : 000000000000d858
x5 : ffff800021906778 x4 : ffff800014c297d0 x3 : ffff8000085567f8
x2 : 0000000000000001 x1 : 0000000100000001 x0 : 0000000000000016
Call trace:
check_wait_context kernel/locking/lockdep.c:4686 [inline]
__lock_acquire+0x774/0x7638 kernel/locking/lockdep.c:4962
lock_acquire+0x240/0x77c kernel/locking/lockdep.c:5623
__raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline]
_raw_spin_lock+0xb0/0x10c kernel/locking/spinlock.c:154
spin_lock include/linux/spinlock.h:363 [inline]
ocfs2_is_hard_readonly fs/ocfs2/ocfs2.h:624 [inline]
ocfs2_inode_lock_full_nested+0x12c/0x1930 fs/ocfs2/dlmglue.c:2443
ocfs2_inode_lock_tracker+0x1ec/0x63c fs/ocfs2/dlmglue.c:2690
ocfs2_permission+0xc0/0x1c4 fs/ocfs2/file.c:1352
do_inode_permission fs/namei.c:459 [inline]
inode_permission+0x1d0/0x3b4 fs/namei.c:526
xattr_permission+0x100/0x468 fs/xattr.c:138
__vfs_removexattr_locked+0x6c/0x380 fs/xattr.c:493
vfs_removexattr+0xe0/0x23c fs/xattr.c:527
removexattr fs/xattr.c:857 [inline]
path_removexattr+0x1ec/0x2ec fs/xattr.c:871
__do_sys_removexattr fs/xattr.c:885 [inline]
__se_sys_removexattr fs/xattr.c:882 [inline]
__arm64_sys_removexattr+0x60/0x78 fs/xattr.c:882
__invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608
el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626
el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
irq event stamp: 5073
hardirqs last enabled at (5073): [<ffff8000088d6348>] kasan_quarantine_put+0xdc/0x204 mm/kasan/quarantine.c:231
hardirqs last disabled at (5072): [<ffff8000088d6308>] kasan_quarantine_put+0x9c/0x204 mm/kasan/quarantine.c:204
softirqs last enabled at (5046): [<ffff8000080309b8>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:31
softirqs last disabled at (5044): [<ffff800008030984>] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:18
---[ end trace 15c7d3464d9730a8 ]---
Unable to handle kernel paging request at virtual address dfff800000000017
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
[dfff800000000017] address between user and kernel address ranges
Internal error: Oops: 0000000096000006 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 23948 Comm: syz.0.8889 Tainted: G W 5.15.176-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
pstate: 604000c5 (nZCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : check_wait_context kernel/locking/lockdep.c:4686 [inline]
pc : __lock_acquire+0x550/0x7638 kernel/locking/lockdep.c:4962
lr : hlock_class kernel/locking/lockdep.c:201 [inline]
lr : check_wait_context kernel/locking/lockdep.c:4686 [inline]
lr : __lock_acquire+0x768/0x7638 kernel/locking/lockdep.c:4962
sp : ffff800021907000
x29: ffff8000219072a0 x28: ffff0000d25e89d8 x27: ffff0000d25e8a50
x26: ffff0000d25e8000 x25: 0000000000000002 x24: 1fffe0001a4bd14a
x23: ffff0000d25e8a30 x22: 00000000000010a4 x21: 0000000000000000
x20: ffff8000174d0050 x19: 00000000000000b8 x18: 0000000000000002
x17: 0000000000000002 x16: ffff800011b4c240 x15: 00000000ffffffff
x14: ffff0000d25e8000 x13: 000000000000d8a8 x12: dfff800000000000
x11: 0000000000003a84 x10: ffff800020469000 x9 : 66c226d105b9dc00
x8 : 0000000000000017 x7 : 000000000000d8a8 x6 : 000000000000d858
x5 : ffff800021906778 x4 : ffff800014c297d0 x3 : ffff8000085567f8
x2 : 0000000000000001 x1 : 0000000100000001 x0 : 0000000000000016
Call trace:
check_wait_context kernel/locking/lockdep.c:4686 [inline]
__lock_acquire+0x550/0x7638 kernel/locking/lockdep.c:4962
lock_acquire+0x240/0x77c kernel/locking/lockdep.c:5623
__raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline]
_raw_spin_lock+0xb0/0x10c kernel/locking/spinlock.c:154
spin_lock include/linux/spinlock.h:363 [inline]
ocfs2_is_hard_readonly fs/ocfs2/ocfs2.h:624 [inline]
ocfs2_inode_lock_full_nested+0x12c/0x1930 fs/ocfs2/dlmglue.c:2443
ocfs2_inode_lock_tracker+0x1ec/0x63c fs/ocfs2/dlmglue.c:2690
ocfs2_permission+0xc0/0x1c4 fs/ocfs2/file.c:1352
do_inode_permission fs/namei.c:459 [inline]
inode_permission+0x1d0/0x3b4 fs/namei.c:526
xattr_permission+0x100/0x468 fs/xattr.c:138
__vfs_removexattr_locked+0x6c/0x380 fs/xattr.c:493
vfs_removexattr+0xe0/0x23c fs/xattr.c:527
removexattr fs/xattr.c:857 [inline]
path_removexattr+0x1ec/0x2ec fs/xattr.c:871
__do_sys_removexattr fs/xattr.c:885 [inline]
__se_sys_removexattr fs/xattr.c:882 [inline]
__arm64_sys_removexattr+0x60/0x78 fs/xattr.c:882
__invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608
el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626
el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
Code: 34000ee8 aa1f03e8 9102e113 d343fe68 (38ec6908)
---[ end trace 15c7d3464d9730a9 ]---
----------------
Code disassembly (best guess):
0: 34000ee8 cbz w8, 0x1dc
4: aa1f03e8 mov x8, xzr
8: 9102e113 add x19, x8, #0xb8
c: d343fe68 lsr x8, x19, #3
* 10: 38ec6908 ldrsb w8, [x8, x12] <-- trapping instruction