------------[ cut here ]------------
DEBUG_RWSEMS_WARN_ON(!is_rwsem_reader_owned(sem)): count = 0x0, magic = 0xffff0000f12e6a70, owner = 0x0, curr 0xffff0000d8f71bc0, list empty
WARNING: CPU: 0 PID: 5127 at kernel/locking/rwsem.c:1345 __up_read+0x560/0x604 kernel/locking/rwsem.c:1345
Modules linked in:
CPU: 0 PID: 5127 Comm: syz.0.188 Not tainted 6.1.106-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : __up_read+0x560/0x604 kernel/locking/rwsem.c:1345
lr : __up_read+0x560/0x604 kernel/locking/rwsem.c:1345
sp : ffff80001e737860
x29: ffff80001e7378f0 x28: 1ffff00002b380b0 x27: ffff8000159c0000
x26: dfff800000000000 x25: 0000000000000000 x24: ffff0000f12e6ac8
x23: ffff0000d8f71bc0 x22: ffff80001e737880 x21: 0000000000000000
x20: ffff0000f12e6a70 x19: ffff0000f12e6a70 x18: 1fffe00036864576
x17: ffff8000159bd000 x16: ffff800008305944 x15: ffff0001b4322bbc
x14: 1ffff00002b380b0 x13: dfff800000000000 x12: 0000000000000003
x11: 0000000000ff0100 x10: 0000000000000003 x9 : 8c291f26439ab300
x8 : 8c291f26439ab300 x7 : ffff80000827d430 x6 : 0000000000000000
x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000
x2 : ffff80001e7373c0 x1 : ffff8000123dc680 x0 : ffff80019ea0f000
Call trace:
 __up_read+0x560/0x604 kernel/locking/rwsem.c:1345
 up_read+0x38/0x48 kernel/locking/rwsem.c:1616
 inode_unlock_shared include/linux/fs.h:773 [inline]
 lookup_slow+0x6c/0x84 fs/namei.c:1708
 walk_component+0x280/0x36c fs/namei.c:1998
 lookup_last fs/namei.c:2455 [inline]
 path_lookupat+0x13c/0x3d0 fs/namei.c:2479
 filename_lookup+0x1d4/0x4e0 fs/namei.c:2508
 user_path_at_empty+0x5c/0x84 fs/namei.c:2907
 user_path_at include/linux/namei.h:57 [inline]
 do_mount fs/namespace.c:3391 [inline]
 __do_sys_mount fs/namespace.c:3602 [inline]
 __se_sys_mount fs/namespace.c:3579 [inline]
 __arm64_sys_mount+0x428/0x594 fs/namespace.c:3579
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585
irq event stamp: 534
hardirqs last  enabled at (533): [<ffff80000827d4d0>] raw_spin_rq_unlock_irq kernel/sched/sched.h:1367 [inline]
hardirqs last  enabled at (533): [<ffff80000827d4d0>] finish_lock_switch+0xbc/0x1e8 kernel/sched/core.c:5000
hardirqs last disabled at (534): [<ffff800012285e14>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405
softirqs last  enabled at (526): [<ffff8000081c80cc>] softirq_handle_end kernel/softirq.c:414 [inline]
softirqs last  enabled at (526): [<ffff8000081c80cc>] handle_softirqs+0xb84/0xd58 kernel/softirq.c:599
softirqs last disabled at (383): [<ffff800008020174>] __do_softirq+0x14/0x20 kernel/softirq.c:605
---[ end trace 0000000000000000 ]---
------------[ cut here ]------------
DEBUG_RWSEMS_WARN_ON(tmp < 0): count = 0xffffffffffffff00, magic = 0xffff0000f12e6a70, owner = 0x0, curr 0xffff0000d8f71bc0, list empty
WARNING: CPU: 0 PID: 5127 at kernel/locking/rwsem.c:1350 __up_read+0x3c8/0x604 kernel/locking/rwsem.c:1350
Modules linked in:
CPU: 0 PID: 5127 Comm: syz.0.188 Tainted: G        W          6.1.106-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : __up_read+0x3c8/0x604 kernel/locking/rwsem.c:1350
lr : __up_read+0x3c8/0x604 kernel/locking/rwsem.c:1350
sp : ffff80001e737860
x29: ffff80001e7378f0 x28: 1ffff00002b380b0 x27: ffff8000159c0000
x26: dfff800000000000 x25: ffffffffffffff00 x24: ffff0000f12e6ac8
x23: ffff0000f12e6a70 x22: ffffffffffffff00 x21: 0000000000000000
x20: ffff0000d8f71bc0 x19: ffff0000f12e6a70 x18: 1fffe00036864576
x17: 0000000000000000 x16: ffff80001228a15c x15: 0000000000000002
x14: 00000000ffffffff x13: 0000000000000001 x12: 0000000000040000
x11: 000000000001d2bc x10: ffff80001ec7b000 x9 : 8c291f26439ab300
x8 : 8c291f26439ab300 x7 : 0000000000000001 x6 : 0000000000000001
x5 : ffff80001e737158 x4 : ffff800015aa2d40 x3 : ffff80000858d428
x2 : 0000000000000001 x1 : 0000000000000001 x0 : 0000000000000000
Call trace:
 __up_read+0x3c8/0x604 kernel/locking/rwsem.c:1350
 up_read+0x38/0x48 kernel/locking/rwsem.c:1616
 inode_unlock_shared include/linux/fs.h:773 [inline]
 lookup_slow+0x6c/0x84 fs/namei.c:1708
 walk_component+0x280/0x36c fs/namei.c:1998
 lookup_last fs/namei.c:2455 [inline]
 path_lookupat+0x13c/0x3d0 fs/namei.c:2479
 filename_lookup+0x1d4/0x4e0 fs/namei.c:2508
 user_path_at_empty+0x5c/0x84 fs/namei.c:2907
 user_path_at include/linux/namei.h:57 [inline]
 do_mount fs/namespace.c:3391 [inline]
 __do_sys_mount fs/namespace.c:3602 [inline]
 __se_sys_mount fs/namespace.c:3579 [inline]
 __arm64_sys_mount+0x428/0x594 fs/namespace.c:3579
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585
irq event stamp: 569
hardirqs last  enabled at (569): [<ffff800012288228>] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:84 [inline]
hardirqs last  enabled at (569): [<ffff800012288228>] exit_to_kernel_mode+0xe8/0x118 arch/arm64/kernel/entry-common.c:94
hardirqs last disabled at (568): [<ffff800012358820>] preempt_schedule_irq+0xa8/0x1b8 kernel/sched/core.c:6871
softirqs last  enabled at (564): [<ffff8000081c80cc>] softirq_handle_end kernel/softirq.c:414 [inline]
softirqs last  enabled at (564): [<ffff8000081c80cc>] handle_softirqs+0xb84/0xd58 kernel/softirq.c:599
softirqs last disabled at (537): [<ffff800008020174>] __do_softirq+0x14/0x20 kernel/softirq.c:605
---[ end trace 0000000000000000 ]---