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DEBUG_RWSEMS_WARN_ON((rwsem_owner(sem) != current) && !rwsem_test_oflags(sem, RWSEM_NONSPINNABLE)): count = 0x0, magic = 0xffff0001159f0a90, owner = 0x0, curr 0xffff0000d25d5340, list empty
WARNING: CPU: 1 PID: 12249 at kernel/locking/rwsem.c:1372 __up_write kernel/locking/rwsem.c:1371 [inline]
WARNING: CPU: 1 PID: 12249 at kernel/locking/rwsem.c:1372 up_write+0x5c4/0x76c kernel/locking/rwsem.c:1626
Modules linked in:
CPU: 1 PID: 12249 Comm: syz-executor.3 Not tainted 6.1.47-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : __up_write kernel/locking/rwsem.c:1371 [inline]
pc : up_write+0x5c4/0x76c kernel/locking/rwsem.c:1626
lr : __up_write kernel/locking/rwsem.c:1371 [inline]
lr : up_write+0x5c4/0x76c kernel/locking/rwsem.c:1626
sp : ffff80001fce79e0
x29: ffff80001fce7a70 x28: 1ffff00003f9cf68 x27: 1fffe00022b3e15f
x26: dfff800000000000 x25: 1fffe00022b3e153 x24: ffff0001159f0ae8
x23: 0000000000000000 x22: 0000000000000000 x21: ffff0000d25d5340
x20: ffff0001159f0a90 x19: ffff0001159f0a90 x18: 1fffe000368adf76
x17: ffff8000158ad000 x16: ffff800008304af8 x15: ffff0001b456fbbc
x14: 1ffff00002b160b0 x13: dfff800000000000 x12: 0000000000000003
x11: ff8080000aacf728 x10: 0000000000000003 x9 : 22cf42282a1eaa00
x8 : 22cf42282a1eaa00 x7 : ffff80000827c584 x6 : 0000000000000000
x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000
x2 : ffff80001fce7540 x1 : ffff80001227c340 x0 : ffff80019ed6e000
Call trace:
 __up_write kernel/locking/rwsem.c:1371 [inline]
 up_write+0x5c4/0x76c kernel/locking/rwsem.c:1626
 inode_unlock include/linux/fs.h:761 [inline]
 unlock_mount+0x1d8/0x244 fs/namespace.c:2325
 do_new_mount_fc fs/namespace.c:2989 [inline]
 do_new_mount+0x6e4/0x8c4 fs/namespace.c:3042
 path_mount+0x590/0xe58 fs/namespace.c:3370
 do_mount fs/namespace.c:3383 [inline]
 __do_sys_mount fs/namespace.c:3591 [inline]
 __se_sys_mount fs/namespace.c:3568 [inline]
 __arm64_sys_mount+0x45c/0x594 fs/namespace.c:3568
 __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:142
 do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:206
 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:581
irq event stamp: 528
hardirqs last  enabled at (527): [<ffff80000827c624>] raw_spin_rq_unlock_irq kernel/sched/sched.h:1366 [inline]
hardirqs last  enabled at (527): [<ffff80000827c624>] finish_lock_switch+0xbc/0x1e8 kernel/sched/core.c:5000
hardirqs last disabled at (528): [<ffff80001211cf7c>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405
softirqs last  enabled at (8): [<ffff80000803308c>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32
softirqs last disabled at (6): [<ffff800008033058>] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19
---[ end trace 0000000000000000 ]---