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DEBUG_RWSEMS_WARN_ON((rwsem_owner(sem) != current) && !rwsem_test_oflags(sem, RWSEM_NONSPINNABLE)): count = 0x0, magic = 0xffff00011de2ccf0, owner = 0x0, curr 0xffff00010fa2d340, list empty
WARNING: CPU: 1 PID: 15566 at kernel/locking/rwsem.c:1372 __up_write kernel/locking/rwsem.c:1371 [inline]
WARNING: CPU: 1 PID: 15566 at kernel/locking/rwsem.c:1372 up_write+0x5c4/0x76c kernel/locking/rwsem.c:1626
Modules linked in:
CPU: 1 PID: 15566 Comm: syz-executor.1 Not tainted 6.1.43-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023
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 : ffff80001e1b79e0
x29: ffff80001e1b7a70 x28: 1ffff00003c36f68 x27: 1fffe00023bc59ab
x26: dfff800000000000 x25: 1fffe00023bc599f x24: ffff00011de2cd48
x23: 0000000000000000 x22: 0000000000000000 x21: ffff00010fa2d340
x20: ffff00011de2ccf0 x19: ffff00011de2ccf0 x18: 1fffe000368ae376
x17: ffff80001589d000 x16: ffff800008305550 x15: ffff0001b4571bbc
x14: 1ffff00002b140b0 x13: dfff800000000000 x12: 0000000000000003
x11: ff8080000aacc2e8 x10: 0000000000000003 x9 : 03484c5eafdb3900
x8 : 03484c5eafdb3900 x7 : ffff80000827ce34 x6 : 0000000000000000
x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000
x2 : ffff80001e1b7540 x1 : ffff80001226c340 x0 : ffff80019ed80000
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: 180
hardirqs last  enabled at (179): [<ffff80000827ced4>] raw_spin_rq_unlock_irq kernel/sched/sched.h:1367 [inline]
hardirqs last  enabled at (179): [<ffff80000827ced4>] finish_lock_switch+0xbc/0x1e8 kernel/sched/core.c:5000
hardirqs last disabled at (180): [<ffff80001211387c>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405
softirqs last  enabled at (162): [<ffff800008020d74>] softirq_handle_end kernel/softirq.c:414 [inline]
softirqs last  enabled at (162): [<ffff800008020d74>] __do_softirq+0xc14/0xea0 kernel/softirq.c:600
softirqs last disabled at (147): [<ffff80000802a994>] ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:79
---[ end trace 0000000000000000 ]---