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DEBUG_RWSEMS_WARN_ON((rwsem_owner(sem) != current) && !rwsem_test_oflags(sem, RWSEM_NONSPINNABLE)): count = 0x0, magic = 0xffff00010707f1d0, owner = 0x0, curr 0xffff0000d1118000, list empty
WARNING: CPU: 1 PID: 6286 at kernel/locking/rwsem.c:1342 __up_write kernel/locking/rwsem.c:1341 [inline]
WARNING: CPU: 1 PID: 6286 at kernel/locking/rwsem.c:1342 up_write+0x384/0x438 kernel/locking/rwsem.c:1594
Modules linked in:
CPU: 1 PID: 6286 Comm: syz-executor.1 Not tainted 5.15.127-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:1341 [inline]
pc : up_write+0x384/0x438 kernel/locking/rwsem.c:1594
lr : __up_write kernel/locking/rwsem.c:1341 [inline]
lr : up_write+0x384/0x438 kernel/locking/rwsem.c:1594
sp : ffff80001f1c7a30
x29: ffff80001f1c7a40 x28: 1ffff00003e38f60 x27: 1fffe000180a67ac
x26: dfff800000000000 x25: 1fffe00020e0fe47 x24: ffff00010707f228
x23: 0000000000000000 x22: 0000000000000000 x21: ffff0000d1118000
x20: ffff00010707f1d0 x19: ffff00010707f1d0 x18: 1fffe00036902f8e
x17: 1fffe00036902f8e x16: ffff800011967c34 x15: ffff80001499f180
x14: 1ffff0000292006a x13: ffffffffffffffff x12: 0000000000040000
x11: 0000000000008189 x10: ffff8000203bc000 x9 : ea59b9406e7d2b00
x8 : ea59b9406e7d2b00 x7 : 0000000000000000 x6 : 0000000000000000
x5 : 0000000000000080 x4 : 0000000000000000 x3 : ffff80000a958780
x2 : ffff0001b4817d10 x1 : 0000000100000000 x0 : 00000000000000bd
Call trace:
 __up_write kernel/locking/rwsem.c:1341 [inline]
 up_write+0x384/0x438 kernel/locking/rwsem.c:1594
 inode_unlock include/linux/fs.h:792 [inline]
 unlock_mount+0x1d8/0x244 fs/namespace.c:2281
 do_new_mount_fc fs/namespace.c:2943 [inline]
 do_new_mount+0x6e4/0x8c4 fs/namespace.c:2996
 path_mount+0x590/0x104c fs/namespace.c:3324
 do_mount fs/namespace.c:3337 [inline]
 __do_sys_mount fs/namespace.c:3545 [inline]
 __se_sys_mount fs/namespace.c:3522 [inline]
 __arm64_sys_mount+0x510/0x5e0 fs/namespace.c:3522
 __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:596
 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:614
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
irq event stamp: 156
hardirqs last  enabled at (155): [<ffff800008268c74>] raw_spin_rq_unlock_irq kernel/sched/sched.h:1338 [inline]
hardirqs last  enabled at (155): [<ffff800008268c74>] finish_lock_switch+0xbc/0x1e8 kernel/sched/core.c:4780
hardirqs last disabled at (156): [<ffff8000119632c8>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:387
softirqs last  enabled at (8): [<ffff8000080300b4>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:31
softirqs last disabled at (6): [<ffff800008030080>] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:18
---[ end trace ba2213d414171b78 ]---