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DEBUG_RWSEMS_WARN_ON((rwsem_owner(sem) != current) && !rwsem_test_oflags(sem, RWSEM_NONSPINNABLE)): count = 0x0, magic = 0xffff000105a54ac8, owner = 0x0, curr 0xffff0000ccd81bc0, list empty
WARNING: CPU: 1 PID: 5843 at kernel/locking/rwsem.c:1372 __up_write kernel/locking/rwsem.c:1371 [inline]
WARNING: CPU: 1 PID: 5843 at kernel/locking/rwsem.c:1372 up_write+0x494/0x5bc kernel/locking/rwsem.c:1626
Modules linked in:
CPU: 1 PID: 5843 Comm: syz.5.510 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
pc : __up_write kernel/locking/rwsem.c:1371 [inline]
pc : up_write+0x494/0x5bc kernel/locking/rwsem.c:1626
lr : __up_write kernel/locking/rwsem.c:1371 [inline]
lr : up_write+0x494/0x5bc kernel/locking/rwsem.c:1626
sp : ffff8000219b7c00
x29: ffff8000219b7c10 x28: 0000000000000000 x27: ffff8000152a3ac0
x26: dfff800000000000 x25: 1fffe00020b4a966 x24: ffff000105a54b20
x23: 0000000000000000 x22: 0000000000000000 x21: ffff0000ccd81bc0
x20: ffff000105a54ac8 x19: ffff000105a54ac8 x18: ffff800011b9bf60
x17: 0000000000000000 x16: ffff8000082d93d8 x15: 0000000000000002
x14: 0000000000000001 x13: 1fffe00033eaa5a3 x12: 0000000000080000
x11: 000000000001e8e8 x10: ffff8000275e9000 x9 : ba257532300e6400
x8 : ba257532300e6400 x7 : 0000000000000001 x6 : 0000000000000001
x5 : ffff8000219b7698 x4 : ffff800015304cc0 x3 : ffff8000085389e4
x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000000
Call trace:
 __up_write kernel/locking/rwsem.c:1371 [inline]
 up_write+0x494/0x5bc kernel/locking/rwsem.c:1626
 inode_unlock include/linux/fs.h:763 [inline]
 done_path_create fs/namei.c:3935 [inline]
 do_mknodat+0x3c0/0x558 fs/namei.c:4058
 __do_sys_mknodat fs/namei.c:4071 [inline]
 __se_sys_mknodat fs/namei.c:4068 [inline]
 __arm64_sys_mknodat+0xb0/0xcc fs/namei.c:4068
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b4 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x58/0x130 arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x128 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: 390
hardirqs last  enabled at (389): [<ffff80000830fbe0>] __up_console_sem+0xb4/0xfc kernel/printk/printk.c:261
hardirqs last disabled at (390): [<ffff800011a38ab4>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405
softirqs last  enabled at (318): [<ffff8000081ac410>] softirq_handle_end kernel/softirq.c:439 [inline]
softirqs last  enabled at (318): [<ffff8000081ac410>] handle_softirqs+0xaec/0xc60 kernel/softirq.c:624
softirqs last disabled at (303): [<ffff800008020164>] __do_softirq+0x14/0x20 kernel/softirq.c:630
---[ end trace 0000000000000000 ]---