------------[ cut here ]------------ DEBUG_RWSEMS_WARN_ON((rwsem_owner(sem) != current) && !rwsem_test_oflags(sem, RWSEM_NONSPINNABLE)): count = 0x0, magic = 0xffff8880575e8328, owner = 0x0, curr 0xffff888032073c80, list empty WARNING: kernel/locking/rwsem.c:1381 at __up_write kernel/locking/rwsem.c:1380 [inline], CPU#1: syz.2.13/6015 WARNING: kernel/locking/rwsem.c:1381 at up_write+0x3a2/0x420 kernel/locking/rwsem.c:1643, CPU#1: syz.2.13/6015 Modules linked in: CPU: 1 UID: 0 PID: 6015 Comm: syz.2.13 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 RIP: 0010:__up_write kernel/locking/rwsem.c:1380 [inline] RIP: 0010:up_write+0x3a2/0x420 kernel/locking/rwsem.c:1643 Code: d0 48 c7 c7 e0 ff 6a 8b 48 c7 c6 00 02 6b 8b 48 8b 14 24 4c 89 f1 4d 89 e0 4c 8b 4c 24 08 41 52 e8 a3 2b e6 ff 48 83 c4 08 90 <0f> 0b 90 90 e9 6d fd ff ff 48 c7 c1 94 a4 7d 8f 80 e1 07 80 c1 03 RSP: 0018:ffffc9000b377910 EFLAGS: 00010292 RAX: ad524aa3a8e10f00 RBX: ffff8880575e8328 RCX: 0000000000080000 RDX: ffffc900101e6000 RSI: 00000000000089c9 RDI: 00000000000089ca RBP: dffffc0000000000 R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: fffffbfff1bba6f0 R12: 0000000000000000 R13: ffff8880575e8380 R14: ffff8880575e8328 R15: 1ffff1100aebd066 FS: 00007fa0a3ab06c0(0000) GS:ffff888125fe2000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fa0a3aaff98 CR3: 0000000076bde000 CR4: 00000000003526f0 Call Trace: inode_unlock include/linux/fs.h:1073 [inline] open_last_lookups fs/namei.c:3903 [inline] path_openat+0x1986/0x3830 fs/namei.c:4131 do_filp_open+0x1fa/0x410 fs/namei.c:4161 do_sys_openat2+0x121/0x1c0 fs/open.c:1437 do_sys_open fs/open.c:1452 [inline] __do_sys_openat fs/open.c:1468 [inline] __se_sys_openat fs/open.c:1463 [inline] __x64_sys_openat+0x138/0x170 fs/open.c:1463 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fa0a2b8efc9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fa0a3ab0038 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007fa0a2de6270 RCX: 00007fa0a2b8efc9 RDX: 0000000000000042 RSI: 00002000000013c0 RDI: ffffffffffffff9c RBP: 00007fa0a2c11f91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fa0a2de6308 R14: 00007fa0a2de6270 R15: 00007fff21287468