------------[ cut here ]------------ DEBUG_RWSEMS_WARN_ON((rwsem_owner(sem) != current) && !rwsem_test_oflags(sem, RWSEM_NONSPINNABLE)): count = 0x0, magic = 0xffff888043b38e38, owner = 0x0, curr 0xffff88801aa0a440, list empty WARNING: CPU: 0 PID: 5317 at kernel/locking/rwsem.c:1368 __up_write kernel/locking/rwsem.c:1367 [inline] WARNING: CPU: 0 PID: 5317 at kernel/locking/rwsem.c:1368 up_write+0x502/0x590 kernel/locking/rwsem.c:1630 Modules linked in: CPU: 0 UID: 0 PID: 5317 Comm: syz.0.0 Not tainted 6.13.0-rc3-syzkaller-00073-geabcdba3ad40 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:__up_write kernel/locking/rwsem.c:1367 [inline] RIP: 0010:up_write+0x502/0x590 kernel/locking/rwsem.c:1630 Code: c7 c7 80 8b 0a 8c 48 c7 c6 a0 8d 0a 8c 48 8b 54 24 28 48 8b 4c 24 18 4d 89 e0 4c 8b 4c 24 30 53 e8 73 22 e6 ff 48 83 c4 08 90 <0f> 0b 90 90 e9 6a fd ff ff 48 c7 c1 54 ae 19 90 80 e1 07 80 c1 03 RSP: 0018:ffffc900019cf9e0 EFLAGS: 00010292 RAX: c27575929353e100 RBX: ffffffff8c0a8c60 RCX: ffff88801aa0a440 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffc900019cfac0 R08: ffffffff81601a42 R09: 1ffff11003f8519a R10: dffffc0000000000 R11: ffffed1003f8519b R12: 0000000000000000 R13: ffff888043b38e38 R14: 1ffff92000339f44 R15: dffffc0000000000 FS: 00007f423d3d86c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f423d3b6fe0 CR3: 0000000037958000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: inode_unlock include/linux/fs.h:823 [inline] vfs_set_acl+0x9c8/0xa60 fs/posix_acl.c:1142 do_setxattr fs/xattr.c:633 [inline] filename_setxattr+0x325/0x430 fs/xattr.c:665 path_setxattrat+0x440/0x510 fs/xattr.c:713 __do_sys_lsetxattr fs/xattr.c:754 [inline] __se_sys_lsetxattr fs/xattr.c:750 [inline] __x64_sys_lsetxattr+0xbf/0xe0 fs/xattr.c:750 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f423c585d29 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:00007f423d3d8038 EFLAGS: 00000246 ORIG_RAX: 00000000000000bd RAX: ffffffffffffffda RBX: 00007f423c776080 RCX: 00007f423c585d29 RDX: 0000000000000000 RSI: 0000000020000100 RDI: 00000000200000c0 RBP: 00007f423c601aa8 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007f423c776080 R15: 00007ffe361ef818