------------[ cut here ]------------ DEBUG_RWSEMS_WARN_ON(!is_rwsem_reader_owned(sem)): count = 0x0, magic = 0xffff888032c111f0, owner = 0x0, curr 0xffff88802453c880, list empty WARNING: CPU: 3 PID: 6321 at kernel/locking/rwsem.c:1343 __up_read+0x5fb/0x760 kernel/locking/rwsem.c:1343 Modules linked in: CPU: 3 PID: 6321 Comm: syz-executor314 Not tainted 6.8.0-syzkaller-13182-g484193fecd2b #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 RIP: 0010:__up_read+0x5fb/0x760 kernel/locking/rwsem.c:1343 Code: 3c 02 00 0f 85 c0 00 00 00 48 8b 13 41 57 4c 89 f1 48 c7 c6 c0 c0 2c 8b 4c 8b 4c 24 10 48 c7 c7 60 bf 2c 8b e8 86 81 e5 ff 90 <0f> 0b 90 90 59 e9 fc fa ff ff 48 c7 c7 54 4c e1 8f 48 89 04 24 e8 RSP: 0018:ffffc90005ac7b38 EFLAGS: 00010286 RAX: 0000000000000000 RBX: ffff888032c111f0 RCX: ffffffff814fe149 RDX: ffff88802453c880 RSI: ffffffff814fe156 RDI: 0000000000000001 RBP: ffffffff8fe14c54 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: ffff888032c111f8 R13: 1ffff92000b58f6b R14: ffff888032c111f0 R15: ffffffff8b2cbea0 FS: 00007f56471fa6c0(0000) GS:ffff88806b300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f563edc2000 CR3: 000000002fbda000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: inode_unlock_shared include/linux/fs.h:808 [inline] lookup_slow fs/namei.c:1710 [inline] walk_component+0x35b/0x5b0 fs/namei.c:2004 lookup_last fs/namei.c:2461 [inline] path_lookupat+0x17f/0x770 fs/namei.c:2485 filename_lookup+0x1e5/0x5b0 fs/namei.c:2514 user_path_at_empty+0x42/0x60 fs/namei.c:2921 user_path_at include/linux/namei.h:57 [inline] __do_sys_chdir fs/open.c:558 [inline] __se_sys_chdir fs/open.c:552 [inline] __x64_sys_chdir+0xc2/0x270 fs/open.c:552 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xd2/0x260 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x6d/0x75 RIP: 0033:0x7f5647264d09 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 18 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f56471fa218 EFLAGS: 00000246 ORIG_RAX: 0000000000000050 RAX: ffffffffffffffda RBX: 000000000000001b RCX: 00007f5647264d09 RDX: 00007f5647264d09 RSI: ffffffffffffffb0 RDI: 0000000020000380 RBP: 00007f564730b6b8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f564730b6b0 R13: 00007f564730b6bc R14: 6174656d776f6873 R15: 0030656c69662f2e