DEBUG_RWSEMS_WARN_ON(!is_rwsem_reader_owned(sem)): count = 0x0, magic = 0xffff888069760e18, owner = 0x0, curr 0xffff888021cc5c40, list empty
WARNING: kernel/locking/rwsem.c:1354 at __up_read+0x4f9/0x670 kernel/locking/rwsem.c:1354, CPU#0: syz.0.327/16241
Modules linked in:
CPU: 0 UID: 0 PID: 16241 Comm: syz.0.327 Not tainted 6.19.0-rc5-00002-gb71e635feefc #7 PREEMPT(full) 
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014
RIP: 0010:__up_read+0x5df/0x670 kernel/locking/rwsem.c:1354
Code: 22 4b 8b 49 c7 c2 e0 22 4b 8b 4c 0f 44 d0 48 8b 7c 24 28 48 c7 c6 80 22 4b 8b 4c 89 ea 48 8b 4c 24 20 4d 89 f0 4d 89 f9 41 52 <67> 48 0f b9 3a 48 83 c4 08 e8 03 6f e1 02 e9 6e fb ff ff 48 c7 c1
RSP: 0018:ffffc90011d3fc98 EFLAGS: 00010246
RAX: ffffffff8b4b22c0 RBX: ffff888069760e18 RCX: ffff888069760e18
RDX: 0000000000000000 RSI: ffffffff8b4b2280 RDI: ffffffff8f609dc0
RBP: ffffc90011d3fd78 R08: 0000000000000000 R09: ffff888021cc5c40
R10: ffffffff8b4b22c0 R11: ffffed100d2ec1c5 R12: ffff888069760e70
R13: 0000000000000000 R14: 0000000000000000 R15: ffff888021cc5c40
FS:  00007f03d39ec640(0000) GS:ffff8880994e9000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000008 CR3: 0000000072ecc000 CR4: 0000000000752ef0
PKRU: 00000000
Call Trace:
 <TASK>
 inode_unlock_shared include/linux/fs.h:1052 [inline]
 iterate_dir+0x458/0x570 fs/readdir.c:113
 __do_sys_getdents fs/readdir.c:326 [inline]
 __se_sys_getdents+0xe5/0x250 fs/readdir.c:312
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xe8/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f03d2baf59d
Code: 02 b8 ff ff ff ff c3 66 0f 1f 44 00 00 f3 0f 1e fa 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:00007f03d39ebf98 EFLAGS: 00000246 ORIG_RAX: 000000000000004e
RAX: ffffffffffffffda RBX: 00007f03d2e35fa0 RCX: 00007f03d2baf59d
RDX: 0000000000000018 RSI: 0000000000000000 RDI: 0000000000000006
RBP: 00007f03d2c4b388 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f03d2e36038 R14: 00007f03d2e35fa0 R15: 00007f03d39cc000
 </TASK>
----------------
Code disassembly (best guess):
   0:	22 4b 8b             	and    -0x75(%rbx),%cl
   3:	49 c7 c2 e0 22 4b 8b 	mov    $0xffffffff8b4b22e0,%r10
   a:	4c 0f 44 d0          	cmove  %rax,%r10
   e:	48 8b 7c 24 28       	mov    0x28(%rsp),%rdi
  13:	48 c7 c6 80 22 4b 8b 	mov    $0xffffffff8b4b2280,%rsi
  1a:	4c 89 ea             	mov    %r13,%rdx
  1d:	48 8b 4c 24 20       	mov    0x20(%rsp),%rcx
  22:	4d 89 f0             	mov    %r14,%r8
  25:	4d 89 f9             	mov    %r15,%r9
  28:	41 52                	push   %r10
* 2a:	67 48 0f b9 3a       	ud1    (%edx),%rdi <-- trapping instruction
  2f:	48 83 c4 08          	add    $0x8,%rsp
  33:	e8 03 6f e1 02       	call   0x2e16f3b
  38:	e9 6e fb ff ff       	jmp    0xfffffbab
  3d:	48                   	rex.W
  3e:	c7                   	.byte 0xc7
  3f:	c1                   	.byte 0xc1