------------[ cut here ]------------ DEBUG_RWSEMS_WARN_ON((rwsem_owner(sem) != current) && !rwsem_test_oflags(sem, RWSEM_NONSPINNABLE)): count = 0x0, magic = 0xffff88804c8c1bc0, owner = 0x0, curr 0xffff88801abac880, list empty WARNING: CPU: 0 PID: 5720 at kernel/locking/rwsem.c:1369 __up_write kernel/locking/rwsem.c:1369 [inline] WARNING: CPU: 0 PID: 5720 at kernel/locking/rwsem.c:1369 up_write+0x469/0x520 kernel/locking/rwsem.c:1632 Modules linked in: CPU: 0 PID: 5720 Comm: syz-executor.3 Not tainted 6.9.0-syzkaller-07726-g3c999d1ae3c7 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 RIP: 0010:__up_write kernel/locking/rwsem.c:1369 [inline] RIP: 0010:up_write+0x469/0x520 kernel/locking/rwsem.c:1632 Code: ea 03 80 3c 02 00 75 53 48 8b 13 4d 89 f1 41 55 4d 89 f8 4c 89 e1 48 c7 c6 80 ac 2c 8b 48 c7 c7 a0 ab 2c 8b e8 98 a5 e5 ff 90 <0f> 0b 90 90 5a e9 96 fc ff ff 48 89 ef e8 25 34 80 00 e9 03 fd ff RSP: 0018:ffffc9000d95fdf8 EFLAGS: 00010286 RAX: 0000000000000000 RBX: ffff88804c8c1bc0 RCX: ffffc900262cb000 RDX: 0000000000040000 RSI: ffffffff81510486 RDI: 0000000000000001 RBP: ffff88804c8c1bc8 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: ffff88804c8c1bc0 R13: ffffffff8b2caae0 R14: ffff88801abac880 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff88802c000000(0063) knlGS:00000000f5e29b40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 00000000f73d4fcc CR3: 000000002bd1c000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: inode_unlock include/linux/fs.h:796 [inline] done_path_create fs/namei.c:3951 [inline] do_mkdirat+0x1ca/0x3a0 fs/namei.c:4157 __do_sys_mkdirat fs/namei.c:4169 [inline] __se_sys_mkdirat fs/namei.c:4167 [inline] __ia32_sys_mkdirat+0x84/0xb0 fs/namei.c:4167 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline] __do_fast_syscall_32+0x75/0x120 arch/x86/entry/common.c:386 do_fast_syscall_32+0x32/0x80 arch/x86/entry/common.c:411 entry_SYSENTER_compat_after_hwframe+0x84/0x8e RIP: 0023:0xf7258579 Code: b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00 RSP: 002b:00000000f5e295ac EFLAGS: 00000292 ORIG_RAX: 0000000000000128 RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000020000280 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 ---------------- Code disassembly (best guess), 2 bytes skipped: 0: 10 06 adc %al,(%rsi) 2: 03 74 b4 01 add 0x1(%rsp,%rsi,4),%esi 6: 10 07 adc %al,(%rdi) 8: 03 74 b0 01 add 0x1(%rax,%rsi,4),%esi c: 10 08 adc %cl,(%rax) e: 03 74 d8 01 add 0x1(%rax,%rbx,8),%esi 1e: 00 51 52 add %dl,0x52(%rcx) 21: 55 push %rbp 22: 89 e5 mov %esp,%ebp 24: 0f 34 sysenter 26: cd 80 int $0x80 * 28: 5d pop %rbp <-- trapping instruction 29: 5a pop %rdx 2a: 59 pop %rcx 2b: c3 ret 2c: 90 nop 2d: 90 nop 2e: 90 nop 2f: 90 nop 30: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi 37: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi