loop0: detected capacity change from 0 to 64 syz.0.0: attempt to access beyond end of device loop0: rw=2049, sector=268435468, nr_sectors = 2 limit=64 ------------[ cut here ]------------ WARNING: CPU: 0 PID: 5323 at fs/inode.c:474 inc_nlink+0x122/0x150 fs/inode.c:474 Modules linked in: CPU: 0 UID: 0 PID: 5323 Comm: syz.0.0 Not tainted 6.15.0-rc4-syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:inc_nlink+0x122/0x150 fs/inode.c:474 Code: e8 ff e9 3a ff ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 4c ff ff ff 48 89 df e8 a9 79 e8 ff e9 3f ff ff ff e8 cf 84 86 ff 90 <0f> 0b 90 eb 80 44 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 50 ff ff ff RSP: 0018:ffffc9000d3175e0 EFLAGS: 00010287 RAX: ffffffff82393a01 RBX: ffff88805203c5d0 RCX: 0000000000100000 RDX: ffffc9000e622000 RSI: 0000000000002d62 RDI: 0000000000002d63 RBP: 0000000000000000 R08: ffffffff8f7ec977 R09: 1ffffffff1efd92e R10: dffffc0000000000 R11: fffffbfff1efd92f R12: dffffc0000000000 R13: 1ffff1100a4078ba R14: ffff88805203c588 R15: ffff88805203c658 FS: 00007f9ee2f8e6c0(0000) GS:ffff88808d6cc000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000001240 CR3: 000000003ff8a000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: inode_inc_link_count include/linux/fs.h:2575 [inline] minix_mkdir+0x44/0x120 fs/minix/namei.c:117 vfs_mkdir+0x303/0x510 fs/namei.c:4359 ovl_do_mkdir fs/overlayfs/overlayfs.h:249 [inline] ovl_workdir_create+0x445/0x810 fs/overlayfs/super.c:330 ovl_make_workdir fs/overlayfs/super.c:669 [inline] ovl_get_workdir+0x324/0x1700 fs/overlayfs/super.c:827 ovl_fill_super+0x1386/0x35d0 fs/overlayfs/super.c:1406 vfs_get_super fs/super.c:1280 [inline] get_tree_nodev+0xb8/0x150 fs/super.c:1299 vfs_get_tree+0x8f/0x2b0 fs/super.c:1759 do_new_mount+0x24a/0xa40 fs/namespace.c:3884 do_mount fs/namespace.c:4224 [inline] __do_sys_mount fs/namespace.c:4435 [inline] __se_sys_mount+0x317/0x410 fs/namespace.c:4412 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xf6/0x210 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f9ee218e969 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:00007f9ee2f8e038 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f9ee23b5fa0 RCX: 00007f9ee218e969 RDX: 0000200000000200 RSI: 00002000000003c0 RDI: 0000000000000000 RBP: 00007f9ee2210ab1 R08: 0000200000001100 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f9ee23b5fa0 R15: 00007ffea6e7efb8