loop0: detected capacity change from 0 to 262144 JBD2: Ignoring recovery information on journal ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. usb 5-1: USB disconnect, device number 2 overlayfs: failed to resolve './file0': -2 loop0: detected capacity change from 262144 to 262143 ------------[ cut here ]------------ kernel BUG at fs/ocfs2/suballoc.c:804! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5313 Comm: syz.0.0 Not tainted 6.13.0-rc1-syzkaller-00337-g7503345ac5f5 #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:ocfs2_reserve_suballoc_bits+0x4798/0x4e70 fs/ocfs2/suballoc.c:804 Code: e1 07 80 c1 03 38 c1 0f 8c 75 dd ff ff 48 8d bc 24 b0 01 00 00 e8 e8 55 68 fe e9 63 dd ff ff e8 ce 62 2e 08 e8 09 68 fd fd 90 <0f> 0b e8 01 68 fd fd 48 c7 c7 20 ff e2 8e 48 8b 74 24 20 48 89 da RSP: 0018:ffffc9000d3dece0 EFLAGS: 00010283 RAX: ffffffff83a20a07 RBX: 00000000ffffffff RCX: 0000000000100000 RDX: ffffc9000ea42000 RSI: 00000000000009cf RDI: 00000000000009d0 RBP: ffffc9000d3df1d0 R08: ffffffff83a1c4e5 R09: 1ffffffff20329a6 R10: dffffc0000000000 R11: fffffbfff20329a7 R12: 1ffff92001a7be1c R13: ffff8880127e9a00 R14: ffff88803552e000 R15: dffffc0000000000 FS: 00007f85547366c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f3801d70000 CR3: 0000000044278000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ocfs2_reserve_new_metadata_blocks+0x41c/0x9c0 fs/ocfs2/suballoc.c:982 ocfs2_mknod+0x143a/0x2b30 fs/ocfs2/namei.c:345 ocfs2_create+0x1ab/0x470 fs/ocfs2/namei.c:672 lookup_open fs/namei.c:3649 [inline] open_last_lookups fs/namei.c:3748 [inline] path_openat+0x1c03/0x3590 fs/namei.c:3984 do_filp_open+0x27f/0x4e0 fs/namei.c:4014 do_sys_openat2+0x13e/0x1d0 fs/open.c:1402 do_sys_open fs/open.c:1417 [inline] __do_sys_open fs/open.c:1425 [inline] __se_sys_open fs/open.c:1421 [inline] __x64_sys_open+0x225/0x270 fs/open.c:1421 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: 0033:0x7f855397fed9 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:00007f8554736058 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 00007f8553b45fa0 RCX: 00007f855397fed9 RDX: 0000000000000000 RSI: 000000000010b942 RDI: 0000000020000080 RBP: 00007f85539f3cc8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f8553b45fa0 R15: 00007ffe231d66f8 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:ocfs2_reserve_suballoc_bits+0x4798/0x4e70 fs/ocfs2/suballoc.c:804 Code: e1 07 80 c1 03 38 c1 0f 8c 75 dd ff ff 48 8d bc 24 b0 01 00 00 e8 e8 55 68 fe e9 63 dd ff ff e8 ce 62 2e 08 e8 09 68 fd fd 90 <0f> 0b e8 01 68 fd fd 48 c7 c7 20 ff e2 8e 48 8b 74 24 20 48 89 da RSP: 0018:ffffc9000d3dece0 EFLAGS: 00010283 RAX: ffffffff83a20a07 RBX: 00000000ffffffff RCX: 0000000000100000 RDX: ffffc9000ea42000 RSI: 00000000000009cf RDI: 00000000000009d0 RBP: ffffc9000d3df1d0 R08: ffffffff83a1c4e5 R09: 1ffffffff20329a6 R10: dffffc0000000000 R11: fffffbfff20329a7 R12: 1ffff92001a7be1c R13: ffff8880127e9a00 R14: ffff88803552e000 R15: dffffc0000000000 FS: 00007f85547366c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f3801d6f000 CR3: 0000000044278000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400