loop0: detected capacity change from 0 to 32768 ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. ------------[ cut here ]------------ kernel BUG at fs/ocfs2/aops.c:1179! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5601 Comm: syz.0.16 Not tainted 6.11.0-syzkaller-05319-g4a39ac5b7d62-dirty #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_write_cluster fs/ocfs2/aops.c:1179 [inline] RIP: 0010:ocfs2_write_cluster_by_desc+0x1fc7/0x1ff0 fs/ocfs2/aops.c:1240 Code: 03 48 8d bc 24 30 02 00 00 48 c7 c6 39 81 10 8e ba 7e 04 00 00 48 c7 c1 00 05 49 8c e8 92 94 1d 00 90 0f 0b e8 fa 7c 12 fe 90 <0f> 0b e8 f2 7c 12 fe 90 0f 0b e8 ea 7c 12 fe 90 0f 0b e8 e2 7c 12 RSP: 0018:ffffc90002126e20 EFLAGS: 00010293 RAX: ffffffff83816206 RBX: ffff888043dd96e0 RCX: ffff88801f7d4880 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90002127170 R08: ffffffff8381496e R09: 1ffff110087bb2ac R10: dffffc0000000000 R11: ffffed10087bb2ad R12: 0000000000000000 R13: ffff8880130be000 R14: ffff888043dd96b8 R15: 0000000000000000 FS: 00007f815880c6c0(0000) GS:ffff88801fe00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020201000 CR3: 00000000232b0000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ocfs2_write_begin_nolock+0x3a2f/0x4ec0 fs/ocfs2/aops.c:1816 ocfs2_write_begin+0x205/0x3a0 fs/ocfs2/aops.c:1903 generic_perform_write+0x37e/0x730 mm/filemap.c:4025 ocfs2_file_write_iter+0x17b1/0x1f50 fs/ocfs2/file.c:2456 new_sync_write fs/read_write.c:590 [inline] vfs_write+0xa6d/0xc90 fs/read_write.c:683 ksys_write+0x1a0/0x2c0 fs/read_write.c:736 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: 0033:0x7f815797def9 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:00007f815880c038 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f8157b35f80 RCX: 00007f815797def9 RDX: 000000000208e24b RSI: 0000000020000240 RDI: 0000000000000004 RBP: 00007f81579f0b76 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f8157b35f80 R15: 00007ffe1f4b9668 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:ocfs2_write_cluster fs/ocfs2/aops.c:1179 [inline] RIP: 0010:ocfs2_write_cluster_by_desc+0x1fc7/0x1ff0 fs/ocfs2/aops.c:1240 Code: 03 48 8d bc 24 30 02 00 00 48 c7 c6 39 81 10 8e ba 7e 04 00 00 48 c7 c1 00 05 49 8c e8 92 94 1d 00 90 0f 0b e8 fa 7c 12 fe 90 <0f> 0b e8 f2 7c 12 fe 90 0f 0b e8 ea 7c 12 fe 90 0f 0b e8 e2 7c 12 RSP: 0018:ffffc90002126e20 EFLAGS: 00010293 RAX: ffffffff83816206 RBX: ffff888043dd96e0 RCX: ffff88801f7d4880 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90002127170 R08: ffffffff8381496e R09: 1ffff110087bb2ac R10: dffffc0000000000 R11: ffffed10087bb2ad R12: 0000000000000000 R13: ffff8880130be000 R14: ffff888043dd96b8 R15: 0000000000000000 FS: 00007f815880c6c0(0000) GS:ffff88801fe00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020201000 CR3: 00000000232b0000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400