------------[ cut here ]------------ kernel BUG at fs/ocfs2/suballoc.c:1380! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5328 Comm: syz.0.0 Not tainted 6.15.0-rc1-syzkaller-00288-ge618ee89561b #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:ocfs2_block_group_set_bits+0x891/0x9d0 fs/ocfs2/suballoc.c:1380 Code: 89 f1 80 e1 07 fe c1 38 c1 0f 8c ef fe ff ff 4c 89 f7 e8 52 05 5d fe e9 e2 fe ff ff e8 28 dd f2 fd 90 0f 0b e8 20 dd f2 fd 90 <0f> 0b f3 0f 1e fa 65 44 8b 35 15 48 98 0f bf 07 00 00 00 44 89 f6 RSP: 0018:ffffc9000d407300 EFLAGS: 00010293 RAX: ffffffff83d07810 RBX: 0000000000000054 RCX: ffff888000c08000 RDX: 0000000000000000 RSI: 0000000000000116 RDI: 0000000000000054 RBP: ffffc9000d407420 R08: ffffffff83d070bf R09: 0000000000000116 R10: 0000000000000006 R11: ffff888000c08000 R12: 0000000000000116 R13: dffffc0000000000 R14: ffff888042da4000 R15: ffff88804594cfb8 FS: 00007f60de8656c0(0000) GS:ffff88808c594000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f6ef7f74580 CR3: 0000000042f8c000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ocfs2_move_extent fs/ocfs2/move_extents.c:687 [inline] __ocfs2_move_extents_range+0x3517/0x4470 fs/ocfs2/move_extents.c:860 ocfs2_move_extents+0x3f0/0xac0 fs/ocfs2/move_extents.c:927 ocfs2_ioctl_move_extents+0x61c/0x840 fs/ocfs2/move_extents.c:1053 ocfs2_ioctl+0x19b/0x7f0 fs/ocfs2/ioctl.c:946 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:906 [inline] __se_sys_ioctl+0xf1/0x160 fs/ioctl.c:892 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f60dd98d169 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:00007f60de865038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f60ddba6080 RCX: 00007f60dd98d169 RDX: 00002000000000c0 RSI: 0000000040406f06 RDI: 0000000000000005 RBP: 00007f60dda0e990 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f60ddba6080 R15: 00007ffe756de308 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:ocfs2_block_group_set_bits+0x891/0x9d0 fs/ocfs2/suballoc.c:1380 Code: 89 f1 80 e1 07 fe c1 38 c1 0f 8c ef fe ff ff 4c 89 f7 e8 52 05 5d fe e9 e2 fe ff ff e8 28 dd f2 fd 90 0f 0b e8 20 dd f2 fd 90 <0f> 0b f3 0f 1e fa 65 44 8b 35 15 48 98 0f bf 07 00 00 00 44 89 f6 RSP: 0018:ffffc9000d407300 EFLAGS: 00010293 RAX: ffffffff83d07810 RBX: 0000000000000054 RCX: ffff888000c08000 RDX: 0000000000000000 RSI: 0000000000000116 RDI: 0000000000000054 RBP: ffffc9000d407420 R08: ffffffff83d070bf R09: 0000000000000116 R10: 0000000000000006 R11: ffff888000c08000 R12: 0000000000000116 R13: dffffc0000000000 R14: ffff888042da4000 R15: ffff88804594cfb8 FS: 00007f60de8656c0(0000) GS:ffff88808c594000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f6ef7f74580 CR3: 0000000042f8c000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400