loop0: detected capacity change from 0 to 32768 ======================================================= WARNING: The mand mount option has been deprecated and and is ignored by this kernel. Remove the mand option from the mount to silence this warning. ======================================================= ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. (syz.0.0,5319,0):ocfs2_read_blocks_sync:112 ERROR: status = -12 (syz.0.0,5319,0):ocfs2_get_suballoc_slot_bit:2812 ERROR: read block 146028888064 failed -12 (syz.0.0,5319,0):ocfs2_get_suballoc_slot_bit:2844 ERROR: status = -12 (syz.0.0,5319,0):ocfs2_test_inode_bit:2926 ERROR: get alloc slot and bit failed -12 (syz.0.0,5319,0):ocfs2_test_inode_bit:2967 ERROR: status = -12 (syz.0.0,5319,0):ocfs2_get_dentry:78 ERROR: test inode bit failed -12 ------------[ cut here ]------------ kernel BUG at fs/ocfs2/suballoc.c:1443! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5319 Comm: syz.0.0 Not tainted 6.16.0-rc3-syzkaller-00346-gafa9a6f4f574 #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_find_victim_chain fs/ocfs2/suballoc.c:1443 [inline] RIP: 0010:ocfs2_claim_suballoc_bits+0x243c/0x2450 fs/ocfs2/suballoc.c:1996 Code: c2 fb ff ff e8 f5 00 1a fe 90 0f 0b e8 ed 00 1a fe 90 0f 0b e8 e5 00 1a fe 90 0f 0b e8 dd 00 1a fe 90 0f 0b e8 d5 00 1a fe 90 <0f> 0b e8 cd 00 1a fe 90 0f 0b 66 2e 0f 1f 84 00 00 00 00 00 90 90 RSP: 0018:ffffc9000f616720 EFLAGS: 00010287 RAX: ffffffff83a64dcb RBX: 0000000000000000 RCX: 0000000000100000 RDX: ffffc9000ddba000 RSI: 000000000000069e RDI: 000000000000069f RBP: ffffc9000f6169b0 R08: ffffc9000f616a40 R09: 0000000000000003 R10: 0000000000000005 R11: 0000000000000002 R12: ffff88804233d708 R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffff11008467ae1 FS: 00007fe248bf56c0(0000) GS:ffff88808d250000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fe24061f000 CR3: 0000000043e32000 CR4: 0000000000352ef0 Call Trace: __ocfs2_claim_clusters+0x303/0x8f0 fs/ocfs2/suballoc.c:2421 ocfs2_local_alloc_new_window fs/ocfs2/localalloc.c:1166 [inline] ocfs2_local_alloc_slide_window fs/ocfs2/localalloc.c:1295 [inline] ocfs2_reserve_local_alloc_bits+0x12be/0x24e0 fs/ocfs2/localalloc.c:669 ocfs2_reserve_clusters_with_limit+0x1be/0xba0 fs/ocfs2/suballoc.c:1168 ocfs2_reserve_clusters fs/ocfs2/suballoc.c:1229 [inline] ocfs2_lock_allocators+0x2fa/0x5c0 fs/ocfs2/suballoc.c:2772 ocfs2_write_begin_nolock+0x2279/0x4340 fs/ocfs2/aops.c:1718 ocfs2_write_begin+0x1bb/0x310 fs/ocfs2/aops.c:1882 generic_perform_write+0x2c7/0x910 mm/filemap.c:4112 ocfs2_file_write_iter+0x157a/0x1d10 fs/ocfs2/file.c:2469 new_sync_write fs/read_write.c:593 [inline] vfs_write+0x54b/0xa90 fs/read_write.c:686 ksys_write+0x145/0x250 fs/read_write.c:738 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fe24c78e929 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:00007fe248bf5038 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007fe24c9b5fa0 RCX: 00007fe24c78e929 RDX: 000000000000fea7 RSI: 0000200000000040 RDI: 0000000000000005 RBP: 00007fe24c810b39 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fe24c9b5fa0 R15: 00007ffe916d6b18 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:ocfs2_find_victim_chain fs/ocfs2/suballoc.c:1443 [inline] RIP: 0010:ocfs2_claim_suballoc_bits+0x243c/0x2450 fs/ocfs2/suballoc.c:1996 Code: c2 fb ff ff e8 f5 00 1a fe 90 0f 0b e8 ed 00 1a fe 90 0f 0b e8 e5 00 1a fe 90 0f 0b e8 dd 00 1a fe 90 0f 0b e8 d5 00 1a fe 90 <0f> 0b e8 cd 00 1a fe 90 0f 0b 66 2e 0f 1f 84 00 00 00 00 00 90 90 RSP: 0018:ffffc9000f616720 EFLAGS: 00010287 RAX: ffffffff83a64dcb RBX: 0000000000000000 RCX: 0000000000100000 RDX: ffffc9000ddba000 RSI: 000000000000069e RDI: 000000000000069f RBP: ffffc9000f6169b0 R08: ffffc9000f616a40 R09: 0000000000000003 R10: 0000000000000005 R11: 0000000000000002 R12: ffff88804233d708 R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffff11008467ae1 FS: 00007fe248bf56c0(0000) GS:ffff88808d250000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00002000000001ec CR3: 0000000043e32000 CR4: 0000000000352ef0