(syz.0.0,5346,0):__ocfs2_journal_access:727 ERROR: Error -30 getting 1 access to buffer! (syz.0.0,5346,0):ocfs2_write_end_nolock:1944 ERROR: status = -30 (syz.0.0,5346,0):ocfs2_commit_trans:404 ERROR: status = -5 ------------[ cut here ]------------ kernel BUG at fs/ocfs2/aops.c:2255! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5346 Comm: syz.0.0 Not tainted 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:ocfs2_dio_wr_get_block+0x175a/0x1770 fs/ocfs2/aops.c:2255 Code: 89 d7 e8 d9 89 84 fe 44 89 fa 4c 8b 7c 24 28 e9 d2 fa ff ff e8 57 df 1c fe 90 0f 0b e8 4f df 1c fe 90 0f 0b e8 47 df 1c fe 90 <0f> 0b e8 3f df 1c fe 90 0f 0b 66 66 66 2e 0f 1f 84 00 00 00 00 00 RSP: 0018:ffffc9000d6f72e0 EFLAGS: 00010287 RAX: ffffffff83a42819 RBX: 00000000ffffffe2 RCX: 0000000000100000 RDX: ffffc900216c3000 RSI: 0000000000086f47 RDI: 0000000000086f48 RBP: ffffc9000d6f74b0 R08: ffffffff8f824677 R09: 1ffffffff1f048ce R10: dffffc0000000000 R11: fffffbfff1f048cf R12: ffff888011c46c68 R13: dffffc0000000000 R14: ffff888011c46c38 R15: 0000000000004000 FS: 00007fe6134a16c0(0000) GS:ffff88808d414000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f0b7e42c000 CR3: 0000000035b0b000 CR4: 0000000000352ef0 Call Trace: get_more_blocks fs/direct-io.c:648 [inline] do_direct_IO fs/direct-io.c:936 [inline] __blockdev_direct_IO+0x16ff/0x3490 fs/direct-io.c:1243 ocfs2_direct_IO+0x25f/0x2d0 fs/ocfs2/aops.c:2441 generic_file_direct_write+0x1db/0x3e0 mm/filemap.c:4248 __generic_file_write_iter+0x11d/0x230 mm/filemap.c:4417 ocfs2_file_write_iter+0x1582/0x1cf0 fs/ocfs2/file.c:2475 new_sync_write fs/read_write.c:593 [inline] vfs_write+0x5c9/0xb30 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+0xec/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fe61258f7c9 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:00007fe6134a1038 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007fe6127e6090 RCX: 00007fe61258f7c9 RDX: 00000000ffffffd7 RSI: 0000200000000000 RDI: 0000000000000011 RBP: 00007fe612613f91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fe6127e6128 R14: 00007fe6127e6090 R15: 00007ffe60227bc8 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:ocfs2_dio_wr_get_block+0x175a/0x1770 fs/ocfs2/aops.c:2255 Code: 89 d7 e8 d9 89 84 fe 44 89 fa 4c 8b 7c 24 28 e9 d2 fa ff ff e8 57 df 1c fe 90 0f 0b e8 4f df 1c fe 90 0f 0b e8 47 df 1c fe 90 <0f> 0b e8 3f df 1c fe 90 0f 0b 66 66 66 2e 0f 1f 84 00 00 00 00 00 RSP: 0018:ffffc9000d6f72e0 EFLAGS: 00010287 RAX: ffffffff83a42819 RBX: 00000000ffffffe2 RCX: 0000000000100000 RDX: ffffc900216c3000 RSI: 0000000000086f47 RDI: 0000000000086f48 RBP: ffffc9000d6f74b0 R08: ffffffff8f824677 R09: 1ffffffff1f048ce R10: dffffc0000000000 R11: fffffbfff1f048cf R12: ffff888011c46c68 R13: dffffc0000000000 R14: ffff888011c46c38 R15: 0000000000004000 FS: 00007fe6134a16c0(0000) GS:ffff88808d414000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f0b7e42c000 CR3: 0000000035b0b000 CR4: 0000000000352ef0