loop0: detected capacity change from 32768 to 64 (syz.0.0,5336,0):__ocfs2_journal_access:705 ERROR: Error -30 getting 1 access to buffer! (syz.0.0,5336,0):ocfs2_write_end_nolock:1966 ERROR: status = -30 (syz.0.0,5336,0):ocfs2_commit_trans:382 ERROR: status = -5 ------------[ cut here ]------------ kernel BUG at fs/ocfs2/aops.c:2278! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5336 Comm: syz.0.0 Not tainted 6.12.0-syzkaller-03657-g43fb83c17ba2 #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_dio_wr_get_block+0x18bd/0x18d0 fs/ocfs2/aops.c:2278 Code: e2 8e 4c 89 f2 e8 13 e7 6f 01 e9 3a f6 ff ff e8 d9 9a 43 08 e8 44 62 0d fe 90 0f 0b e8 3c 62 0d fe 90 0f 0b e8 34 62 0d fe 90 <0f> 0b e8 2c 62 0d fe 90 0f 0b 66 0f 1f 84 00 00 00 00 00 90 90 90 RSP: 0000:ffffc9000d1a7000 EFLAGS: 00010287 RAX: ffffffff8387969c RBX: 0000000000002000 RCX: 0000000000100000 RDX: ffffc9000e90b000 RSI: 0000000000009d13 RDI: 0000000000009d14 RBP: ffffc9000d1a71f0 R08: ffffffff8387913b R09: 1ffffffff285e930 R10: dffffc0000000000 R11: fffffbfff285e931 R12: 1ffff1100233510d R13: dffffc0000000000 R14: 00000000ffffffe2 R15: ffff888052523f10 FS: 00007f1776f7c6c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020001200 CR3: 0000000036a04000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: get_more_blocks fs/direct-io.c:648 [inline] do_direct_IO fs/direct-io.c:936 [inline] __blockdev_direct_IO+0x1c87/0x4890 fs/direct-io.c:1243 ocfs2_direct_IO+0x255/0x2c0 fs/ocfs2/aops.c:2464 generic_file_direct_write+0x1e6/0x400 mm/filemap.c:3979 __generic_file_write_iter+0x126/0x230 mm/filemap.c:4143 ocfs2_file_write_iter+0x17b1/0x1f50 fs/ocfs2/file.c:2467 do_iter_readv_writev+0x600/0x880 vfs_writev+0x376/0xba0 fs/read_write.c:1050 do_writev+0x1b6/0x360 fs/read_write.c:1096 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: 0033:0x7f177617e819 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:00007f1776f7c038 EFLAGS: 00000246 ORIG_RAX: 0000000000000014 RAX: ffffffffffffffda RBX: 00007f1776336080 RCX: 00007f177617e819 RDX: 0000000000000001 RSI: 0000000020000140 RDI: 0000000000000009 RBP: 00007f17761f175e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f1776336080 R15: 00007ffc565a6078 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:ocfs2_dio_wr_get_block+0x18bd/0x18d0 fs/ocfs2/aops.c:2278 Code: e2 8e 4c 89 f2 e8 13 e7 6f 01 e9 3a f6 ff ff e8 d9 9a 43 08 e8 44 62 0d fe 90 0f 0b e8 3c 62 0d fe 90 0f 0b e8 34 62 0d fe 90 <0f> 0b e8 2c 62 0d fe 90 0f 0b 66 0f 1f 84 00 00 00 00 00 90 90 90 RSP: 0000:ffffc9000d1a7000 EFLAGS: 00010287 RAX: ffffffff8387969c RBX: 0000000000002000 RCX: 0000000000100000 RDX: ffffc9000e90b000 RSI: 0000000000009d13 RDI: 0000000000009d14 RBP: ffffc9000d1a71f0 R08: ffffffff8387913b R09: 1ffffffff285e930 R10: dffffc0000000000 R11: fffffbfff285e931 R12: 1ffff1100233510d R13: dffffc0000000000 R14: 00000000ffffffe2 R15: ffff888052523f10 FS: 00007f1776f7c6c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020001200 CR3: 0000000036a04000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400