loop0: detected capacity change from 0 to 32768 (syz.0.0,5331,0):ocfs2_block_check_validate:402 ERROR: CRC32 failed: stored: 0xb3775c19, computed 0x2dd1c265. Applying ECC. (syz.0.0,5331,0):ocfs2_block_check_validate:402 ERROR: CRC32 failed: stored: 0xb3775c19, computed 0x2dd1c265. Applying ECC. JBD2: Ignoring recovery information on journal ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. (syz.0.0,5331,0):__ocfs2_journal_access:724 ERROR: Error -30 getting 1 access to buffer! (syz.0.0,5331,0):ocfs2_write_end_nolock:1943 ERROR: status = -30 (syz.0.0,5331,0):ocfs2_commit_trans:401 ERROR: status = -5 ------------[ cut here ]------------ kernel BUG at fs/ocfs2/aops.c:2254! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5331 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 04/01/2014 RIP: 0010:ocfs2_dio_wr_get_block+0x17ee/0x1800 fs/ocfs2/aops.c:2254 Code: 89 d7 e8 f5 91 75 fe 44 89 fa 4c 8b 7c 24 38 e9 a3 fa ff ff e8 23 c7 09 fe 90 0f 0b e8 1b c7 09 fe 90 0f 0b e8 13 c7 09 fe 90 <0f> 0b e8 0b c7 09 fe 90 0f 0b 0f 1f 84 00 00 00 00 00 90 90 90 90 RSP: 0018:ffffc9000dc3ee40 EFLAGS: 00010246 RAX: ffffffff83bbe86d RBX: 00000000ffffffe2 RCX: 0000000000100000 RDX: ffffc9000ec6a000 RSI: 00000000000fffff RDI: 0000000000100000 RBP: ffffc9000dc3f010 R08: ffffffff9011beb7 R09: 1ffffffff20237d6 R10: dffffc0000000000 R11: fffffbfff20237d7 R12: ffff888047dfc1a8 R13: dffffc0000000000 R14: 1ffff92001b87ddc R15: 0000000000001000 FS: 00007fa9571716c0(0000) GS:ffff88808ca55000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fec3ded1140 CR3: 000000001241d000 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+0x15d7/0x32f0 fs/direct-io.c:1243 ocfs2_direct_IO+0x251/0x2c0 fs/ocfs2/aops.c:2440 generic_file_direct_write+0x1db/0x3e0 mm/filemap.c:4253 __generic_file_write_iter+0x11d/0x230 mm/filemap.c:4422 ocfs2_file_write_iter+0x1663/0x1ed0 fs/ocfs2/file.c:2476 iter_file_splice_write+0x9a1/0x10f0 fs/splice.c:736 do_splice_from fs/splice.c:936 [inline] direct_splice_actor+0x101/0x160 fs/splice.c:1159 splice_direct_to_actor+0x53a/0xc70 fs/splice.c:1103 do_splice_direct_actor fs/splice.c:1202 [inline] do_splice_direct+0x195/0x290 fs/splice.c:1228 do_sendfile+0x535/0x7d0 fs/read_write.c:1372 __do_sys_sendfile64 fs/read_write.c:1433 [inline] __se_sys_sendfile64+0x144/0x1a0 fs/read_write.c:1419 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fa95639c799 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fa957170fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007fa956615fa0 RCX: 00007fa95639c799 RDX: 0000000000000000 RSI: 0000000000000007 RDI: 0000000000000008 RBP: 00007fa956432c99 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000080000002 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fa956616038 R14: 00007fa956615fa0 R15: 00007ffde04e3798 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:ocfs2_dio_wr_get_block+0x17ee/0x1800 fs/ocfs2/aops.c:2254 Code: 89 d7 e8 f5 91 75 fe 44 89 fa 4c 8b 7c 24 38 e9 a3 fa ff ff e8 23 c7 09 fe 90 0f 0b e8 1b c7 09 fe 90 0f 0b e8 13 c7 09 fe 90 <0f> 0b e8 0b c7 09 fe 90 0f 0b 0f 1f 84 00 00 00 00 00 90 90 90 90 RSP: 0018:ffffc9000dc3ee40 EFLAGS: 00010246 RAX: ffffffff83bbe86d RBX: 00000000ffffffe2 RCX: 0000000000100000 RDX: ffffc9000ec6a000 RSI: 00000000000fffff RDI: 0000000000100000 RBP: ffffc9000dc3f010 R08: ffffffff9011beb7 R09: 1ffffffff20237d6 R10: dffffc0000000000 R11: fffffbfff20237d7 R12: ffff888047dfc1a8 R13: dffffc0000000000 R14: 1ffff92001b87ddc R15: 0000000000001000 FS: 00007fa9571716c0(0000) GS:ffff88808ca55000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fec3ded1140 CR3: 000000001241d000 CR4: 0000000000352ef0