OCFS2: ERROR (device loop0): int ocfs2_validate_inode_block(struct super_block *, struct buffer_head *): Invalid dinode #17058: signature = On-disk corruption discovered. Please run fsck.ocfs2 once the filesystem is unmounted. OCFS2: File system is now read-only. (syz.0.0,5331,0):ocfs2_assign_bh:2417 ERROR: status = -30 (syz.0.0,5331,0):ocfs2_inode_lock_full_nested:2512 ERROR: status = -30 (syz.0.0,5331,0):ocfs2_reflink_inodes_lock:4748 ERROR: status = -30 ------------[ cut here ]------------ kernel BUG at ./include/linux/highmem.h:577! 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:memcpy_from_folio include/linux/highmem.h:577 [inline] RIP: 0010:ocfs2_write_end_inline fs/ocfs2/aops.c:1915 [inline] RIP: 0010:ocfs2_write_end_nolock+0x1760/0x18f0 fs/ocfs2/aops.c:1949 Code: 90 0f 0b e8 02 d5 09 fe 90 0f 0b e8 fa d4 09 fe 48 8b 7c 24 10 48 c7 c6 e0 05 12 8c e8 b9 2b 6c fd 90 0f 0b e8 e1 d4 09 fe 90 <0f> 0b 65 44 8b 25 9a 50 61 0f bf 07 00 00 00 44 89 e6 e8 09 d9 09 RSP: 0018:ffffc9000e33f1e0 EFLAGS: 00010293 RAX: ffffffff83bbef8f RBX: 0000000000000000 RCX: ffff888000e30000 RDX: 0000000000000000 RSI: 0000000000001000 RDI: 0000000000002000 RBP: ffffc9000e33f350 R08: ffffea0001112fc7 R09: 1ffffd40002225f8 R10: dffffc0000000000 R11: fffff940002225f9 R12: 0000000000001000 R13: 0000000000002000 R14: 0000000000001000 R15: 0000000000000000 FS: 00007f17817d46c0(0000) GS:ffff88808ca4c000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f06b1a1f000 CR3: 0000000012ef7000 CR4: 0000000000352ef0 Call Trace: ocfs2_write_end+0x58/0x90 fs/ocfs2/aops.c:2059 generic_perform_write+0x620/0x8f0 mm/filemap.c:4340 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 vfs_copy_file_range+0xb02/0x1370 fs/read_write.c:1634 __do_sys_copy_file_range fs/read_write.c:1683 [inline] __se_sys_copy_file_range+0x2fb/0x480 fs/read_write.c:1650 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: 0033:0x7f178539c819 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:00007f17817d3fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000146 RAX: ffffffffffffffda RBX: 00007f1785616180 RCX: 00007f178539c819 RDX: 0000000000000006 RSI: 00002000000001c0 RDI: 0000000000000007 RBP: 00007f1785432c91 R08: ffffffffa003e45b R09: 0700000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f1785616218 R14: 00007f1785616180 R15: 00007ffcad821538 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:memcpy_from_folio include/linux/highmem.h:577 [inline] RIP: 0010:ocfs2_write_end_inline fs/ocfs2/aops.c:1915 [inline] RIP: 0010:ocfs2_write_end_nolock+0x1760/0x18f0 fs/ocfs2/aops.c:1949 Code: 90 0f 0b e8 02 d5 09 fe 90 0f 0b e8 fa d4 09 fe 48 8b 7c 24 10 48 c7 c6 e0 05 12 8c e8 b9 2b 6c fd 90 0f 0b e8 e1 d4 09 fe 90 <0f> 0b 65 44 8b 25 9a 50 61 0f bf 07 00 00 00 44 89 e6 e8 09 d9 09 RSP: 0018:ffffc9000e33f1e0 EFLAGS: 00010293 RAX: ffffffff83bbef8f RBX: 0000000000000000 RCX: ffff888000e30000 RDX: 0000000000000000 RSI: 0000000000001000 RDI: 0000000000002000 RBP: ffffc9000e33f350 R08: ffffea0001112fc7 R09: 1ffffd40002225f8 R10: dffffc0000000000 R11: fffff940002225f9 R12: 0000000000001000 R13: 0000000000002000 R14: 0000000000001000 R15: 0000000000000000 FS: 00007f17817d46c0(0000) GS:ffff88808ca4c000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f17817f59a0 CR3: 0000000012ef7000 CR4: 0000000000352ef0