EXT4-fs error (device loop1): ext4_orphan_get:1256: comm syz-executor.1: bad orphan inode 15 EXT4-fs error (device loop2) in ext4_do_update_inode:5397: error 27 ------------[ cut here ]------------ EXT4-fs error (device loop2) in ext4_do_update_inode:5397: error 27 WARNING: CPU: 1 PID: 21407 at fs/nilfs2/dat.c:151 nilfs_dat_prepare_end.cold+0x11/0x18 fs/nilfs2/dat.c:151 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 21407 Comm: syz-executor.0 Not tainted 4.19.211-syzkaller #0 EXT4-fs error (device loop2): ext4_xattr_delete_inode:2952: inode #15: comm syz-executor.2: mark inode dirty (error -27) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/16/2023 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2ef lib/dump_stack.c:118 panic+0x26a/0x50e kernel/panic.c:186 EXT4-fs warning (device loop2): ext4_evict_inode:318: xattr delete (err -27) __warn.cold+0x20/0x5a kernel/panic.c:541 report_bug+0x262/0x2b0 lib/bug.c:183 fixup_bug arch/x86/kernel/traps.c:178 [inline] fixup_bug arch/x86/kernel/traps.c:173 [inline] do_error_trap+0x1d7/0x310 arch/x86/kernel/traps.c:296 EXT4-fs (loop2): mounted filesystem without journal. Opts: acl,grpquota,,errors=continue ext4_test_bit(bit=14, block=18) = 1 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:1038 RIP: 0010:nilfs_dat_prepare_end.cold+0x11/0x18 fs/nilfs2/dat.c:151 Code: c1 e8 b0 4f 69 f9 48 c7 c7 80 df 9e 88 e8 0f 81 fa ff 0f 0b e9 20 61 b6 fa e8 98 4f 69 f9 48 c7 c7 80 df 9e 88 e8 f7 80 fa ff <0f> 0b e9 1a 66 b6 fa e8 80 4f 69 f9 48 c7 c7 80 df 9e 88 e8 df 80 is_bad_inode(inode)=0 RSP: 0018:ffff8880408a7530 EFLAGS: 00010282 RAX: 0000000000000024 RBX: ffff8880408a7598 RCX: 0000000000000000 RDX: 00000000000207bd RSI: ffffffff814dff01 RDI: ffffed1008114e98 RBP: ffff888045122980 R08: 0000000000000024 R09: 0000000000000000 R10: 0000000000000005 R11: 0000000000000000 R12: 00000000fffffffe R13: ffff8880408a75b0 R14: ffff888045122980 R15: ffff8880451ee170 nilfs_bmap_prepare_end_ptr fs/nilfs2/bmap.h:211 [inline] nilfs_direct_delete+0x20c/0x2d0 fs/nilfs2/direct.c:155 NEXT_ORPHAN(inode)=4294967295 nilfs_bmap_do_delete+0x225/0x2e0 fs/nilfs2/bmap.c:176 max_ino=32 nilfs_bmap_do_truncate fs/nilfs2/bmap.c:264 [inline] nilfs_bmap_truncate+0x109/0x300 fs/nilfs2/bmap.c:297 i_nlink=0 nilfs_truncate_bmap+0x13d/0x350 fs/nilfs2/inode.c:710 EXT4-fs warning (device loop1): ext4_update_dynamic_rev:860: updating to rev 1 because of new feature flag, running e2fsck is recommended nilfs_truncate+0x26f/0x4e0 fs/nilfs2/inode.c:741 EXT4-fs error (device loop1) in ext4_do_update_inode:5397: error 27 nilfs_setattr+0x246/0x2a0 fs/nilfs2/inode.c:835 EXT4-fs error (device loop1) in ext4_do_update_inode:5397: error 27 EXT4-fs error (device loop1): ext4_xattr_delete_inode:2952: inode #15: comm syz-executor.1: mark inode dirty (error -27) notify_change+0x70b/0xfc0 fs/attr.c:334 EXT4-fs warning (device loop1): ext4_evict_inode:318: xattr delete (err -27) do_truncate+0x134/0x1f0 fs/open.c:63 handle_truncate fs/namei.c:3009 [inline] do_last fs/namei.c:3427 [inline] path_openat+0x2308/0x2df0 fs/namei.c:3537 EXT4-fs (loop1): mounted filesystem without journal. Opts: acl,grpquota,,errors=continue do_filp_open+0x18c/0x3f0 fs/namei.c:3567 do_sys_open+0x3b3/0x520 fs/open.c:1085 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f11b0b1a0f9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f11af08c168 EFLAGS: 00000246 ORIG_RAX: 0000000000000055 RAX: ffffffffffffffda RBX: 00007f11b0c39f80 RCX: 00007f11b0b1a0f9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000000 RBP: 00007f11b0b75ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc576ee20f R14: 00007f11af08c300 R15: 0000000000022000 Kernel Offset: disabled Rebooting in 86400 seconds..