audit: type=1800 audit(1605714059.665:40): pid=12364 uid=0 auid=0 ses=4 subj==unconfined op=collect_data cause=failed comm="syz-executor.2" name="bus" dev="sda1" ino=15997 res=0 EXT4-fs (loop4): mounted filesystem without journal. Opts: ,errors=continue vhci_hcd: invalid port number 16 vhci_hcd: default hub control req: 0000 v0000 i0010 l0 WARNING: CPU: 0 PID: 12354 at fs/ext4/xattr.c:1661 ext4_xattr_set_entry+0x2910/0x3690 fs/ext4/xattr.c:1661 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 12354 Comm: syz-executor.4 Not tainted 4.19.157-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2fe lib/dump_stack.c:118 panic+0x26a/0x50e kernel/panic.c:186 __warn.cold+0x20/0x61 kernel/panic.c:541 report_bug+0x262/0x2b0 lib/bug.c:186 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 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:1038 RIP: 0010:ext4_xattr_set_entry+0x2910/0x3690 fs/ext4/xattr.c:1661 Code: e8 95 24 72 ff 48 8b 7c 24 20 e8 fb eb ce ff 4c 8b b4 24 20 01 00 00 48 c7 44 24 18 00 00 00 00 e9 b2 db ff ff e8 70 24 72 ff <0f> 0b e9 fb e7 ff ff e8 64 24 72 ff 48 8b 7c 24 18 e8 5a 8e f0 ff RSP: 0018:ffff8880537d73a8 EFLAGS: 00010212 RAX: 0000000000040000 RBX: ffff8880a5f72da0 RCX: ffffc9000e367000 RDX: 00000000000006d6 RSI: ffffffff81f2aaf0 RDI: 0000000000000007 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000007 R11: 0000000051f410dd R12: 00000000000003dc R13: 0000000000000000 R14: 00000000ffffffc3 R15: 0000000000000001 ext4_xattr_block_set+0xf44/0x2eb0 fs/ext4/xattr.c:1963 ext4_xattr_set_handle+0x9c1/0xfa0 fs/ext4/xattr.c:2411 ext4_xattr_set+0x135/0x2a0 fs/ext4/xattr.c:2511 __vfs_setxattr+0x10e/0x170 fs/xattr.c:149 __vfs_setxattr_noperm+0x11a/0x420 fs/xattr.c:180 __vfs_setxattr_locked+0x176/0x250 fs/xattr.c:238 vfs_setxattr+0xe5/0x270 fs/xattr.c:255 setxattr+0x23d/0x330 fs/xattr.c:520 path_setxattr+0x170/0x190 fs/xattr.c:539 __do_sys_setxattr fs/xattr.c:554 [inline] __se_sys_setxattr fs/xattr.c:550 [inline] __x64_sys_setxattr+0xc0/0x160 fs/xattr.c:550 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45deb9 Code: 0d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 db b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fa60175bc78 EFLAGS: 00000246 ORIG_RAX: 00000000000000bc RAX: ffffffffffffffda RBX: 00000000000339c0 RCX: 000000000045deb9 RDX: 0000000020000080 RSI: 0000000020000040 RDI: 0000000020000000 RBP: 000000000118bf70 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118bf2c R13: 00007ffcad22be6f R14: 00007fa60175c9c0 R15: 000000000118bf2c Kernel Offset: disabled Rebooting in 86400 seconds..