BUG: Address fc00:: on device lo is missing its host route.

Status: upstream: reported on 2026/08/07 23:09
Reported-by: syzbot+89b401f5f7a944da74d6@syzkaller.appspotmail.com
First crash: 7d19h, last: 14h59m
▶ ▼ Similar bugs (4)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
android-6-1 BUG: Address fc00:: on device lo is missing its host route. -1 2 2d03h 10d 0/2 premoderation: reported on 2026/08/05 17:27
upstream BUG: Address fc00:: on device lo is missing its host route. prio:high -1 42 15h36m 8d05h 0/29 upstream: reported on 2026/08/07 12:56
android-6-12 BUG: Address fc00:: on device lo is missing its host route. -1 1 9d10h 9d10h 0/1 premoderation: reported on 2026/08/06 07:35
android-5-10 BUG: Address fc00:: on device lo is missing its host route. -1 syz, C 1 2h04m 2h03m 0/2 upstream: reported C repro on 2026/08/15 16:11

Sample crash report:
IPv6: BUG: Address fc00:: on device lo is missing its host route.

Crashes (4):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/08/15 03:15 linux-6.1.y e4f7d8be268e 746171ee .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan BUG: Address fc00:: on device lo is missing its host route.
2026/08/13 07:01 linux-6.1.y e4f7d8be268e 359b2492 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 BUG: Address fc00:: on device lo is missing its host route.
2026/08/07 23:12 linux-6.1.y e4f7d8be268e e4ef95d6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 BUG: Address fc00:: on device lo is missing its host route.
2026/08/07 23:08 linux-6.1.y e4f7d8be268e e4ef95d6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 BUG: Address fc00:: on device lo is missing its host route.
* Struck through repros no longer work on HEAD.