bpf build error (6)

Status: upstream: reported on 2026/09/16 19:57
Labels: prio:low
[Documentation on labels]
Reported-by: syzbot+7cf57e3153b0fdaf852a@syzkaller.appspotmail.com
First crash: 50d, last: 50d
▶ ▼ ✨ AI Jobs (3)
ID Workflow Result Correct Bug Created Started Finished Revision
f54d0169 repro-c 💥 bpf build error (6) 2026/09/29 07:19 2026/09/29 07:19 2026/09/29 08:37 7bf4ea23
c6eb7d55 repro-c 💥 bpf build error (6) 2026/09/27 17:12 2026/09/27 17:13 2026/09/27 18:31 a3c7249d
a5d8f246 assessment-security DenialOfService: ❌ Exploitable: ❌ FilesystemTrigger: ❌ NetworkTrigger: ❌ PeripheralTrigger: ❌ RemoteTrigger: ❌ Unprivileged: ❌ UserNamespace: ❌ VMGuestTrigger: ❌ VMHostTrigger: ❌ ❓ bpf build error (6) 2026/09/14 00:01 2026/09/14 00:01 2026/09/14 00:46 70a60e12
▶ ▼ Discussions (1)
Title Replies (including bot) Last reply
[syzbot] bpf build error (6) 0 (1) 2026/09/16 19:57
▶ ▼ Similar bugs (5)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream bpf build error (4) -1 2 1403d 1399d 0/29 auto-obsoleted due to no activity on 2023/04/27 22:39
upstream bpf build error (3) kernel -1 15 1874d 1886d 20/29 fixed on 2021/11/10 00:50
upstream bpf build error (5) -1 1 321d 317d 0/29 auto-obsoleted due to no activity on 2026/03/25 18:55
upstream bpf build error net -1 1 2718d 2718d 0/29 closed as invalid on 2019/05/24 09:24
upstream bpf build error (2) -1 1 2530d 2530d 0/29 closed as invalid on 2019/11/28 08:37

Sample crash report:
mv: cannot stat 'arch/x86/include/generated/asm/.tmp_cpufeaturemasks.h': No such file or directory

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/09/12 19:51 bpf 85136bf22404 70a60e12 .config console log report ci-upstream-bpf-kasan-gce bpf build error
* Struck through repros no longer work on HEAD.