syzbot
kernel BUG in pskb_expand_head (6)
Status:
upstream: reported C repro on 2026/10/18 02:07
Subsystems:
tipc
Labels:
prio:high
[Documentation on labels]
Reported-by: syzbot+0017742620a9d06f06ef@syzkaller.appspotmail.com
Fix commit:
tipc: fix refcount panic in tipc_rcv() when receiving shared skb
Patched on: [ci-upstream-net-this-kasan-gce], missing on: [ci-qemu-gce-upstream-auto ci-qemu-native-arm64-kvm ci-qemu-upstream ci-qemu-upstream-386 ci-qemu2-arm32 ci-qemu2-arm64 ci-qemu2-arm64-compat ci-qemu2-arm64-mte ci-qemu2-riscv64 ci-snapshot-upstream-root ci-upstream-bpf-kasan-gce ci-upstream-bpf-next-kasan-gce ci-upstream-gce-arm64 ci-upstream-gce-leak ci-upstream-kasan-badwrites-root ci-upstream-kasan-gce ci-upstream-kasan-gce-386 ci-upstream-kasan-gce-root ci-upstream-kasan-gce-selinux-root ci-upstream-kasan-gce-smack-root ci-upstream-kmsan-gce-386-root ci-upstream-kmsan-gce-root ci-upstream-linux-next-kasan-gce-root ci-upstream-net-kasan-gce ci-upstream-rust-kasan-gce ci2-upstream-fs ci2-upstream-kcsan-gce ci2-upstream-usb]
First crash: 16d, last: 10d
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Last patch testing requests (1)
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Cause bisection attempts (1)
Sample crash report:
* Struck through repros no longer work on HEAD.