| Name | CVE-2026-98375 |
| Description | In the Linux kernel, the following vulnerability has been resolved: xen/netfront: drop RX packets with a short Ethernet header handle_incoming_queue() pulls pull_to bytes into the head before calling eth_type_trans(). pull_to is the length of the first RX slot, capped at RX_COPY_THRESHOLD, and that length comes from the backend. Nothing checks it against ETH_HLEN. If the first slot is shorter than ETH_HLEN and more slots follow, the head ends up shorter than an Ethernet header while skb->len is longer, and eth_type_trans() BUG()s in __skb_pull(). If the whole packet is shorter than ETH_HLEN, eth_type_trans() reads the header past the end of the data instead. Pull at least ETH_HLEN, and drop the packet if that fails, which also drops packets too short to hold an Ethernet header. This also checks the return value of the pull, which was ignored. |
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-4850-1, DSA-6568-1 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| linux (PTS) | bookworm | 6.1.176-1 | vulnerable |
| bookworm (security) | 6.1.190-1 | vulnerable | |
| trixie | 6.12.107-1 | vulnerable | |
| trixie (security) | 6.12.113-1 | fixed | |
| forky | 7.2.11-1 | fixed | |
| sid | 7.2.12-1 | fixed | |
| linux-6.12 (PTS) | bookworm (security) | 6.12.113-1~deb12u1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| linux | source | trixie | 6.12.113-1 | DSA-6568-1 | ||
| linux | source | (unstable) | 7.2.10-1 | |||
| linux-6.12 | source | bookworm | 6.12.113-1~deb12u1 | DLA-4850-1 |
https://xenbits.xen.org/xsa/advisory-522.html
https://git.kernel.org/linus/089e58805c452e52179482b1025a8e309a57f801 (7.3-rc7)