CVE-2026-81002High· 7.0▾ TwilightA flaw was found in the Linux kernel's XDP (eXpress Data Path) component. Incorrect handling of zero-copy frame layout in the `xdp_convert_zc_to_xdp_frame()` function can allow an AF_XDP zero-copy packet, when redirected through `cpumap`, …
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 38.5 · likelihood 0.1 · exploitation 0
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Exploit-prediction probability, daily snapshots since Sep 12.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CSAF
0.2%
— → 5.9
none → medium
— → 5.9
none → medium
— → 9.8
none → critical
Last analysed / modified upstream
9.8 → 5.9
critical → medium
0.2% → 0.5%
9.8 → 7
critical → high
A flaw was found in the Linux kernel's XDP (eXpress Data Path) component. Incorrect handling of zero-copy frame layout in the xdp_convert_zc_to_xdp_frame() function can allow an AF_XDP zero-copy packet, when redirected through cpumap, to cause a memory corruption. This can lead to a slab-out-of-bounds error, resulting in a kernel panic and a Denial of Service (DoS) for the system.
kernel: xdp: fix zero-copy frame layout — rated Moderate by Red Hat. Released 2026-09-11, updated 2026-09-14.
Affected:
No fix planned:
Not affected:
Affected
Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
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