CVE-2026-43039: Linux kernel · net: ti: icssg-prueth: fix missing data copy and wrong recycle in ZC RX dispatch
Affects Linux kernelSource GCVE Database
Not known to be exploited · CVSS 9.8 Critical.
Data as of 12 Nov 2026, 00:49 UTC
Thin evidence
One scorer or none| CNA (Linux) | CVSS 3.1 | 9.8 |
|---|
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 1 May 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 11 Nov 2026.
What to do
AI-suggested
A fix for this vulnerability has been implemented in the Linux kernel. Users and administrators should apply the official Linux kernel updates that include this patch to resolve the issue. No additional mitigation steps are indicated beyond applying the fixed kernel version.
Description
CVE-2026-43039 is a critical vulnerability in the Linux kernel's ti icssg-prueth network driver. It involves a missing data copy in the zero-copy (ZC) RX dispatch path, causing uninitialized kernel heap memory to be leaked to userspace. Additionally, an incorrect recycle operation corrupts page pool state. The flaw has been fixed by copying packet data properly and removing the erroneous recycle call.