Improper Check for Unusual or Exceptional Conditions in Linux kernel - CVE-2026-31517
Published: April 24, 2026
Vulnerability identifier: #VU127627
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-31517
CWE-ID: CWE-754
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to improper handling of non-linear skb state in iptfs_reassem_cont() when reassembling fragmented IP-TFS packets. A remote attacker can send specially crafted fragmented packets to cause a denial of service.
Affected software
Linux kernel
How to mitigate CVE-2026-31517
Install security update from vendor's repository.
Linux kernel - update to 7.0 rc3