PT-2026-64368 · Linux+1 · Linux Kernel+1
CVE-2026-64253
·
Published
2026-07-24
·
Updated
2026-09-07
CVSS v3.1
5.5
Medium
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
An issue exists in the
copy process() function where the PF BLOCK TS flag is inherited from the parent process while the child process plug is reset to NULL. This breaks the system invariant that the presence of the PF BLOCK TS flag implies that current->plug is not NULL, potentially leading to unguarded dereferencing of current->plug.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
NULL Pointer Dereference
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Weakness Enumeration
Related Identifiers
Affected Products
Linux Kernel
Ubuntu