PT-2026-34954 · Linux+2 · Linux Kernel+2
CVE-2026-31602
·
Published
2026-04-06
·
Updated
2026-08-25
CVSS v3.1
8.8
High
| Vector | AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
An issue exists in the ALSA ctxfi component where the
ct vm map() function always uses Page Table Entries (PTEs) in vm->ptp[0].area regardless of the CT PTP NUM value. On AMD64 systems, a single Page Table Page (PTP) covers 512 PTEs (2M). When aggregate memory allocations exceed this limit, the system attempts to access memory beyond the allocated space, resulting in a page fault.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
Buffer Overflow
Access of Memory Location After End of Buffer
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Related Identifiers
Affected Products
Linuxmint
Linux Kernel
Ubuntu