PT-2026-61500 · Linux · Linux Kernel

CVE-2026-64183 · Published 2026-07-19 · Updated 2026-07-19

Positive Technologies (AI Summary)

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description An issue exists where ACPI PRM calls are delegated to a workqueue running in a kernel thread to detect and mitigate faulting memory accesses by firmware. Because these PRM accesses can occur before the efisubsys init() function executes, the workqueue may not yet be allocated, resulting in NULL pointer dereferences.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Related Identifiers

CVE-2026-64183

Affected Products

Linux Kernel

References · 8

• https://nvd.nist.gov/vuln/detail/CVE-2026-64183 · Security Note
• https://git.kernel.org/stable/c/6996e954ae830f5b793ba6cf449885ca519dbdd2 · Note
• https://git.kernel.org/stable/c/e871549f7894ad4114b3dd53f241aa25a268ba8b · Note
• https://git.kernel.org/stable/c/13c6da02e767152c9ac4330962247a5e47011035 · Note
• https://git.kernel.org/stable/c/c32a1fbe0f9a48453a552bb315cc4f1e7a74084e · Note
• https://git.kernel.org/stable/c/29cd94e678fcb3c4fd0f359deeac6d61334323fc · Note
• https://twitter.com/infoflowcloud/status/2078953234169753808 · Twitter Post
• https://twitter.com/CVEnew/status/2078951946057097468 · Twitter Post