PT-2026-54795 · Linux · Linux Kernel

Published 2026-07-01 · Updated 2026-07-02 · CVE-2026-53327

Positive Technologies (AI Summary)

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

Description In RT enabled kernels, the fill pool() function calls rtlock lock(), which triggers an assertion if the pi blocked on variable is set. This occurs because a task can only block on one lock to prevent the corruption of the priority inheritance chain, a mechanism where a low-priority task holding a lock inherits the priority of a higher-priority task waiting for that same lock.

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

Exploit

Related Identifiers

CVE-2026-53327

ECHO-1474-DABC-1EE4

Affected Products

Linux Kernel

References · 18

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53327.json · Exploit
• https://security-tracker.debian.org/tracker/CVE-2026-53327 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-53327 · Security Note
• https://osv.dev/vulnerability/CVE-2026-53327 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-53327 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-53327 · Vendor Advisory
• https://osv.dev/vulnerability/BELL-CVE-2026-53327 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-53327 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-53327 · Vendor Advisory
• https://git.kernel.org/stable/c/8a680d54f1adf3e3aa815578684556716fda6f0c · Note
• https://git.kernel.org/linus/5f41161059fd0f1bbf18c90f3180e38cc45a14eb · Note
• https://git.kernel.org/stable/c/a3383df76f0d7a597066df018409eb9e5e698064 · Note
• https://git.kernel.org/stable/c/5f41161059fd0f1bbf18c90f3180e38cc45a14eb · Note
• https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git · Note
• https://git.kernel.org/stable/c/3a408cae608d9c075dd3a9e5cfc03b3cb0726863 · Note