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CVE-2026-74370

liveupdate: fix TOCTOU race in luo_session_retrieve() PUBLISHED

Description (CNA)

In the Linux kernel, the following vulnerability has been resolved: liveupdate: fix TOCTOU race in luo_session_retrieve() Extend the scope of the rwsem_read lock in luo_session_retrieve() to overlap with the acquisition of the session mutex. This prevents a concurrent thread from releasing and freeing the session between the lookup and the mutex lock.

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected 0153094d03df5a2e834a19c59b255649a258ae46 before d944170607b872a1f93713c555ad3f0efde3a9b8; affected 0153094d03df5a2e834a19c59b255649a258ae46 before d3ae9e7fddb4036f50003d7fa1ef52801fdb961b
Linux / Linuxaffected 6.19; unaffected 0 before 6.19; unaffected 7.1.5 through 7.1.*; unaffected 7.2 through *

CWE

No CWE identifiers supplied.

References