CVE-2026-74370liveupdate: fix TOCTOU race in luo_session_retrieve()
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Aug 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 0153094d03df5a2e834a19c59b255649a258ae46 before d944170607b872a1f93713c555ad3f0efde3a9b8; from 0153094d03df5a2e834a19c59b255649a258ae46 before d3ae9e7fddb4036f50003d7fa1ef52801fdb961b | CNA record |
References
- https://git.kernel.org/stable/c/d944170607b872a1f93713c555ad3f0efde3a9b8
- https://git.kernel.org/stable/c/d3ae9e7fddb4036f50003d7fa1ef52801fdb961b
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.