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CVE-2026-74370

liveupdate: fix TOCTOU race in luo_session_retrieve()

N/A
Published: August 15, 2026 at 05:58 AM UTC
Updated: August 17, 2026 at 06:19 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
N/A
Exploit prediction
EPSS 0.2%

Description

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel· Linux
95%
6.19 ≤ v < 7.1.56.19 ≤ v < 7.2153094d3df5a2e834a19c59b255649a258ae466.19
Vendor states this is fixed in d3ae9e7fddb4036f50003d7fa1ef52801fdb961b (fixed)
Vendor states this is fixed in d944170607b872a1f93713c555ad3f0efde3a9b8 (fixed)
Vendor states this is fixed in 6.19 (unaffected)
Vendor states this is fixed in 7.1.5 (unaffected)
Vendor states this is fixed in 7.2 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (2)

Source: cverecord
https://git.kernel.org/stable/c/d944170607b872a1f93713c555ad3f0efde3a9b8
Source: cverecord
https://git.kernel.org/stable/c/d3ae9e7fddb4036f50003d7fa1ef52801fdb961b

Quick Info

StatusRECEIVED

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