CVE-2025-71274: Linux kernel · Race Condition
Affects Linux kernelSource CVE Database V5
Not known to be exploited · CVSS 7.8 High · fixed in d66b8074c555e8abb0ae19eea1c9f3635498bdde : patch Linux kernel soon.
Data as of 26 Oct 2026, 14:18 UTC
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 0% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- CISA SSVC
- Exploitation
- No evidence of active exploitation and no public proof of concept
- Automatable
- Attackers cannot reliably automate steps 1–4 of the kill chain
- Technical impact
- Total control over the software or total information disclosure
CISA SSVC assessment, 2026-10-16.
- Patch
- Available – fixed in d66b8074c555e8abb0ae19eea1c9f3635498bdde, 47615557447185917afa432b7958f87583c417cb, 954557957177c3c13d7c655976665b1170da5e50 +5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 6 May 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Upgrade to a fixed release listed under Affected software.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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AI-suggested
A fix is available and has been applied in the Linux kernel. Users should update to the fixed kernel versions containing the patch commits identified by the provided hashes. No additional mitigation is required beyond applying the official patch.
Description
CVE-2025-71274 is a race condition vulnerability in the Linux kernel's rpmsg core driver_override_show() function. The flaw arises because driver_override_show reads a string without holding the device_lock, while the corresponding store function modifies and frees the string under the device_lock, leading to a use-after-free condition. The issue has been fixed by replacing the rpmsg_string_attr macro with explicit show and store functions that properly hold the device_lock during read operations and use the standard driver_set_override helper.
References
- git.kernel.org/stable/c/392c6b68334aa0e0ae9aba95c0a366bcb0d92f5d (opens in a new tab)
- git.kernel.org/stable/c/d66b8074c555e8abb0ae19eea1c9f3635498bdde (opens in a new tab)
- git.kernel.org/stable/c/47615557447185917afa432b7958f87583c417cb (opens in a new tab)
- git.kernel.org/stable/c/90c8353f471821d7ccd4fe573a2402e056192494 (opens in a new tab)
- git.kernel.org/stable/c/7654e6e3cd6bdee9602f6063b3c670bd556d7e61 (opens in a new tab)
- git.kernel.org/stable/c/2e4a70f3c30910427e5ea848b799066d67b963d5 (opens in a new tab)
- git.kernel.org/stable/c/954557957177c3c13d7c655976665b1170da5e50 (opens in a new tab)
- git.kernel.org/stable/c/42023d4b6d2661a40ee2dcf7e1a3528a35c638ca (opens in a new tab)