CVE-2025-71086: Linux kernel · net: rose: fix invalid array index in rose_kill_by_device()
Affects Linux kernelSource GCVE Database
Not known to be exploited · CVSS 7.8 High · fixed in 5.15.0-1103.110~20.04.1 : patch Linux kernel soon.
Data as of 26 Oct 2026, 12:55 UTC
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 3% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 5.15.0-1103.110~20.04.1, 5.15.0-1110.119~20.04.1, 5.15.0-1103.112~20.04.1 +70
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 13 Jan 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 |
|---|---|---|
Ubuntu 25.10linuxpkg:deb/ubuntu/linux@6.17.0-22.22?arch=source&distro=questingOther threats | Affected
| Fixed in
|
Ubuntu 25.10linux-awspkg:deb/ubuntu/linux-aws@6.17.0-1012.12?arch=source&distro=questingOther threats | Affected
| Fixed in
|
Ubuntu 25.10linux-azurepkg:deb/ubuntu/linux-azure@6.17.0-1013.13?arch=source&distro=questingOther threats | Affected
| Fixed in
|
Ubuntu 25.10linux-azure-fdepkg:deb/ubuntu/linux-azure-fde@6.17.0-1017.17?arch=source&distro=questingOther threats | Affected
| Fixed in– |
Ubuntu 25.10linux-gcppkg:deb/ubuntu/linux-gcp@6.17.0-1012.12?arch=source&distro=questingOther threats | Affected
| Fixed in
|
Ubuntu 25.10linux-oraclepkg:deb/ubuntu/linux-oracle@6.17.0-1011.11?arch=source&distro=questingOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
An official patch is available and should be applied to affected Linux kernel versions. The vendor advisory from Ubuntu (USN-8096-1) confirms that this and other kernel vulnerabilities have been fixed in updated kernel packages. Users should update to the fixed kernel versions as specified by their distribution. No additional mitigations are indicated beyond applying the official fix.
Description
A vulnerability in the Linux kernel's rose network subsystem was fixed that involved an invalid array index in the rose_kill_by_device() function. The function incorrectly indexed a local socket array, leading to potential out-of-bounds reads and use of uninitialized memory. This flaw could cause invalid socket pointer dereferences and reference leaks. The issue affects multiple Linux kernel versions prior to specific 5.15.x updates and has been addressed by an official patch.
References
- ubuntu.com/security/CVE-2025-71086 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2025-71086 (opens in a new tab)
- git.kernel.org/linus/6595beb40fb0ec47223d3f6058ee40354694c8e4 (opens in a new tab)
- git.kernel.org/stable/c/1418c12cd3bba79dc56b57b61c99efe40f579981 (opens in a new tab)
- git.kernel.org/stable/c/6595beb40fb0ec47223d3f6058ee40354694c8e4 (opens in a new tab)
- git.kernel.org/stable/c/92d900aac3a5721fb54f3328f1e089b44a861c38 (opens in a new tab)
- git.kernel.org/stable/c/9f6185a32496834d6980b168cffcccc2d6b17280 (opens in a new tab)
- git.kernel.org/stable/c/b409ba9e1e63ccf3ab4cc061e33c1f804183543e (opens in a new tab)
- ubuntu.com/security/notices/USN-8096-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8096-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-8096-3 (opens in a new tab)
- ubuntu.com/security/notices/USN-8096-4 (opens in a new tab)
- ubuntu.com/security/notices/USN-8116-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8096-5 (opens in a new tab)
- ubuntu.com/security/notices/USN-8141-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8163-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8163-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-8177-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8179-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8177-2 (opens in a new tab)