CVE-2025-71086 Details
Description
In the Linux kernel, the following vulnerability has been resolved: net: rose: fix invalid array index in rose_kill_by_device() rose_kill_by_device() collects sockets into a local array[] and then iterates over them to disconnect sockets bound to a device being brought down. The loop mistakenly indexes array[cnt] instead of array[i]. For cnt < ARRAY_SIZE(array), this reads an uninitialized entry; for cnt == ARRAY_SIZE(array), it is an out-of-bounds read. Either case can lead to an invalid socket pointer dereference and also leaks references taken via sock_hold(). Fix the index to use i.
An invalid array index vulnerability has been identified in the Linux kernel's handling of the Rose protocol. The issue arises in the 'rose_kill_by_device' function, which collects sockets into a local array and iterates over them to disconnect sockets bound to a device being shut down. The vulnerability is caused by the loop incorrectly indexing the array, leading to the potential reading of uninitialized data or out-of-bounds access. This mismanagement can result in an invalid socket pointer dereference, causing a crash, and also leaks socket references that were held, creating a risk of use-after-free vulnerabilities.
Users can upgrade to the patched version of the Linux kernel available in the official Linux kernel repositories. Instructions for upgrading the kernel can be found in the documentation for the specific Linux distribution being used.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://cert-portal.siemens.com/productcert/html/ssa-019113.html | siemens-SADP | |
| https://git.kernel.org/stable/c/1418c12cd3bba79dc56b57b61c99efe40f579981 | kernel.org | Patch |
| https://git.kernel.org/stable/c/6595beb40fb0ec47223d3f6058ee40354694c8e4 | kernel.org | Patch |
| https://git.kernel.org/stable/c/819fb41ae54960f66025802400c9d3935eef4042 | kernel.org | Patch |
| https://git.kernel.org/stable/c/92d900aac3a5721fb54f3328f1e089b44a861c38 | kernel.org | Patch |
| https://git.kernel.org/stable/c/9f6185a32496834d6980b168cffcccc2d6b17280 | kernel.org | Patch |
| https://git.kernel.org/stable/c/b409ba9e1e63ccf3ab4cc061e33c1f804183543e | kernel.org | Patch |
| https://git.kernel.org/stable/c/ed2639414d43ba037f798eaf619e878309310451 | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-129 | Improper Validation of Array Index | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 4.19.304, < 4.20 >= 5.4.266, < 5.5 >= 5.10.206, < 5.10.248 >= 5.15.146, < 5.15.198 >= 6.1.70, < 6.1.160 >= 6.6.9, < 6.6.120 >= 6.7.1, < 6.12.64 >= 6.13, < 6.18.4 6.7 - 6.19 rc1 6.19 rc2 6.19 rc3 6.19 rc4 6.19 rc5 6.19 rc6 6.19 rc7 6.19 rc8 |
CPE
Remediation
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Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 14, 2026 | CVE Modified | siemens-SADP |
| Jun 17, 2026 | CVE Modified | kernel.org |
| Mar 25, 2026 | Initial Analysis | [email protected] |
| Jan 19, 2026 | CVE Modified | kernel.org |
| Jan 13, 2026 | New CVE Received | kernel.org |