CVE-2026-46285 Details
Description
In the Linux kernel, the following vulnerability has been resolved: mtd: docg3: fix use-after-free in docg3_release() In docg3_release(), the docg3 pointer is obtained from cascade->floors[0]->priv before the loop that calls doc_release_device() on each floor. doc_release_device() frees the docg3 struct via kfree(docg3) at line 1881. After the loop, docg3->cascade->bch dereferences the already-freed pointer. Fix this by accessing cascade->bch directly, which is equivalent since docg3->cascade points back to the same cascade struct, and is already available as a local variable. This also removes the now-unused docg3 local variable.
A use-after-free vulnerability has been identified in the Linux kernel's MTD DOCG3 driver. The issue arises in the 'docg3_release' function, where a pointer to a 'docg3' structure is obtained from 'cascade->floors[0]->priv' before a loop that calls 'doc_release_device()' on each floor. The 'doc_release_device()' function frees the 'docg3' structure, leading to a dereference of a freed pointer when accessing 'docg3->cascade->bch' after the loop. This vulnerability affects the Linux kernel stable tree.
The vulnerability has been fixed in the Linux kernel stable tree. Users can apply the latest updates from the Linux kernel stable repository to address this issue.
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
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/16f6588a3b7a2a20d10ad9b766be74c60ba347cc | kernel.org | Patch |
| https://git.kernel.org/stable/c/2bf706fe7831b319f23a85b9728f961cfed40c3e | kernel.org | Patch |
| https://git.kernel.org/stable/c/8408655ec8344511667b61d8257dc59c80ee3391 | kernel.org | Patch |
| https://git.kernel.org/stable/c/ca19808bc6fac7e29420d8508df569b346b3e339 | kernel.org | Patch |
| https://git.kernel.org/stable/c/d26f8c361f751c188b7ebaf8189aa0258968fd98 | kernel.org | Patch |
| https://git.kernel.org/stable/c/d49628d63d4e6bbc8a1621afb88e5fc901611bee | kernel.org | Patch |
| https://git.kernel.org/stable/c/d89044889ecd11b0c2f86663597246e9bdd25679 | kernel.org | Patch |
| https://git.kernel.org/stable/c/f5d2ed4ed47d3906e2495a3537a48b127f497a17 | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-416 | Use After Free | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 5.8, < 5.10.258 >= 5.11, < 5.15.209 >= 5.16, < 6.1.175 >= 6.2, < 6.6.140 >= 6.7, < 6.12.86 >= 6.13, < 6.18.27 >= 6.19, < 7.0.4 |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 23, 2026 | CVE Translated | [email protected] |
| Jul 8, 2026 | Initial Analysis | [email protected] |
| Jun 17, 2026 | CVE Modified | kernel.org |
| Jun 8, 2026 | New CVE Received | kernel.org |