CVE-2026-46296 Details
Description
In the Linux kernel, the following vulnerability has been resolved: spi: s3c64xx: fix NULL-deref on driver unbind A change moving DMA channel allocation from probe() back to s3c64xx_spi_prepare_transfer() failed to remove the corresponding deallocation from remove(). Drop the bogus DMA channel release from remove() to avoid triggering a NULL-pointer dereference on driver unbind. This issue was flagged by Sashiko when reviewing a controller deregistration fix.
A NULL pointer dereference vulnerability has been identified in the Linux kernel's SPI S3C64XX driver. This issue arises when the DMA channel allocation is moved back to the transfer preparation function without properly removing the corresponding deallocation from the driver removal process. As a result, the erroneous DMA channel release can trigger a NULL-pointer dereference during the driver unbinding phase. This vulnerability affects several versions of the Linux kernel.
The vulnerability has been addressed in the Linux kernel. Users should upgrade to the latest version where this issue has been fixed.
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/1108b8722b9ff0cdd3e8aa18d98244fcd93b6760 | kernel.org | Patch |
| https://git.kernel.org/stable/c/1b66f16a571a10ba8889ac471755c8af9c5b9266 | kernel.org | Patch |
| https://git.kernel.org/stable/c/22788b1a8611380b141e09a8896702e32d164238 | kernel.org | Patch |
| https://git.kernel.org/stable/c/29e219a18e21258bdb4ee12cecd0e9ec87d7e6a7 | kernel.org | Patch |
| https://git.kernel.org/stable/c/323a258f4b1916b5a3098618e036e033b2f2317f | kernel.org | Patch |
| https://git.kernel.org/stable/c/45daacbead8a009844bd5dba6cfa731332184d17 | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-476 | NULL Pointer Dereference | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 6.0, < 6.1.176 >= 6.2, < 6.6.140 >= 6.7, < 6.12.88 >= 6.13, < 6.18.30 >= 6.19, < 7.0.7 |
CPE
Remediation
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Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 23, 2026 | CVE Translated | [email protected] |
| Jul 8, 2026 | Initial Analysis | [email protected] |
| Jun 19, 2026 | CVE Modified | kernel.org |
| Jun 17, 2026 | CVE Modified | kernel.org |
| Jun 8, 2026 | New CVE Received | kernel.org |