spi: s3c64xx: fix NULL-deref on driver unbind
Summary
| CVE | CVE-2026-46296 |
|---|---|
| State | PUBLISHED |
| Assigner | Linux |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-06-08 17:16:48 UTC |
| Updated | 2026-07-23 08:10:00 UTC |
| 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. |
Risk And Classification
Primary CVSS: v3.1 5.5 MEDIUM from [email protected]
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS: 0.001140000 probability, percentile 0.017760000 (date 2026-07-09)
Problem Types: CWE-476
CVSS v3.1 Breakdown
Attack Vector
LocalAttack Complexity
LowPrivileges Required
LowUser Interaction
NoneScope
UnchangedConfidentiality
NoneIntegrity
NoneAvailability
HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Operating System | Linux | Linux Kernel | All | All | All | All |
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Linux | Linux | affected f52b03c707444c5a3d1a0b9c5724f93ddc3c588e 29e219a18e21258bdb4ee12cecd0e9ec87d7e6a7 git | Not specified |
| CNA | Linux | Linux | affected f52b03c707444c5a3d1a0b9c5724f93ddc3c588e 1108b8722b9ff0cdd3e8aa18d98244fcd93b6760 git | Not specified |
| CNA | Linux | Linux | affected f52b03c707444c5a3d1a0b9c5724f93ddc3c588e 323a258f4b1916b5a3098618e036e033b2f2317f git | Not specified |
| CNA | Linux | Linux | affected f52b03c707444c5a3d1a0b9c5724f93ddc3c588e 1b66f16a571a10ba8889ac471755c8af9c5b9266 git | Not specified |
| CNA | Linux | Linux | affected f52b03c707444c5a3d1a0b9c5724f93ddc3c588e 22788b1a8611380b141e09a8896702e32d164238 git | Not specified |
| CNA | Linux | Linux | affected f52b03c707444c5a3d1a0b9c5724f93ddc3c588e 45daacbead8a009844bd5dba6cfa731332184d17 git | Not specified |
| CNA | Linux | Linux | affected 6.0 | Not specified |
| CNA | Linux | Linux | unaffected 6.0 semver | Not specified |
| CNA | Linux | Linux | unaffected 6.1.176 6.1.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.6.140 6.6.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.12.88 6.12.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.18.30 6.18.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.0.7 7.0.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.1 * original_commit_for_fix | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| git.kernel.org/stable/c/323a258f4b1916b5a3098618e036e033b2f2317f | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | Patch |
| git.kernel.org/stable/c/1108b8722b9ff0cdd3e8aa18d98244fcd93b6760 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | Patch |
| git.kernel.org/stable/c/29e219a18e21258bdb4ee12cecd0e9ec87d7e6a7 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | Patch |
| git.kernel.org/stable/c/45daacbead8a009844bd5dba6cfa731332184d17 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | Patch |
| git.kernel.org/stable/c/1b66f16a571a10ba8889ac471755c8af9c5b9266 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | Patch |
| git.kernel.org/stable/c/22788b1a8611380b141e09a8896702e32d164238 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | Patch |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.