pinctrl: canaan: k230: Fix NULL pointer dereference when parsing devicetree
Summary
| CVE | CVE-2026-46269 |
|---|---|
| State | PUBLISHED |
| Assigner | Linux |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-06-03 18:16:28 UTC |
| Updated | 2026-07-22 20:10:00 UTC |
| Description | In the Linux kernel, the following vulnerability has been resolved: pinctrl: canaan: k230: Fix NULL pointer dereference when parsing devicetree When probing the k230 pinctrl driver, the kernel triggers a NULL pointer dereference. The crash trace showed: [ 0.732084] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000068 [ 0.740737] ... [ 0.776296] epc : k230_pinctrl_probe+0x1be/0x4fc In k230_pinctrl_parse_functions(), we attempt to retrieve the device pointer via info->pctl_dev->dev, but info->pctl_dev is only initialized after k230_pinctrl_parse_dt() completes. At the time of DT parsing, info->pctl_dev is still NULL, leading to the invalid dereference of info->pctl_dev->dev. Use the already available device pointer from platform_device instead of accessing through uninitialized pctl_dev. |
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: 0.000130000 probability, percentile 0.021880000 (date 2026-06-11)
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 d94a32ac688f953dc9a9f12b5b4139ecad841bbb 3c7d637bfc3dfbd6471c68bd767f7eb8b5b09eba git | Not specified |
| CNA | Linux | Linux | affected d94a32ac688f953dc9a9f12b5b4139ecad841bbb 1d0d361f4dbc2bb2003594f84e4b101fc6b508c0 git | Not specified |
| CNA | Linux | Linux | affected d94a32ac688f953dc9a9f12b5b4139ecad841bbb d8c128fb6c2277d95f3f6a4ce28b82c8370031f6 git | Not specified |
| CNA | Linux | Linux | affected 02c1deb1bff2b6d242e29a51e56107495979a2b8 git | Not specified |
| CNA | Linux | Linux | affected 0ec03251d01494ef207089b5bd626becfd05fd86 git | Not specified |
| CNA | Linux | Linux | affected 6.15.10 6.16 semver | Not specified |
| CNA | Linux | Linux | affected 6.16.1 6.17 semver | Not specified |
| CNA | Linux | Linux | affected 6.17 | Not specified |
| CNA | Linux | Linux | unaffected 6.17 semver | Not specified |
| CNA | Linux | Linux | unaffected 6.18.14 6.18.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.19.4 6.19.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.0 * original_commit_for_fix | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| git.kernel.org/stable/c/1d0d361f4dbc2bb2003594f84e4b101fc6b508c0 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | Patch |
| git.kernel.org/stable/c/d8c128fb6c2277d95f3f6a4ce28b82c8370031f6 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | Patch |
| git.kernel.org/stable/c/3c7d637bfc3dfbd6471c68bd767f7eb8b5b09eba | 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.