net: caif: clear client service pointer on teardown
Summary
| CVE | CVE-2026-46098 |
|---|---|
| State | PUBLISHED |
| Assigner | Linux |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-05-27 14:17:31 UTC |
| Updated | 2026-06-01 17:17:23 UTC |
| Description | In the Linux kernel, the following vulnerability has been resolved: net: caif: clear client service pointer on teardown `caif_connect()` can tear down an existing client after remote shutdown by calling `caif_disconnect_client()` followed by `caif_free_client()`. `caif_free_client()` releases the service layer referenced by `adap_layer->dn`, but leaves that pointer stale. When the socket is later destroyed, `caif_sock_destructor()` calls `caif_free_client()` again and dereferences the freed service pointer. Clear the client/service links before releasing the service object so repeated teardown becomes harmless. |
Risk And Classification
EPSS: 0.000180000 probability, percentile 0.050770000 (date 2026-06-01)
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Linux | Linux | affected 43e3692101086add8719c3b8b50b05c9ac5b14e1 cffca7a18b8f9de7c3d3013a1f5740c412b2a501 git | Not specified |
| CNA | Linux | Linux | affected 43e3692101086add8719c3b8b50b05c9ac5b14e1 7ef97d4675b05a103648bd9244d91dff7d8c08b0 git | Not specified |
| CNA | Linux | Linux | affected 43e3692101086add8719c3b8b50b05c9ac5b14e1 e16859f3f4426fa349bc5519d582a93d28f5a15d git | Not specified |
| CNA | Linux | Linux | affected 43e3692101086add8719c3b8b50b05c9ac5b14e1 914c6456fcfc21a3d553945dff62fd1621d6155d git | Not specified |
| CNA | Linux | Linux | affected 43e3692101086add8719c3b8b50b05c9ac5b14e1 3ac6db584d9d420267bb8413115707eeec76d9cf git | Not specified |
| CNA | Linux | Linux | affected 43e3692101086add8719c3b8b50b05c9ac5b14e1 63d21a3aa0108b9dde4e99b0d3d5d679ac68c0f9 git | Not specified |
| CNA | Linux | Linux | affected 43e3692101086add8719c3b8b50b05c9ac5b14e1 a4b191ddc12c55ddb62feb096536f819f384d6f1 git | Not specified |
| CNA | Linux | Linux | affected 43e3692101086add8719c3b8b50b05c9ac5b14e1 f7cf8ece8cee3c1ee361991470cdb1eb65ab02e8 git | Not specified |
| CNA | Linux | Linux | affected 3.0 | Not specified |
| CNA | Linux | Linux | unaffected 3.0 semver | Not specified |
| CNA | Linux | Linux | unaffected 5.10.258 5.10.* semver | Not specified |
| CNA | Linux | Linux | unaffected 5.15.209 5.15.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.1.175 6.1.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.6.140 6.6.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.12.86 6.12.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.18.27 6.18.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.0.4 7.0.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.1-rc1 * original_commit_for_fix | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| git.kernel.org/stable/c/63d21a3aa0108b9dde4e99b0d3d5d679ac68c0f9 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/cffca7a18b8f9de7c3d3013a1f5740c412b2a501 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/f7cf8ece8cee3c1ee361991470cdb1eb65ab02e8 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/7ef97d4675b05a103648bd9244d91dff7d8c08b0 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/3ac6db584d9d420267bb8413115707eeec76d9cf | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/e16859f3f4426fa349bc5519d582a93d28f5a15d | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/a4b191ddc12c55ddb62feb096536f819f384d6f1 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/914c6456fcfc21a3d553945dff62fd1621d6155d | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| 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.