CVE-2026-46098
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…
Does this matter?
Lower severity and a low EPSS score (0.12%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.12% probability · 2th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-476
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/3ac6db584d9d420267bb8413115707eeec76d9cfPatch
- https://git.kernel.org/stable/c/63d21a3aa0108b9dde4e99b0d3d5d679ac68c0f9Patch
- https://git.kernel.org/stable/c/7ef97d4675b05a103648bd9244d91dff7d8c08b0Patch
- https://git.kernel.org/stable/c/914c6456fcfc21a3d553945dff62fd1621d6155dPatch
- https://git.kernel.org/stable/c/a4b191ddc12c55ddb62feb096536f819f384d6f1Patch
- https://git.kernel.org/stable/c/cffca7a18b8f9de7c3d3013a1f5740c412b2a501Patch
- https://git.kernel.org/stable/c/e16859f3f4426fa349bc5519d582a93d28f5a15dPatch
- https://git.kernel.org/stable/c/f7cf8ece8cee3c1ee361991470cdb1eb65ab02e8Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.