CVE-2026-46098
MEDIUMnet: caif: clear client service pointer on teardown
Title source: cnaDescription
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.
References (8)
Core 8
Core References
Scores
CVSS v3
5.5
EPSS
0.0012
EPSS Percentile
2.4%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Details
CWE
CWE-476
Status
published
Products (27)
linux/Kernel
3.0.0 - 5.10.258linux
linux/Kernel
5.11.0 - 5.15.209linux
linux/Kernel
5.16.0 - 6.1.175linux
linux/Kernel
6.13.0 - 6.18.27linux
linux/Kernel
6.19.0 - 7.0.4linux
linux/Kernel
6.2.0 - 6.6.140linux
linux/Kernel
6.7.0 - 6.12.86linux
Linux/Linux
< 3.0
Linux/Linux
3.0
Linux/Linux
43e3692101086add8719c3b8b50b05c9ac5b14e1 - 3ac6db584d9d420267bb8413115707eeec76d9cf
... and 17 more
Published
May 27, 2026
Tracked Since
May 27, 2026