NetSight
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medium5.5

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 exist…

Impact

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.

Affected products

VendorProductAffected versions
LinuxLinux Kernel
from 3.0 before 5.10.258
from 5.11 before 5.15.209
from 5.16 before 6.1.175
from 6.2 before 6.6.140
from 6.7 before 6.12.86
from 6.13 before 6.18.27

Weakness classification

CWE-476

References