CVE-2026-46098

Summary

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 Software

VendorProductVersion RangeStatus
LinuxLinux43e3692101086add8719c3b8b50b05c9ac5b14e1 < cffca7a18b8f9de7c3d3013a1f5740c412b2a501affected
LinuxLinux43e3692101086add8719c3b8b50b05c9ac5b14e1 < 7ef97d4675b05a103648bd9244d91dff7d8c08b0affected
LinuxLinux43e3692101086add8719c3b8b50b05c9ac5b14e1 < e16859f3f4426fa349bc5519d582a93d28f5a15daffected
LinuxLinux43e3692101086add8719c3b8b50b05c9ac5b14e1 < 914c6456fcfc21a3d553945dff62fd1621d6155daffected
LinuxLinux43e3692101086add8719c3b8b50b05c9ac5b14e1 < 3ac6db584d9d420267bb8413115707eeec76d9cfaffected
LinuxLinux43e3692101086add8719c3b8b50b05c9ac5b14e1 < 63d21a3aa0108b9dde4e99b0d3d5d679ac68c0f9affected
LinuxLinux43e3692101086add8719c3b8b50b05c9ac5b14e1 < a4b191ddc12c55ddb62feb096536f819f384d6f1affected
LinuxLinux43e3692101086add8719c3b8b50b05c9ac5b14e1 < f7cf8ece8cee3c1ee361991470cdb1eb65ab02e8affected
LinuxLinux3.0affected
LinuxLinux0 < 3.0unaffected
LinuxLinux5.10.258 <= 5.10.*unaffected
LinuxLinux5.15.209 <= 5.15.*unaffected
LinuxLinux6.1.175 <= 6.1.*unaffected
LinuxLinux6.6.140 <= 6.6.*unaffected
LinuxLinux6.12.86 <= 6.12.*unaffected
LinuxLinux6.18.27 <= 6.18.*unaffected
LinuxLinux7.0.4 <= 7.0.*unaffected
LinuxLinux7.1 <= *unaffected

Weaknesses

References