CVE-2026-46098

net: caif: clear client service pointer on teardown

State: Published
Severity: Not scored
Published: May 27, 2026
Updated: Jun 14, 2026
Reserved: May 13, 2026

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	43e3692101086add8719c3b8b50b05c9ac5b14e1 to before cffca7a18b8f9de7c3d3013a1f5740c412b2a501Affected 43e3692101086add8719c3b8b50b05c9ac5b14e1 to before 7ef97d4675b05a103648bd9244d91dff7d8c08b0Affected 43e3692101086add8719c3b8b50b05c9ac5b14e1 to before e16859f3f4426fa349bc5519d582a93d28f5a15dAffected 43e3692101086add8719c3b8b50b05c9ac5b14e1 to before 914c6456fcfc21a3d553945dff62fd1621d6155dAffected 43e3692101086add8719c3b8b50b05c9ac5b14e1 to before 3ac6db584d9d420267bb8413115707eeec76d9cfAffected 43e3692101086add8719c3b8b50b05c9ac5b14e1 to before 63d21a3aa0108b9dde4e99b0d3d5d679ac68c0f9Affected 43e3692101086add8719c3b8b50b05c9ac5b14e1 to before a4b191ddc12c55ddb62feb096536f819f384d6f1Affected 43e3692101086add8719c3b8b50b05c9ac5b14e1 to before f7cf8ece8cee3c1ee361991470cdb1eb65ab02e8Affected
LinuxLinux	3.0Affected before 3.0Not affected 5.10.258 through 5.10.Not affected 5.15.209 through 5.15.Not affected 6.1.175 through 6.1.Not affected 6.6.140 through 6.6.Not affected 6.12.86 through 6.12.Not affected 6.18.27 through 6.18.Not affected 7.0.4 through 7.0.*Not affected 7.1 and laterNot affected

Product

Versions

LinuxLinux

43e3692101086add8719c3b8b50b05c9ac5b14e1 to before cffca7a18b8f9de7c3d3013a1f5740c412b2a501Affected
43e3692101086add8719c3b8b50b05c9ac5b14e1 to before 7ef97d4675b05a103648bd9244d91dff7d8c08b0Affected
43e3692101086add8719c3b8b50b05c9ac5b14e1 to before e16859f3f4426fa349bc5519d582a93d28f5a15dAffected
43e3692101086add8719c3b8b50b05c9ac5b14e1 to before 914c6456fcfc21a3d553945dff62fd1621d6155dAffected
43e3692101086add8719c3b8b50b05c9ac5b14e1 to before 3ac6db584d9d420267bb8413115707eeec76d9cfAffected
43e3692101086add8719c3b8b50b05c9ac5b14e1 to before 63d21a3aa0108b9dde4e99b0d3d5d679ac68c0f9Affected
43e3692101086add8719c3b8b50b05c9ac5b14e1 to before a4b191ddc12c55ddb62feb096536f819f384d6f1Affected
43e3692101086add8719c3b8b50b05c9ac5b14e1 to before f7cf8ece8cee3c1ee361991470cdb1eb65ab02e8Affected

LinuxLinux

3.0Affected
before 3.0Not affected
5.10.258 through 5.10.*Not affected
5.15.209 through 5.15.*Not affected
6.1.175 through 6.1.*Not affected
6.6.140 through 6.6.*Not affected
6.12.86 through 6.12.*Not affected
6.18.27 through 6.18.*Not affected
7.0.4 through 7.0.*Not affected
7.1 and laterNot affected

References

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