CVE-2026-46098: net: caif: clear client service pointer on teardown
In the Linux kernel, the following vulnerability has been resolved:
net: caif: clear client service pointer on teardown
caifconnect() can tear down an existing client after remote shutdown by calling caifdisconnectclient() followed by caiffreeclient(). caiffreeclient() releases the service layer referenced by adaplayer->dn, but leaves that pointer stale.
When the socket is later destroyed, caifsockdestructor() calls caiffreeclient() again and dereferences the freed service pointer.
Clear the client/service links before releasing the service object so repeated teardown becomes harmless.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 6.6.141.1-1
Event History
Frequently Asked Questions
What is the severity of CVE-2026-46098?
CVE-2026-46098 has a risk level of 44, indicating a significant security concern.
How do I fix CVE-2026-46098?
To fix CVE-2026-46098, update your Linux kernel to the latest version where this vulnerability has been resolved.
Who is affected by CVE-2026-46098?
CVE-2026-46098 affects users running vulnerable versions of the Linux kernel that utilize the CAIF netlink transport.
What are the potential impacts of CVE-2026-46098?
The potential impacts of CVE-2026-46098 include unexpected client disconnections and possible denial of service.
When was CVE-2026-46098 published?
CVE-2026-46098 was published on May 27, 2026.