In the Linux kernel, the following vulnerability has been resolved:
accel/amdxdna: Guard management mailbox channel cleanup against NULL pointer
The management mailbox channel cleanup helpers can be called from error handling paths when mgmt_chann has already been destroyed.
Add NULL checks to xdnamailboxfreechannel() and xdnamailboxstopchannel() so the cleanup path safely returns instead of dereferencing a NULL mailbox channel pointer.
{
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80657.json",
"cna_assigner": "Linux"
}