In the Linux kernel, the following vulnerability has been resolved:
net/sched: actapi: avoid dereferencing ERRPTR in tcfidrinfodestroy
syzbot reported a crash in tcactinhw() during netns teardown where tcfidrinfodestroy() passed an ERRPTR(-EBUSY) value as a tc_action pointer, leading to an invalid dereference.
Guard against ERRPTR entries when iterating the action IDR so teardown does not call tcactinhw() on an error pointer.
{
"cna_assigner": "Linux",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/22xxx/CVE-2026-22987.json"
}