CVE-2020-25221

Fixed in a distro release EPSS <1%

get_gate_page in mm/gup.c in the Linux kernel 5.7.x and 5.8.x before 5.8.7 allows privilege escalation because of incorrect reference counting (caused by gate page mishandling) of the struct page that backs the vsyscall page. The result is a refcount underflow. This can be triggered by any 64-bit process that can use ptrace() or process_vm_readv(), aka CID-9fa2dd946743.

Published 2020-09-10 · CVE record · OSV

Products: linux_kernel, netapp cloud_backup, netapp solidfire,_enterprise_sds_&_hci_storage_node, netapp solidfire_&_hci_management_node

Distro releases