CVE-2026-90315

A flaw was found in the Linux kernel's PCI/sysfs legacy I/O and memory handlers. These handlers failed to enforce kernel lockdown, a security mechanism designed to prevent privileged users from performing certain low-level operations. A local root user could exploit this by writing to arbitrary I...

AZL-103040 CVE-2026-90315 affecting package kernel 6.6.157.1-1

In the Linux kernel, the following vulnerability has been resolved: PCI/sysfs: Add lockdown checks to legacy I/O and memory handlers Currently, the legacy I/O and memory sysfs handlers do not check securitylockeddownLOCKDOWNPCIACCESS, leaving the legacyio and legacymem files unprotected when the...

CVE-2026-90315

CVE-2026-90315 affects the Linux kernel's PCI/sysfs subsystem. The legacy I/O and memory handlers (pci_write_legacy_io() , pci_mmap_legacy_mem() , pci_mmap_legacy_io() ) fail to check security_locked_down(LOCKDOWN_PCI_ACCESS) , leaving the legacy_io and legacy_mem sysfs files unprotected during k...