kernel: dmaengine: idxd: Ensure safe user copy of completion record

In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: Ensure safe user copy of completion record If CONFIGHARDENEDUSERCOPY is enabled, copying completion record from event log cache to user triggers a kernel bug. 1987.159822 usercopy: Kernel memory exposure attempt...

DEBIAN-CVE-2024-26746

In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: Ensure safe user copy of completion record If CONFIGHARDENEDUSERCOPY is enabled, copying completion record from event log cache to user triggers a kernel bug. 1987.159822 usercopy: Kernel memory exposure attempt...

UBUNTU-CVE-2024-26746

In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: Ensure safe user copy of completion record If CONFIGHARDENEDUSERCOPY is enabled, copying completion record from event log cache to user triggers a kernel bug. 1987.159822 usercopy: Kernel memory exposure attempt...

CVE-2024-26746

The CVE-2024-26746 issue is a Linux kernel vulnerability where event log cache allocation used kmem_cache_create is unsafe for user copies, triggering a kernel bug when HARDENED_USERCOPY is enabled. The connected PT/ Nessus entries confirm the problem is tied to the idxd event log completion reco...

CVE-2024-26746

In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: Ensure safe user copy of completion record If CONFIGHARDENEDUSERCOPY is enabled, copying completion record from event log cache to user triggers a kernel bug. 1987.159822 usercopy: Kernel memory exposure attempt...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in Linux kernel that stems from an event log cache that triggers a kernel error...

CVE-2024-26746

In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: Ensure safe user copy of completion record If CONFIGHARDENEDUSERCOPY is enabled, copying completion record from event log cache to user triggers a kernel bug. 1987.159822 usercopy: Kernel memory exposure attempt...

PT-2024-7727

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.8.0-rc2+ Description The issue arises because the event log cache is created using kmem cache create, which is not suitable for user copy. When CONFIG HARDENED USERCOPY is enabled, copying the completion record...