CVE-2024-46792: riscv: misaligned: Restrict user access to kernel memory
In the Linux kernel, the following vulnerability has been resolved:
riscv: misaligned: Restrict user access to kernel memory
rawcopy{to,from}user() do not call accessok(), so this code allowed userspace to access any virtual memory address.
Other sources
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— Launchpad
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
debian/linuxto a version that resolves this vulnerability.Fixed in 5.10.223-1Fixed in 5.10.234-1Fixed in 6.1.129-1Fixed in 6.1.135-1Fixed in 6.12.25-1
Event History
Frequently Asked Questions
What is the severity of CVE-2024-46792?
CVE-2024-46792 has a high severity due to its potential to allow unauthorized user access to kernel memory.
How do I fix CVE-2024-46792?
To address CVE-2024-46792, upgrade to a patched version of the Linux kernel, such as 5.10.223-1, 5.10.226-1, or any version later than 6.11-rc6.
Which versions of the Linux kernel are affected by CVE-2024-46792?
CVE-2024-46792 affects Linux kernel versions from 6.7 to 6.10.10 and the 6.11 release candidates.
Is CVE-2024-46792 specific to any particular Linux distribution?
While CVE-2024-46792 is a Linux kernel vulnerability, it may specifically affect distributions that utilize the impacted kernel versions.
Are there any mitigations available for CVE-2024-46792?
The primary mitigation for CVE-2024-46792 is to ensure the kernel is updated to a secure version as soon as possible.