CVE-2024-49934: fs/inode: Prevent dump_mapping() accessing invalid dentry.d_name.name
fs/inode: Prevent dumpmapping() accessing invalid dentry.dname.name
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 6.1.129-1Fixed in 6.1.135-1Fixed in 6.12.25-1Fixed in 6.12.27-1 - Upgrade
Upgrade
debian/linux-6.1to a version that resolves this vulnerability.Fixed in 6.1.129-1~deb11u1 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 6.6.64.2-9
Event History
Frequently Asked Questions
What is the severity of CVE-2024-49934?
CVE-2024-49934 has a severity rating that indicates it could lead to crashes in affected Linux kernel versions during specific operations.
How do I fix CVE-2024-49934?
To mitigate CVE-2024-49934, update your Linux kernel to version 6.11.3 or later, or to secure patches like 6.1.123-1 or 6.12.15-1.
Which versions of the Linux kernel are affected by CVE-2024-49934?
CVE-2024-49934 affects Linux kernel versions below 6.11.3 and earlier versions such as 5.10.x line.
What causes the CVE-2024-49934 vulnerability?
CVE-2024-49934 vulnerability is caused by issues in the `dump_mapping()` function accessing invalid memory entries during the hot-removal of memory devices.
Can CVE-2024-49934 lead to data loss?
Yes, exploitation of CVE-2024-49934 may lead to system crashes that could result in potential data loss.