CVE-2021-47432: lib/generic-radix-tree.c: Don't overflow in peek()
In the Linux kernel, the following vulnerability has been resolved:
lib/generic-radix-tree.c: Don't overflow in peek()
When we started spreading new inode numbers throughout most of the 64 bit inode space, that triggered some corner case bugs, in particular some integer overflows related to the radix tree code. Oops.
Other sources
In the Linux kernel, the following vulnerability has been resolved:
lib/generic-radix-tree.c: Don't overflow in peek()
The Linux kernel CVE team has assigned CVE-2021-47432 to this issue.
Upstream advisory: https://lore.kernel.org/linux-cve-announce/2024052143-CVE-2021-47432-5e69@gregkh/T
— Red Hat
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of CVE-2021-47432?
CVE-2021-47432 has been classified with medium severity due to its potential to cause integer overflows.
How do I fix CVE-2021-47432?
To resolve CVE-2021-47432, upgrade the Linux kernel to version 6.1.64 or later.
Which versions are affected by CVE-2021-47432?
CVE-2021-47432 affects Linux kernel versions prior to 6.1.64, 6.5.13, 6.6.3, and 6.7.
What systems are impacted by CVE-2021-47432?
CVE-2021-47432 impacts various Linux distributions and any systems running affected versions of the kernel.
Is there a workaround for CVE-2021-47432?
There are no recommended workarounds for CVE-2021-47432; the best mitigation is to apply the updates.