Out-of-bounds Read Affecting kernel-debug-devel package, versions *
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Test your applications- Snyk ID SNYK-RHEL7-KERNELDEBUGDEVEL-7195090
- published 3 Jun 2024
- disclosed 30 May 2024
Introduced: 30 May 2024
CVE-2024-36019 Open this link in a new tabHow to fix?
There is no fixed version for RHEL:7 kernel-debug-devel.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-debug-devel package and not the kernel-debug-devel package as distributed by RHEL.
See How to fix? for RHEL:7 relevant fixed versions and status.
In the Linux kernel, the following vulnerability has been resolved:
regmap: maple: Fix cache corruption in regcache_maple_drop()
When keeping the upper end of a cache block entry, the entry[] array must be indexed by the offset from the base register of the block, i.e. max - mas.index.
The code was indexing entry[] by only the register address, leading to an out-of-bounds access that copied some part of the kernel memory over the cache contents.
This bug was not detected by the regmap KUnit test because it only tests with a block of registers starting at 0, so mas.index == 0.