NULL Pointer Dereference Affecting kernel-debug-core package, versions *
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Test your applications- Snyk ID SNYK-RHEL8-KERNELDEBUGCORE-8287655
- published 23 Oct 2024
- disclosed 21 Oct 2024
Introduced: 21 Oct 2024
CVE-2024-47705 Open this link in a new tabHow to fix?
There is no fixed version for RHEL:8
kernel-debug-core
.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-debug-core
package and not the kernel-debug-core
package as distributed by RHEL
.
See How to fix?
for RHEL:8
relevant fixed versions and status.
In the Linux kernel, the following vulnerability has been resolved:
block: fix potential invalid pointer dereference in blk_add_partition
The blk_add_partition() function initially used a single if-condition (IS_ERR(part)) to check for errors when adding a partition. This was modified to handle the specific case of -ENXIO separately, allowing the function to proceed without logging the error in this case. However, this change unintentionally left a path where md_autodetect_dev() could be called without confirming that part is a valid pointer.
This commit separates the error handling logic by splitting the initial if-condition, improving code readability and handling specific error scenarios explicitly. The function now distinguishes the general error case from -ENXIO without altering the existing behavior of md_autodetect_dev() calls.
References
- https://access.redhat.com/security/cve/CVE-2024-47705
- https://git.kernel.org/stable/c/26e197b7f9240a4ac301dd0ad520c0c697c2ea7d
- https://git.kernel.org/stable/c/4bc4272e2506941c3f3d4fb8b0c659ee814dcf6f
- https://git.kernel.org/stable/c/64cf2a39202ca2d9df5ee70eb310b6141ce2b8ed
- https://git.kernel.org/stable/c/652039ba477c9a4ab43740cf2cb0d068d53508c2
- https://git.kernel.org/stable/c/80f5bfbb80ea1615290dbc24f49d3d8c86db58fe
- https://git.kernel.org/stable/c/afe53ea9b378c376101d99d216f13b6256f75189
- https://git.kernel.org/stable/c/cc4d21d9492db4e534d3e01253cf885c90dd2a8b