CVE-2023-52834 Affecting kernel-zfcpdump-modules-internal package, versions *
Threat Intelligence
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk ID SNYK-RHEL9-KERNELZFCPDUMPMODULESINTERNAL-7027790
- published 23 May 2024
- disclosed 21 May 2024
How to fix?
There is no fixed version for RHEL:9 kernel-zfcpdump-modules-internal.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-zfcpdump-modules-internal package and not the kernel-zfcpdump-modules-internal package as distributed by RHEL.
See How to fix? for RHEL:9 relevant fixed versions and status.
In the Linux kernel, the following vulnerability has been resolved:
atl1c: Work around the DMA RX overflow issue
This is based on alx driver commit 881d0327db37 ("net: alx: Work around the DMA RX overflow issue").
The alx and atl1c drivers had RX overflow error which was why a custom allocator was created to avoid certain addresses. The simpler workaround then created for alx driver, but not for atl1c due to lack of tester.
Instead of using a custom allocator, check the allocated skb address and use skb_reserve() to move away from problematic 0x...fc0 address.
Tested on AR8131 on Acer 4540.
References
- https://access.redhat.com/security/cve/CVE-2023-52834
- https://git.kernel.org/stable/c/32f08b7b430ee01ec47d730f961a3306c1c7b6fb
- https://git.kernel.org/stable/c/54a6152da4993ec8e4b53dc3cf577f5a2c829afa
- https://git.kernel.org/stable/c/57e44ff9c2c9747b2b1a53556810b0e5192655d6
- https://git.kernel.org/stable/c/86565682e9053e5deb128193ea9e88531bbae9cf
- https://git.kernel.org/stable/c/c29a89b23f67ee592f4dee61f9d7efbf86d60315