CVE-2024-38544 Affecting kernel-debug-uki-virt package, versions <0:5.14.0-427.33.1.el9_4
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Test your applications- Snyk ID SNYK-ORACLE9-KERNELDEBUGUKIVIRT-7852218
- published 30 Aug 2024
- disclosed 19 Jun 2024
Introduced: 19 Jun 2024
CVE-2024-38544 Open this link in a new tabHow to fix?
Upgrade Oracle:9
kernel-debug-uki-virt
to version 0:5.14.0-427.33.1.el9_4 or higher.
This issue was patched in ELSA-2024-5928
.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-debug-uki-virt
package and not the kernel-debug-uki-virt
package as distributed by Oracle
.
See How to fix?
for Oracle:9
relevant fixed versions and status.
In the Linux kernel, the following vulnerability has been resolved:
RDMA/rxe: Fix seg fault in rxe_comp_queue_pkt
In rxe_comp_queue_pkt() an incoming response packet skb is enqueued to the resp_pkts queue and then a decision is made whether to run the completer task inline or schedule it. Finally the skb is dereferenced to bump a 'hw' performance counter. This is wrong because if the completer task is already running in a separate thread it may have already processed the skb and freed it which can cause a seg fault. This has been observed infrequently in testing at high scale.
This patch fixes this by changing the order of enqueuing the packet until after the counter is accessed.
References
- https://linux.oracle.com/cve/CVE-2024-38544.html
- https://linux.oracle.com/errata/ELSA-2024-5928.html
- https://git.kernel.org/stable/c/21b4c6d4d89030fd4657a8e7c8110fd941049794
- https://git.kernel.org/stable/c/2b23b6097303ed0ba5f4bc036a1c07b6027af5c6
- https://git.kernel.org/stable/c/30df4bef8b8e183333e9b6e9d4509d552c7da6eb
- https://git.kernel.org/stable/c/bbad88f111a1829f366c189aa48e7e58e57553fc
- https://git.kernel.org/stable/c/faa8d0ecf6c9c7c2ace3ca3e552180ada6f75e19
- https://git.kernel.org/stable/c/de5a059e36657442b5637cc16df5163e435b9cb4
- https://git.kernel.org/stable/c/e0e14dd35d4242340c7346aac60c7ff8fbf87ffc