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.
History

Fri, 08 Nov 2024 16:00:00 +0000


Thu, 17 Oct 2024 14:00:00 +0000


Wed, 28 Aug 2024 22:45:00 +0000

Type Values Removed Values Added
First Time appeared Redhat
Redhat enterprise Linux
CPEs cpe:/a:redhat:enterprise_linux:9
cpe:/o:redhat:enterprise_linux:9
Vendors & Products Redhat
Redhat enterprise Linux

cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2024-06-19T13:35:18.676Z

Updated: 2024-12-19T09:04:08.821Z

Reserved: 2024-06-18T19:36:34.919Z

Link: CVE-2024-38544

cve-icon Vulnrichment

Updated: 2024-08-02T04:12:24.974Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2024-06-19T14:15:14.687

Modified: 2024-11-21T09:26:18.280

Link: CVE-2024-38544

cve-icon Redhat

Severity : Moderate

Publid Date: 2024-06-19T00:00:00Z

Links: CVE-2024-38544 - Bugzilla