CVE-2024-38544

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Source
https://cve.org/CVERecord?id=CVE-2024-38544
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-38544.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2024-38544
Downstream
Related
Published
2024-06-19T13:35:18.676Z
Modified
2026-03-14T12:34:33.948981Z
Severity
  • 6.3 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H CVSS Calculator
Summary
RDMA/rxe: Fix seg fault in rxe_comp_queue_pkt
Details

In the Linux kernel, the following vulnerability has been resolved:

RDMA/rxe: Fix seg fault in rxecompqueue_pkt

In rxecompqueuepkt() an incoming response packet skb is enqueued to the resppkts 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.

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/38xxx/CVE-2024-38544.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
0b1e5b99a48b5b810e3e38f1d6e0d39306b99ec0
Fixed
c91fb72a2ca6480d8d77262eef52dc5b178463a3
Fixed
de5a059e36657442b5637cc16df5163e435b9cb4
Fixed
e0e14dd35d4242340c7346aac60c7ff8fbf87ffc
Fixed
faa8d0ecf6c9c7c2ace3ca3e552180ada6f75e19
Fixed
21b4c6d4d89030fd4657a8e7c8110fd941049794
Fixed
bbad88f111a1829f366c189aa48e7e58e57553fc
Fixed
30df4bef8b8e183333e9b6e9d4509d552c7da6eb
Fixed
2b23b6097303ed0ba5f4bc036a1c07b6027af5c6

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-38544.json"