CVE-2024-39293
- Source
- https://cve.org/CVERecord?id=CVE-2024-39293
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-39293.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2024-39293
- Downstream
- Published
- 2024-06-25T14:22:39Z
- Modified
- 2026-08-12T03:51:16Z
- Severity
-
- 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- Revert "xsk: Support redirect to any socket bound to the same umem"
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
Revert "xsk: Support redirect to any socket bound to the same umem"
This reverts commit 2863d665ea41282379f108e4da6c8a2366ba66db.
This patch introduced a potential kernel crash when multiple napi instances redirect to the same AF_XDP socket. By removing the queue_index check, it is possible for multiple napi instances to access the Rx ring at the same time, which will result in a corrupted ring state which can lead to a crash when flushing the rings in __xsk_flush(). This can happen when the linked list of sockets to flush gets corrupted by concurrent accesses. A quick and small fix is not possible, so let us revert this for now.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/39xxx/CVE-2024-39293.json" }- References
-
- https://git.kernel.org/stable/c/19cb40b1064566ea09538289bfcf5bc7ecb9b6f5
- https://git.kernel.org/stable/c/7fcf26b315bbb728036da0862de6b335da83dff2
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/39xxx/CVE-2024-39293.json
- https://nvd.nist.gov/vuln/detail/CVE-2024-39293
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git