Answer in brief
CVE-2024-39293 records a Critical severity (CVSS 9.8) vulnerability in Revert "xsk: Support redirect to any socket bound to the same umem". The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 9.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | 6.9 | Not reported |
| Linux/Linuxgeneric | >=2863d665ea41282379f108e4da6c8a2366ba66db <19cb40b1064566ea09538289bfcf5bc7ecb9b6f5 || >=2863d665ea41282379f108e4da6c8a2366ba66db <7fcf26b315bbb728036da0862de6b335da83dff2 | 19cb40b1064566ea09538289bfcf5bc7ecb9b6f5, 7fcf26b315bbb728036da0862de6b335da83dff2 |
Published upstream
Jun 25, 2024
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
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.
Quoted source text, attributed separately from HOL analysis.