Tracker / CVE-2024-27431
CVE-2024-27431
High 7.8
In the Linux kernel, the following vulnerability has been resolved: cpumap: Zero-initialise xdp_rxq_info struct before running XDP program When running an XDP program that is attached to a cpumap entry, we don't initialise the xdp_rxq_info data structure being used in the xdp_buff that backs the XDP program invocation. Tobias noticed that this leads to random values being returned as the xdp_md->rx_queue_index value for XDP programs running in a cpumap. This means we're basically returning the contents of the uninitialised memory, which is bad. Fix this by zero-initialising the rxq data structure before running the XDP program.
Affected products and versions
| debian | debian_linux |
|---|---|
| linux | linux_kernel |
| linux | linux_kernel · 5.11 → 5.15.152 |
| linux | linux_kernel · 5.16 → 6.1.82 |
| linux | linux_kernel · 5.9 → 5.10.213 |
| linux | linux_kernel · 6.2 → 6.6.22 |
| linux | linux_kernel · 6.7 → 6.7.10 |
Analysis
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