Description (CNA)
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 (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 9216477449f33cdbc9c9a99d49f500b7fbb81702 before 5f4e51abfbe6eb444fa91906a5cd083044278297; affected 9216477449f33cdbc9c9a99d49f500b7fbb81702 before f0363af9619c77730764f10360e36c6445c12f7b; affected 9216477449f33cdbc9c9a99d49f500b7fbb81702 before 3420b3ff1ff489c177ea1cb7bd9fbbc4e9a0be95; affected 9216477449f33cdbc9c9a99d49f500b7fbb81702 before f562e4c4aab00986dde3093c4be919c3f2b85a4a; affected 9216477449f33cdbc9c9a99d49f500b7fbb81702 before eaa7cb836659ced2d9f814ac32aa3ec193803ed6; affected 9216477449f33cdbc9c9a99d49f500b7fbb81702 before 2487007aa3b9fafbd2cb14068f49791ce1d7ede5 |
| Linux / Linux | affected 5.9; unaffected 0 before 5.9; unaffected 5.10.213 through 5.10.*; unaffected 5.15.152 through 5.15.*; unaffected 6.1.82 through 6.1.*; unaffected 6.6.22 through 6.6.*; unaffected 6.7.10 through 6.7.*; unaffected 6.8 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/5f4e51abfbe6eb444fa91906a5cd083044278297
- https://git.kernel.org/stable/c/f0363af9619c77730764f10360e36c6445c12f7b
- https://git.kernel.org/stable/c/3420b3ff1ff489c177ea1cb7bd9fbbc4e9a0be95
- https://git.kernel.org/stable/c/f562e4c4aab00986dde3093c4be919c3f2b85a4a
- https://git.kernel.org/stable/c/eaa7cb836659ced2d9f814ac32aa3ec193803ed6
- https://git.kernel.org/stable/c/2487007aa3b9fafbd2cb14068f49791ce1d7ede5
ADP enrichment
No English description supplied.
No references supplied.
No English description supplied.
- https://git.kernel.org/stable/c/5f4e51abfbe6eb444fa91906a5cd083044278297
- https://git.kernel.org/stable/c/f0363af9619c77730764f10360e36c6445c12f7b
- https://git.kernel.org/stable/c/3420b3ff1ff489c177ea1cb7bd9fbbc4e9a0be95
- https://git.kernel.org/stable/c/f562e4c4aab00986dde3093c4be919c3f2b85a4a
- https://git.kernel.org/stable/c/eaa7cb836659ced2d9f814ac32aa3ec193803ed6
- https://git.kernel.org/stable/c/2487007aa3b9fafbd2cb14068f49791ce1d7ede5
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html
No English description supplied.