CVE-2024-27431: cpumap: Zero-initialise xdp_rxq_info struct before running XDP program
First published: Fri May 17 2024(Updated: )
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.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| ubuntu/linux | <5.15.0-112.122 | 5.15.0-112.122 |
| ubuntu/linux | <6.8 | 6.8 |
| ubuntu/linux-aws | <5.15.0-1063.69 | 5.15.0-1063.69 |
| ubuntu/linux-aws | <6.8 | 6.8 |
| ubuntu/linux-aws-5.15 | <5.15.0-1063.69~20.04.1 | 5.15.0-1063.69~20.04.1 |
| ubuntu/linux-aws-5.15 | <6.8 | 6.8 |
| ubuntu/linux-aws-5.4 | <6.8 | 6.8 |
| ubuntu/linux-aws-6.5 | <6.8 | 6.8 |
| ubuntu/linux-aws-fips | <6.8 | 6.8 |
| ubuntu/linux-aws-hwe | <6.8 | 6.8 |
| ubuntu/linux-azure | <5.15.0-1066.75 | 5.15.0-1066.75 |
| ubuntu/linux-azure | <6.8 | 6.8 |
| ubuntu/linux-azure-4.15 | <6.8 | 6.8 |
| ubuntu/linux-azure-5.15 | <6.8 | 6.8 |
| ubuntu/linux-azure-5.4 | <6.8 | 6.8 |
| ubuntu/linux-azure-6.5 | <6.8 | 6.8 |
| ubuntu/linux-azure-fde | <5.15.0-1067.76.1 | 5.15.0-1067.76.1 |
| ubuntu/linux-azure-fde | <6.8 | 6.8 |
| ubuntu/linux-azure-fde-5.15 | <5.15.0-1065.74~20.04.1.1 | 5.15.0-1065.74~20.04.1.1 |
| ubuntu/linux-azure-fde-5.15 | <6.8 | 6.8 |
| ubuntu/linux-azure-fips | <6.8 | 6.8 |
| ubuntu/linux-bluefield | <6.8 | 6.8 |
| ubuntu/linux-fips | <6.8 | 6.8 |
| ubuntu/linux-gcp | <5.15.0-1062.70 | 5.15.0-1062.70 |
| ubuntu/linux-gcp | <6.8 | 6.8 |
| ubuntu/linux-gcp-4.15 | <6.8 | 6.8 |
| ubuntu/linux-gcp-5.15 | <5.15.0-1062.70~20.04.1 | 5.15.0-1062.70~20.04.1 |
| ubuntu/linux-gcp-5.15 | <6.8 | 6.8 |
| ubuntu/linux-gcp-5.4 | <6.8 | 6.8 |
| ubuntu/linux-gcp-6.5 | <6.8 | 6.8 |
| ubuntu/linux-gcp-fips | <6.8 | 6.8 |
| ubuntu/linux-gke | <5.15.0-1060.66 | 5.15.0-1060.66 |
| ubuntu/linux-gke | <6.8 | 6.8 |
| ubuntu/linux-gkeop | <5.15.0-1046.53 | 5.15.0-1046.53 |
| ubuntu/linux-gkeop | <6.8 | 6.8 |
| ubuntu/linux-gkeop-5.15 | <5.15.0-1046.53~20.04.1 | 5.15.0-1046.53~20.04.1 |
| ubuntu/linux-gkeop-5.15 | <6.8 | 6.8 |
| ubuntu/linux-hwe | <6.8 | 6.8 |
| ubuntu/linux-hwe-5.15 | <5.15.0-113.123~20.04.1 | 5.15.0-113.123~20.04.1 |
| ubuntu/linux-hwe-5.15 | <6.8 | 6.8 |
| ubuntu/linux-hwe-5.4 | <6.8 | 6.8 |
| ubuntu/linux-hwe-6.5 | <6.8 | 6.8 |
| ubuntu/linux-ibm | <5.15.0-1056.59 | 5.15.0-1056.59 |
| ubuntu/linux-ibm | <6.8 | 6.8 |
| ubuntu/linux-ibm-5.15 | <5.15.0-1057.60~20.04.1 | 5.15.0-1057.60~20.04.1 |
| ubuntu/linux-ibm-5.15 | <6.8 | 6.8 |
| ubuntu/linux-ibm-5.4 | <6.8 | 6.8 |
| ubuntu/linux-intel | <6.8 | 6.8 |
| ubuntu/linux-intel-iotg | <5.15.0-1058.64 | 5.15.0-1058.64 |
| ubuntu/linux-intel-iotg | <6.8 | 6.8 |
| ubuntu/linux-intel-iotg-5.15 | <5.15.0-1058.64~20.04.1 | 5.15.0-1058.64~20.04.1 |
| ubuntu/linux-intel-iotg-5.15 | <6.8 | 6.8 |
| ubuntu/linux-iot | <6.8 | 6.8 |
| ubuntu/linux-kvm | <5.15.0-1060.65 | 5.15.0-1060.65 |
| ubuntu/linux-kvm | <6.8 | 6.8 |
| ubuntu/linux-laptop | <6.8 | 6.8 |
| ubuntu/linux-lowlatency | <5.15.0-110.120 | 5.15.0-110.120 |
| ubuntu/linux-lowlatency | <6.8 | 6.8 |
| ubuntu/linux-lowlatency-hwe-5.15 | <5.15.0-110.120~20.04.1 | 5.15.0-110.120~20.04.1 |
| ubuntu/linux-lowlatency-hwe-5.15 | <6.8 | 6.8 |
| ubuntu/linux-lowlatency-hwe-6.5 | <6.8 | 6.8 |
| ubuntu/linux-lts-xenial | <6.8 | 6.8 |
| ubuntu/linux-nvidia | <5.15.0-1058.59 | 5.15.0-1058.59 |
| ubuntu/linux-nvidia | <6.8 | 6.8 |
| ubuntu/linux-nvidia-6.5 | <6.8 | 6.8 |
| ubuntu/linux-oem-6.5 | <6.8 | 6.8 |
| ubuntu/linux-oem-6.8 | <6.8 | 6.8 |
| ubuntu/linux-oracle | <5.15.0-1061.67 | 5.15.0-1061.67 |
| ubuntu/linux-oracle | <6.8 | 6.8 |
| ubuntu/linux-oracle-5.15 | <6.8 | 6.8 |
| ubuntu/linux-oracle-5.4 | <6.8 | 6.8 |
| ubuntu/linux-oracle-6.5 | <6.8 | 6.8 |
| ubuntu/linux-raspi | <5.15.0-1058.61 | 5.15.0-1058.61 |
| ubuntu/linux-raspi | <6.8 | 6.8 |
| ubuntu/linux-raspi-5.4 | <6.8 | 6.8 |
| ubuntu/linux-riscv | <6.8 | 6.8 |
| ubuntu/linux-riscv-5.15 | <5.15.0-1059.63~20.04.1 | 5.15.0-1059.63~20.04.1 |
| ubuntu/linux-riscv-5.15 | <6.8 | 6.8 |
| ubuntu/linux-riscv-6.5 | <6.8 | 6.8 |
| ubuntu/linux-starfive | <6.8 | 6.8 |
| ubuntu/linux-starfive-6.5 | <6.8 | 6.8 |
| ubuntu/linux-xilinx-zynqmp | <5.15.0-1030.34 | 5.15.0-1030.34 |
| ubuntu/linux-xilinx-zynqmp | <6.8 | 6.8 |
| debian/linux | 5.10.218-1 5.10.221-1 6.1.94-1 6.1.99-1 6.9.10-1 6.9.12-1 |
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Reference Links
- https://git.kernel.org/stable/c/2487007aa3b9fafbd2cb14068f49791ce1d7ede5
- https://git.kernel.org/stable/c/3420b3ff1ff489c177ea1cb7bd9fbbc4e9a0be95
- https://git.kernel.org/stable/c/5f4e51abfbe6eb444fa91906a5cd083044278297
- https://git.kernel.org/stable/c/eaa7cb836659ced2d9f814ac32aa3ec193803ed6
- https://git.kernel.org/stable/c/f0363af9619c77730764f10360e36c6445c12f7b
- https://git.kernel.org/stable/c/f562e4c4aab00986dde3093c4be919c3f2b85a4a
- https://launchpad.net/bugs/cve/CVE-2024-27431
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html
- https://git.kernel.org/linus/2487007aa3b9fafbd2cb14068f49791ce1d7ede5
- https://security-tracker.debian.org/tracker/CVE-2024-27431
- https://www.cve.org/CVERecord?id=CVE-2024-27431
- https://git.kernel.org/linus/2487007aa3b9fafbd2cb14068f49791ce1d7ede5 (6.8)
- https://ubuntu.com/security/notices/USN-6820-1
- https://ubuntu.com/security/notices/USN-6821-1
- https://ubuntu.com/security/notices/USN-6821-2
- https://ubuntu.com/security/notices/USN-6828-1
- https://ubuntu.com/security/notices/USN-6820-2
- https://ubuntu.com/security/notices/USN-6821-3
- https://ubuntu.com/security/notices/USN-6821-4
- https://ubuntu.com/security/notices/USN-6871-1
- https://ubuntu.com/security/notices/USN-6892-1
- https://ubuntu.com/security/notices/USN-6919-1
- https://nvd.nist.gov/vuln/detail/CVE-2024-27431
- https://git.kernel.org/linus/9216477449f33cdbc9c9a99d49f500b7fbb81702
- https://ubuntu.com/security/CVE-2024-27431
Parent vulnerabilities
(Appears in the following advisories)
- agent/title
- agent/type
- agent/remedy
- agent/first-publish-date
- collector/launchpad-cve
- source/Launchpad
- agent/author
- agent/description
- collector/mitre-cve
- source/MITRE
- collector/nvd-api
- source/NVD
- agent/severity
- agent/last-modified-date
- agent/weakness
- collector/nvd-cve
- agent/event
- agent/references
- agent/tags
- collector/security-tracker-debian
- source/Debian
- agent/software-canonical-lookup
- agent/softwarecombine
- collector/usn-cve
- source/Ubuntu
- package-manager/debian
- package-manager/ubuntu