Vulnerability · Published Mar 2, 2024 · Assigned by Linux
CVE-2024-26621mm: huge_memory: don't force huge page alignment on 32 bit
High 8.2
In plain English
A high-severity security flaw in Linux from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.0% (higher than 63% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)8.2High
Exploit odds (30 days)1.0%top 36.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
In the Linux kernel, the following vulnerability has been resolved: mm: huge_memory: don't force huge page alignment on 32 bit commit efa7df3e3bb5 ("mm: align larger anonymous mappings on THP boundaries") caused two issues [1] [2] reported on 32 bit system or compat userspace. It doesn't make too much sense to force huge page alignment on 32 bit system due to the constrained virtual address space. [1] https://lore.kernel.org/linux-mm/d0a136a0-4a31-46bc-adf4-2db109a61672@kernel.org/ [2] https://lore.kernel.org/linux-mm/CAJuCfpHXLdQy1a2B6xN2d7quTYwg2OoZseYPZTRpU0eHHKD-sQ@mail.gmail.com/
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | linux | 6.1.82-1 | DEBIAN-CVE-2024-26621 |
| Debian:13 | linux | 6.7.7-1 | DEBIAN-CVE-2024-26621 |
| Debian:14 | linux | 6.7.7-1 | DEBIAN-CVE-2024-26621 |
| Ubuntu:22.04:LTS | linux-allwinner-5.19 | no fix listed | UBUNTU-CVE-2024-26621 |
| Ubuntu:22.04:LTS | linux-aws-5.19 | no fix listed | UBUNTU-CVE-2024-26621 |
| Ubuntu:22.04:LTS | linux-aws-6.2 | no fix listed | UBUNTU-CVE-2024-26621 |
| Ubuntu:22.04:LTS | linux-aws-6.5 | no fix listed | UBUNTU-CVE-2024-26621 |
| Ubuntu:22.04:LTS | linux-azure-5.19 | no fix listed | UBUNTU-CVE-2024-26621 |
| Ubuntu:22.04:LTS | linux-azure-6.2 | no fix listed | UBUNTU-CVE-2024-26621 |
| Ubuntu:22.04:LTS | linux-azure-6.5 | no fix listed | UBUNTU-CVE-2024-26621 |
| Ubuntu:22.04:LTS | linux-azure-fde-5.19 | no fix listed | UBUNTU-CVE-2024-26621 |
| Ubuntu:22.04:LTS | linux-azure-fde-6.2 | no fix listed | UBUNTU-CVE-2024-26621 |
| Ubuntu:22.04:LTS | linux-gcp-5.19 | no fix listed | UBUNTU-CVE-2024-26621 |
| Ubuntu:22.04:LTS | linux-gcp-6.2 | no fix listed | UBUNTU-CVE-2024-26621 |
| Ubuntu:22.04:LTS | linux-gcp-6.5 | no fix listed | UBUNTU-CVE-2024-26621 |
| Ubuntu:22.04:LTS | linux-hwe-5.19 | no fix listed | UBUNTU-CVE-2024-26621 |
| Ubuntu:22.04:LTS | linux-hwe-6.2 | no fix listed | UBUNTU-CVE-2024-26621 |
| Ubuntu:22.04:LTS | linux-hwe-6.5 | no fix listed | UBUNTU-CVE-2024-26621 |
| Ubuntu:22.04:LTS | linux-intel-iot-realtime | no fix listed | UBUNTU-CVE-2024-26621 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-5.19 | no fix listed | UBUNTU-CVE-2024-26621 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-6.2 | no fix listed | UBUNTU-CVE-2024-26621 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-6.5 | no fix listed | UBUNTU-CVE-2024-26621 |
| Ubuntu:22.04:LTS | linux-nvidia-6.2 | no fix listed | UBUNTU-CVE-2024-26621 |
| Ubuntu:22.04:LTS | linux-nvidia-6.5 | no fix listed | UBUNTU-CVE-2024-26621 |
| Ubuntu:22.04:LTS | linux-oem-5.17 | no fix listed | UBUNTU-CVE-2024-26621 |
| Ubuntu:22.04:LTS | linux-oem-6.0 | no fix listed | UBUNTU-CVE-2024-26621 |
| Ubuntu:22.04:LTS | linux-oem-6.1 | no fix listed | UBUNTU-CVE-2024-26621 |
| Ubuntu:22.04:LTS | linux-oem-6.5 | no fix listed | UBUNTU-CVE-2024-26621 |
| Ubuntu:22.04:LTS | linux-oracle-6.5 | no fix listed | UBUNTU-CVE-2024-26621 |
| Ubuntu:22.04:LTS | linux-realtime | no fix listed | UBUNTU-CVE-2024-26621 |
| Ubuntu:22.04:LTS | linux-riscv | no fix listed | UBUNTU-CVE-2024-26621 |
| Ubuntu:22.04:LTS | linux-riscv-5.19 | no fix listed | UBUNTU-CVE-2024-26621 |
| Ubuntu:22.04:LTS | linux-riscv-6.5 | no fix listed | UBUNTU-CVE-2024-26621 |
| Ubuntu:22.04:LTS | linux-starfive-5.19 | no fix listed | UBUNTU-CVE-2024-26621 |
| Ubuntu:22.04:LTS | linux-starfive-6.2 | no fix listed | UBUNTU-CVE-2024-26621 |
| Ubuntu:22.04:LTS | linux-starfive-6.5 | no fix listed | UBUNTU-CVE-2024-26621 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | 1854bc6e2420472676c5c90d3d6b15f6cd640e40 – before 87632bc9ecff5ded93433bc0fca428019bdd1cfe1854bc6e2420472676c5c90d3d6b15f6cd640e40 – before 6ea9aa8d97e6563676094cb357558841732695551854bc6e2420472676c5c90d3d6b15f6cd640e40 – before 7432376c913381c5f24d373a87ff629bbde94b471854bc6e2420472676c5c90d3d6b15f6cd640e40 – before 4ef9ad19e17676b9ef071309bc62020e2373705d |
| Linux | Linux | 5.18 |
References
- https://git.kernel.org/stable/c/87632bc9ecff5ded93433bc0fca428019bdd1cfe
- https://git.kernel.org/stable/c/6ea9aa8d97e6563676094cb35755884173269555
- https://git.kernel.org/stable/c/7432376c913381c5f24d373a87ff629bbde94b47
- https://git.kernel.org/stable/c/4ef9ad19e17676b9ef071309bc62020e2373705d
- https://zolutal.github.io/aslrnt/ x_transferred
- http://www.openwall.com/lists/oss-security/2024/07/08/3 x_transferred
- http://www.openwall.com/lists/oss-security/2024/07/08/5 x_transferred
- http://www.openwall.com/lists/oss-security/2024/07/08/4 x_transferred
- http://www.openwall.com/lists/oss-security/2024/07/08/6 x_transferred
- http://www.openwall.com/lists/oss-security/2024/07/08/7 x_transferred
- http://www.openwall.com/lists/oss-security/2024/07/08/8 x_transferred
- http://www.openwall.com/lists/oss-security/2024/07/09/1 x_transferred
- http://www.openwall.com/lists/oss-security/2024/07/10/5 x_transferred
- http://www.openwall.com/lists/oss-security/2024/07/10/7 x_transferred
- http://www.openwall.com/lists/oss-security/2024/07/10/8 x_transferred
- http://www.openwall.com/lists/oss-security/2024/07/11/4 x_transferred
- http://www.openwall.com/lists/oss-security/2024/07/11/5 x_transferred
- http://www.openwall.com/lists/oss-security/2024/07/11/7 x_transferred
- http://www.openwall.com/lists/oss-security/2024/07/12/3 x_transferred
- http://www.openwall.com/lists/oss-security/2024/07/13/2 x_transferred
- http://www.openwall.com/lists/oss-security/2024/07/13/7 x_transferred
- http://www.openwall.com/lists/oss-security/2024/07/15/2 x_transferred
- http://www.openwall.com/lists/oss-security/2024/07/15/1 x_transferred
- http://www.openwall.com/lists/oss-security/2024/07/16/1 x_transferred
- http://www.openwall.com/lists/oss-security/2024/07/16/2 x_transferred
- http://www.openwall.com/lists/oss-security/2024/07/29/2 x_transferred
- http://www.openwall.com/lists/oss-security/2024/07/30/2 x_transferred