CVE-2024-50208: RDMA/bnxt_re: Fix a bug while setting up Level-2 PBL pages
First published: Fri Nov 08 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: RDMA/bnxt_re: Fix a bug while setting up Level-2 PBL pages Avoid memory corruption while setting up Level-2 PBL pages for the non MR resources when num_pages > 256K. There will be a single PDE page address (contiguous pages in the case of > PAGE_SIZE), but, current logic assumes multiple pages, leading to invalid memory access after 256K PBL entries in the PDE.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | >=5.7<5.10.229 | |
| Linux Kernel | >=5.11<5.15.170 | |
| Linux Kernel | >=5.16<6.1.115 | |
| Linux Kernel | >=6.2<6.6.59 | |
| Linux Kernel | >=6.7<6.11.6 | |
| Linux Kernel | =6.12-rc1 | |
| Linux Kernel | =6.12-rc2 | |
| Linux Kernel | =6.12-rc3 | |
| debian/linux | <=5.10.223-1 | 5.10.234-1 6.1.129-1 6.1.133-1 6.12.22-1 |
| debian/linux-6.1 | 6.1.129-1~deb11u1 |
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Reference Links
- https://git.kernel.org/stable/c/df6fed0a2a1a5e57f033bca40dc316b18e0d0ce6
- https://git.kernel.org/stable/c/de5857fa7bcc9a496a914c7e21390be873109f26
- https://git.kernel.org/stable/c/ea701c1849e7250ea41a4f7493e0a5f136c1d47e
- https://git.kernel.org/stable/c/87cb3b0054e53e0155b630bdf8fb714ded62565f
- https://git.kernel.org/stable/c/daac56dd98e1ba814c878ac0acd482a37f2ab94b
- https://git.kernel.org/stable/c/7988bdbbb85ac85a847baf09879edcd0f70521dc
- https://lore.kernel.org/linux-cve-announce/2024110806-CVE-2024-50208-08dc@gregkh/T
- https://access.redhat.com/errata/RHSA-2025:0059
- https://bugzilla.redhat.com/show_bug.cgi?id=2324611
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-50208
- https://nvd.nist.gov/vuln/detail/CVE-2024-50208
- https://launchpad.net/bugs/cve/CVE-2024-50208
- https://security-tracker.debian.org/tracker/CVE-2024-50208
- https://ubuntu.com/security/CVE-2024-50208
- https://git.kernel.org/linus/7988bdbbb85ac85a847baf09879edcd0f70521dc
Frequently Asked Questions
What is the severity of CVE-2024-50208?
CVE-2024-50208 is rated as a moderate severity vulnerability affecting the Linux kernel.
How do I fix CVE-2024-50208?
To fix CVE-2024-50208, update the Linux kernel to a version that includes the resolution for this vulnerability.
Which versions of the Linux kernel are affected by CVE-2024-50208?
CVE-2024-50208 affects Linux kernel versions from 5.7 to 6.12-rc3 across specified ranges.
What type of vulnerability is CVE-2024-50208?
CVE-2024-50208 is a memory corruption vulnerability that occurs during the setup of Level-2 PBL pages.
What impact does CVE-2024-50208 have on systems?
CVE-2024-50208 can lead to memory corruption, potentially resulting in unpredictable behavior and system instability.
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