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 |
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Reference Links
- https://git.kernel.org/stable/c/7988bdbbb85ac85a847baf09879edcd0f70521dc
- https://git.kernel.org/stable/c/87cb3b0054e53e0155b630bdf8fb714ded62565f
- https://git.kernel.org/stable/c/daac56dd98e1ba814c878ac0acd482a37f2ab94b
- https://git.kernel.org/stable/c/de5857fa7bcc9a496a914c7e21390be873109f26
- https://git.kernel.org/stable/c/df6fed0a2a1a5e57f033bca40dc316b18e0d0ce6
- https://git.kernel.org/stable/c/ea701c1849e7250ea41a4f7493e0a5f136c1d47e
- 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
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- version/linux kernel/6.12-rc2
- version/linux kernel/6.12-rc3