CVE-2024-53138

In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: kTLS, Fix incorrect page refcounting The kTLS tx handling code is using a mix of get_page() and page_ref_inc() APIs to increment the page reference. But on the release path (mlx5e_ktls_tx_handle_resync_dump_comp()), only put_page() is used. This is an issue when using pages from large folios: the get_page() references are stored on the folio page while the page_ref_inc() references are stored directly in the given page. On release the folio page will be dereferenced too many times. This was found while doing kTLS testing with sendfile() + ZC when the served file was read from NFS on a kernel with NFS large folios support (commit 49b29a573da8 ("nfs: add support for large folios")).

• https://git.kernel.org/stable/c/2723e8b2cbd486cb96e5a61b22473f7fd62e18dfPatch
• https://git.kernel.org/stable/c/69fbd07f17b0fdaf8970bc705f5bf115c297839dPatch
• https://git.kernel.org/stable/c/93a14620b97c911489a5b008782f3d9b0c4aeff4Patch
• https://git.kernel.org/stable/c/a0ddb20a748b122ea86003485f7992fa5e84cc95
• https://git.kernel.org/stable/c/c7b97f9e794d8e2bbaa50e1d6c230196fd214b5e
• https://git.kernel.org/stable/c/dd6e972cc5890d91d6749bb48e3912721c4e4b25Patch
• https://git.kernel.org/stable/c/ffad2ac8c859c1c1a981fe9c4f7ff925db684a43
• https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
• https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html

Published

Dec 4, 2024

Last Modified

Aug 4, 2026

Status

Modified

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