CVE-2024-53138

En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net/mlx5e: kTLS, Fix wrong page refcounting El código de manejo de tx de kTLS usa una combinación de API get_page() y page_ref_inc() para incrementar la referencia de página. Pero en la ruta de lanzamiento (mlx5e_ktls_tx_handle_resync_dump_comp()), solo se usa put_page(). Este es un problema cuando se usan páginas de folios grandes: las referencias get_page() se almacenan en la página del folio mientras que las referencias page_ref_inc() se almacenan directamente en la página dada. En el lanzamiento, la página del folio se desreferenciará demasiadas veces. Esto se encontró al hacer pruebas de kTLS con sendfile() + ZC cuando el archivo servido se leyó desde NFS en un kernel con soporte para folios grandes de NFS (commit 49b29a573da8 ("nfs: agregar soporte para folios grandes")).

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")).

Attila Szász discovered that the HFS+ file system implementation in the Linux Kernel contained a heap overflow vulnerability. An attacker could use a specially crafted file system image that, when mounted, could cause a denial of service or possibly execute arbitrary code. Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system.