CVE-2024-53138
net/mlx5e: kTLS, Fix incorrect page refcounting
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
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")).
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")).
CVSS Scores
SSVC
- Decision:-
Timeline
- 2024-11-19 CVE Reserved
- 2024-12-04 CVE Published
- 2024-12-17 EPSS Updated
- 2024-12-19 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
CAPEC
References (8)
| URL | Tag | Source |
|---|---|---|
| https://git.kernel.org/stable/c/84d1bb2b139e0184b1754aa1b5776186b475fce8 | Vuln. Introduced |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 5.4 < 5.4.287 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.4 < 5.4.287" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 5.4 < 5.10.231 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.4 < 5.10.231" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 5.4 < 5.15.174 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.4 < 5.15.174" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 5.4 < 6.1.119 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.4 < 6.1.119" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 5.4 < 6.6.63 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.4 < 6.6.63" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 5.4 < 6.11.10 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.4 < 6.11.10" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 5.4 < 6.12 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.4 < 6.12" | en |
Affected
| ||||||