CVE-2025-37820
xen-netfront: handle NULL returned by xdp_convert_buff_to_frame()
Description
In the Linux kernel, the following vulnerability has been resolved: xen-netfront: handle NULL returned by xdp_convert_buff_to_frame() The function xdp_convert_buff_to_frame() may return NULL if it fails to correctly convert the XDP buffer into an XDP frame due to memory constraints, internal errors, or invalid data. Failing to check for NULL may lead to a NULL pointer dereference if the result is used later in processing, potentially causing crashes, data corruption, or undefined behavior. On XDP redirect failure, the associated page must be released explicitly if it was previously retained via get_page(). Failing to do so may result in a memory leak, as the pages reference count is not decremented.
INFO
Published Date :
May 8, 2025, 7:15 a.m.
Last Modified :
Nov. 12, 2025, 9:24 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Update the Linux kernel to a patched version.
- Ensure proper memory management in XDP functions.
- Test XDP functionality after updates.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-37820.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-37820 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-37820
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-37820 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-37820 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Nov. 12, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Added CWE CWE-476 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.13 up to (excluding) 6.14.5 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7 up to (excluding) 6.12.26 *cpe:2.3:o:linux:linux_kernel:6.15:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.15:rc2:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.15:rc3:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2 up to (excluding) 6.6.89 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.9 up to (excluding) 6.1.136 Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* Added Reference Type kernel.org: https://git.kernel.org/stable/c/5b83d30c63f9964acb1bc63eb8e670b9e0d2c240 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/cc3628dcd851ddd8d418bf0c897024b4621ddc92 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/cefd8a2e2de46209ce66e6d30c237eb59b6c5bfa Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/d6a9c4e6f9b3ec3ad98468c950ad214af8a2efb9 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/eefccd889df3b49d92e7349d94c4aa7e1ba19f6c Types: Patch Added Reference Type CVE: https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html Types: Mailing List, Third Party Advisory -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 03, 2025
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 08, 2025
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: xen-netfront: handle NULL returned by xdp_convert_buff_to_frame() The function xdp_convert_buff_to_frame() may return NULL if it fails to correctly convert the XDP buffer into an XDP frame due to memory constraints, internal errors, or invalid data. Failing to check for NULL may lead to a NULL pointer dereference if the result is used later in processing, potentially causing crashes, data corruption, or undefined behavior. On XDP redirect failure, the associated page must be released explicitly if it was previously retained via get_page(). Failing to do so may result in a memory leak, as the pages reference count is not decremented. Added Reference https://git.kernel.org/stable/c/5b83d30c63f9964acb1bc63eb8e670b9e0d2c240 Added Reference https://git.kernel.org/stable/c/cc3628dcd851ddd8d418bf0c897024b4621ddc92 Added Reference https://git.kernel.org/stable/c/cefd8a2e2de46209ce66e6d30c237eb59b6c5bfa Added Reference https://git.kernel.org/stable/c/d6a9c4e6f9b3ec3ad98468c950ad214af8a2efb9 Added Reference https://git.kernel.org/stable/c/eefccd889df3b49d92e7349d94c4aa7e1ba19f6c