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.

Classification

CVE ID: CVE-2025-37820

Affected Products

Vendor: Linux

Product: Linux

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.02% (probability of being exploited)

EPSS Percentile: 4.72% (scored less or equal to compared to others)

EPSS Date: 2025-06-06 (when was this score calculated)

References

https://nvd.nist.gov/vuln/detail/CVE-2025-37820
https://git.kernel.org/stable/c/5b83d30c63f9964acb1bc63eb8e670b9e0d2c240
https://git.kernel.org/stable/c/cefd8a2e2de46209ce66e6d30c237eb59b6c5bfa
https://git.kernel.org/stable/c/d6a9c4e6f9b3ec3ad98468c950ad214af8a2efb9
https://git.kernel.org/stable/c/eefccd889df3b49d92e7349d94c4aa7e1ba19f6c
https://git.kernel.org/stable/c/cc3628dcd851ddd8d418bf0c897024b4621ddc92

Timeline