SB2025072727 - Out-of-bounds read in Linux kernel net driver
Published: July 27, 2025
Security Bulletin ID
SB2025072727
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Out-of-bounds read (CVE-ID: CVE-2025-38375)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to an out-of-bounds read error within the mergeable_ctx_to_truesize(), virtnet_get_headroom(), xdp_linearize_page(), receive_small_xdp() and mergeable_xdp_get_buf() functions in drivers/net/virtio_net.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/11f2d0e8be2b5e784ac45fa3da226492c3e506d8
- https://git.kernel.org/stable/c/315dbdd7cdf6aa533829774caaf4d25f1fd20e73
- https://git.kernel.org/stable/c/6aca3dad2145e864dfe4d1060f45eb1bac75dd58
- https://git.kernel.org/stable/c/80b971be4c37a4d23a7f1abc5ff33dc7733d649b
- https://git.kernel.org/stable/c/982beb7582c193544eb9c6083937ec5ac1c9d651
- https://git.kernel.org/stable/c/bc68bc3563344ccdc57d1961457cdeecab8f81ef