CVE-2025-21997 is an integer overflow vulnerability in the Linux kernel's xsk component, specifically within the xp_create_and_assign_umem() function, affecting Linux and Linux_kernel products. This flaw, rated Medium severity (CVSS 5.5), could allow a local attacker to cause a denial of service (A:H) by manipulating integer calculations, leading to multiple XDP buffers referencing the same memory. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 5.16, < 6.1.132CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | ||
>= 6.2, < 6.6.85CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | ||
>= 6.7, < 6.12.21CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | ||
>= 6.13, < 6.13.9CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | ||
6.14CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:6.14:rc1:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
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Oct 27, 2025xsk: fix an integer overflow in xp_create_and_assign_umem()
Apr 8, 2025kernel: xsk: fix an integer overflow in xp_create_and_assign_umem()
Apr 3, 2025