CVE-2025-21848: nfp: bpf: Add check for nfp_app_ctrl_msg_alloc()
Vulnerability summary
CVE-2025-21848 is a medium (CVSS 5.5) NULL Pointer Dereference vulnerability in linux. EPSS estimates a 0.25% chance of exploitation in the next 30 days, higher than 17% of scored vulnerabilities.
Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 55 · Related 50Timeline
- 12-03-2025PublishedVulnerability first disclosed.
- 15-10-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: nfp: bpf: Add check for nfp_app_ctrl_msg_alloc() Add check for the return value of nfp_app_ctrl_msg_alloc() in nfp_bpf_cmsg_alloc() to prevent null pointer dereference.
CVSS metrics
4 scores · 4 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- NVDNIST5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.25%
Chance of exploitation in the next 30 days
Percentile
17%
Versus all other CVEs
30-day change
Increase +0.01 pp
From 0.25% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu133 products
- linux< 5.4.0-216.236 | < 5.15.0-140.150 | < 6.8.0-78.78
- linux-allwinner-5.19All versions (No fix recorded)
- linux-aws< 5.4.0-1146.156 | < 5.15.0-1084.91 | < 6.8.0-1035.37
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Linux2 products
- linux≥ ff3d43f7568c82b335d7df2d40a31447c3fce10c, < d64c6ca420019712e194fe095b55f87363e22a9a | ≥ ff3d43f7568c82b335d7df2d40a31447c3fce10c, < e976ea6c5e1b005c64467cbf94a8577aae9c7d81 | ≥ ff3d43f7568c82b335d7df2d40a31447c3fce10c, < 924b239f9704566e0d86abd894d2d64bd73c11eb | ≥ ff3d43f7568c82b335d7df2d40a31447c3fce10c, < 1358d8e07afdf21d49ca6f00c56048442977e00a | ≥ ff3d43f7568c82b335d7df2d40a31447c3fce10c, < 29ccb1e4040da6ff02b7e64efaa2f8e6bf06020d | ≥ ff3d43f7568c82b335d7df2d40a31447c3fce10c, < 897c32cd763fd11d0b6ed024c52f44d2475bb820 | ≥ ff3d43f7568c82b335d7df2d40a31447c3fce10c, < bd97f60750bb581f07051f98e31dfda59d3a783b | ≥ ff3d43f7568c82b335d7df2d40a31447c3fce10c, < 878e7b11736e062514e58f3b445ff343e6705537 | 4.16
- linux_kernel≥ 4.16, < 6.1.130 | ≥ 6.2, < 6.6.80 | ≥ 6.7, < 6.12.17 | ≥ 6.13, < 6.13.5 | 6.14:rc1 | 6.14:rc2 | 6.14:rc3
Debian1 product
- linux< 6.1.133-1 | < 6.12.17-1
3 vendors · 136 products