01 Record

CVE-2026-93125

bpf: Reject rdonly/rdwr_buf_size kfunc arguments that exceed u32 max

HighPUBLISHEDCNA: Linux

CNA base score7.8 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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02 Description

bpf: Reject rdonly/rdwr_buf_size kfunc arguments that exceed u32 max

03 Exploitation and scoring

Exploitation: Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision: Not assessed by CISA
EPSS probability: 0.12% probability of exploitation activity in the next 30 days.
EPSS percentile: Equal to or higher than the score of 2.5% of scored records. A rank, not a probability.
NVD base score: 7.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD analysis status: Received. NVD last modified this record on 2026-10-21.
Red Hat severity: Low. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2026-09-17 16:11Z1 MO AGO

Last updated

2026-10-21 12:51Z7 DAYS AGO

Reserved

2026-09-17

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 7.8)

CNA CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weaknesses

CWE-805Buffer Access with Incorrect Length ValueBase

Data version

5.2

Document digest

af2802d02f1a3f4452881319272059aa56aa91cbf61d6a1cb376894aa6432159

05 Affected products

VendorProductVersionsPlatforms

LinuxLinuxeb1f7f71c126c8fd50ea81af98f97c4b581ea4ae to < 2147065d3a4e1d5d42ae553fef165f17ec5e0e79, eb1f7f71c126c8fd50ea81af98f97c4b581ea4ae to < b6ac0b5732047d43172b9dfbe6b57b9b8de303c2, eb1f7f71c126c8fd50ea81af98f97c4b581ea4ae to < 93a20b14f8627b2d3486e3ec1d3f2e7275a506ec, eb1f7f71c126c8fd50ea81af98f97c4b581ea4ae to < 56a3846830ac95a472297d0cbba75cbff29540bb, eb1f7f71c126c8fd50ea81af98f97c4b581ea4ae to < 2aaf67f0516fde29620d0edfc29c01b9ea7ad430, 6.1—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/2147065d3a4e1d5d42ae553fef165f17ec5e0e79
git.kernel.orghttps://git.kernel.org/stable/c/b6ac0b5732047d43172b9dfbe6b57b9b8de303c2
git.kernel.orghttps://git.kernel.org/stable/c/93a20b14f8627b2d3486e3ec1d3f2e7275a506ec
git.kernel.orghttps://git.kernel.org/stable/c/56a3846830ac95a472297d0cbba75cbff29540bb
git.kernel.orghttps://git.kernel.org/stable/c/2aaf67f0516fde29620d0edfc29c01b9ea7ad430

07 Fixed in

Debian 12

linux
No fix yet

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

linux
No fix yet

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

linux
Fixed in 7.2.6-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.