01 Record

CVE-2026-89742

rapidio: mport_cdev: fix use-after-free in dma_req_free()

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

rapidio: mport_cdev: fix use-after-free in dma_req_free()

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: 0.16% probability of exploitation activity in the next 30 days.
EPSS percentile: Equal to or higher than the score of 5.5% 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 2026-10-19.
Red Hat severity: Moderate. 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

2026-09-11 19:46Z1 MO AGO

Last updated

2026-10-19 08:51Z10 DAYS AGO

Reserved

2026-09-11

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-825Expired Pointer DereferenceBase

Data version

5.2

Document digest

e8b599b371be21a733378f4f17e9fde74387a14c36d570a674058fde952f1c7a

05 Affected products

VendorProductVersionsPlatforms

LinuxLinuxe8de370188d098bb49483c287b44925957c3c9b6 to < 00c5ed913b0dc563fbeb8a97ea8916c03bbbbf6a, e8de370188d098bb49483c287b44925957c3c9b6 to < fc79c07cdcde02c5b17633d78777de6ac2c14b29, e8de370188d098bb49483c287b44925957c3c9b6 to < 26ccfe7d69e27b0d933ae0a64a23a0cb9b9a85a6, e8de370188d098bb49483c287b44925957c3c9b6 to < bd8881c24a9520f9c3d3e855d866197f63e471a7, e8de370188d098bb49483c287b44925957c3c9b6 to < 9a9929ec875ff20922c90c96fd544ae8a2a61a8d, e8de370188d098bb49483c287b44925957c3c9b6 to < e6e925cc1f8067c65c7bec3da50a0ead3b3ef4e0, e8de370188d098bb49483c287b44925957c3c9b6 to < 211c68d817a3d9dc14c0026a59da7cac30f8147e, e8de370188d098bb49483c287b44925957c3c9b6 to < 5cbef379a94b161726c5f504598bf4791d45cedc, 4.6—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/00c5ed913b0dc563fbeb8a97ea8916c03bbbbf6a
git.kernel.orghttps://git.kernel.org/stable/c/fc79c07cdcde02c5b17633d78777de6ac2c14b29
git.kernel.orghttps://git.kernel.org/stable/c/26ccfe7d69e27b0d933ae0a64a23a0cb9b9a85a6
git.kernel.orghttps://git.kernel.org/stable/c/bd8881c24a9520f9c3d3e855d866197f63e471a7
git.kernel.orghttps://git.kernel.org/stable/c/9a9929ec875ff20922c90c96fd544ae8a2a61a8d
git.kernel.orghttps://git.kernel.org/stable/c/e6e925cc1f8067c65c7bec3da50a0ead3b3ef4e0
git.kernel.orghttps://git.kernel.org/stable/c/211c68d817a3d9dc14c0026a59da7cac30f8147e
git.kernel.orghttps://git.kernel.org/stable/c/5cbef379a94b161726c5f504598bf4791d45cedc

07 Fixed in

Debian 12

linux
Fixed in 6.1.190-1
linux-6.12
Fixed in 6.12.111-1~deb12u1

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

Debian 13

linux
Fixed in 6.12.111-1

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.