01 Record

CVE-2026-92508

RDMA/core: Fix potential use after free in ib_free_cq()

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

RDMA/core: Fix potential use after free in ib_free_cq()

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

2026-09-17 16:10Z1 MO AGO

Last updated

2026-10-19 09:04Z10 DAYS AGO

Reserved

2026-09-16

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

286be054e405be59a9ee8a7164cb869d4aca53f4d8813deee1662e7943bdbbc5

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux43d781b9fa562f0c6e50f62c870fbfeb9dc85213 to < a804b162f9bc2b38b2ed1b4752eea9faadb1645b, 43d781b9fa562f0c6e50f62c870fbfeb9dc85213 to < 91f8a17a22ab615a03743120e19935e731f28fb9, 43d781b9fa562f0c6e50f62c870fbfeb9dc85213 to < 76f2cb4f721815c3b6262a6dc2151de88646924c, 43d781b9fa562f0c6e50f62c870fbfeb9dc85213 to < b8dcca427096fc9c50f1b376847fea72bc842d31, 43d781b9fa562f0c6e50f62c870fbfeb9dc85213 to < 9abea37942534eeb049335476178696b654b000c, 43d781b9fa562f0c6e50f62c870fbfeb9dc85213 to < 43403fe45379c64fa6276e5a8ede44493e5d2d3d, 43d781b9fa562f0c6e50f62c870fbfeb9dc85213 to < 29dc2f8e1c97372c2871a70088707933515fbd5b, 7ac277a01f9017fcde4f3f81670c995992945433, 093f87dda065e0f618dd577985eccbe85efb9b54, 5.8.17 to < 5.9, 5.9.2 to < 5.10, 5.10—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/a804b162f9bc2b38b2ed1b4752eea9faadb1645b
git.kernel.orghttps://git.kernel.org/stable/c/91f8a17a22ab615a03743120e19935e731f28fb9
git.kernel.orghttps://git.kernel.org/stable/c/76f2cb4f721815c3b6262a6dc2151de88646924c
git.kernel.orghttps://git.kernel.org/stable/c/b8dcca427096fc9c50f1b376847fea72bc842d31
git.kernel.orghttps://git.kernel.org/stable/c/9abea37942534eeb049335476178696b654b000c
git.kernel.orghttps://git.kernel.org/stable/c/43403fe45379c64fa6276e5a8ede44493e5d2d3d
git.kernel.orghttps://git.kernel.org/stable/c/29dc2f8e1c97372c2871a70088707933515fbd5b

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.