01 Record

CVE-2024-47706

block, bfq: fix possible UAF for bfqq->bic with merge chain

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

View raw JSON

02 Description

block, bfq: fix possible UAF for bfqq->bic with merge chain

03 Exploitation and scoring

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.24% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 15.5% of scored records. A rank, not a probability.

NVD base score

5.5 (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:N/I:N/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-10-15.

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

2024-10-21 11:53Z2 YR AGO

Last updated

2026-10-15 00:52Z14 DAYS AGO

Reserved

2024-09-30

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-416Use After FreeVariant

Data version

5.2

Document digest

a0c6a3170971067990bd4bc8446ded7906585bc4ebae836c308a53f88909d136

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux36eca894832351feed9072d0f97eb06fc9482ca4 to < a9bdd5b36887d2bacb8bc777fd18317c99fc2587, 36eca894832351feed9072d0f97eb06fc9482ca4 to < bc2140534b2aae752e4f7cb4489642dbb5ec4777, 36eca894832351feed9072d0f97eb06fc9482ca4 to < e1277ae780cca4e69ef5468d4582dfd48f0b8320, 36eca894832351feed9072d0f97eb06fc9482ca4 to < 8aa9de02a4be2e7006e636816ce19b0d667ceaa3, 36eca894832351feed9072d0f97eb06fc9482ca4 to < ddbdaad123254fb53e32480cb74a486a6868b1e0, 36eca894832351feed9072d0f97eb06fc9482ca4 to < 7faed2896d78e48ec96229e73b30b0af6c00a9aa, 36eca894832351feed9072d0f97eb06fc9482ca4 to < 880692ee233ba63808182705b3333403413b58f5, 36eca894832351feed9072d0f97eb06fc9482ca4 to < 6d130db286ad0ea392c96ebb2551acf0d7308048, 36eca894832351feed9072d0f97eb06fc9482ca4 to < 18ad4df091dd5d067d2faa8fce1180b79f7041a7, 4.12—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/a9bdd5b36887d2bacb8bc777fd18317c99fc2587
git.kernel.orghttps://git.kernel.org/stable/c/bc2140534b2aae752e4f7cb4489642dbb5ec4777
git.kernel.orghttps://git.kernel.org/stable/c/e1277ae780cca4e69ef5468d4582dfd48f0b8320
git.kernel.orghttps://git.kernel.org/stable/c/8aa9de02a4be2e7006e636816ce19b0d667ceaa3
git.kernel.orghttps://git.kernel.org/stable/c/ddbdaad123254fb53e32480cb74a486a6868b1e0
git.kernel.orghttps://git.kernel.org/stable/c/7faed2896d78e48ec96229e73b30b0af6c00a9aa
git.kernel.orghttps://git.kernel.org/stable/c/880692ee233ba63808182705b3333403413b58f5
git.kernel.orghttps://git.kernel.org/stable/c/6d130db286ad0ea392c96ebb2551acf0d7308048
git.kernel.orghttps://git.kernel.org/stable/c/18ad4df091dd5d067d2faa8fce1180b79f7041a7
lists.debian.orghttps://lists.debian.org/debian-lts-announce/2025/03/msg00002.html
lists.debian.orghttps://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-265688.html
cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-355557.html

07 Fixed in

Debian 12

linux
Fixed in 6.1.115-1

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

Debian 13

linux
Fixed in 6.11.2-1

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

Debian 14

linux
Fixed in 6.11.2-1

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