01 Record

CVE-2024-50217

btrfs: fix use-after-free of block device file in __btrfs_free_extra_devids()

HighPUBLISHEDCNA: Linux

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

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02 Description

btrfs: fix use-after-free of block device file in __btrfs_free_extra_devids()

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 ImpacttotalSuccessful exploitation gives total 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

0.27% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 20.0% 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

Modified. NVD last modified this record on 2026-08-04.

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

2024-11-09 10:14Z1 YR AGO

Last updated

2026-08-05 11:42Z2 MO AGO

Reserved

2024-10-21

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 7.8)

CNA CVSS vector

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

Weaknesses

CWE-416Use After FreeVariant

Data version

5.2

Document digest

ca8c00c2b3cd5a4276d8f233159daaa02ad3a0e162a5968b184b55d8b0b9b568

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux142388194191a3edc9ba01cfcfd8b691e0971fb2 to < 47a83f8df39545f3f552bb6a1b6d9c30e37621dd, 142388194191a3edc9ba01cfcfd8b691e0971fb2 to < aec8e6bf839101784f3ef037dcdb9432c3f32343, 4.8—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/47a83f8df39545f3f552bb6a1b6d9c30e37621dd
git.kernel.orghttps://git.kernel.org/stable/c/aec8e6bf839101784f3ef037dcdb9432c3f32343
www.openwall.comhttp://www.openwall.com/lists/oss-security/2025/04/10/4
www.openwall.comhttp://www.openwall.com/lists/oss-security/2025/04/10/5
www.openwall.comhttp://www.openwall.com/lists/oss-security/2025/04/10/6

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
Fixed in 6.11.7-1

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

Debian 14

linux
Fixed in 6.11.7-1

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