01 Record

CVE-2024-56759

btrfs: fix use-after-free when COWing tree bock and tracing is enabled

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

btrfs: fix use-after-free when COWing tree bock and tracing is enabled

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

0.22% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 12.7% 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 2026-06-17.

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

2025-01-06 16:20Z1 YR AGO

Last updated

2026-08-05 11:46Z1 MO AGO

Reserved

2024-12-29

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

db3751f825143cef5a7cfc3b24ab284c0812524c56ddc084ffcd864163b0b3dc

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux3083ee2e18b701122a3b841db83448543a87a583 to < ba5120a2fb5f23b4d39d302e181aa5d4e28a90d1, 3083ee2e18b701122a3b841db83448543a87a583 to < 526ff5b27f090fb15040471f892cd2c9899ce314, 3083ee2e18b701122a3b841db83448543a87a583 to < 66376f1a73cba57fd0af2631d7888605b738e499, 3083ee2e18b701122a3b841db83448543a87a583 to < 9a466b8693b9add05de99af00c7bdff8259ecf19, 3083ee2e18b701122a3b841db83448543a87a583 to < c3a403d8ce36f5a809a492581de5ad17843e4701, 3083ee2e18b701122a3b841db83448543a87a583 to < 44f52bbe96dfdbe4aca3818a2534520082a07040, 3.4—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/ba5120a2fb5f23b4d39d302e181aa5d4e28a90d1
git.kernel.orghttps://git.kernel.org/stable/c/526ff5b27f090fb15040471f892cd2c9899ce314
git.kernel.orghttps://git.kernel.org/stable/c/66376f1a73cba57fd0af2631d7888605b738e499
git.kernel.orghttps://git.kernel.org/stable/c/9a466b8693b9add05de99af00c7bdff8259ecf19
git.kernel.orghttps://git.kernel.org/stable/c/c3a403d8ce36f5a809a492581de5ad17843e4701
git.kernel.orghttps://git.kernel.org/stable/c/44f52bbe96dfdbe4aca3818a2534520082a07040
lists.debian.orghttps://lists.debian.org/debian-lts-announce/2025/03/msg00001.html
lists.debian.orghttps://lists.debian.org/debian-lts-announce/2025/03/msg00002.html

01 Record index

CVE-2024-56759

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2024-56759

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References