01 Record

CVE-2024-39496

btrfs: zoned: fix use-after-free due to race with dev replace

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: zoned: fix use-after-free due to race with dev replace

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

0.28% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 21.1% 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

2024-07-12 12:20Z2 YR AGO

Last updated

2026-08-05 11:33Z2 MO AGO

Reserved

2024-06-25

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

5d05deec39d4db3f5178e9047c4a8c15962ef8295f796473fdc24d2e8ac551f2

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux5b316468983dfa9473ff0f1c42e4e30b4c267141 to < 17765964703b88d8befd899f8501150bb7e07e43, 5b316468983dfa9473ff0f1c42e4e30b4c267141 to < 092571ef9a812566c8f2c9038d9c2a64c49788d6, 5b316468983dfa9473ff0f1c42e4e30b4c267141 to < a0cc006f4214b87e70983c692e05bb36c59b5752, 5b316468983dfa9473ff0f1c42e4e30b4c267141 to < 0090d6e1b210551e63cf43958dc7a1ec942cdde9, 5.11—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/17765964703b88d8befd899f8501150bb7e07e43
git.kernel.orghttps://git.kernel.org/stable/c/092571ef9a812566c8f2c9038d9c2a64c49788d6
git.kernel.orghttps://git.kernel.org/stable/c/a0cc006f4214b87e70983c692e05bb36c59b5752
git.kernel.orghttps://git.kernel.org/stable/c/0090d6e1b210551e63cf43958dc7a1ec942cdde9
lists.debian.orghttps://lists.debian.org/debian-lts-announce/2025/01/msg00001.html

07 Fixed in

Debian 12

linux
Fixed in 6.1.99-1

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

Debian 13

linux
Fixed in 6.9.7-1

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

Debian 14

linux
Fixed in 6.9.7-1

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