01 Record

CVE-2024-39276

ext4: fix mb_cache_entry's e_refcnt leak in ext4_xattr_block_cache_find()

MediumPUBLISHEDCNA: Linux

CNA base score5.5 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

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02 Description

ext4: fix mb_cache_entry's e_refcnt leak in ext4_xattr_block_cache_find()

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

0.23% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 14.3% 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:H/I:N/A:N

NVD analysis status

Analyzed. NVD last modified this record on 2026-06-17.

Red Hat severity

Low. 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

2024-06-25 14:22Z2 YR AGO

Last updated

2026-05-23 15:49Z3 MO AGO

Reserved

2024-06-24

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Medium (CVSS 5.5)

CNA CVSS vector

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

Weaknesses

CWE-402Transmission of Private Resources into a New Sphere ('Resource Leak')Class

Data version

5.2

Document digest

4d6894b06ff3cd9651d2aae58d3bf00c3b56f4f624925187ebdeb908f9627203

05 Affected products

VendorProductVersionsPlatforms

LinuxLinuxb878c8a7f08f0c225b6a46ba1ac867e9c5d17807 to < 9ad75e78747b5a50dc5a52f0f8e92e920a653f16, fb265c9cb49e2074ddcdd4de99728aefdd3b3592 to < 896a7e7d0d555ad8b2b46af0c2fa7de7467f9483, fb265c9cb49e2074ddcdd4de99728aefdd3b3592 to < 76dc776153a47372719d664e0fc50d6355791abb, fb265c9cb49e2074ddcdd4de99728aefdd3b3592 to < 681ff9a09accd8a4379f8bd30b7a1641ee19bb3e, fb265c9cb49e2074ddcdd4de99728aefdd3b3592 to < e941b712e758f615d311946bf98216e79145ccd9, fb265c9cb49e2074ddcdd4de99728aefdd3b3592 to < a95df6f04f2c37291adf26a74205cde0314d4577, fb265c9cb49e2074ddcdd4de99728aefdd3b3592 to < b37c0edef4e66fb21a2fbc211471195a383e5ab8, fb265c9cb49e2074ddcdd4de99728aefdd3b3592 to < 0c0b4a49d3e7f49690a6827a41faeffad5df7e21, 9da1f6d06b7a6d068e68fcfd7cbbf6b586d888e1, 81313ed2c705d958744882a269bf4a5e3ddec95e, 4.19.14 to < 4.19.316, 4.14.92 to < 4.15, 4.20.1 to < 4.21, 5.0—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/9ad75e78747b5a50dc5a52f0f8e92e920a653f16
git.kernel.orghttps://git.kernel.org/stable/c/896a7e7d0d555ad8b2b46af0c2fa7de7467f9483
git.kernel.orghttps://git.kernel.org/stable/c/76dc776153a47372719d664e0fc50d6355791abb
git.kernel.orghttps://git.kernel.org/stable/c/681ff9a09accd8a4379f8bd30b7a1641ee19bb3e
git.kernel.orghttps://git.kernel.org/stable/c/e941b712e758f615d311946bf98216e79145ccd9
git.kernel.orghttps://git.kernel.org/stable/c/a95df6f04f2c37291adf26a74205cde0314d4577
git.kernel.orghttps://git.kernel.org/stable/c/b37c0edef4e66fb21a2fbc211471195a383e5ab8
git.kernel.orghttps://git.kernel.org/stable/c/0c0b4a49d3e7f49690a6827a41faeffad5df7e21

01 Record index

CVE-2024-39276

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2024-39276

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References