High 7.8Published Apr 3, 2024

CVE-2024-26772ext4: avoid allocating blocks from corrupted group in ext4_mb_find_by_goal()

Updated under an hour ago (Oct 27, 2026, 11:20 PM ET)

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It affects Linux and 8 other products. Add what you run to find out whether that includes you.

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Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: ext4: avoid allocating blocks from corrupted group in ext4_mb_find_by_goal() Places the logic for checking if the group's block bitmap is corrupt under the protection of the group lock to avoid allocating blocks from the group with a corrupted block bitmap.

CVSS: 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Modified
Record last updated: Oct 14, 2026
First seen by InfoSec Signals: Oct 14, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	163a203ddb36c36d4a1c942aececda0cc8d06aa7 builds before 5a6dcc4ad0f7f7fa8e8d127b5526e7c5f2d38a43; 163a203ddb36c36d4a1c942aececda0cc8d06aa7 builds before 6b92b1bc16d691c95b152c6dbf027ad64315668d; from 163a203ddb36c36d4a1c942aececda0cc8d06aa7 before ffeb72a80a82aba59a6774b0611f792e0ed3b0b7; 163a203ddb36c36d4a1c942aececda0cc8d06aa7 builds before 8de8305a25bfda607fc13475ebe84b978c96d7ff; from 163a203ddb36c36d4a1c942aececda0cc8d06aa7 before d639102f4cbd4cb65d1225dba3b9265596aab586; from 163a203ddb36c36d4a1c942aececda0cc8d06aa7 before d3bbe77a76bc52e9d4d0a120f1509be36e25c916; 163a203ddb36c36d4a1c942aececda0cc8d06aa7 builds before 21dbe20589c7f48e9c5d336ce6402bcebfa6d76a; from 163a203ddb36c36d4a1c942aececda0cc8d06aa7 before 832698373a25950942c04a512daa652c18a9b513	CNA record
Siemens RUGGEDCOM RST2428P siemens:ruggedcom_rst2428p (from the name)	all versions not affected	CISA ADP
Siemens SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family siemens:scalance_xc_300_xr_300_xc_400_xr_500wg_xr_500_family (from the name)	all versions not affected	CISA ADP
Siemens SCALANCE XCM-/XRM-/XCH-/XRH-300 family siemens:scalance_xcm_xrm_xch_xrh_300_family (from the name)	all versions not affected	CISA ADP
Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP siemens:simatic_s7_1500_cpu_1518_4_pn_dp_mfp (from the name)	from V3.1.0 before V3.1.5	CISA ADP
Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP siemens:simatic_s7_1500_cpu_1518f_4_pn_dp_mfp (from the name)	from V3.1.0 before V3.1.5	CISA ADP
Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP siemens:siplus_s7_1500_cpu_1518_4_pn_dp_mfp (from the name)	from V3.1.0 before V3.1.5	CISA ADP
linux linux_kernel linux:linux_kernel	before 4.19.308; from 4.20 before 5.4.270; from 5.5 before 5.10.211; from 5.11 before 5.15.150; from 5.16 before 6.1.80; from 6.2 before 6.6.19; from 6.7 before 6.7.7; 6.8; and 1 more ranges	NVD
debian debian_linux debian:debian_linux	10.0	NVD

References

References

https://git.kernel.org/stable/c/5a6dcc4ad0f7f7fa8e8d127b5526e7c5f2d38a43	patch
https://git.kernel.org/stable/c/6b92b1bc16d691c95b152c6dbf027ad64315668d	patch
https://git.kernel.org/stable/c/ffeb72a80a82aba59a6774b0611f792e0ed3b0b7	patch
https://git.kernel.org/stable/c/8de8305a25bfda607fc13475ebe84b978c96d7ff	patch
https://git.kernel.org/stable/c/d639102f4cbd4cb65d1225dba3b9265596aab586	patch
https://git.kernel.org/stable/c/d3bbe77a76bc52e9d4d0a120f1509be36e25c916	patch
https://git.kernel.org/stable/c/21dbe20589c7f48e9c5d336ce6402bcebfa6d76a	patch
https://git.kernel.org/stable/c/832698373a25950942c04a512daa652c18a9b513	patch
https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html	mailing-list
https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html	mailing-list
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The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.