Action not permitted
Modal body text goes here.
Modal Title
Modal Body
EUVD-2026-316964
European Vulnerability Database identifier assigned by ENISAReserved
2026-10-02 07:36
Assigner
ENISA
Alias of
a CVE record, shown under related vulnerabilities.
This identifier carries no description, severity or references of its own:
they belong to that CVE.
{
"assigner": "ENISA",
"date_reserved": "2026-10-02T07:36:42.338509+00:00",
"id": "EUVD-2026-316964"
}
CVE-2024-35807 (GCVE-0-2024-35807)
Vulnerability from cvelistv5 – Published: 2024-05-17 13:23 – Updated: 2026-05-12 11:52
VLAI
EPSS
VEX
Title
ext4: fix corruption during on-line resize
Summary
In the Linux kernel, the following vulnerability has been resolved:
ext4: fix corruption during on-line resize
We observed a corruption during on-line resize of a file system that is
larger than 16 TiB with 4k block size. With having more then 2^32 blocks
resize_inode is turned off by default by mke2fs. The issue can be
reproduced on a smaller file system for convenience by explicitly
turning off resize_inode. An on-line resize across an 8 GiB boundary (the
size of a meta block group in this setup) then leads to a corruption:
dev=/dev/<some_dev> # should be >= 16 GiB
mkdir -p /corruption
/sbin/mke2fs -t ext4 -b 4096 -O ^resize_inode $dev $((2 * 2**21 - 2**15))
mount -t ext4 $dev /corruption
dd if=/dev/zero bs=4096 of=/corruption/test count=$((2*2**21 - 4*2**15))
sha1sum /corruption/test
# 79d2658b39dcfd77274e435b0934028adafaab11 /corruption/test
/sbin/resize2fs $dev $((2*2**21))
# drop page cache to force reload the block from disk
echo 1 > /proc/sys/vm/drop_caches
sha1sum /corruption/test
# 3c2abc63cbf1a94c9e6977e0fbd72cd832c4d5c3 /corruption/test
2^21 = 2^15*2^6 equals 8 GiB whereof 2^15 is the number of blocks per
block group and 2^6 are the number of block groups that make a meta
block group.
The last checksum might be different depending on how the file is laid
out across the physical blocks. The actual corruption occurs at physical
block 63*2^15 = 2064384 which would be the location of the backup of the
meta block group's block descriptor. During the on-line resize the file
system will be converted to meta_bg starting at s_first_meta_bg which is
2 in the example - meaning all block groups after 16 GiB. However, in
ext4_flex_group_add we might add block groups that are not part of the
first meta block group yet. In the reproducer we achieved this by
substracting the size of a whole block group from the point where the
meta block group would start. This must be considered when updating the
backup block group descriptors to follow the non-meta_bg layout. The fix
is to add a test whether the group to add is already part of the meta
block group or not.
Severity
No CVSS data available.
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-06-12 15:25 UTC
Assigner
References
13 references
Impacted products
6 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
01f795f9e0d67adeccc61a8b20c28acb45fa5fd8 , < 75cc31c2e7193b69f5d25650bda5bb42ed92f8a1
(git)
Affected: 01f795f9e0d67adeccc61a8b20c28acb45fa5fd8 , < ee4e9c1976147a850f6085a13fca95bcaa00d84c (git) Affected: 01f795f9e0d67adeccc61a8b20c28acb45fa5fd8 , < e8e8b197317228b5089ed9e7802dadf3ccaa027a (git) Affected: 01f795f9e0d67adeccc61a8b20c28acb45fa5fd8 , < 239c669edb2bffa1aa2612519b1d438ab35d6be6 (git) Affected: 01f795f9e0d67adeccc61a8b20c28acb45fa5fd8 , < fb1088d51bbaa0faec5a55d4f5818a9ab79e24df (git) Affected: 01f795f9e0d67adeccc61a8b20c28acb45fa5fd8 , < 37b6a3ba793bbbae057f5b991970ebcc52cb3db5 (git) Affected: 01f795f9e0d67adeccc61a8b20c28acb45fa5fd8 , < b461910af8ba3bed80f48c2bf852686d05c6fc5c (git) Affected: 01f795f9e0d67adeccc61a8b20c28acb45fa5fd8 , < 722d2c01b8b108f8283d1b7222209d5b2a5aa7bd (git) Affected: 01f795f9e0d67adeccc61a8b20c28acb45fa5fd8 , < a6b3bfe176e8a5b05ec4447404e412c2a3fc92cc (git) |
|
| Linux | Linux |
Affected:
3.7
Unaffected: 0 , < 3.7 (semver) Unaffected: 4.19.312 , ≤ 4.19.* (semver) Unaffected: 5.4.274 , ≤ 5.4.* (semver) Unaffected: 5.10.215 , ≤ 5.10.* (semver) Unaffected: 5.15.154 , ≤ 5.15.* (semver) Unaffected: 6.1.84 , ≤ 6.1.* (semver) Unaffected: 6.6.24 , ≤ 6.6.* (semver) Unaffected: 6.7.12 , ≤ 6.7.* (semver) Unaffected: 6.8.3 , ≤ 6.8.* (semver) Unaffected: 6.9 , ≤ * (original_commit_for_fix) |
|
| Siemens | SIMATIC S7-1500 TM MFP - GNU/Linux subsystem |
Affected:
0 , < *
(custom)
|
|
| Siemens | SIMATIC S7-1500 CPU 1518-4 PN/DP MFP |
Affected:
V3.1.0 , < V3.1.5
(custom)
|
|
| Siemens | SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP |
Affected:
V3.1.0 , < V3.1.5
(custom)
|
|
| Siemens | SIPLUS S7-1500 CPU 1518-4 PN/DP MFP |
Affected:
V3.1.0 , < V3.1.5
(custom)
|
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2024-35807",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-06-12T15:25:51.499528Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2024-06-12T15:26:07.895Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
},
{
"providerMetadata": {
"dateUpdated": "2024-08-02T03:21:47.537Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_transferred"
],
"url": "https://git.kernel.org/stable/c/75cc31c2e7193b69f5d25650bda5bb42ed92f8a1"
},
{
"tags": [
"x_transferred"
],
"url": "https://git.kernel.org/stable/c/ee4e9c1976147a850f6085a13fca95bcaa00d84c"
},
{
"tags": [
"x_transferred"
],
"url": "https://git.kernel.org/stable/c/e8e8b197317228b5089ed9e7802dadf3ccaa027a"
},
{
"tags": [
"x_transferred"
],
"url": "https://git.kernel.org/stable/c/239c669edb2bffa1aa2612519b1d438ab35d6be6"
},
{
"tags": [
"x_transferred"
],
"url": "https://git.kernel.org/stable/c/fb1088d51bbaa0faec5a55d4f5818a9ab79e24df"
},
{
"tags": [
"x_transferred"
],
"url": "https://git.kernel.org/stable/c/37b6a3ba793bbbae057f5b991970ebcc52cb3db5"
},
{
"tags": [
"x_transferred"
],
"url": "https://git.kernel.org/stable/c/b461910af8ba3bed80f48c2bf852686d05c6fc5c"
},
{
"tags": [
"x_transferred"
],
"url": "https://git.kernel.org/stable/c/722d2c01b8b108f8283d1b7222209d5b2a5aa7bd"
},
{
"tags": [
"x_transferred"
],
"url": "https://git.kernel.org/stable/c/a6b3bfe176e8a5b05ec4447404e412c2a3fc92cc"
},
{
"tags": [
"x_transferred"
],
"url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html"
},
{
"tags": [
"x_transferred"
],
"url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html"
}
],
"title": "CVE Program Container"
},
{
"affected": [
{
"defaultStatus": "unknown",
"product": "SIMATIC S7-1500 TM MFP - GNU/Linux subsystem",
"vendor": "Siemens",
"versions": [
{
"lessThan": "*",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP",
"vendor": "Siemens",
"versions": [
{
"lessThan": "V3.1.5",
"status": "affected",
"version": "V3.1.0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP",
"vendor": "Siemens",
"versions": [
{
"lessThan": "V3.1.5",
"status": "affected",
"version": "V3.1.0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP",
"vendor": "Siemens",
"versions": [
{
"lessThan": "V3.1.5",
"status": "affected",
"version": "V3.1.0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP",
"vendor": "Siemens",
"versions": [
{
"lessThan": "V3.1.5",
"status": "affected",
"version": "V3.1.0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIPLUS S7-1500 CPU 1518-4 PN/DP MFP",
"vendor": "Siemens",
"versions": [
{
"lessThan": "V3.1.5",
"status": "affected",
"version": "V3.1.0",
"versionType": "custom"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-05-12T11:52:08.068Z",
"orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
"shortName": "siemens-SADP"
},
"references": [
{
"url": "https://cert-portal.siemens.com/productcert/html/ssa-398330.html"
},
{
"url": "https://cert-portal.siemens.com/productcert/html/ssa-265688.html"
}
],
"x_adpType": "supplier"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"fs/ext4/resize.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "75cc31c2e7193b69f5d25650bda5bb42ed92f8a1",
"status": "affected",
"version": "01f795f9e0d67adeccc61a8b20c28acb45fa5fd8",
"versionType": "git"
},
{
"lessThan": "ee4e9c1976147a850f6085a13fca95bcaa00d84c",
"status": "affected",
"version": "01f795f9e0d67adeccc61a8b20c28acb45fa5fd8",
"versionType": "git"
},
{
"lessThan": "e8e8b197317228b5089ed9e7802dadf3ccaa027a",
"status": "affected",
"version": "01f795f9e0d67adeccc61a8b20c28acb45fa5fd8",
"versionType": "git"
},
{
"lessThan": "239c669edb2bffa1aa2612519b1d438ab35d6be6",
"status": "affected",
"version": "01f795f9e0d67adeccc61a8b20c28acb45fa5fd8",
"versionType": "git"
},
{
"lessThan": "fb1088d51bbaa0faec5a55d4f5818a9ab79e24df",
"status": "affected",
"version": "01f795f9e0d67adeccc61a8b20c28acb45fa5fd8",
"versionType": "git"
},
{
"lessThan": "37b6a3ba793bbbae057f5b991970ebcc52cb3db5",
"status": "affected",
"version": "01f795f9e0d67adeccc61a8b20c28acb45fa5fd8",
"versionType": "git"
},
{
"lessThan": "b461910af8ba3bed80f48c2bf852686d05c6fc5c",
"status": "affected",
"version": "01f795f9e0d67adeccc61a8b20c28acb45fa5fd8",
"versionType": "git"
},
{
"lessThan": "722d2c01b8b108f8283d1b7222209d5b2a5aa7bd",
"status": "affected",
"version": "01f795f9e0d67adeccc61a8b20c28acb45fa5fd8",
"versionType": "git"
},
{
"lessThan": "a6b3bfe176e8a5b05ec4447404e412c2a3fc92cc",
"status": "affected",
"version": "01f795f9e0d67adeccc61a8b20c28acb45fa5fd8",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"fs/ext4/resize.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "3.7"
},
{
"lessThan": "3.7",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "4.19.*",
"status": "unaffected",
"version": "4.19.312",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"version": "5.4.274",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.215",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.154",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.84",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.24",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.7.*",
"status": "unaffected",
"version": "6.7.12",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.8.*",
"status": "unaffected",
"version": "6.8.3",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.9",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "4.19.312",
"versionStartIncluding": "3.7",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.4.274",
"versionStartIncluding": "3.7",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.10.215",
"versionStartIncluding": "3.7",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.15.154",
"versionStartIncluding": "3.7",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.1.84",
"versionStartIncluding": "3.7",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.6.24",
"versionStartIncluding": "3.7",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.7.12",
"versionStartIncluding": "3.7",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.8.3",
"versionStartIncluding": "3.7",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.9",
"versionStartIncluding": "3.7",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\next4: fix corruption during on-line resize\n\nWe observed a corruption during on-line resize of a file system that is\nlarger than 16 TiB with 4k block size. With having more then 2^32 blocks\nresize_inode is turned off by default by mke2fs. The issue can be\nreproduced on a smaller file system for convenience by explicitly\nturning off resize_inode. An on-line resize across an 8 GiB boundary (the\nsize of a meta block group in this setup) then leads to a corruption:\n\n dev=/dev/\u003csome_dev\u003e # should be \u003e= 16 GiB\n mkdir -p /corruption\n /sbin/mke2fs -t ext4 -b 4096 -O ^resize_inode $dev $((2 * 2**21 - 2**15))\n mount -t ext4 $dev /corruption\n\n dd if=/dev/zero bs=4096 of=/corruption/test count=$((2*2**21 - 4*2**15))\n sha1sum /corruption/test\n # 79d2658b39dcfd77274e435b0934028adafaab11 /corruption/test\n\n /sbin/resize2fs $dev $((2*2**21))\n # drop page cache to force reload the block from disk\n echo 1 \u003e /proc/sys/vm/drop_caches\n\n sha1sum /corruption/test\n # 3c2abc63cbf1a94c9e6977e0fbd72cd832c4d5c3 /corruption/test\n\n2^21 = 2^15*2^6 equals 8 GiB whereof 2^15 is the number of blocks per\nblock group and 2^6 are the number of block groups that make a meta\nblock group.\n\nThe last checksum might be different depending on how the file is laid\nout across the physical blocks. The actual corruption occurs at physical\nblock 63*2^15 = 2064384 which would be the location of the backup of the\nmeta block group\u0027s block descriptor. During the on-line resize the file\nsystem will be converted to meta_bg starting at s_first_meta_bg which is\n2 in the example - meaning all block groups after 16 GiB. However, in\next4_flex_group_add we might add block groups that are not part of the\nfirst meta block group yet. In the reproducer we achieved this by\nsubstracting the size of a whole block group from the point where the\nmeta block group would start. This must be considered when updating the\nbackup block group descriptors to follow the non-meta_bg layout. The fix\nis to add a test whether the group to add is already part of the meta\nblock group or not."
}
],
"providerMetadata": {
"dateUpdated": "2026-05-11T20:11:24.344Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/75cc31c2e7193b69f5d25650bda5bb42ed92f8a1"
},
{
"url": "https://git.kernel.org/stable/c/ee4e9c1976147a850f6085a13fca95bcaa00d84c"
},
{
"url": "https://git.kernel.org/stable/c/e8e8b197317228b5089ed9e7802dadf3ccaa027a"
},
{
"url": "https://git.kernel.org/stable/c/239c669edb2bffa1aa2612519b1d438ab35d6be6"
},
{
"url": "https://git.kernel.org/stable/c/fb1088d51bbaa0faec5a55d4f5818a9ab79e24df"
},
{
"url": "https://git.kernel.org/stable/c/37b6a3ba793bbbae057f5b991970ebcc52cb3db5"
},
{
"url": "https://git.kernel.org/stable/c/b461910af8ba3bed80f48c2bf852686d05c6fc5c"
},
{
"url": "https://git.kernel.org/stable/c/722d2c01b8b108f8283d1b7222209d5b2a5aa7bd"
},
{
"url": "https://git.kernel.org/stable/c/a6b3bfe176e8a5b05ec4447404e412c2a3fc92cc"
}
],
"title": "ext4: fix corruption during on-line resize",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2024-35807",
"datePublished": "2024-05-17T13:23:14.869Z",
"dateReserved": "2024-05-17T12:19:12.342Z",
"dateUpdated": "2026-05-12T11:52:08.068Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
Loading…
Trend slope:
-
(linear fit over daily sighting counts)
Show additional events:
Loading…
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Loading…
Loading…
The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Loading…
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
Loading…
Loading…