CVE-2024-49994 (GCVE-0-2024-49994)
Vulnerability from cvelistv5 – Published: 2024-10-21 18:02 – Updated: 2026-09-08 08:39
VLAI
EPSS
VEX
Title
block: fix integer overflow in BLKSECDISCARD
Summary
In the Linux kernel, the following vulnerability has been resolved:
block: fix integer overflow in BLKSECDISCARD
I independently rediscovered
commit 22d24a544b0d49bbcbd61c8c0eaf77d3c9297155
block: fix overflow in blk_ioctl_discard()
but for secure erase.
Same problem:
uint64_t r[2] = {512, 18446744073709551104ULL};
ioctl(fd, BLKSECDISCARD, r);
will enter near infinite loop inside blkdev_issue_secure_erase():
a.out: attempt to access beyond end of device
loop0: rw=5, sector=3399043073, nr_sectors = 1024 limit=2048
bio_check_eod: 3286214 callbacks suppressed
Severity
No CVSS data available.
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-10-22 13:30 UTC
Assigner
References
7 references
Impacted products
5 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
44abff2c0b970ae3d310b97617525dc01f248d7c , < 8476f8428e8b48fd7a0e4258fa2a96a8f4468239
(git)
Affected: 44abff2c0b970ae3d310b97617525dc01f248d7c , < a99bacb35c1416355eef957560e8fcac3a665549 (git) Affected: 44abff2c0b970ae3d310b97617525dc01f248d7c , < 0842ddd83939eb4db940b9af7d39e79722bc41aa (git) Affected: 44abff2c0b970ae3d310b97617525dc01f248d7c , < 6c9915fa9410cbb9bd75ee283c03120046c56d3d (git) Affected: 44abff2c0b970ae3d310b97617525dc01f248d7c , < 697ba0b6ec4ae04afb67d3911799b5e2043b4455 (git) |
guessed | |
| Linux | Linux |
Affected:
5.19
Unaffected: 0 , < 5.19 (semver) Unaffected: 6.1.128 , ≤ 6.1.* (semver) Unaffected: 6.6.75 , ≤ 6.6.* (semver) Unaffected: 6.10.14 , ≤ 6.10.* (semver) Unaffected: 6.11.3 , ≤ 6.11.* (semver) Unaffected: 6.12 , ≤ * (original_commit_for_fix) |
guessed | |
| Siemens | SIMATIC S7-1500 CPU 1518-4 PN/DP MFP |
Affected:
V3.1.6 , < *
(custom)
|
guessed | |
| Siemens | SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP |
Affected:
V3.1.6 , < *
(custom)
|
guessed | |
| Siemens | SIPLUS S7-1500 CPU 1518-4 PN/DP MFP |
Affected:
V3.1.6 , < *
(custom)
|
guessed |
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],
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}
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],
"providerMetadata": {
"dateUpdated": "2026-09-08T08:39:17.431Z",
"orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
"shortName": "siemens-SADP"
},
"references": [
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}
],
"x_adpType": "supplier"
},
{
"metrics": [
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"other": {
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"options": [
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},
{
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},
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}
],
"role": "CISA Coordinator",
"timestamp": "2024-10-22T13:30:51.719818Z",
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"providerMetadata": {
"dateUpdated": "2024-10-22T13:30:54.920Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
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"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
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],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "8476f8428e8b48fd7a0e4258fa2a96a8f4468239",
"status": "affected",
"version": "44abff2c0b970ae3d310b97617525dc01f248d7c",
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{
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"versions": [
{
"status": "affected",
"version": "5.19"
},
{
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"status": "unaffected",
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"versionType": "semver"
},
{
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},
{
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},
{
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"version": "6.10.14",
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},
{
"lessThanOrEqual": "6.11.*",
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"version": "6.11.3",
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},
{
"lessThanOrEqual": "*",
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"cpeApplicability": [
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},
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},
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"vulnerable": true
},
{
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"versionEndExcluding": "6.11.3",
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"vulnerable": true
},
{
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],
"descriptions": [
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nblock: fix integer overflow in BLKSECDISCARD\n\nI independently rediscovered\n\n\tcommit 22d24a544b0d49bbcbd61c8c0eaf77d3c9297155\n\tblock: fix overflow in blk_ioctl_discard()\n\nbut for secure erase.\n\nSame problem:\n\n\tuint64_t r[2] = {512, 18446744073709551104ULL};\n\tioctl(fd, BLKSECDISCARD, r);\n\nwill enter near infinite loop inside blkdev_issue_secure_erase():\n\n\ta.out: attempt to access beyond end of device\n\tloop0: rw=5, sector=3399043073, nr_sectors = 1024 limit=2048\n\tbio_check_eod: 3286214 callbacks suppressed"
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},
{
"url": "https://git.kernel.org/stable/c/697ba0b6ec4ae04afb67d3911799b5e2043b4455"
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],
"title": "block: fix integer overflow in BLKSECDISCARD",
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"cveId": "CVE-2024-49994",
"datePublished": "2024-10-21T18:02:35.722Z",
"dateReserved": "2024-10-21T12:17:06.055Z",
"dateUpdated": "2026-09-08T08:39:17.431Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
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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.
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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.
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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.
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