UnratedFix available
scsi: target: core: Fix integer overflow in UNMAP bounds check
Type: advisorySources: OSV
In the Linux kernel, the following vulnerability has been resolved: scsi: target: core: Fix integer overflow in UNMAP bounds check sbc_execute_unmap() checks LBA + range does not exceed the device capacity, but does not guard against LBA + range wrapping around on 64-bit overflow. Add an overflow check matching the pattern already used for WRITE_SAME in the same file.
- Products
- Kernel
- Affected versions
- Not specified
- Fixed versions
- 5.10.258, 5.15.209, 6.1.175, 6.12.91, 6.18.33, 6.6.141, 7.0.10
- CVEs
- CVE-2026-53021
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 3 Nov 2026, 07:02 UTC · Revision 1
Source evidence
scsi: target: core: Fix integer overflow in UNMAP bounds check
core-osv · Original sourcePublished 24 Jun 2026, 16:29 UTC
In the Linux kernel, the following vulnerability has been resolved: scsi: target: core: Fix integer overflow in UNMAP bounds check sbc_execute_unmap() checks LBA + range does not exceed the device capacity, but does not guard against LBA + range wrapping around on 64-bit overflow. Add an overflow check matching the pattern already used for WRITE_SAME in the same file.
osv:CVE-2026-53021
Kernel
Fixed versions: 5.10.258, 5.15.209, 6.1.175, 6.6.141, 6.12.91, 6.18.33, 7.0.10
Complete source record
{
"id": "0c207944072f6c6ad8f832a4329bd04f06da08b99d9f991c9e198559abac7d12",
"url": "https://osv.dev/vulnerability/CVE-2026-53021",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "scsi: target: core: Fix integer overflow in UNMAP bounds check",
"summary": "In the Linux kernel, the following vulnerability has been resolved: scsi: target: core: Fix integer overflow in UNMAP bounds check sbc_execute_unmap() checks LBA + range does not exceed the device capacity, but does not guard against LBA + range wrapping around on 64-bit overflow. Add an overflow check matching the pattern already used for WRITE_SAME in the same file.",
"evidence": "osv:CVE-2026-53021",
"products": [
{
"name": {
"value": "Kernel",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "5.10.258",
"evidence": "/affected/1/ranges"
},
{
"value": "5.15.209",
"evidence": "/affected/1/ranges"
},
{
"value": "6.1.175",
"evidence": "/affected/1/ranges"
},
{
"value": "6.6.141",
"evidence": "/affected/1/ranges"
},
{
"value": "6.12.91",
"evidence": "/affected/1/ranges"
},
{
"value": "6.18.33",
"evidence": "/affected/1/ranges"
},
{
"value": "7.0.10",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
}
],
"severity": "unknown",
"structured": {
"id": "CVE-2026-53021",
"aliases": [
"CVE-2026-53021"
],
"affected": [
{
"ranges": [
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"type": "GIT",
"events": [
{
"introduced": "86d7182985d25900929adce14fffd729cc8c6fb8"
},
{
"fixed": "c08ab702c4699c6efb9d60bdb15b73e7a627ee7e"
},
{
"fixed": "2e1ed9a7b6ea5bfefb5d80a02b1c71c7dee1f0dd"
},
{
"fixed": "5efc3ef4758f8d98c257419fa21daca3227de61a"
},
{
"fixed": "d7aef29573c7c5cdb2dfad939253287a6329c2a4"
},
{
"fixed": "3facdecc3fcf115cc4f9b3d8f118d6705e2456a8"
},
{
"fixed": "51075df70c46e60a9773f2dcd28299e40dac36fb"
},
{
"fixed": "02115986d027ade793e7f6be87e91d6a796d0aa3"
},
{
"fixed": "2bf2d65f76697820dbc4227d13866293576dd90a"
}
]
}
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-53021.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "3.10.0"
},
{
"fixed": "5.10.258"
}
]
},
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "5.11.0"
},
{
"fixed": "5.15.209"
}
]
},
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "5.16.0"
},
{
"fixed": "6.1.175"
}
]
},
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "6.2.0"
},
{
"fixed": "6.6.141"
}
]
},
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "6.7.0"
},
{
"fixed": "6.12.91"
}
]
},
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "6.13.0"
},
{
"fixed": "6.18.33"
}
]
},
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "6.19.0"
},
{
"fixed": "7.0.10"
}
]
}
],
"package": {
"name": "Kernel",
"ecosystem": "Linux"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-53021.json"
}
}
],
"modified": "2026-10-28T02:30:26.878362754Z",
"provider": "osv",
"references": [
"https://git.kernel.org/stable/c/02115986d027ade793e7f6be87e91d6a796d0aa3",
"https://git.kernel.org/stable/c/2bf2d65f76697820dbc4227d13866293576dd90a",
"https://git.kernel.org/stable/c/2e1ed9a7b6ea5bfefb5d80a02b1c71c7dee1f0dd",
"https://git.kernel.org/stable/c/3facdecc3fcf115cc4f9b3d8f118d6705e2456a8",
"https://git.kernel.org/stable/c/51075df70c46e60a9773f2dcd28299e40dac36fb",
"https://git.kernel.org/stable/c/5efc3ef4758f8d98c257419fa21daca3227de61a",
"https://git.kernel.org/stable/c/c08ab702c4699c6efb9d60bdb15b73e7a627ee7e",
"https://git.kernel.org/stable/c/d7aef29573c7c5cdb2dfad939253287a6329c2a4",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53021.json",
"https://nvd.nist.gov/vuln/detail/CVE-2026-53021",
"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
],
"provider_metadata": {
"cna_assigner": "Linux",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53021.json"
}
},
"related_cves": [
{
"value": "CVE-2026-53021",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 493205,
"published_at": "2026-06-24T16:29:30.671+00:00"
}