linux — security advisory
In the Linux kernel, the following vulnerability has been resolved: scsi: target: Fix WRITE_SAME No Data Buffer crash In newer version of the SBC specs, we have a NDOB bit that indicates there is no data buffer that gets written out. If this bit is set using commands like "sg_write_same --ndob" we will crash in target_core_iblock/file's execute_write_same handlers when we go to access the se_cmd->t_data_sg because its NULL. This patch adds a check for the NDOB bit in the common WRITE SAME code because we don't support it. And, it adds a check for zero SG elements in each handler in case the initiator tries to send a normal WRITE SAME with no data buffer.
- Products
- linux
- Affected versions
- Not specified
- Fixed versions
- 5.19.6-1
- CVEs
- CVE-2022-21546
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 30 Oct 2026, 14:36 UTC · Revision 1
Source evidence
In the Linux kernel, the following vulnerability has been resolved: scsi: target: Fix WRITE_SAME No Data Buffer crash In newer version of the SBC specs, we have a NDOB bit that indicates there is no data buffer that gets written out. If this bit is set using commands like "sg_write_same --ndob" we will crash in target_core_iblock/file's execute_write_same handlers when we go to access the se_cmd->t_data_sg because its NULL. This patch adds a check for the NDOB bit in the common WRITE SAME code because we don't support it. And, it adds a check for zero SG elements in each handler in case the initiator tries to send a normal WRITE SAME with no data buffer.
osv:DEBIAN-CVE-2022-21546
linux
Fixed versions: 5.19.6-1
linux
Fixed versions: 5.19.6-1
linux
Fixed versions: 5.19.6-1
Complete source record
{
"id": "a403c65d0ad521393493f194e436d3f348cef582f7109bda4d978b8911080f69",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2022-21546",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2022-21546",
"summary": "In the Linux kernel, the following vulnerability has been resolved: scsi: target: Fix WRITE_SAME No Data Buffer crash In newer version of the SBC specs, we have a NDOB bit that indicates there is no data buffer that gets written out. If this bit is set using commands like \"sg_write_same --ndob\" we will crash in target_core_iblock/file's execute_write_same handlers when we go to access the se_cmd->t_data_sg because its NULL. This patch adds a check for the NDOB bit in the common WRITE SAME code because we don't support it. And, it adds a check for zero SG elements in each handler in case the initiator tries to send a normal WRITE SAME with no data buffer.",
"evidence": "osv:DEBIAN-CVE-2022-21546",
"products": [
{
"name": {
"value": "linux",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
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"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
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},
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{
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],
"severity": "high",
"structured": {
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"aliases": [
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"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
}
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"affected": [
{
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"ecosystem": "Debian:12"
},
"database_specific": {
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},
"ecosystem_specific": {
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}
},
{
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"package": {
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"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2022-21546.json"
},
"ecosystem_specific": {
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},
{
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],
"package": {
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"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2022-21546.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-15T08:01:01.269432517Z",
"provider": "osv",
"upstream": [
"CVE-2022-21546"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2022-21546"
]
},
"related_cves": [
{
"value": "CVE-2022-21546",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 322757,
"published_at": "2025-05-02T22:15:15.29+00:00"
}