scsi: sg: Allow waiting for commands to complete on removed device
In the Linux kernel, the following vulnerability has been resolved: scsi: sg: Allow waiting for commands to complete on removed device When a SCSI device is removed while in active use, currently sg will immediately return -ENODEV on any attempt to wait for active commands that were sent before the removal. This is problematic for commands that use SG_FLAG_DIRECT_IO since the data buffer may still be in use by the kernel when userspace frees or reuses it after getting ENODEV, leading to corrupted userspace memory (in the case of READ-type commands) or corrupted data being sent to the device (in the case of WRITE-type commands). This has been seen in practice when logging out of a iscsi_tcp session, where the iSCSI driver may still be processing commands after the device has been marked for removal. Change the policy to allow userspace to wait for active sg commands even when the device is being removed. Return -ENODEV only when there are no more responses to read.
CVE-2022-50215
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2022-50215
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "c6517b7942fad663cc1cf3235cbe4207cf769332",
"lessThan": "bbc118acf7baf9e93c5e1314d14f481301af4d0f",
"versionType": "git"
},
{
"status": "affected",
"version": "c6517b7942fad663cc1cf3235cbe4207cf769332",
"lessThan": "f5e61d9b4a699dd16f32d5f39eb1cf98d84c92ed",
"versionType": "git"
},
{
"status": "affected",
"version": "c6517b7942fad663cc1cf3235cbe4207cf769332",
"lessThan": "ed9afd967cbfe7da2dc0d5e52c62a778dfe9f16b",
"versionType": "git"
},
{
"status": "affected",
"version": "c6517b7942fad663cc1cf3235cbe4207cf769332",
"lessThan": "f135c65085eed869d10e4e7923ce1015288618da",
"versionType": "git"
},
{
"status": "affected",
"version": "c6517b7942fad663cc1cf3235cbe4207cf769332",
"lessThan": "408bfa1489a3cfe7150b81ab0b0df99b23dd5411",
"versionType": "git"
},
{
"status": "affected",
"version": "c6517b7942fad663cc1cf3235cbe4207cf769332",
"lessThan": "8c004b7dbb340c1e5889f5fb9e5baa6f6e5303e8",
"versionType": "git"
},
{
"status": "affected",
"version": "c6517b7942fad663cc1cf3235cbe4207cf769332",
"lessThan": "35e60ec39e862159cb92923eefd5230d4a873cb9",
"versionType": "git"
},
{
"status": "affected",
"version": "c6517b7942fad663cc1cf3235cbe4207cf769332",
"lessThan": "03d8241112d5e3cccce1a01274a221099f07d2e1",
"versionType": "git"
},
{
"status": "affected",
"version": "c6517b7942fad663cc1cf3235cbe4207cf769332",
"lessThan": "3455607fd7be10b449f5135c00dc306b85dc0d21",
"versionType": "git"
},
{
"status": "affected",
"version": "a0fe972f78eaaf352d593f9ed9079de590ceb286",
"versionType": "git"
},
{
"status": "affected",
"version": "b21c6d2897cd455fa396f4041a0c8165784e949f",
"versionType": "git"
},
{
"status": "affected",
"version": "2.6.28.10",
"lessThan": "2.6.29",
"versionType": "semver"
},
{
"status": "affected",
"version": "2.6.29.2",
"lessThan": "2.6.30",
"versionType": "semver"
}
],
"programFiles": [
"drivers/scsi/sg.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "2.6.30"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "2.6.30",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "4.9.326",
"versionType": "semver",
"lessThanOrEqual": "4.9.*"
},
{
"status": "unaffected",
"version": "4.14.291",
"versionType": "semver",
"lessThanOrEqual": "4.14.*"
},
{
"status": "unaffected",
"version": "4.19.256",
"versionType": "semver",
"lessThanOrEqual": "4.19.*"
},
{
"status": "unaffected",
"version": "5.4.211",
"versionType": "semver",
"lessThanOrEqual": "5.4.*"
},
{
"status": "unaffected",
"version": "5.10.137",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.61",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "5.18.18",
"versionType": "semver",
"lessThanOrEqual": "5.18.*"
},
{
"status": "unaffected",
"version": "5.19.2",
"versionType": "semver",
"lessThanOrEqual": "5.19.*"
},
{
"status": "unaffected",
"version": "6.0",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/scsi/sg.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2022-50215
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #30205 · Revision 1
- Added to Heist Feed
- Publisher date