scsi: sd: Fix special_vec mempool leak when scsi_alloc_sgtables() fails
In the Linux kernel, the following vulnerability has been resolved: scsi: sd: Fix special_vec mempool leak when scsi_alloc_sgtables() fails sd_set_special_bvec() allocates a special payload page for UNMAP and WRITE SAME commands. If scsi_alloc_sgtables() fails afterward in sd_setup_unmap_cmnd() or sd_setup_write_same{10,16}_cmnd(), the SCSI midlayer does not call uninit_command() because RQF_DONTPREP is not set yet, leaking the page. Call sd_uninit_command() on error, and clear RQF_SPECIAL_PAYLOAD after freeing the page.
CVE-2026-90267
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-2026-90267
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": "81d926e8b5520e38f1f72dd7bb7cfc81c1a69d87",
"lessThan": "710a2448a06a8215ba8acb4a2791954800f7db0a",
"versionType": "git"
},
{
"status": "affected",
"version": "81d926e8b5520e38f1f72dd7bb7cfc81c1a69d87",
"lessThan": "744a65e113094756e6c1cfba9ff1bf4247cb68d4",
"versionType": "git"
},
{
"status": "affected",
"version": "81d926e8b5520e38f1f72dd7bb7cfc81c1a69d87",
"lessThan": "e90f746f4ca3896ca560e820b7b6b0a467026938",
"versionType": "git"
},
{
"status": "affected",
"version": "81d926e8b5520e38f1f72dd7bb7cfc81c1a69d87",
"lessThan": "5d7d1b8b525e5eff33a01d07dfcf7bdd3b6d790d",
"versionType": "git"
},
{
"status": "affected",
"version": "81d926e8b5520e38f1f72dd7bb7cfc81c1a69d87",
"lessThan": "bb31844d88b77138b67aa20c3600203baff40140",
"versionType": "git"
}
],
"programFiles": [
"drivers/scsi/sd.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "4.12"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "4.12",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.6.160",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.114",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.57",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.6",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/scsi/sd.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-90267
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #48651 · Revision 1
- Added to Heist Feed
- Publisher date