Critical
crypto: pcrypt - Fix handling of MAY_BACKLOG requests
In the Linux kernel, the following vulnerability has been resolved: crypto: pcrypt - Fix handling of MAY_BACKLOG requests MAY_BACKLOG requests can return EBUSY. Handle them by checking for that value and filtering out EINPROGRESS notifications.
Announced Group revision 1
Original source ↗CVE-2026-43493
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-2026-43493
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": "5a1436beec5744029f3ac90b6fe71a698dcd6155",
"lessThan": "ae7e95638d956d556d74b9abb9e780d3bd3dcd9e",
"versionType": "git"
},
{
"status": "affected",
"version": "5a1436beec5744029f3ac90b6fe71a698dcd6155",
"lessThan": "1d7f07df450bac3301938fbc4251f2611be4084e",
"versionType": "git"
},
{
"status": "affected",
"version": "5a1436beec5744029f3ac90b6fe71a698dcd6155",
"lessThan": "76641449b28979ebd6c02e9598367e119e385236",
"versionType": "git"
},
{
"status": "affected",
"version": "5a1436beec5744029f3ac90b6fe71a698dcd6155",
"lessThan": "9f1cbca178c03188e201ed175251372149bb25f2",
"versionType": "git"
},
{
"status": "affected",
"version": "5a1436beec5744029f3ac90b6fe71a698dcd6155",
"lessThan": "eb34e243df57e32f4c08fa191f3602ea19076276",
"versionType": "git"
},
{
"status": "affected",
"version": "5a1436beec5744029f3ac90b6fe71a698dcd6155",
"lessThan": "77d55bc8675ee851ed639dc9be77325a8024cf67",
"versionType": "git"
},
{
"status": "affected",
"version": "5a1436beec5744029f3ac90b6fe71a698dcd6155",
"lessThan": "46271895ddfb1ba41f89f7e0dffbe9c2bcf7380a",
"versionType": "git"
},
{
"status": "affected",
"version": "5a1436beec5744029f3ac90b6fe71a698dcd6155",
"lessThan": "915b692e6cb723aac658c25eb82c58fd81235110",
"versionType": "git"
}
],
"programFiles": [
"crypto/pcrypt.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "2.6.34"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "2.6.34",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.10.258",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.209",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.175",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.140",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.86",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.27",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.0.4",
"versionType": "semver",
"lessThanOrEqual": "7.0.*"
},
{
"status": "unaffected",
"version": "7.1",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"crypto/pcrypt.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-43493
Source reference:
/cveMetadata/cveId
Publisher severity
critical
Source reference: /containers/cna/metrics
- Event
- #40083 · Revision 1
- Added to Heist Feed
- Publisher date