mailbox: add sanity check for channel array
In the Linux kernel, the following vulnerability has been resolved: mailbox: add sanity check for channel array Fail gracefully if there is no channel array attached to the mailbox controller. Otherwise the later dereference will cause an OOPS which might not be seen because mailbox controllers might instantiate very early. Remove the comment explaining the obvious while here.
CVE-2026-53295
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-2026-53295
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": "2b6d83e2b8b7de82331a6a1dcd64b51020a6031c",
"lessThan": "5cc3300fab262b26c28bc2fc06df693410c3840b",
"versionType": "git"
},
{
"status": "affected",
"version": "2b6d83e2b8b7de82331a6a1dcd64b51020a6031c",
"lessThan": "0f11444271110d9b5bc6316a153c6431abda899c",
"versionType": "git"
},
{
"status": "affected",
"version": "2b6d83e2b8b7de82331a6a1dcd64b51020a6031c",
"lessThan": "d44872a569b8fbacde457ff2587a775e5004bb79",
"versionType": "git"
},
{
"status": "affected",
"version": "2b6d83e2b8b7de82331a6a1dcd64b51020a6031c",
"lessThan": "14aed0d4e58389cc6a88acf8610b12d3e476272b",
"versionType": "git"
},
{
"status": "affected",
"version": "2b6d83e2b8b7de82331a6a1dcd64b51020a6031c",
"lessThan": "6362c4a7d7e21e68cd9aa04df7cde16befba3a4b",
"versionType": "git"
},
{
"status": "affected",
"version": "2b6d83e2b8b7de82331a6a1dcd64b51020a6031c",
"lessThan": "9dd7489943324298bb0f385495795a82f1dd6507",
"versionType": "git"
},
{
"status": "affected",
"version": "2b6d83e2b8b7de82331a6a1dcd64b51020a6031c",
"lessThan": "37792091ab28ba030fd8d61184c47d4d51294170",
"versionType": "git"
},
{
"status": "affected",
"version": "2b6d83e2b8b7de82331a6a1dcd64b51020a6031c",
"lessThan": "c1aad75595fb67edc7fda8af249d3b886efa1be9",
"versionType": "git"
}
],
"programFiles": [
"drivers/mailbox/mailbox.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "3.18"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "3.18",
"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": "6.6.141",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.91",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.33",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.0.10",
"versionType": "semver",
"lessThanOrEqual": "7.0.*"
},
{
"status": "unaffected",
"version": "7.1",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/mailbox/mailbox.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-53295
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #28448 · Revision 1
- Added to Heist Feed
- Publisher date