Unrated
blk-mq: fix NULL dereference on q->elevator in blk_mq_elv_switch_none
In the Linux kernel, the following vulnerability has been resolved: blk-mq: fix NULL dereference on q->elevator in blk_mq_elv_switch_none After grabbing q->sysfs_lock, q->elevator may become NULL because of elevator switch. Fix the NULL dereference on q->elevator by checking it with lock.
Announced Group revision 1
Original source ↗CVE-2023-53292
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-2023-53292
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": "5fd7a84a09e640016fe106dd3e992f5210e23dc7",
"lessThan": "988ddb77218d3975dd13dee7bb0e1fae098a9fdb",
"versionType": "git"
},
{
"status": "affected",
"version": "5fd7a84a09e640016fe106dd3e992f5210e23dc7",
"lessThan": "3e977386521b71471e66ec2ba82efdfcc456adf2",
"versionType": "git"
},
{
"status": "affected",
"version": "5fd7a84a09e640016fe106dd3e992f5210e23dc7",
"lessThan": "245165658e1c9f95c0fecfe02b9b1ebd30a1198a",
"versionType": "git"
}
],
"programFiles": [
"block/blk-mq.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "5.19"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "5.19",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.1.175",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.4.7",
"versionType": "semver",
"lessThanOrEqual": "6.4.*"
},
{
"status": "unaffected",
"version": "6.5",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"block/blk-mq.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2023-53292
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #26386 · Revision 1
- Added to Heist Feed
- Publisher date