SUNRPC: Fix null pointer dereference in svc_rqst_free()
In the Linux kernel, the following vulnerability has been resolved: SUNRPC: Fix null pointer dereference in svc_rqst_free() When alloc_pages_node() returns null in svc_rqst_alloc(), the null rq_scratch_page pointer will be dereferenced when calling put_page() in svc_rqst_free(). Fix it by adding a null check. Addresses-Coverity: ("Dereference after null check")
CVE-2021-47002
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-2021-47002
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": "79e4e0d489c8e72b9efa388e504a036eec1550c6",
"lessThan": "3de81c1e84bf84803308da3272a829a7655c5336",
"versionType": "git"
},
{
"status": "affected",
"version": "5191955d6fc65e6d4efe8f4f10a6028298f57281",
"lessThan": "1e10f58f1c9a6b667b045513c7a4e6111c24fe7c",
"versionType": "git"
},
{
"status": "affected",
"version": "5191955d6fc65e6d4efe8f4f10a6028298f57281",
"lessThan": "c664aaec9aee544538a78ba4893a44bc73a6d742",
"versionType": "git"
},
{
"status": "affected",
"version": "5191955d6fc65e6d4efe8f4f10a6028298f57281",
"lessThan": "b9f83ffaa0c096b4c832a43964fe6bff3acffe10",
"versionType": "git"
},
{
"status": "affected",
"version": "5.10.220",
"lessThan": "5.10.221",
"versionType": "semver"
}
],
"programFiles": [
"net/sunrpc/svc.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "5.11"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "5.11",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.10.221",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.11.22",
"versionType": "semver",
"lessThanOrEqual": "5.11.*"
},
{
"status": "unaffected",
"version": "5.12.5",
"versionType": "semver",
"lessThanOrEqual": "5.12.*"
},
{
"status": "unaffected",
"version": "5.13",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"net/sunrpc/svc.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2021-47002
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #21792 · Revision 1
- Added to Heist Feed
- Publisher date