tls: wait for pending async decryptions if tls_strp_msg_hold fails
In the Linux kernel, the following vulnerability has been resolved: tls: wait for pending async decryptions if tls_strp_msg_hold fails Async decryption calls tls_strp_msg_hold to create a clone of the input skb to hold references to the memory it uses. If we fail to allocate that clone, proceeding with async decryption can lead to various issues (UAF on the skb, writing into userspace memory after the recv() call has returned). In this case, wait for all pending decryption requests.
CVE-2025-40176
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-2025-40176
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": "84c61fe1a75b4255df1e1e7c054c9e6d048da417",
"lessThan": "9f83fd0c179e0f458e824e417f9d5ad53443f685",
"versionType": "git"
},
{
"status": "affected",
"version": "84c61fe1a75b4255df1e1e7c054c9e6d048da417",
"lessThan": "c61d4368197d65c4809d9271f3b85325a600586a",
"versionType": "git"
},
{
"status": "affected",
"version": "84c61fe1a75b4255df1e1e7c054c9e6d048da417",
"lessThan": "39dec4ea3daf77f684308576baf483b55ca7f160",
"versionType": "git"
},
{
"status": "affected",
"version": "84c61fe1a75b4255df1e1e7c054c9e6d048da417",
"lessThan": "4fc109d0ab196bd943b7451276690fb6bb48c2e0",
"versionType": "git"
},
{
"status": "affected",
"version": "84c61fe1a75b4255df1e1e7c054c9e6d048da417",
"lessThan": "b8a6ff84abbcbbc445463de58704686011edc8e1",
"versionType": "git"
}
],
"programFiles": [
"net/tls/tls_sw.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.0"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.0",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.1.158",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.114",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.55",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.17.5",
"versionType": "semver",
"lessThanOrEqual": "6.17.*"
},
{
"status": "unaffected",
"version": "6.18",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"net/tls/tls_sw.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2025-40176
Source reference:
/cveMetadata/cveId
Publisher severity
critical
Source reference: /containers/cna/metrics
- Event
- #30687 · Revision 1
- Added to Heist Feed
- Publisher date