tls: Use __sk_dst_get() and dst_dev_rcu() in get_netdev_for_sock().
In the Linux kernel, the following vulnerability has been resolved: tls: Use __sk_dst_get() and dst_dev_rcu() in get_netdev_for_sock(). get_netdev_for_sock() is called during setsockopt(), so not under RCU. Using sk_dst_get(sk)->dev could trigger UAF. Let's use __sk_dst_get() and dst_dev_rcu(). Note that the only ->ndo_sk_get_lower_dev() user is bond_sk_get_lower_dev(), which uses RCU.
CVE-2025-40149
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-2025-40149
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": "e8f69799810c32dd40c6724d829eccc70baad07f",
"lessThan": "2b1bef126bbb8d0da51491357559126d567c1dee",
"versionType": "git"
},
{
"status": "affected",
"version": "e8f69799810c32dd40c6724d829eccc70baad07f",
"lessThan": "e37ca0092ddace60833790b4ad7a390408fb1be9",
"versionType": "git"
},
{
"status": "affected",
"version": "e8f69799810c32dd40c6724d829eccc70baad07f",
"lessThan": "13159c7125636371543a82cb7bbae00ab36730cc",
"versionType": "git"
},
{
"status": "affected",
"version": "e8f69799810c32dd40c6724d829eccc70baad07f",
"lessThan": "f09cd209359a23f88d4f3fa3d2379d057027e53c",
"versionType": "git"
},
{
"status": "affected",
"version": "e8f69799810c32dd40c6724d829eccc70baad07f",
"lessThan": "feb474ddbf26b51f462ae2e60a12013bdcfc5407",
"versionType": "git"
},
{
"status": "affected",
"version": "e8f69799810c32dd40c6724d829eccc70baad07f",
"lessThan": "c65f27b9c3be2269918e1cbad6d8884741f835c5",
"versionType": "git"
}
],
"programFiles": [
"net/tls/tls_device.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "4.18"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "4.18",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.15.199",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.161",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.121",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.66",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.17.3",
"versionType": "semver",
"lessThanOrEqual": "6.17.*"
},
{
"status": "unaffected",
"version": "6.18",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"net/tls/tls_device.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2025-40149
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #30679 · Revision 1
- Added to Heist Feed
- Publisher date