tls: always refresh the queue when reading sock
In the Linux kernel, the following vulnerability has been resolved: tls: always refresh the queue when reading sock After recent changes in net-next TCP compacts skbs much more aggressively. This unearthed a bug in TLS where we may try to operate on an old skb when checking if all skbs in the queue have matching decrypt state and geometry. BUG: KASAN: slab-use-after-free in tls_strp_check_rcv+0x898/0x9a0 [tls] (net/tls/tls_strp.c:436 net/tls/tls_strp.c:530 net/tls/tls_strp.c:544) Read of size 4 at addr ffff888013085750 by task tls/13529 CPU: 2 UID: 0 PID: 13529 Comm: tls Not tainted 6.16.0-rc5-virtme Call Trace: kasan_report+0xca/0x100 tls_strp_check_rcv+0x898/0x9a0 [tls] tls_rx_rec_wait+0x2c9/0x8d0 [tls] tls_sw_recvmsg+0x40f/0x1aa0 [tls] inet_recvmsg+0x1c3/0x1f0 Always reload the queue, fast path is to have the record in the queue when we wake, anyway (IOW the path going down "if !strp->stm.full_len").
CVE-2025-38471
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-2025-38471
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": "0d87bbd39d7fd1135ab9eca672d760470f6508e8",
"lessThan": "730fed2ff5e259495712518e18d9f521f61972bb",
"versionType": "git"
},
{
"status": "affected",
"version": "0d87bbd39d7fd1135ab9eca672d760470f6508e8",
"lessThan": "1f3a429c21e0e43e8b8c55d30701e91411a4df02",
"versionType": "git"
},
{
"status": "affected",
"version": "0d87bbd39d7fd1135ab9eca672d760470f6508e8",
"lessThan": "cdb767915fc9a15d88d19d52a1455f1dc3e5ddc8",
"versionType": "git"
},
{
"status": "affected",
"version": "0d87bbd39d7fd1135ab9eca672d760470f6508e8",
"lessThan": "c76f6f437c46b2390888e0e1dc7aafafa9f4e0c6",
"versionType": "git"
},
{
"status": "affected",
"version": "0d87bbd39d7fd1135ab9eca672d760470f6508e8",
"lessThan": "4ab26bce3969f8fd925fe6f6f551e4d1a508c68b",
"versionType": "git"
},
{
"status": "affected",
"version": "2277d7cbdf47531b2c3cd01ba15255fa955aab35",
"versionType": "git"
},
{
"status": "affected",
"version": "6.0.6",
"lessThan": "6.1",
"versionType": "semver"
}
],
"programFiles": [
"net/tls/tls_strp.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.1"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.1",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.1.147",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.100",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.40",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.15.8",
"versionType": "semver",
"lessThanOrEqual": "6.15.*"
},
{
"status": "unaffected",
"version": "6.16",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"net/tls/tls_strp.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2025-38471
Source reference:
/cveMetadata/cveId
Publisher severity
critical
Source reference: /containers/cna/metrics
- Event
- #27040 · Revision 1
- Added to Heist Feed
- Publisher date