Answer in brief
CVE-2025-38471 records a Critical severity (CVSS 9.8) vulnerability in tls: always refresh the queue when reading sock. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (generic), Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 9.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (generic), Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=0d87bbd39d7fd1135ab9eca672d760470f6508e8 <730fed2ff5e259495712518e18d9f521f61972bb || >=0d87bbd39d7fd1135ab9eca672d760470f6508e8 <1f3a429c21e0e43e8b8c55d30701e91411a4df02 || >=0d87bbd39d7fd1135ab9eca672d760470f6508e8 <cdb767915fc9a15d88d19d52a1455f1dc3e5ddc8 || >=0d87bbd39d7fd1135ab9eca672d760470f6508e8 <c76f6f437c46b2390888e0e1dc7aafafa9f4e0c6 || >=0d87bbd39d7fd1135ab9eca672d760470f6508e8 <4ab26bce3969f8fd925fe6f6f551e4d1a508c68b || 2277d7cbdf47531b2c3cd01ba15255fa955aab35 || >=6.0.6 <6.1 | 730fed2ff5e259495712518e18d9f521f61972bb, 1f3a429c21e0e43e8b8c55d30701e91411a4df02, cdb767915fc9a15d88d19d52a1455f1dc3e5ddc8, c76f6f437c46b2390888e0e1dc7aafafa9f4e0c6, 4ab26bce3969f8fd925fe6f6f551e4d1a508c68b, 6.1 |
| Linux/Linuxgeneric | 6.1 | Not reported |
| Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFPgeneric | >=V3.1.5 <* | * |
| Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFPgeneric | >=V3.1.5 <* | * |
| Siemens/SIPLUS S7-1500 CPU 1518-4 PN/DP MFPgeneric | >=V3.1.5 <* | * |
Published upstream
Jul 28, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
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").
Quoted source text, attributed separately from HOL analysis.