Answer in brief
CVE-2026-46137 records a Critical severity (CVSS 9.8) vulnerability in mptcp: pm: ADD_ADDR rtx: fix potential data-race. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystem (generic). 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 TM MFP - GNU/Linux subsystem (generic). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=00cfd77b9063dcdf3628a7087faba60de85a9cc8 <d9b272a85fe6b8f993e37915311e4038c814a533 || >=00cfd77b9063dcdf3628a7087faba60de85a9cc8 <23079e0b7742ec114d3507c3e3aad01b7b69e4af || >=00cfd77b9063dcdf3628a7087faba60de85a9cc8 <b35605e1f1e877038c8c9d499babbc891cdd234f || >=00cfd77b9063dcdf3628a7087faba60de85a9cc8 <013dcdc1961543b9a3433466bc8c79a2f4ca75b5 || >=00cfd77b9063dcdf3628a7087faba60de85a9cc8 <6e4710d7d8782cb61af29a7e7111ddfc38b9e1a3 || >=00cfd77b9063dcdf3628a7087faba60de85a9cc8 <2ad56e434199ca24a812bb353667aa1c3860f513 || >=00cfd77b9063dcdf3628a7087faba60de85a9cc8 <cc3c0399361efaaf7ae64262eb3f70829b1189c6 || >=00cfd77b9063dcdf3628a7087faba60de85a9cc8 <5cd6e0ad79d2615264f63929f8b457ad97ae550d | d9b272a85fe6b8f993e37915311e4038c814a533, 23079e0b7742ec114d3507c3e3aad01b7b69e4af, b35605e1f1e877038c8c9d499babbc891cdd234f, 013dcdc1961543b9a3433466bc8c79a2f4ca75b5, 6e4710d7d8782cb61af29a7e7111ddfc38b9e1a3, 2ad56e434199ca24a812bb353667aa1c3860f513, cc3c0399361efaaf7ae64262eb3f70829b1189c6, 5cd6e0ad79d2615264f63929f8b457ad97ae550d |
| Linux/Linuxgeneric | 5.10 | Not reported |
| Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystemgeneric | >=0 <* | * |
Published upstream
May 28, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 19, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 19, 2026
In the Linux kernel, the following vulnerability has been resolved: mptcp: pm: ADD_ADDR rtx: fix potential data-race This mptcp_pm_add_timer() helper is executed as a timer callback in softirq context. To avoid any data races, the socket lock needs to be held with bh_lock_sock(). If the socket is in use, retry again soon after, similar to what is done with the keepalive timer.
Quoted source text, attributed separately from HOL analysis.