by Kastro
Paper/Archive/CVE-2026-46137

CVE-2026-46137

Linux Linux — mptcp: pm: ADD_ADDR rtx: fix potential data-race

EPSS 0.5%CVSS 9.8
critical.is priorityof 100
38
CVSS 9.8 (CNA)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 41.1.411 × 208.2No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
Linux00cfd77b9063dcdf3628a7087faba60de85a9cc8 – < d9b272a85fe6b8f993e37915311e4038c814a533d9b272a85fe6b8f993e37915311e4038c814a533CNA
Linux00cfd77b9063dcdf3628a7087faba60de85a9cc8 – < 23079e0b7742ec114d3507c3e3aad01b7b69e4af23079e0b7742ec114d3507c3e3aad01b7b69e4afCNA
Linux00cfd77b9063dcdf3628a7087faba60de85a9cc8 – < b35605e1f1e877038c8c9d499babbc891cdd234fb35605e1f1e877038c8c9d499babbc891cdd234fCNA
Linux00cfd77b9063dcdf3628a7087faba60de85a9cc8 – < 013dcdc1961543b9a3433466bc8c79a2f4ca75b5013dcdc1961543b9a3433466bc8c79a2f4ca75b5CNA
Linux00cfd77b9063dcdf3628a7087faba60de85a9cc8 – < 6e4710d7d8782cb61af29a7e7111ddfc38b9e1a36e4710d7d8782cb61af29a7e7111ddfc38b9e1a3CNA
Linux00cfd77b9063dcdf3628a7087faba60de85a9cc8 – < 2ad56e434199ca24a812bb353667aa1c3860f5132ad56e434199ca24a812bb353667aa1c3860f513CNA
Linux00cfd77b9063dcdf3628a7087faba60de85a9cc8 – < cc3c0399361efaaf7ae64262eb3f70829b1189c6cc3c0399361efaaf7ae64262eb3f70829b1189c6CNA
Linux00cfd77b9063dcdf3628a7087faba60de85a9cc8 – < 5cd6e0ad79d2615264f63929f8b457ad97ae550d5cd6e0ad79d2615264f63929f8b457ad97ae550dCNA
Linux5.105.10.259CNA
SIMATIC S7-1500 TM MFP - GNU/Linux subsystemall versions–siemens-SADP

Scores by source

Linux (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

refgit.kernel.org/stable/c/d9b272a85fe6b8f993e37915311e4038c814a533refgit.kernel.org/stable/c/23079e0b7742ec114d3507c3e3aad01b7b69e4afrefgit.kernel.org/stable/c/b35605e1f1e877038c8c9d499babbc891cdd234frefgit.kernel.org/stable/c/013dcdc1961543b9a3433466bc8c79a2f4ca75b5refgit.kernel.org/stable/c/6e4710d7d8782cb61af29a7e7111ddfc38b9e1a3refgit.kernel.org/stable/c/2ad56e434199ca24a812bb353667aa1c3860f513refgit.kernel.org/stable/c/cc3c0399361efaaf7ae64262eb3f70829b1189c6refgit.kernel.org/stable/c/5cd6e0ad79d2615264f63929f8b457ad97ae550drefcert-portal.siemens.com/productcert/html/ssa-784472.html