CVE-2026-46137
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.43%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.43% probability · 36th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-362
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/013dcdc1961543b9a3433466bc8c79a2f4ca75b5Patch
- https://git.kernel.org/stable/c/23079e0b7742ec114d3507c3e3aad01b7b69e4afPatch
- https://git.kernel.org/stable/c/2ad56e434199ca24a812bb353667aa1c3860f513Patch
- https://git.kernel.org/stable/c/5cd6e0ad79d2615264f63929f8b457ad97ae550dPatch
- https://git.kernel.org/stable/c/6e4710d7d8782cb61af29a7e7111ddfc38b9e1a3Patch
- https://git.kernel.org/stable/c/b35605e1f1e877038c8c9d499babbc891cdd234fPatch
- https://git.kernel.org/stable/c/cc3c0399361efaaf7ae64262eb3f70829b1189c6Patch
- https://git.kernel.org/stable/c/d9b272a85fe6b8f993e37915311e4038c814a533Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.