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CVE

CVE-2026-46137

mptcp: pm: ADD_ADDR rtx: fix potential data-race
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CVE

CVE-2026-46137

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

In the Linux kernel, the following vulnerability has been resolved:

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

This mptcppmadd_timer() helper is executed as a timer callback in

softirq context. To avoid any data races, the socket lock needs to be

held with bhlocksock().

If the socket is in use, retry again soon after, similar to what is done

with the keepalive timer.

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
9.8
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
C
H
U
0
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
C
H
U
-

Related Resources

No items found.

References

https://git.kernel.org/stable/c/013dcdc1961543b9a3433466bc8c79a2f4ca75b5, https://git.kernel.org/stable/c/23079e0b7742ec114d3507c3e3aad01b7b69e4af, https://git.kernel.org/stable/c/2ad56e434199ca24a812bb353667aa1c3860f513, https://git.kernel.org/stable/c/5cd6e0ad79d2615264f63929f8b457ad97ae550d, https://git.kernel.org/stable/c/6e4710d7d8782cb61af29a7e7111ddfc38b9e1a3, https://git.kernel.org/stable/c/b35605e1f1e877038c8c9d499babbc891cdd234f, https://git.kernel.org/stable/c/cc3c0399361efaaf7ae64262eb3f70829b1189c6, https://git.kernel.org/stable/c/d9b272a85fe6b8f993e37915311e4038c814a533, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46137.json, https://nvd.nist.gov/vuln/detail/CVE-2026-46137, https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Severity

9.8

CVSS Score
0
10

Basic Information

Base CVSS
9.8
EPSS Probability
0.00426%
EPSS Percentile
0.35829%
Introduced Version
00cfd77b9063dcdf3628a7087faba60de85a9cc8,5.10.0,5.11.0,5.16.0,6.2.0,6.7.0,6.13.0,6.19.0,0
Fix Available
5cd6e0ad79d2615264f63929f8b457ad97ae550d,5.10.259,5.15.210,6.1.176,6.6.141,6.12.91,6.18.30,7.0.7,6.1.176-1,5.10.259-1,6.1.176-1~deb11u1,6.12.94-1,5.15.0-1112.119~20.04.1,5.15.0-1117.126~20.04.1,5.15.0-1117.126~20.04.2,5.15.0-186.196~20.04.1,5.15.0-1106.110~20.04.1,5.15.0-1107.113~20.04.1,5.15.0-184.194~20.04.1,5.15.0-1064.66~20.04.1,5.15.0-1109.115~20.04.1,6.8.0-136.136,6.8.0-1061.64,6.8.0-1063.71,6.17.0-1022.22,6.8.0-1062.69,6.8.0-1064.72,6.17.0-1022.25,6.8.0-1059.67,6.8.0-1046.50,6.17.0-42.42,7.0.0-28.28~24.04.1,6.8.0-1061.62,6.8.0-136.136.2,6.8.0-1059.62,6.8.0-1059.62.1,6.8.0-1030.31,6.17.0-1032.32,6.8.0-1058.61,6.17.0-1020.20,6.8.0-1061.65,6.8.0-1033.34,5.15.0-186.196,5.15.0-1112.119,6.8.0-1061.64~22.04.1,5.15.0-1117.126,6.8.0-1063.71~22.04.1,6.8.0-1062.69~22.04.1,5.15.0-1112.122,6.8.0-1064.72~22.04.1,5.15.0-1108.114,5.15.0-1095.103,6.8.0-136.136~22.04.1,5.15.0-1106.110,6.8.0-1061.62~22.04.1,5.15.0-1107.113,5.15.0-1104.109,5.15.0-184.194,6.8.0-136.136.2~22.04.1,5.15.0-1107.108,6.8.0-1059.62~22.04.1,5.15.0-1064.66,5.15.0-1053.53,5.15.0-1109.115,6.8.0-1058.61~22.04.1,6.8.0-136.136~22.04.3,5.15.0-1075.79,0:5.10.259-258.1043.amzn2,0:1.0-0.amzn2,0:5.15.210-148.245.amzn2,1:6.18.30-61.116.amzn2023,1:1.0-0.amzn2023,1:6.12.92-122.166.amzn2023,1:6.1.176-220.358.amzn2023

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