CVE-2026-46170

MEDIUM EPSS 2.8%
Published May 28, 20261mo ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published May 28, 2026 1mo ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: mptcp: pm: ADD_ADDR rtx: free sk if last When an ADD_ADDR is retransmitted, the sk is held in sk_reset_timer(), and released at the end. If at that moment, it was the last reference being held, the sk would not be freed. sock_put() should then be called instead of __sock_put(). But that's not enough: if it is the last reference, sock_put() will call sk_free(), which will end up calling sk_stop_timer_sync() on the same timer, and waiting indefinitely to finish. So it is needed to mark that the timer is done at the end of the timer handler when it has not been rescheduled, not to call sk_stop_timer_sync() on "itself".

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
2.8% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Affected Products 6

VendorProductVersionRange
linuxlinux_kernel*≥5.10  –  <6.6.142
linuxlinux_kernel*≥6.7  –  <6.12.92
linuxlinux_kernel*≥6.13  –  <6.18.30
linuxlinux_kernel*≥6.19  –  <7.0.7
linuxlinux_kernel7.1any
linuxlinux_kernel7.1any

References 5

  • git.kernel.org https://git.kernel.org/stable/c/531c537b8fb620beabccfb1594e8d43cbebbb87a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6a3af482188f6db4186d1605f64d911d7330abb3
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/8143a224785ceaf2b0856e08d4498916f38228fb
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b74ad20198652b6b39a761c277ba65ae82b1e107
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b7b9a461569734d33d3259d58d2507adfac107ed
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/531c537b8fb620beabccfb1594e8d43cbebbb87a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6a3af482188f6db4186d1605f64d911d7330abb3
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/8143a224785ceaf2b0856e08d4498916f38228fb
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b74ad20198652b6b39a761c277ba65ae82b1e107
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b7b9a461569734d33d3259d58d2507adfac107ed
    Patch