CVE-2026-46158
MEDIUM
MEDIUM
Priority: 0.01
BB Relevance:
36/100
Published: 2026-05-28
Modified: 2026-11-06
First seen: 2026-11-06
Status: active
Attack Surface
Low Complexity
No Interaction
CVSS Vector Breakdown
AV:
Local
AC:
Low
PR:
Low
UI:
None
S:
Unchanged
C:
None
I:
None
A:
High
Description
In the Linux kernel, the following vulnerability has been resolved: mptcp: pm: ADD_ADDR rtx: always decrease sk refcount When an ADD_ADDR is retransmitted, the sk is held in sk_reset_timer(). It should then be released in all cases at the end. Some (unlikely) checks were returning directly instead of calling sock_put() to decrease the refcount. Jump to a new 'exit' label to call __sock_put() (which will become sock_put() in the next commit) to fix this potential leak. While at it, drop the '!msk' check which cannot happen because it is never reset, and explicitly mark the remaining one as "unlikely".
Affected Software (12)
| Vendor | Product | Version |
|---|---|---|
| Linux | Linux | 00cfd77b9063dcdf3628a7087faba60de85a9cc8 < f5555a6d7c472849fdf2b426e3d0a85103118793 |
| Linux | Linux | 00cfd77b9063dcdf3628a7087faba60de85a9cc8 < e9ba34301d2e90f63f97c76ad9eb98e5250fe961 |
| Linux | Linux | 00cfd77b9063dcdf3628a7087faba60de85a9cc8 < 81d8142148164176385c279c7c1e1d581867423d |
| Linux | Linux | 00cfd77b9063dcdf3628a7087faba60de85a9cc8 < 9426265e157dd77ec237c795901ed4dea6d69b5c |
| Linux | Linux | 00cfd77b9063dcdf3628a7087faba60de85a9cc8 < b41dd76f3b9735096c21d3e799a2b9fe36498d57 |
| Linux | Linux | 00cfd77b9063dcdf3628a7087faba60de85a9cc8 < acd3d3562315c99f3c0db16f0fcc5f0306638982 |
| Linux | Linux | 00cfd77b9063dcdf3628a7087faba60de85a9cc8 < 25e37407442b8766ec2cf52fb4e31b5c3d3aeeae |
| Linux | Linux | 00cfd77b9063dcdf3628a7087faba60de85a9cc8 < 9634cb35af17019baec21ca648516ce376fa10e6 |
| Linux | Linux | 5.10 |
| linux | linux_kernel | 5.10 – 6.6.142 |
| linux | linux_kernel | 7.1 |
| linux | linux_kernel | 7.1 |