CVE-2026-98498

high

Description

In the Linux kernel, the following vulnerability has been resolved: net/mlx5: Fix rev_entry reference leak in mlx5_tc_ct_shared_counter_get() When the reverse entry is found but its counter is already being released, refcount_inc_not_zero() fails and the reference taken by mlx5_tc_ct_entry_get() is never dropped before falling through to create_counter. Drop it so the reverse entry is not kept alive forever by a shared counter lookup that did not use it.

References

https://git.kernel.org/stable/c/c45c997d0c27359b502587897f775c5a277f0bd4

https://git.kernel.org/stable/c/99d8dc51663747078c031acac32edc6d90c8f1f7

https://git.kernel.org/stable/c/79a3257280a335bbebbcd10d3895e8468bdcd6ae

https://git.kernel.org/stable/c/60eab87d0a798070bf5a856b1d9e5785ce92da53

https://git.kernel.org/stable/c/598daa5f95883f881a54967da40ce0fdfc1fdaa8

https://git.kernel.org/stable/c/288721013605b4e0304e10f6a087b77f71cfad11

https://git.kernel.org/stable/c/1f13989a0704bd98cab09f9bee63e2c8a98ad4dd

https://git.kernel.org/stable/c/0bf6bb567f0edaa771e7dd208ef98da50e6a4485

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-103738

Details

Source: Mitre, NVD

Published: 2026-10-18

Updated: 2026-10-19

Risk Information

CVSS v2

Base Score: 5.6

Vector: CVSS2#AV:L/AC:L/Au:N/C:P/I:N/A:C

Severity: Medium

CVSS v3

Base Score: 7.1

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Severity: High

EPSS

EPSS: 0.0021