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CVE-2026-72308

Updated on 15 Aug 2026

Severity

5.5 Medium severity

Details

CVSS score
5.5
Links
NISTCIRCLRHELUbuntu

Overview

About vulnerability

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

mlxsw: fix refcount leak in mlxsw_sp_port_lag_join()

When mlxsw_sp_port_lag_index_get() fails, mlxsw_sp_port_lag_join() returns an error without releasing the lag reference obtained by the earlier mlxsw_sp_lag_get(). All other error paths in the function jump to the cleanup label that ends with mlxsw_sp_lag_put(), so this is a single missed release.

Fix the leak by replacing the bare ‘return err’ with a goto to the existing error cleanup label, which will drop the reference safely.

Details

Affected product:
AlmaLinux 9.2 ESU , Amazon Linux 2 ELS , CentOS 7 ELS , CentOS 8.4 ELS , CentOS 8.5 ELS , CentOS Stream 8 ELS , CloudLinux 7 ELS , Debian 10 ELS , Debian 11 ELS , Oracle Linux 7 ELS , RHEL 7 ELS , TuxCare 9.6 ESU , TuxCare 9.8 ESU , Ubuntu 16.04 ELS , Ubuntu 18.04 ELS , Ubuntu 20.04 ELS
Affected packages:
linux @ 4.19.0 (+16 more)

Fixes

KernelCare state

Live-patch status from KernelCare for each operating system.

Operating system Status Covered kernels
CentOS 7 ELS Released
37 kernels
  • 3.10.0-1160.119.1.el7.tuxcare.els10
  • 3.10.0-1160.119.1.el7.tuxcare.els4
  • 3.10.0-1160.119.1.el7.tuxcare.els6
  • 3.10.0-1160.119.1.el7.tuxcare.els15
  • 3.10.0-1160.119.1.el7.tuxcare.els5
  • 3.10.0-1160.119.1.el7.tuxcare.els3
  • 3.10.0-1160.119.1.el7.tuxcare.els14
  • 3.10.0-1160.119.1.el7.tuxcare.els16
  • 3.10.0-1160.119.1.el7.tuxcare.els13
  • 3.10.0-1160.119.1.el7.tuxcare.els7
  • 3.10.0-1160.119.1.el7.tuxcare.els12
  • 3.10.0-1160.119.1.el7.tuxcare.els9
  • 3.10.0-1160.119.1.el7.tuxcare.els8
  • 3.10.0-1160.119.1.el7.tuxcare.els17
  • 3.10.0-1160.119.1.el7.tuxcare.els18
  • 3.10.0-1160.119.1.el7.tuxcare.els19
  • 3.10.0-1160.119.1.el7.tuxcare.els20
  • 3.10.0-1160.119.1.el7.tuxcare.els21
  • 3.10.0-1160.119.1.el7.tuxcare.els24
  • 3.10.0-1160.119.1.el7.tuxcare.els22
  • 3.10.0-1160.119.1.el7.tuxcare.els25
  • 3.10.0-1160.139.1.el7.tuxcare.els2
  • 3.10.0-1160.139.1.el7.tuxcare.els3
  • 3.10.0-1160.139.1.el7.tuxcare.els4
  • 3.10.0-1160.142.1.el7.tuxcare.els1
  • 3.10.0-1160.144.1.el7.tuxcare.els1
  • 3.10.0-1160.144.1.el7.tuxcare.els2
  • 3.10.0-1160.144.1.el7.tuxcare.els3
  • 3.10.0-1160.144.1.el7.tuxcare.els4
  • 3.10.0-1160.144.1.el7.tuxcare.els5
  • 3.10.0-1160.144.1.el7.tuxcare.els6
  • 3.10.0-1160.144.1.el7.tuxcare.els8
  • 3.10.0-1160.144.1.el7.tuxcare.els7
  • 3.10.0-1160.144.1.el7.tuxcare.els9
  • 3.10.0-1160.156.1.el7.tuxcare.els1
  • 3.10.0-1160.156.1.el7.tuxcare.els2
  • 3.10.0-1160.156.1.el7.tuxcare.els3
Debian 12 Planned —
Debian 13 Will Not Fix
13 kernels
  • 6.12.85-1
  • 6.12.86-1
  • 6.12.88-1
  • 6.12.74-2
  • 6.12.73-1
  • 6.12.63-1
  • 6.12.69-1
  • 6.12.74-1
  • 6.12.90-1
  • 6.12.90-2
  • 6.12.94-1
  • 6.12.95-1
  • 6.12.96-1
Ubuntu 24.04 Planned —
Ubuntu 24.04 AWS Planned —
Ubuntu 26.04 In Rollout
2 kernels
  • 7.0.0-31.31
  • 7.0.0-34.34