Description
In the Linux kernel, the following vulnerability has been resolved:
cifs: Fix connections leak when tlink setup failed
If the tlink setup failed, lost to put the connections, then
the module refcnt leak since the cifsd kthread not exit.
Also leak the fscache info, and for next mount with fsc, it will
print the follow errors:
CIFS: Cache volume key already in use (cifs,127.0.0.1:445,TEST)
Let's check the result of tlink setup, and do some cleanup.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Linux | Linux | 5.0 | 5.10.258 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | linux | 6.0.10-1 | — |
| Debian 13 | linux | 6.0.10-1 | — |
| Debian 12 | linux | 6.0.10-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Nvidia-BlueField 22.04 LTS | linux-bluefield | 5.15.0-1014.16 | — |
| Ubuntu 24.04 LTS | linux-realtime +1 | No fix yet | — |
| Ubuntu 22.04 LTS | linux +1 | 5.15.0-67.74 | — |
| Ubuntu 22.04 LTS | linux-aws | 5.15.0-1031.35 | — |
| Ubuntu 22.04 LTS | linux-azure | 5.15.0-1034.41 | — |
| Ubuntu 22.04 LTS | linux-azure-fde | 5.15.0-1034.41.1 | — |
| Ubuntu 22.04 LTS | linux-gcp | 5.15.0-1030.37 | — |
| Ubuntu 22.04 LTS | linux-gke | 5.15.0-1028.33 | — |
| Ubuntu 22.04 LTS | linux-gkeop | 5.15.0-1016.21 | — |
| Ubuntu 22.04 LTS | linux-ibm | 5.15.0-1026.29 | — |
| Ubuntu 22.04 LTS | linux-intel-iotg | 5.15.0-1026.31 | — |
| Ubuntu 22.04 LTS | linux-kvm | 5.15.0-1029.34 | — |
| Ubuntu 22.04 LTS | linux-nvidia | 5.15.0-1023.23 | — |
| Ubuntu 22.04 LTS | linux-oracle | 5.15.0-1030.36 | — |
| Ubuntu 22.04 LTS | linux-raspi | 5.15.0-1025.27 | — |
| Ubuntu 22.04 LTS | linux-riscv +31 | No fix yet | — |
| Ubuntu 20.04 LTS | linux-aws-5.15 | 5.15.0-1031.35~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-azure-5.15 | 5.15.0-1034.41~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-gcp-5.15 | 5.15.0-1030.37~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-gke +28 | No fix yet | — |
| Ubuntu 20.04 LTS | linux-hwe-5.15 +1 | 5.15.0-67.74~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-intel-iotg-5.15 | 5.15.0-1026.31~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-nvidia-tegra-5.15 | 5.15.0-1014.14~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-oracle-5.15 | 5.15.0-1030.36~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-riscv-5.15 | 5.15.0-1030.34~20.04.1 | — |
| Ubuntu 18.04 LTS | linux-gcp +14 | No fix yet | — |
Show 6 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | linux-hwe-edge | No fix yet | — |
| Ubuntu Pro Realtime 22.04 LTS | linux-intel-iot-realtime | 5.15.0-1022.27 | — |
| Ubuntu Pro Realtime 22.04 LTS | linux-realtime | 5.15.0-1033.36 | — |
| Ubuntu Pro FIPS 20.04 LTS | linux-fips +3 | No fix yet | — |
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-fips +3 | No fix yet | — |
| Ubuntu Pro 20.04 LTS | linux +10 | No fix yet | — |
| Ubuntu Pro 18.04 LTS | linux-aws-5.4 +6 | No fix yet | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP5 | kernel-64kb +6 | 5.14.21-150500.55.110.1 | SUSE-SU-2025:02173-1 |
| SLES 15 SP5 | kernel-default-base | 5.14.21-150500.55.110.1.150500.6.51.3 | SUSE-SU-2025:02173-1 |
| SLES 15 SP4 | kernel-64kb +6 | 5.14.21-150400.24.167.1 | SUSE-SU-2025:02262-1 |
| SLES 15 SP4 | kernel-default-base | 5.14.21-150400.24.167.1.150400.24.84.1 | SUSE-SU-2025:02262-1 |
| SLES 12 SP5 | kernel-syms +2 | 4.12.14-122.261.1 | SUSE-SU-2025:01983-1 |
Show 12 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 15 SP5 | kernel-default-base | 5.14.21-150500.55.110.1.150500.6.51.3 | SUSE-SU-2025:02173-1 |
| SLES for SAP 15 SP5 | kernel-docs +4 | 5.14.21-150500.55.110.1 | SUSE-SU-2025:02173-1 |
| SLES for SAP 15 SP4 | kernel-default-base | 5.14.21-150400.24.167.1.150400.24.84.1 | SUSE-SU-2025:02262-1 |
| SLES for SAP 15 SP4 | kernel-docs +4 | 5.14.21-150400.24.167.1 | SUSE-SU-2025:02262-1 |
| SLE Micro 5.5 | kernel-default-base | 5.14.21-150500.55.110.1.150500.6.51.3 | SUSE-SU-2025:02173-1 |
| SLE Micro 5.5 | kernel-rt +1 | 5.14.21-150500.13.97.1 | SUSE-SU-2025:01966-1 |
| SLE Micro 5.5 | kernel-source +1 | 5.14.21-150500.55.110.1 | SUSE-SU-2025:02173-1 |
| SLE Micro 5.4 | kernel-default | 5.14.21-150400.24.167.1 | SUSE-SU-2025:02262-1 |
| SLE Micro 5.4 | kernel-default-base | 5.14.21-150400.24.167.1.150400.24.84.1 | SUSE-SU-2025:02262-1 |
| SLE Micro 5.4 | kernel-rt +1 | 5.14.21-150400.15.121.1 | SUSE-SU-2025:01918-1 |
| SLE Micro 5.3 | kernel-default | 5.14.21-150400.24.167.1 | SUSE-SU-2025:02262-1 |
| SLE Micro 5.3 | kernel-default-base | 5.14.21-150400.24.167.1.150400.24.84.1 | SUSE-SU-2025:02262-1 |
| SLE Micro 5.3 | kernel-rt +1 | 5.14.21-150400.15.121.1 | SUSE-SU-2025:01918-1 |
| SLE Live Patching 15 SP5 | kernel-default | 5.14.21-150500.55.110.1 | SUSE-SU-2025:02173-1 |
| SLE Live Patching 15 SP5 | kernel-livepatch-SLE15-SP5_Update_27 | 1-150500.11.7.1 | SUSE-SU-2025:02173-1 |
| SLE Live Patching 15 SP4 | kernel-default | 5.14.21-150400.24.167.1 | SUSE-SU-2025:02262-1 |
| SLE Live Patching 15 SP4 | kernel-livepatch-SLE15-SP4_Update_41 | 1-150400.9.3.1 | SUSE-SU-2025:02262-1 |
| SLE Live Patching 12 SP5 | kernel-default | 4.12.14-122.261.1 | SUSE-SU-2025:01983-1 |
| SLE Live Patching 12 SP5 | kgraft-patch-SLE12-SP5_Update_69 | 1-8.3.1 | SUSE-SU-2025:01983-1 |
| SLE HPC 15 SP5 | kernel-64kb +5 | 5.14.21-150500.55.110.1 | SUSE-SU-2025:02173-1 |
| SLE HPC 15 SP5 | kernel-default-base | 5.14.21-150500.55.110.1.150500.6.51.3 | SUSE-SU-2025:02173-1 |
| SLE HPC 15 SP4 | kernel-64kb +5 | 5.14.21-150400.24.167.1 | SUSE-SU-2025:02262-1 |
| SLE HPC 15 SP4 | kernel-default-base | 5.14.21-150400.24.167.1.150400.24.84.1 | SUSE-SU-2025:02262-1 |
| SUSE Manager Server 4.3 | kernel-default-base | 5.14.21-150400.24.167.1.150400.24.84.1 | SUSE-SU-2025:02262-1 |
| SUSE Manager Server 4.3 | kernel-syms +3 | 5.14.21-150400.24.167.1 | SUSE-SU-2025:02262-1 |
| SUSE Manager Proxy 4.3 | kernel-default-base | 5.14.21-150400.24.167.1.150400.24.84.1 | SUSE-SU-2025:02262-1 |
| SUSE Manager Proxy 4.3 | kernel-syms +2 | 5.14.21-150400.24.167.1 | SUSE-SU-2025:02262-1 |
Advisories 5
- SUSE-SU-2025:02262-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:01918-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:02173-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:01966-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:01983-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026