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8.4
CVE-2026-43215: Linux kernel CIFS file sharing lock issue fixed
CVE-2026-43215 · published 6 months ago
Summary
The Linux kernel's CIFS network file sharing component had a mistake in how it protected certain internal data, which could cause conflicts when multiple processes accessed files simultaneously. This has been corrected by using a more precise locking method, improving stability. Update your Linux kernel to the latest version to apply the fix.
What to do
- Update canonical linux-aws-6.8 to version 6.8.0-1060.63~22.04.1.
- Update canonical linux-azure-6.8 to version 6.8.0-1063.71~22.04.1.
- Update canonical linux-azure-fde-6.8 to version 6.8.0-1062.69~22.04.1.
- Update canonical linux-gcp-6.8 to version 6.8.0-1063.69~22.04.1.
- Update canonical linux-hwe-6.8 to version 6.8.0-136.136~22.04.1.
- Update canonical linux-ibm-6.8 to version 6.8.0-1060.61~22.04.1.
- Update canonical linux-lowlatency-hwe-6.8 to version 6.8.0-134.134.1~22.04.1.
- Update canonical linux-nvidia-6.8 to version 6.8.0-1058.61~22.04.1.
- Update canonical linux-oracle-6.8 to version 6.8.0-1057.58~22.04.1.
- Update canonical linux-riscv-6.8 to version 6.8.0-134.134~22.04.1.
- Update canonical linux-realtime-6.8 to version 6.8.1-1055.56~22.04.1.
- Update canonical linux to version 6.8.0-134.134.
- Update canonical linux-aws to version 6.8.0-1060.63.
- Update canonical linux-azure to version 6.8.0-1063.71.
- Update canonical linux-azure-fde to version 6.8.0-1062.69.
- Update canonical linux-gcp to version 6.8.0-1063.69.
- Update canonical linux-gke to version 6.8.0-1058.64.
- Update canonical linux-gkeop to version 6.8.0-1045.48.
- Update canonical linux-nvidia-tegra to version 6.8.0-1029.30.
- Update canonical linux-oracle to version 6.8.0-1057.58.
- Update canonical linux-raspi to version 6.8.0-1060.64.
- Update canonical linux-xilinx to version 6.8.0-1032.33.
- Update canonical linux-aws-fips to version 6.8.0-1060.63+fips1.
- Update canonical linux-azure-fips to version 6.8.0-1062.69+fips1.
- Update canonical linux-fips to version 6.8.0-134.134+fips1.
- Update canonical linux-gcp-fips to version 6.8.0-1063.69+fips1.
- Update canonical linux-raspi-realtime to version 6.8.0-2049.50.
- Update canonical linux-realtime to version 6.8.1-1055.56.
- Update debian linux to version 6.12.85-1.
- Update debian linux to version 6.19.6-1.
- Update debian rootio-linux to version 6.1.170-1.root.io.128.
- Update bellsoft linux-lts to version 6.12.80-r0.
- Update bellsoft linux-lts to version 6.12.76-r0.
- Update canonical linux-ibm to version 6.8.0-1060.61.
- Update canonical linux-lowlatency to version 6.8.0-134.134.1.
- Update canonical linux-nvidia to version 6.8.0-1058.61.
- Update canonical linux-nvidia-lowlatency to version 6.8.0-1058.61.1.
- Update debian rootio-linux to version 5.10.251-4.root.io.81.
- Update debian rootio-linux to version 5.10.259-1.root.io.112.
- Update canonical rootio-linux to version 5.15.0-185.195.root.io.101.
- Update canonical rootio-linux to version 5.15.0-186.196.root.io.103.
- Update canonical rootio-linux to version 5.15.0-186.196.aikido.104.
- Update canonical rootio-linux to version 6.8.0-136.136.root.io.83.
- Update canonical linux-bluefield to version 6.8.0-1026.30.
- Update linux to version 6.8.0-146.146.aikido.89.
- Update rootio-linux to version 6.8.0-146.146.aikido.89.
- Update linux to version 5.15.0-198.208.aikido.116.
- Update rootio-linux to version 5.15.0-198.208.aikido.116.
- Update linux to version 6.8.0-147.147.aikido.90.
- Update rootio-linux to version 6.8.0-147.147.aikido.90.
- Update linux kernel to version 6.19.6.
- Update linux to version 6.1.190-1.aikido.167.
- Update rootio-linux to version 6.1.190-1.aikido.167.
- Update linux to version 5.15.0-202.212.aikido.118.
- Update rootio-linux to version 5.15.0-202.212.aikido.118.
- Update bellsoft linux-lts to version 6.1.191-r0.
- Update bellsoft linux-lts to version 6.18.35-r1.
- Update linux linux to version 92d197ef7e9bb4994dae2bb17c2f19fa09d219a2 or later.
Affected software
| Ecosystem | Vendor | Product | Affected versions |
|---|---|---|---|
| – | linux | linux_kernel |
>= 6.13, < 6.18.16 >= 6.0, < 6.6.128 >= 6.7, < 6.12.75 >= 6.19, < 6.19.6 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| Ubuntu:16.04:LTS | canonical | linux-hwe-edge | All versions |
| Ubuntu:18.04:LTS | canonical | linux-aws-5.0 | All versions |
| Ubuntu:18.04:LTS | canonical | linux-aws-5.3 | All versions |
| Ubuntu:18.04:LTS | canonical | linux-azure | All versions |
| Ubuntu:18.04:LTS | canonical | linux-azure-5.3 | All versions |
| Ubuntu:18.04:LTS | canonical | linux-azure-edge | All versions |
| Ubuntu:18.04:LTS | canonical | linux-gcp | All versions |
| Ubuntu:18.04:LTS | canonical | linux-gcp-5.3 | All versions |
| Ubuntu:18.04:LTS | canonical | linux-gke-4.15 | All versions |
| Ubuntu:18.04:LTS | canonical | linux-gke-5.4 | All versions |
| Ubuntu:18.04:LTS | canonical | linux-gkeop-5.4 | All versions |
| Ubuntu:18.04:LTS | canonical | linux-hwe | All versions |
| Ubuntu:18.04:LTS | canonical | linux-hwe-edge | All versions |
| Ubuntu:18.04:LTS | canonical | linux-oem | All versions |
| Ubuntu:18.04:LTS | canonical | linux-oracle-5.0 | All versions |
| Ubuntu:18.04:LTS | canonical | linux-oracle-5.3 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-aws-5.11 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-aws-5.13 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-aws-5.8 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-azure-5.11 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-azure-5.13 | All versions |
| Ubuntu:Pro:20.04:LTS | canonical | linux-azure-5.15 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-azure-5.8 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-azure-fde | All versions |
| Ubuntu:Pro:20.04:LTS | canonical | linux-azure-fde-5.15 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-gcp-5.11 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-gcp-5.13 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-gcp-5.8 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-gke | All versions |
| Ubuntu:20.04:LTS | canonical | linux-gke-5.15 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-gkeop | All versions |
| Ubuntu:20.04:LTS | canonical | linux-gkeop-5.15 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-hwe-5.11 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-hwe-5.13 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-hwe-5.8 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-intel-5.13 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-oem-5.10 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-oem-5.13 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-oem-5.14 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-oem-5.6 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-oracle-5.11 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-oracle-5.13 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-oracle-5.8 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-raspi2 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-riscv | All versions |
| Ubuntu:20.04:LTS | canonical | linux-riscv-5.11 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-riscv-5.8 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-allwinner-5.19 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-aws-5.19 | All versions |
Showing 50 of 177. Show the rest
| Ecosystem | Vendor | Product | Affected versions |
|---|---|---|---|
| Ubuntu:22.04:LTS | canonical | linux-aws-6.2 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-aws-6.5 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-aws-6.8 |
< 6.8.0-1060.63~22.04.1 Fix: upgrade to 6.8.0-1060.63~22.04.1
|
| Ubuntu:22.04:LTS | canonical | linux-azure | All versions |
| Ubuntu:22.04:LTS | canonical | linux-azure-5.19 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-azure-6.2 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-azure-6.5 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-azure-6.8 |
< 6.8.0-1063.71~22.04.1 Fix: upgrade to 6.8.0-1063.71~22.04.1
|
| Ubuntu:22.04:LTS | canonical | linux-azure-fde | All versions |
| Ubuntu:22.04:LTS | canonical | linux-azure-fde-5.19 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-azure-fde-6.2 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-azure-fde-6.8 |
< 6.8.0-1062.69~22.04.1 Fix: upgrade to 6.8.0-1062.69~22.04.1
|
| Ubuntu:22.04:LTS | canonical | linux-gcp-5.19 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-gcp-6.2 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-gcp-6.5 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-gcp-6.8 |
< 6.8.0-1063.69~22.04.1 Fix: upgrade to 6.8.0-1063.69~22.04.1
|
| Ubuntu:22.04:LTS | canonical | linux-hwe-5.19 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-hwe-6.2 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-hwe-6.5 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-hwe-6.8 |
< 6.8.0-136.136~22.04.1 Fix: upgrade to 6.8.0-136.136~22.04.1
|
| Ubuntu:22.04:LTS | canonical | linux-ibm-6.8 |
< 6.8.0-1060.61~22.04.1 Fix: upgrade to 6.8.0-1060.61~22.04.1
|
| Ubuntu:22.04:LTS | canonical | linux-intel-iot-realtime | All versions |
| Ubuntu:22.04:LTS | canonical | linux-lowlatency-hwe-5.19 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-lowlatency-hwe-6.2 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-lowlatency-hwe-6.5 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-lowlatency-hwe-6.8 |
< 6.8.0-134.134.1~22.04.1 Fix: upgrade to 6.8.0-134.134.1~22.04.1
|
| Ubuntu:22.04:LTS | canonical | linux-nvidia-6.2 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-nvidia-6.5 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-nvidia-6.8 |
< 6.8.0-1058.61~22.04.1 Fix: upgrade to 6.8.0-1058.61~22.04.1
|
| Ubuntu:22.04:LTS | canonical | linux-oem-5.17 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-oem-6.0 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-oem-6.1 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-oem-6.5 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-oracle-6.5 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-oracle-6.8 |
< 6.8.0-1057.58~22.04.1 Fix: upgrade to 6.8.0-1057.58~22.04.1
|
| Ubuntu:22.04:LTS | canonical | linux-realtime | All versions |
| Ubuntu:22.04:LTS | canonical | linux-riscv | All versions |
| Ubuntu:22.04:LTS | canonical | linux-riscv-5.19 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-riscv-6.5 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-riscv-6.8 |
< 6.8.0-134.134~22.04.1 Fix: upgrade to 6.8.0-134.134~22.04.1
|
| Ubuntu:22.04:LTS | canonical | linux-starfive-5.19 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-starfive-6.2 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-starfive-6.5 | All versions |
| Ubuntu:Pro:FIPS-preview:22.04:LTS | canonical | linux-azure-fips | All versions |
| Ubuntu:Pro:FIPS-updates:22.04:LTS | canonical | linux-azure-fips | All versions |
| Ubuntu:Pro:Realtime:22.04:LTS | canonical | linux-realtime-6.8 |
< 6.8.1-1055.56~22.04.1 Fix: upgrade to 6.8.1-1055.56~22.04.1
|
| Ubuntu:24.04:LTS | canonical | linux |
< 6.8.0-134.134 Fix: upgrade to 6.8.0-134.134
|
| Ubuntu:24.04:LTS | canonical | linux-aws |
< 6.8.0-1060.63 Fix: upgrade to 6.8.0-1060.63
|
| Ubuntu:24.04:LTS | canonical | linux-aws-6.14 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-aws-6.17 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-azure |
< 6.8.0-1063.71 Fix: upgrade to 6.8.0-1063.71
|
| Ubuntu:24.04:LTS | canonical | linux-azure-6.11 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-azure-6.14 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-azure-6.17 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-azure-fde |
< 6.8.0-1062.69 Fix: upgrade to 6.8.0-1062.69
|
| Ubuntu:24.04:LTS | canonical | linux-azure-fde-6.14 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-azure-nvidia | All versions |
| Ubuntu:24.04:LTS | canonical | linux-azure-nvidia-6.14 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-gcp |
< 6.8.0-1063.69 Fix: upgrade to 6.8.0-1063.69
|
| Ubuntu:24.04:LTS | canonical | linux-gcp-6.11 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-gcp-6.14 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-gcp-6.17 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-gke |
< 6.8.0-1058.64 Fix: upgrade to 6.8.0-1058.64
|
| Ubuntu:24.04:LTS | canonical | linux-gkeop |
< 6.8.0-1045.48 Fix: upgrade to 6.8.0-1045.48
|
| Ubuntu:24.04:LTS | canonical | linux-hwe-6.11 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-hwe-6.14 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-nvidia-tegra |
< 6.8.0-1029.30 Fix: upgrade to 6.8.0-1029.30
|
| Ubuntu:24.04:LTS | canonical | linux-oem-6.11 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-oem-6.14 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-oem-6.17 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-oem-6.8 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-oracle |
< 6.8.0-1057.58 Fix: upgrade to 6.8.0-1057.58
|
| Ubuntu:24.04:LTS | canonical | linux-oracle-6.14 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-oracle-6.17 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-raspi |
< 6.8.0-1060.64 Fix: upgrade to 6.8.0-1060.64
|
| Ubuntu:24.04:LTS | canonical | linux-raspi-realtime | All versions |
| Ubuntu:24.04:LTS | canonical | linux-realtime | All versions |
| Ubuntu:24.04:LTS | canonical | linux-riscv | All versions |
| Ubuntu:24.04:LTS | canonical | linux-riscv-6.14 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-riscv-6.17 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-xilinx |
< 6.8.0-1032.33 Fix: upgrade to 6.8.0-1032.33
|
| Ubuntu:Nvidia-BlueField:24.04:LTS | canonical | linux-bluefield |
< 6.8.0-1026.30 Fix: upgrade to 6.8.0-1026.30
|
| Ubuntu:Pro:FIPS-updates:24.04:LTS | canonical | linux-aws-fips |
< 6.8.0-1060.63+fips1 Fix: upgrade to 6.8.0-1060.63+fips1
|
| Ubuntu:Pro:FIPS-updates:24.04:LTS | canonical | linux-azure-fips |
< 6.8.0-1062.69+fips1 Fix: upgrade to 6.8.0-1062.69+fips1
|
| Ubuntu:Pro:FIPS-updates:24.04:LTS | canonical | linux-fips |
< 6.8.0-134.134+fips1 Fix: upgrade to 6.8.0-134.134+fips1
|
| Ubuntu:Pro:FIPS-updates:24.04:LTS | canonical | linux-gcp-fips |
< 6.8.0-1063.69+fips1 Fix: upgrade to 6.8.0-1063.69+fips1
|
| Ubuntu:Pro:Realtime:24.04:LTS | canonical | linux-raspi-realtime |
< 6.8.0-2049.50 Fix: upgrade to 6.8.0-2049.50
|
| Ubuntu:Pro:Realtime:24.04:LTS | canonical | linux-realtime |
< 6.8.1-1055.56 Fix: upgrade to 6.8.1-1055.56
|
| Ubuntu:Pro:Realtime:24.04:LTS | canonical | linux-realtime-6.14 | All versions |
| Ubuntu:Pro:Realtime:24.04:LTS | canonical | linux-realtime-6.17 | All versions |
| Ubuntu:25.10 | canonical | linux | All versions |
| Ubuntu:25.10 | canonical | linux-aws | All versions |
| Ubuntu:25.10 | canonical | linux-azure | All versions |
| Ubuntu:25.10 | canonical | linux-azure-fde | All versions |
| Ubuntu:25.10 | canonical | linux-gcp | All versions |
| Ubuntu:25.10 | canonical | linux-oracle | All versions |
| Ubuntu:25.10 | canonical | linux-raspi | All versions |
| Ubuntu:25.10 | canonical | linux-realtime | All versions |
| Ubuntu:25.10 | canonical | linux-riscv | All versions |
| Ubuntu:26.04:LTS | canonical | linux-azure-fde | All versions |
| Debian:12 | debian | linux | All versions |
| Debian:13 | debian | linux |
< 6.12.85-1 Fix: upgrade to 6.12.85-1
|
| Debian:14 | debian | linux |
< 6.19.6-1 Fix: upgrade to 6.19.6-1
|
| Root:Debian:12 | debian | rootio-linux |
< 6.1.170-1.root.io.128 Fix: upgrade to 6.1.170-1.root.io.128
|
| Alpaquita:23 | bellsoft | linux-lts |
>= 6.1.170-r0 >= 6.1.189-r0, < 6.1.191-r0 Fix: upgrade to 6.1.191-r0
|
| Alpaquita:25 | bellsoft | linux-lts |
>= 6.12.74-r0, < 6.12.80-r0 Fix: upgrade to 6.12.80-r0
|
| Alpaquita:stream | bellsoft | linux-lts |
>= 6.12.74-r0, < 6.12.76-r0 >= 6.12.92-r1, < 6.18.35-r1 Fix: upgrade to 6.12.76-r0
|
| Ubuntu:24.04:LTS | canonical | linux-azure-fde-7.0 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-hwe-6.17 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-ibm |
< 6.8.0-1060.61 Fix: upgrade to 6.8.0-1060.61
|
| Ubuntu:24.04:LTS | canonical | linux-lowlatency |
< 6.8.0-134.134.1 Fix: upgrade to 6.8.0-134.134.1
|
| Ubuntu:24.04:LTS | canonical | linux-lowlatency-hwe-6.11 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-nvidia |
< 6.8.0-1058.61 Fix: upgrade to 6.8.0-1058.61
|
| Ubuntu:24.04:LTS | canonical | linux-nvidia-6.11 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-nvidia-6.17 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-nvidia-lowlatency |
< 6.8.0-1058.61.1 Fix: upgrade to 6.8.0-1058.61.1
|
| Root:Debian:11 | debian | rootio-linux |
< 5.10.251-4.root.io.81 < 5.10.259-1.root.io.112 Fix: upgrade to 5.10.251-4.root.io.81
|
| Root:Ubuntu:22.04 | canonical | rootio-linux |
< 5.15.0-185.195.root.io.101 < 5.15.0-186.196.root.io.103 < 5.15.0-186.196.aikido.104 Fix: upgrade to 5.15.0-185.195.root.io.101
|
| Root:Ubuntu:24.04 | canonical | rootio-linux |
< 6.8.0-136.136.root.io.83 Fix: upgrade to 6.8.0-136.136.root.io.83
|
| Root:Ubuntu:24.04 | – | linux |
< 6.8.0-146.146.aikido.89 < 6.8.0-147.147.aikido.90 Fix: upgrade to 6.8.0-146.146.aikido.89
|
| Root:Ubuntu:24.04 | – | rootio-linux |
< 6.8.0-146.146.aikido.89 < 6.8.0-147.147.aikido.90 Fix: upgrade to 6.8.0-146.146.aikido.89
|
| Root:Ubuntu:22.04 | – | linux |
< 5.15.0-198.208.aikido.116 < 5.15.0-202.212.aikido.118 Fix: upgrade to 5.15.0-198.208.aikido.116
|
| Root:Ubuntu:22.04 | – | rootio-linux |
< 5.15.0-198.208.aikido.116 < 5.15.0-202.212.aikido.118 Fix: upgrade to 5.15.0-198.208.aikido.116
|
| Linux | linux | kernel |
>= 6.19.0, < 6.19.6 Fix: upgrade to 6.19.6
|
| Root:Debian:12 | – | linux |
< 6.1.190-1.aikido.167 Fix: upgrade to 6.1.190-1.aikido.167
|
| Root:Debian:12 | – | rootio-linux |
< 6.1.190-1.aikido.167 Fix: upgrade to 6.1.190-1.aikido.167
|
| – | linux | linux |
< 92d197ef7e9bb4994dae2bb17c2f19fa09d219a2 6.0 |
Original advisory text
BELL-CVE-2026-43215
In the Linux kernel, the following vulnerability has been resolved:
cifs: Fix locking usage for tcon fields
We used to use the cifs_tcp_ses_lock to protect a lot of objects
that are not just the server, ses or tcon lists. We later introduced
srv_lock, ses_lock and tc_lock to protect fields within the
corresponding structs. This was done to provide a more granular
protection and avoid unnecessary serialization.
There were still a couple of uses of cifs_tcp_ses_lock to provide
tcon fields. In this patch, I've replaced them with tc_lock.
cifs: Fix locking usage for tcon fields
We used to use the cifs_tcp_ses_lock to protect a lot of objects
that are not just the server, ses or tcon lists. We later introduced
srv_lock, ses_lock and tc_lock to protect fields within the
corresponding structs. This was done to provide a more granular
protection and avoid unnecessary serialization.
There were still a couple of uses of cifs_tcp_ses_lock to provide
tcon fields. In this patch, I've replaced them with tc_lock.
References
- https://docs.bell-sw.com/security/cves/CVE-2026-43215 Vendor Advisory
- https://ubuntu.com/security/CVE-2026-43215 Third Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2026-43215 Third Party Advisory
- https://git.kernel.org/linus/96c4af418586ee9a6aab61738644366426e05316 Third Party Advisory
- https://ubuntu.com/security/notices/USN-8497-1 Vendor Advisory
- https://ubuntu.com/security/notices/USN-8498-1 Vendor Advisory
- https://ubuntu.com/security/notices/USN-8499-1 Vendor Advisory
- https://ubuntu.com/security/notices/USN-8492-3 Vendor Advisory
- https://ubuntu.com/security/notices/USN-8492-4 Vendor Advisory
- https://security-tracker.debian.org/tracker/CVE-2026-43215 Vendor Advisory
- https://ubuntu.com/security/notices/USN-8492-5 Vendor Advisory
- https://ubuntu.com/security/notices/USN-8606-1 Vendor Advisory
- https://ubuntu.com/security/notices/USN-8607-1 Vendor Advisory
- https://ubuntu.com/security/notices/USN-8609-1 Vendor Advisory
- https://ubuntu.com/security/notices/USN-8619-1 Vendor Advisory
- https://ubuntu.com/security/notices/USN-8492-1 Vendor Advisory
- https://ubuntu.com/security/notices/USN-8492-2 Vendor Advisory
- https://git.kernel.org/stable/c/3969db6b22e3d90d8c5f22ac1a7fe0350a94c136 URL
- https://git.kernel.org/stable/c/601dd3b79769b38d30b693c40afdb2a4b7edf9d0 URL
- https://git.kernel.org/stable/c/8c59eeeeffa1524ef57e173a89a1a3ff539888d5 URL
- https://git.kernel.org/stable/c/92d197ef7e9bb4994dae2bb17c2f19fa09d219a2 URL
- https://git.kernel.org/stable/c/953953abb66e52c224057ab91e404284fefeab62 URL
- https://git.kernel.org/stable/c/96c4af418586ee9a6aab61738644366426e05316 URL
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43215... Vendor Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2026-43215 Vendor Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git Product
Internet-facing
14 days
Internal
At next upgrade
- Not known to be exploited
- Needs hands-on effort to exploit
- Gives an attacker full control
Type
CWE-667Improper Locking
CWE-362Race Condition
Timeline
Published7 May 2026
Updated4 Nov 2026
First seen7 May 2026
Sources
DEBIAN-CVE-2026-43215 · OSV
CVE-2026-43215 · NVD
BELL-CVE-2026-43215 · OSV
UBUNTU-CVE-2026-43215 · OSV
CVE-2026-43215 · OSV
CVE-2026-43215 · MITRE
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