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5.5
CVE-2022-49836: Linux kernel may leak memory in siox device add
CVE-2022-49836 · published 1 year ago
Summary
The Linux kernel's siox driver could retain memory if a device fails to register, leading to a small memory waste. This occurs because the allocated device name isn’t released during the error handling. Updating the kernel to the latest version supplied by your Linux distribution will apply the fix and prevent the leak.
What to do
- Update canonical linux-aws-5.4 to version 5.4.0-1097.105~18.04.1.
- Update canonical linux-azure-5.4 to version 5.4.0-1104.110~18.04.1.
- Update canonical linux-gcp-5.4 to version 5.4.0-1101.110~18.04.1.
- Update canonical linux-hwe-5.4 to version 5.4.0-144.161~18.04.1.
- Update canonical linux-ibm-5.4 to version 5.4.0-1045.50~18.04.1.
- Update canonical linux-oracle-5.4 to version 5.4.0-1094.103~18.04.1.
- Update canonical linux-raspi-5.4 to version 5.4.0-1081.92~18.04.1.
- Update canonical linux to version 5.4.0-144.161.
- Update canonical linux-aws to version 5.4.0-1097.105.
- Update canonical linux-aws-5.15 to version 5.15.0-1031.35~20.04.1.
- Update canonical linux-azure to version 5.4.0-1104.110.
- Update canonical linux-azure-5.15 to version 5.15.0-1034.41~20.04.1.
- Update canonical linux-bluefield to version 5.4.0-1059.65.
- Update canonical linux-gcp to version 5.4.0-1101.110.
- Update canonical linux-gcp-5.15 to version 5.15.0-1030.37~20.04.1.
- Update canonical linux-hwe-5.15 to version 5.15.0-67.74~20.04.1.
- Update canonical linux-ibm to version 5.4.0-1045.50.
- Update canonical linux-intel-iotg-5.15 to version 5.15.0-1026.31~20.04.1.
- Update canonical linux-iot to version 5.4.0-1013.15.
- Update canonical linux-kvm to version 5.4.0-1087.93.
- Update canonical linux-lowlatency-hwe-5.15 to version 5.15.0-67.74~20.04.1.
- Update canonical linux-nvidia-tegra-5.15 to version 5.15.0-1014.14~20.04.1.
- Update canonical linux-oracle to version 5.4.0-1094.103.
- Update canonical linux-oracle-5.15 to version 5.15.0-1030.36~20.04.1.
- Update canonical linux-raspi to version 5.4.0-1081.92.
- Update canonical linux-riscv-5.15 to version 5.15.0-1030.34~20.04.1.
- Update canonical linux-xilinx-zynqmp to version 5.4.0-1022.26.
- Update canonical linux-aws-fips to version 5.4.0-1099.107+fips1.
- Update canonical linux-azure-fips to version 5.4.0-1104.110+fips1.
- Update canonical linux-fips to version 5.4.0-1073.82.
- Update canonical linux-gcp-fips to version 5.4.0-1101.110+fips1.
- Update canonical linux to version 5.15.0-67.74.
- Update canonical linux-aws to version 5.15.0-1031.35.
- Update canonical linux-azure to version 5.15.0-1034.41.
- Update canonical linux-gcp to version 5.15.0-1030.37.
- Update canonical linux-gke to version 5.15.0-1028.33.
- Update canonical linux-gkeop to version 5.15.0-1016.21.
- Update canonical linux-ibm to version 5.15.0-1026.29.
- Update canonical linux-intel-iotg to version 5.15.0-1026.31.
- Update canonical linux-kvm to version 5.15.0-1029.34.
- Update canonical linux-lowlatency to version 5.15.0-67.74.
- Update canonical linux-nvidia to version 5.15.0-1023.23.
- Update canonical linux-oracle to version 5.15.0-1030.36.
- Update canonical linux-raspi to version 5.15.0-1025.27.
- Update canonical linux-bluefield to version 5.15.0-1014.16.
- Update canonical linux-intel-iot-realtime to version 5.15.0-1022.27.
- Update canonical linux-realtime to version 5.15.0-1033.36.
- Update canonical linux-azure-fde to version 5.15.0-1034.41.1.
- Update debian linux to version 6.0.10-1.
- Update linux kernel to version 6.0.10.
Affected software
| Ecosystem | Vendor | Product | Affected versions |
|---|---|---|---|
| – | linux | linux_kernel |
>= 4.16, < 4.19.267 >= 4.20, < 5.4.225 >= 5.5, < 5.10.156 >= 5.11, < 5.15.80 >= 5.16, < 6.0.10 6.1 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| Ubuntu:16.04:LTS | canonical | linux-hwe-edge | All versions |
| Ubuntu:18.04:LTS | canonical | linux-aws-5.4 |
< 5.4.0-1097.105~18.04.1 Fix: upgrade to 5.4.0-1097.105~18.04.1
|
| Ubuntu:18.04:LTS | canonical | linux-azure-5.4 |
< 5.4.0-1104.110~18.04.1 Fix: upgrade to 5.4.0-1104.110~18.04.1
|
| Ubuntu:18.04:LTS | canonical | linux-gcp-5.4 |
< 5.4.0-1101.110~18.04.1 Fix: upgrade to 5.4.0-1101.110~18.04.1
|
| Ubuntu:18.04:LTS | canonical | linux-hwe-5.4 |
< 5.4.0-144.161~18.04.1 Fix: upgrade to 5.4.0-144.161~18.04.1
|
| Ubuntu:18.04:LTS | canonical | linux-ibm-5.4 |
< 5.4.0-1045.50~18.04.1 Fix: upgrade to 5.4.0-1045.50~18.04.1
|
| Ubuntu:18.04:LTS | canonical | linux-oracle-5.4 |
< 5.4.0-1094.103~18.04.1 Fix: upgrade to 5.4.0-1094.103~18.04.1
|
| Ubuntu:18.04:LTS | canonical | linux-raspi-5.4 |
< 5.4.0-1081.92~18.04.1 Fix: upgrade to 5.4.0-1081.92~18.04.1
|
| 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-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 |
< 5.4.0-144.161 Fix: upgrade to 5.4.0-144.161
|
| Ubuntu:20.04:LTS | canonical | linux-aws |
< 5.4.0-1097.105 Fix: upgrade to 5.4.0-1097.105
|
| Ubuntu:20.04:LTS | canonical | linux-aws-5.15 |
< 5.15.0-1031.35~20.04.1 Fix: upgrade to 5.15.0-1031.35~20.04.1
|
| Ubuntu:20.04:LTS | canonical | linux-azure |
< 5.4.0-1104.110 Fix: upgrade to 5.4.0-1104.110
|
| Ubuntu:20.04:LTS | canonical | linux-azure-5.15 |
< 5.15.0-1034.41~20.04.1 Fix: upgrade to 5.15.0-1034.41~20.04.1
|
| Ubuntu:20.04:LTS | canonical | linux-bluefield |
< 5.4.0-1059.65 Fix: upgrade to 5.4.0-1059.65
|
| Ubuntu:20.04:LTS | canonical | linux-gcp |
< 5.4.0-1101.110 Fix: upgrade to 5.4.0-1101.110
|
| Ubuntu:20.04:LTS | canonical | linux-gcp-5.15 |
< 5.15.0-1030.37~20.04.1 Fix: upgrade to 5.15.0-1030.37~20.04.1
|
| Ubuntu:20.04:LTS | canonical | linux-hwe-5.15 |
< 5.15.0-67.74~20.04.1 Fix: upgrade to 5.15.0-67.74~20.04.1
|
| Ubuntu:20.04:LTS | canonical | linux-ibm |
< 5.4.0-1045.50 Fix: upgrade to 5.4.0-1045.50
|
| Ubuntu:20.04:LTS | canonical | linux-intel-iotg-5.15 |
< 5.15.0-1026.31~20.04.1 Fix: upgrade to 5.15.0-1026.31~20.04.1
|
| Ubuntu:20.04:LTS | canonical | linux-iot |
< 5.4.0-1013.15 Fix: upgrade to 5.4.0-1013.15
|
| Ubuntu:20.04:LTS | canonical | linux-kvm |
< 5.4.0-1087.93 Fix: upgrade to 5.4.0-1087.93
|
| Ubuntu:20.04:LTS | canonical | linux-lowlatency-hwe-5.15 |
< 5.15.0-67.74~20.04.1 Fix: upgrade to 5.15.0-67.74~20.04.1
|
| Ubuntu:20.04:LTS | canonical | linux-nvidia-tegra-5.15 |
< 5.15.0-1014.14~20.04.1 Fix: upgrade to 5.15.0-1014.14~20.04.1
|
| Ubuntu:20.04:LTS | canonical | linux-oracle |
< 5.4.0-1094.103 Fix: upgrade to 5.4.0-1094.103
|
| Ubuntu:20.04:LTS | canonical | linux-oracle-5.15 |
< 5.15.0-1030.36~20.04.1 Fix: upgrade to 5.15.0-1030.36~20.04.1
|
| Ubuntu:20.04:LTS | canonical | linux-raspi |
< 5.4.0-1081.92 Fix: upgrade to 5.4.0-1081.92
|
| Ubuntu:20.04:LTS | canonical | linux-riscv-5.15 |
< 5.15.0-1030.34~20.04.1 Fix: upgrade to 5.15.0-1030.34~20.04.1
|
| Ubuntu:20.04:LTS | canonical | linux-xilinx-zynqmp |
< 5.4.0-1022.26 Fix: upgrade to 5.4.0-1022.26
|
| 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:20.04:LTS | canonical | linux-azure-5.8 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-azure-fde | All versions |
Showing 50 of 131. Show the rest
| Ecosystem | Vendor | Product | Affected 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:Pro:FIPS-updates:20.04:LTS | canonical | linux-aws-fips |
< 5.4.0-1099.107+fips1 Fix: upgrade to 5.4.0-1099.107+fips1
|
| Ubuntu:Pro:FIPS-updates:20.04:LTS | canonical | linux-azure-fips |
< 5.4.0-1104.110+fips1 Fix: upgrade to 5.4.0-1104.110+fips1
|
| Ubuntu:Pro:FIPS-updates:20.04:LTS | canonical | linux-fips |
< 5.4.0-1073.82 Fix: upgrade to 5.4.0-1073.82
|
| Ubuntu:Pro:FIPS-updates:20.04:LTS | canonical | linux-gcp-fips |
< 5.4.0-1101.110+fips1 Fix: upgrade to 5.4.0-1101.110+fips1
|
| Ubuntu:Pro:FIPS:20.04:LTS | canonical | linux-aws-fips | All versions |
| Ubuntu:Pro:FIPS:20.04:LTS | canonical | linux-azure-fips | All versions |
| Ubuntu:Pro:FIPS:20.04:LTS | canonical | linux-fips | All versions |
| Ubuntu:Pro:FIPS:20.04:LTS | canonical | linux-gcp-fips | All versions |
| Ubuntu:22.04:LTS | canonical | linux |
< 5.15.0-67.74 Fix: upgrade to 5.15.0-67.74
|
| Ubuntu:22.04:LTS | canonical | linux-allwinner-5.19 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-aws |
< 5.15.0-1031.35 Fix: upgrade to 5.15.0-1031.35
|
| Ubuntu:22.04:LTS | canonical | linux-aws-5.19 | All 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-azure |
< 5.15.0-1034.41 Fix: upgrade to 5.15.0-1034.41
|
| 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-fde-5.19 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-azure-fde-6.2 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-gcp |
< 5.15.0-1030.37 Fix: upgrade to 5.15.0-1030.37
|
| 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-gke |
< 5.15.0-1028.33 Fix: upgrade to 5.15.0-1028.33
|
| Ubuntu:22.04:LTS | canonical | linux-gkeop |
< 5.15.0-1016.21 Fix: upgrade to 5.15.0-1016.21
|
| 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-ibm |
< 5.15.0-1026.29 Fix: upgrade to 5.15.0-1026.29
|
| Ubuntu:22.04:LTS | canonical | linux-intel-iotg |
< 5.15.0-1026.31 Fix: upgrade to 5.15.0-1026.31
|
| Ubuntu:22.04:LTS | canonical | linux-kvm |
< 5.15.0-1029.34 Fix: upgrade to 5.15.0-1029.34
|
| Ubuntu:22.04:LTS | canonical | linux-lowlatency |
< 5.15.0-67.74 Fix: upgrade to 5.15.0-67.74
|
| 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-nvidia |
< 5.15.0-1023.23 Fix: upgrade to 5.15.0-1023.23
|
| 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-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 |
< 5.15.0-1030.36 Fix: upgrade to 5.15.0-1030.36
|
| Ubuntu:22.04:LTS | canonical | linux-oracle-6.5 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-raspi |
< 5.15.0-1025.27 Fix: upgrade to 5.15.0-1025.27
|
| Ubuntu:22.04:LTS | canonical | linux-realtime | 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-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:Nvidia-BlueField:22.04:LTS | canonical | linux-bluefield |
< 5.15.0-1014.16 Fix: upgrade to 5.15.0-1014.16
|
| Ubuntu:Pro:Realtime:22.04:LTS | canonical | linux-intel-iot-realtime |
< 5.15.0-1022.27 Fix: upgrade to 5.15.0-1022.27
|
| Ubuntu:Pro:Realtime:22.04:LTS | canonical | linux-realtime |
< 5.15.0-1033.36 Fix: upgrade to 5.15.0-1033.36
|
| Ubuntu:24.04:LTS | canonical | linux-raspi-realtime | All versions |
| Ubuntu:22.04:LTS | canonical | linux-azure-fde |
< 5.15.0-1034.41.1 Fix: upgrade to 5.15.0-1034.41.1
|
| Debian:12 | debian | linux |
< 6.0.10-1 Fix: upgrade to 6.0.10-1
|
| Linux | linux | kernel |
>= 5.16.0, < 6.0.10 Fix: upgrade to 6.0.10
|
Original advisory text
siox: fix possible memory leak in siox_device_add()
In the Linux kernel, the following vulnerability has been resolved: siox: fix possible memory leak in siox_device_add() If device_register() returns error in siox_device_add(), the name allocated by dev_set_name() need be freed. As comment of device_register() says, it should use put_device() to give up the reference in the error path. So fix this by calling put_device(), then the name can be freed in kobject_cleanup(), and sdevice is freed in siox_device_release(), set it to null in error path.
References
- https://git.kernel.org/stable/c/5d03c2911c529ea4d6ebfec53425f1091e8d402b Third Party Advisory
- https://ubuntu.com/security/CVE-2022-49836 Third Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2022-49836 Third Party Advisory
- https://git.kernel.org/linus/6e63153db50059fb78b8a8447b132664887d24e3 Third Party Advisory
- https://git.kernel.org/stable/c/0a5da069603ecc3d7aa09167450235462adaa295 Third Party Advisory
- https://git.kernel.org/stable/c/6e63153db50059fb78b8a8447b132664887d24e3 Third Party Advisory
- https://git.kernel.org/stable/c/a4b5423f88a17a36550ae8c16c46779b1ee42f4b Third Party Advisory
- https://git.kernel.org/stable/c/d9c31e728843259209fb530c59995e4fe262699f Third Party Advisory
- https://security-tracker.debian.org/tracker/CVE-2022-49836 Vendor Advisory
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49836... Vendor Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2022-49836 Vendor Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git Product
- https://git.kernel.org/stable/c/f9fe7ba4ea5b24ffdf8e125f660aca3ba4a147fb Third Party Advisory
Internet-facing
60 days
Internal
At next upgrade
- Not known to be exploited
- Needs hands-on effort to exploit (estimated)
- Gives an attacker partial control (estimated)
Type
CWE-401Memory Leak
Timeline
Published1 May 2025
Updated3 Nov 2026
First seen7 Mar 2026
Sources
CVE-2022-49836 · NVD
UBUNTU-CVE-2022-49836 · OSV
DEBIAN-CVE-2022-49836 · OSV
CVE-2022-49836 · OSV
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