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5.5
CVE-2022-50138: Linux kernel memory leak in RDMA qedr driver
CVE-2022-50138 · published 1 year ago
Summary
The Linux kernel's RDMA qedr component could leave a small block of memory allocated when certain registration steps fail. Over time this unused memory can accumulate, reducing system performance. Updating the kernel to the latest version resolves the issue by ensuring the leftover memory is properly released.
What to do
- Update canonical linux-lowlatency to version 5.15.0-53.59.
- Update canonical linux-nvidia to version 5.15.0-1015.15.
- Update canonical linux-oracle to version 5.15.0-1022.28.
- Update canonical linux-raspi to version 5.15.0-1018.20.
- Update canonical linux-realtime to version 5.15.0-1025.28.
- Update canonical linux-aws-5.15 to version 5.15.0-1023.27~20.04.1.
- Update canonical linux-azure-5.15 to version 5.15.0-1023.29~20.04.1.
- Update canonical linux-gcp-5.15 to version 5.15.0-1022.29~20.04.1.
- Update canonical linux-hwe-5.15 to version 5.15.0-53.59~20.04.1.
- Update canonical linux-intel-iotg-5.15 to version 5.15.0-1018.23~20.04.1.
- Update canonical linux-lowlatency-hwe-5.15 to version 5.15.0-53.59~20.04.1.
- Update canonical linux-oracle-5.15 to version 5.15.0-1022.28~20.04.1.
- Update canonical linux-riscv-5.15 to version 5.15.0-1023.27~20.04.1.
- Update canonical linux to version 5.15.0-53.59.
- Update canonical linux-aws to version 5.15.0-1023.27.
- Update canonical linux-azure to version 5.15.0-1023.29.
- Update canonical linux-gcp to version 5.15.0-1022.29.
- Update canonical linux-gke to version 5.15.0-1020.25.
- Update canonical linux-gkeop to version 5.15.0-1008.12.
- Update canonical linux-ibm to version 5.15.0-1018.21.
- Update canonical linux-intel-iotg to version 5.15.0-1018.23.
- Update canonical linux-kvm to version 5.15.0-1021.26.
- Update debian linux to version 6.0.2-1.
- Update linux kernel to version 5.19.2.
- Update canonical linux-azure-fde to version 5.15.0-1024.30.1.
Affected software
| Ecosystem | Vendor | Product | Affected versions |
|---|---|---|---|
| – | linux | linux_kernel |
>= 4.9, < 5.10.137 >= 5.11, < 5.15.61 >= 5.16, < 5.18.18 >= 5.19, < 5.19.2 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| Ubuntu:Pro:14.04:LTS | canonical | linux-azure | All versions |
| Ubuntu:Pro:16.04:LTS | canonical | linux-aws-hwe | All versions |
| Ubuntu:Pro:16.04:LTS | canonical | linux-azure | All versions |
| Ubuntu:Pro:16.04:LTS | canonical | linux-gcp | All versions |
| Ubuntu:Pro:16.04:LTS | canonical | linux-hwe | All versions |
| Ubuntu:16.04:LTS | canonical | linux-hwe-edge | All versions |
| Ubuntu:Pro:16.04:LTS | canonical | linux-oracle | All versions |
| Ubuntu:Pro:18.04:LTS | canonical | linux | All versions |
| Ubuntu:Pro:18.04:LTS | canonical | linux-aws | 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:Pro:18.04:LTS | canonical | linux-aws-5.4 | All versions |
| Ubuntu:18.04:LTS | canonical | linux-azure | All versions |
| Ubuntu:Pro:18.04:LTS | canonical | linux-azure-4.15 | All versions |
| Ubuntu:18.04:LTS | canonical | linux-azure-5.3 | All versions |
| Ubuntu:Pro:18.04:LTS | canonical | linux-azure-5.4 | All versions |
| Ubuntu:18.04:LTS | canonical | linux-azure-edge | All versions |
| Ubuntu:22.04:LTS | canonical | linux-lowlatency |
< 5.15.0-53.59 Fix: upgrade to 5.15.0-53.59
|
| 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 |
< 5.15.0-1015.15 Fix: upgrade to 5.15.0-1015.15
|
| 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 |
< 5.15.0-1022.28 Fix: upgrade to 5.15.0-1022.28
|
| Ubuntu:22.04:LTS | canonical | linux-oracle-6.5 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-raspi |
< 5.15.0-1018.20 Fix: upgrade to 5.15.0-1018.20
|
| 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-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:Realtime:22.04:LTS | canonical | linux-realtime |
< 5.15.0-1025.28 Fix: upgrade to 5.15.0-1025.28
|
| 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:18.04:LTS | canonical | linux-gcp | All versions |
| Ubuntu:Pro:18.04:LTS | canonical | linux-gcp-4.15 | All versions |
| Ubuntu:18.04:LTS | canonical | linux-gcp-5.3 | All versions |
| Ubuntu:Pro:18.04:LTS | canonical | linux-gcp-5.4 | 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 |
Showing 50 of 153. Show the rest
| Ecosystem | Vendor | Product | Affected versions |
|---|---|---|---|
| Ubuntu:18.04:LTS | canonical | linux-hwe | All versions |
| Ubuntu:Pro:18.04:LTS | canonical | linux-hwe-5.4 | All versions |
| Ubuntu:18.04:LTS | canonical | linux-hwe-edge | All versions |
| Ubuntu:Pro:18.04:LTS | canonical | linux-ibm-5.4 | All versions |
| Ubuntu:Pro:18.04:LTS | canonical | linux-kvm | All versions |
| Ubuntu:18.04:LTS | canonical | linux-oem | All versions |
| Ubuntu:Pro:18.04:LTS | canonical | linux-oracle | 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:Pro:18.04:LTS | canonical | linux-oracle-5.4 | All versions |
| Ubuntu:Pro:18.04:LTS | canonical | linux-raspi-5.4 | All versions |
| Ubuntu:Pro:FIPS-updates:18.04:LTS | canonical | linux-aws-fips | All versions |
| Ubuntu:Pro:FIPS-updates:18.04:LTS | canonical | linux-azure-fips | All versions |
| Ubuntu:Pro:FIPS-updates:18.04:LTS | canonical | linux-fips | All versions |
| Ubuntu:Pro:FIPS-updates:18.04:LTS | canonical | linux-gcp-fips | All versions |
| Ubuntu:Pro:FIPS:18.04:LTS | canonical | linux-aws-fips | All versions |
| Ubuntu:Pro:FIPS:18.04:LTS | canonical | linux-azure-fips | All versions |
| Ubuntu:Pro:FIPS:18.04:LTS | canonical | linux-fips | All versions |
| Ubuntu:Pro:FIPS:18.04:LTS | canonical | linux-gcp-fips | All versions |
| Ubuntu:20.04:LTS | canonical | linux-aws-5.15 |
< 5.15.0-1023.27~20.04.1 Fix: upgrade to 5.15.0-1023.27~20.04.1
|
| Ubuntu:20.04:LTS | canonical | linux-azure-5.15 |
< 5.15.0-1023.29~20.04.1 Fix: upgrade to 5.15.0-1023.29~20.04.1
|
| Ubuntu:20.04:LTS | canonical | linux-gcp-5.15 |
< 5.15.0-1022.29~20.04.1 Fix: upgrade to 5.15.0-1022.29~20.04.1
|
| Ubuntu:20.04:LTS | canonical | linux-hwe-5.15 |
< 5.15.0-53.59~20.04.1 Fix: upgrade to 5.15.0-53.59~20.04.1
|
| Ubuntu:20.04:LTS | canonical | linux-intel-iotg-5.15 |
< 5.15.0-1018.23~20.04.1 Fix: upgrade to 5.15.0-1018.23~20.04.1
|
| Ubuntu:20.04:LTS | canonical | linux-lowlatency-hwe-5.15 |
< 5.15.0-53.59~20.04.1 Fix: upgrade to 5.15.0-53.59~20.04.1
|
| Ubuntu:20.04:LTS | canonical | linux-oracle-5.15 |
< 5.15.0-1022.28~20.04.1 Fix: upgrade to 5.15.0-1022.28~20.04.1
|
| Ubuntu:20.04:LTS | canonical | linux-riscv-5.15 |
< 5.15.0-1023.27~20.04.1 Fix: upgrade to 5.15.0-1023.27~20.04.1
|
| Ubuntu:Pro:20.04:LTS | canonical | linux | All versions |
| Ubuntu:Pro:20.04:LTS | canonical | linux-aws | 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:Pro:20.04:LTS | canonical | linux-azure | 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 |
| Ubuntu:Pro:20.04:LTS | canonical | linux-bluefield | All versions |
| Ubuntu:Pro:20.04:LTS | canonical | linux-gcp | 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:Pro:20.04:LTS | canonical | linux-ibm | All versions |
| Ubuntu:20.04:LTS | canonical | linux-intel-5.13 | All versions |
| Ubuntu:Pro:20.04:LTS | canonical | linux-iot | All versions |
| Ubuntu:Pro:20.04:LTS | canonical | linux-kvm | 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:Pro:20.04:LTS | canonical | linux-oracle | 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:Pro:20.04:LTS | canonical | linux-raspi | 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:20.04:LTS | canonical | linux-xilinx-zynqmp | All versions |
| Ubuntu:Pro:FIPS-updates:20.04:LTS | canonical | linux-aws-fips | All versions |
| Ubuntu:Pro:FIPS-updates:20.04:LTS | canonical | linux-azure-fips | All versions |
| Ubuntu:Pro:FIPS-updates:20.04:LTS | canonical | linux-fips | All versions |
| Ubuntu:Pro:FIPS-updates:20.04:LTS | canonical | linux-gcp-fips | All versions |
| 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 |
< 5.15.0-53.59 Fix: upgrade to 5.15.0-53.59
|
| Ubuntu:22.04:LTS | canonical | linux-allwinner-5.19 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-aws |
< 5.15.0-1023.27 Fix: upgrade to 5.15.0-1023.27
|
| 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 |
< 5.15.0-1023.29 Fix: upgrade to 5.15.0-1023.29
|
| 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 |
< 5.15.0-1024.30.1 Fix: upgrade to 5.15.0-1024.30.1
|
| 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 |
< 5.15.0-1022.29 Fix: upgrade to 5.15.0-1022.29
|
| 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 |
< 5.15.0-1020.25 Fix: upgrade to 5.15.0-1020.25
|
| Ubuntu:22.04:LTS | canonical | linux-gkeop |
< 5.15.0-1008.12 Fix: upgrade to 5.15.0-1008.12
|
| 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 |
< 5.15.0-1018.21 Fix: upgrade to 5.15.0-1018.21
|
| Ubuntu:22.04:LTS | canonical | linux-intel-iot-realtime | All versions |
| Ubuntu:22.04:LTS | canonical | linux-intel-iotg |
< 5.15.0-1018.23 Fix: upgrade to 5.15.0-1018.23
|
| Ubuntu:22.04:LTS | canonical | linux-kvm |
< 5.15.0-1021.26 Fix: upgrade to 5.15.0-1021.26
|
| Debian:12 | debian | linux |
< 6.0.2-1 Fix: upgrade to 6.0.2-1
|
| Linux | linux | kernel |
>= 5.19.0, < 5.19.2 Fix: upgrade to 5.19.2
|
Original advisory text
RDMA/qedr: Fix potential memory leak in __qedr_alloc_mr()
In the Linux kernel, the following vulnerability has been resolved: RDMA/qedr: Fix potential memory leak in __qedr_alloc_mr() __qedr_alloc_mr() allocates a memory chunk for "mr->info.pbl_table" with init_mr_info(). When rdma_alloc_tid() and rdma_register_tid() fail, "mr" is released while "mr->info.pbl_table" is not released, which will lead to a memory leak. We should release the "mr->info.pbl_table" with qedr_free_pbl() when error occurs to fix the memory leak.
References
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git Product
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50138... Vendor Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2022-50138 Vendor Advisory
- https://git.kernel.org/stable/c/07ba048df306dc93fc4d2ef670b9e24644a2069f Third Party Advisory
- https://git.kernel.org/stable/c/79ce50dddaf28b5c57911ecc80a2be17a0b17f83 Third Party Advisory
- https://git.kernel.org/stable/c/7e647a8d5fc0a2c8e0f36f585a6388286a25bb15 Third Party Advisory
- https://ubuntu.com/security/CVE-2022-50138 Third Party Advisory
- https://git.kernel.org/stable/c/b3236a64ddd125a455ef5b5316c1b9051b732974 Third Party Advisory
- https://git.kernel.org/stable/c/b4c9f7db9f0148423557539af0fdf513338efe08 Third Party Advisory
- https://security-tracker.debian.org/tracker/CVE-2022-50138 Vendor Advisory
- https://www.cve.org/CVERecord?id=CVE-2022-50138 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
Published18 Jun 2025
Updated4 Nov 2026
First seen7 Mar 2026
Sources
CVE-2022-50138 · NVD
CVE-2022-50138 · OSV
UBUNTU-CVE-2022-50138 · OSV
DEBIAN-CVE-2022-50138 · OSV
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