Description
In the Linux kernel, the following vulnerability has been resolved:
RDMA/cma: Fix rdma_resolve_route() memory leak
Fix a memory leak when "mda_resolve_route() is called more than once on
the same "rdma_cm_id".
This is possible if cma_query_handler() triggers the
RDMA_CM_EVENT_ROUTE_ERROR flow which puts the state machine back and
allows rdma_resolve_route() to be called again.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Linux | Linux | 2.6.18 | 4.4.276 |
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 | 5.14.6-1 | — |
| Debian 13 | linux | 5.14.6-1 | — |
| Debian 12 | linux | 5.14.6-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | linux-raspi-realtime | No fix yet | — |
| Ubuntu 22.04 LTS | linux-riscv +22 | No fix yet | — |
| Ubuntu 20.04 LTS | linux | 5.4.0-84.94 | — |
| Ubuntu 20.04 LTS | linux-aws | 5.4.0-1056.59 | — |
| Ubuntu 20.04 LTS | linux-azure | 5.4.0-1058.60 | — |
| Ubuntu 20.04 LTS | linux-bluefield | 5.4.0-1019.22 | — |
| Ubuntu 20.04 LTS | linux-gcp | 5.4.0-1052.56 | — |
| Ubuntu 20.04 LTS | linux-gke +26 | No fix yet | — |
| Ubuntu 20.04 LTS | linux-gkeop | 5.4.0-1023.24 | — |
| Ubuntu 20.04 LTS | linux-kvm | 5.4.0-1046.48 | — |
| Ubuntu 20.04 LTS | linux-oracle | 5.4.0-1054.58 | — |
| Ubuntu 20.04 LTS | linux-raspi | 5.4.0-1043.47 | — |
| Ubuntu 18.04 LTS | linux | 4.15.0-156.163 | — |
| Ubuntu 18.04 LTS | linux-aws | 4.15.0-1111.118 | — |
| Ubuntu 18.04 LTS | linux-aws-5.4 | 5.4.0-1056.59~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-azure-4.15 | 4.15.0-1123.136 | — |
| Ubuntu 18.04 LTS | linux-azure-5.4 | 5.4.0-1058.60~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-gcp +14 | No fix yet | — |
| Ubuntu 18.04 LTS | linux-gcp-4.15 | 4.15.0-1108.122 | — |
| Ubuntu 18.04 LTS | linux-gcp-5.4 | 5.4.0-1052.56~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-hwe-5.4 | 5.4.0-84.94~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-kvm | 4.15.0-1099.101 | — |
| Ubuntu 18.04 LTS | linux-oracle | 4.15.0-1080.88 | — |
| Ubuntu 18.04 LTS | linux-oracle-5.4 | 5.4.0-1054.58~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-raspi-5.4 | 5.4.0-1043.47~18.04.1 | — |
| Ubuntu 16.04 LTS | linux-hwe-edge | No fix yet | — |
Show 8 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro FIPS 20.04 LTS | linux-fips +3 | No fix yet | — |
| Ubuntu Pro FIPS 18.04 LTS | linux-fips +3 | No fix yet | — |
| Ubuntu Pro FIPS 16.04 LTS | linux-fips | No fix yet | — |
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-aws-fips | 5.4.0-1069.73+fips2 | — |
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-azure-fips | 5.4.0-1073.76+fips1 | — |
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-fips | 5.4.0-1033.38 | — |
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-gcp-fips | 5.4.0-1067.71~20.04.1 | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-aws-fips | 4.15.0-2053.55 | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-azure-fips | 4.15.0-2035.39 | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-fips | 4.15.0-1069.78 | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-gcp-fips | 4.15.0-2018.20 | — |
| Ubuntu Pro FIPS-updates 16.04 LTS | linux-fips | 4.4.0-1117.124 | USN-7727-2 |
| Ubuntu Pro 16.04 LTS | linux | 4.4.0-272.306 | USN-7727-1 |
| Ubuntu Pro 16.04 LTS | linux-aws | 4.4.0-1185.200 | USN-7727-3 |
| Ubuntu Pro 16.04 LTS | linux-aws-hwe | 4.15.0-1111.118~16.04.1 | — |
| Ubuntu Pro 16.04 LTS | linux-azure | 4.15.0-1123.136~16.04.1 | — |
| Ubuntu Pro 16.04 LTS | linux-gcp | 4.15.0-1108.122~16.04.1 | — |
| Ubuntu Pro 16.04 LTS | linux-hwe | 4.15.0-156.163~16.04.1 | — |
| Ubuntu Pro 16.04 LTS | linux-kvm | 4.4.0-1148.159 | USN-7727-1 |
| Ubuntu Pro 16.04 LTS | linux-oracle | 4.15.0-1080.88~16.04.1 | — |
| Ubuntu Pro 14.04 LTS | linux | No fix yet | — |
| Ubuntu Pro 14.04 LTS | linux-aws | 4.4.0-1147.153 | USN-7727-1 |
| Ubuntu Pro 14.04 LTS | linux-azure | 4.15.0-1123.136~14.04.1 | — |
| Ubuntu Pro 14.04 LTS | linux-lts-xenial | 4.4.0-272.306~14.04.1 | USN-7727-1 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP5 | kernel-azure +2 | 4.12.14-16.188.1 | SUSE-SU-2024:1979-1 |
| SLES 12 SP5 | kernel-docs +4 | 4.12.14-122.219.1 | SUSE-SU-2024:2184-1 |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP5 | kernel-azure +2 | 4.12.14-16.188.1 | SUSE-SU-2024:1979-1 |
| SLES for SAP 12 SP5 | kernel-syms +2 | 4.12.14-122.219.1 | SUSE-SU-2024:2184-1 |
| SLE Real Time 12 SP5 | kernel-rt +3 | 4.12.14-10.188.1 | SUSE-SU-2024:1983-1 |
| SLE Live Patching 12 SP5 | kernel-default | 4.12.14-122.219.1 | SUSE-SU-2024:2184-1 |
| SLE Live Patching 12 SP5 | kgraft-patch-SLE12-SP5_Update_57 | 1-8.3.1 | SUSE-SU-2024:2184-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | kernel-livepatch-4.14.241-184.433 | 1.0-0.amzn2 | ALAS2-2021-1696 |
| Amazon Linux 2 | perf +8 | 4.14.241-184.433.amzn2 | ALAS2-2021-1696 |
Advisories 7
- USN-7727-1 linux, linux-aws, linux-kvm, linux-lts-xenial vulnerabilities Ubuntu Security Notices (USN) · Oct 30, 2026
- USN-7727-2 linux-fips vulnerabilities Ubuntu Security Notices (USN) · Oct 30, 2026
- USN-7727-3 linux-aws vulnerabilities Ubuntu Security Notices (USN) · Oct 30, 2026
- SUSE-SU-2024:1979-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:1983-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:2184-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- ALAS2-2021-1696 Important: kernel security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Oct 2, 2025
References
- https://git.kernel.org/stable/c/40b613db3a95bc27998e4097d74c2f7e5d083a0b
- https://git.kernel.org/stable/c/e2da8ce2a9543f3ca5c93369bd1fe6eeb572101a
- https://git.kernel.org/stable/c/e4e062da082a199357ba4911145f331d40139ad8
- https://git.kernel.org/stable/c/4893c938f2a140a74be91779e45e4a7fa111198f
- https://git.kernel.org/stable/c/032c68b4f5be128a2167f35b558b7cec88fe4972
- https://git.kernel.org/stable/c/3d08b5917984f737f32d5bee9737b9075c3895c6
- https://git.kernel.org/stable/c/f4f553d67236145fa5fd203ed7b35b9377e19939
- https://git.kernel.org/stable/c/07583ba2e2d8947c3d365d97608cb436510885ac
- https://git.kernel.org/stable/c/74f160ead74bfe5f2b38afb4fcf86189f9ff40c9