CVE-2021-47345: RDMA/cma: Fix rdma_resolve_route() memory leak
First published: Tue May 21 2024(Updated: )
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.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Linux kernel | <4.4.276 | |
| Linux Linux kernel | >=4.5<4.9.276 | |
| Linux Linux kernel | >=4.10<4.14.240 | |
| Linux Linux kernel | >=4.15<4.19.198 | |
| Linux Linux kernel | >=4.20<5.4.133 | |
| Linux Linux kernel | >=5.5<5.10.51 | |
| Linux Linux kernel | >=5.11<5.12.18 | |
| Linux Linux kernel | >=5.13<5.13.3 |
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Reference Links
- 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
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