Unrated severityNVD Advisory· Published May 21, 2024· Updated Dec 18, 2025
RDMA/cma: Fix rdma_resolve_route() memory leak
CVE-2021-47345
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
23- osv-coords22 versionspkg:rpm/suse/kernel-azure&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5pkg:rpm/suse/kernel-azure&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2012%20SP5pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2012%20SP5pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2012%20SP5pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP5pkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP5pkg:rpm/suse/kernel-rt_debug&distro=SUSE%20Linux%20Enterprise%20Real%20Time%2012%20SP5pkg:rpm/suse/kernel-rt&distro=SUSE%20Linux%20Enterprise%20Real%20Time%2012%20SP5pkg:rpm/suse/kernel-source-azure&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5pkg:rpm/suse/kernel-source-azure&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5pkg:rpm/suse/kernel-source-rt&distro=SUSE%20Linux%20Enterprise%20Real%20Time%2012%20SP5pkg:rpm/suse/kernel-syms-azure&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5pkg:rpm/suse/kernel-syms-azure&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5pkg:rpm/suse/kernel-syms-rt&distro=SUSE%20Linux%20Enterprise%20Real%20Time%2012%20SP5pkg:rpm/suse/kgraft-patch-SLE12-SP5_Update_57&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2012%20SP5
< 4.12.14-16.188.1+ 21 more
- (no CPE)range: < 4.12.14-16.188.1
- (no CPE)range: < 4.12.14-16.188.1
- (no CPE)range: < 4.12.14-122.219.1
- (no CPE)range: < 4.12.14-122.219.1
- (no CPE)range: < 4.12.14-122.219.1
- (no CPE)range: < 4.12.14-122.219.1
- (no CPE)range: < 4.12.14-122.219.1
- (no CPE)range: < 4.12.14-122.219.1
- (no CPE)range: < 4.12.14-122.219.1
- (no CPE)range: < 4.12.14-10.188.1
- (no CPE)range: < 4.12.14-10.188.1
- (no CPE)range: < 4.12.14-16.188.1
- (no CPE)range: < 4.12.14-16.188.1
- (no CPE)range: < 4.12.14-122.219.1
- (no CPE)range: < 4.12.14-122.219.1
- (no CPE)range: < 4.12.14-10.188.1
- (no CPE)range: < 4.12.14-16.188.1
- (no CPE)range: < 4.12.14-16.188.1
- (no CPE)range: < 4.12.14-122.219.1
- (no CPE)range: < 4.12.14-122.219.1
- (no CPE)range: < 4.12.14-10.188.1
- (no CPE)range: < 1-8.3.1
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
9- git.kernel.org/stable/c/032c68b4f5be128a2167f35b558b7cec88fe4972mitre
- git.kernel.org/stable/c/07583ba2e2d8947c3d365d97608cb436510885acmitre
- git.kernel.org/stable/c/3d08b5917984f737f32d5bee9737b9075c3895c6mitre
- git.kernel.org/stable/c/40b613db3a95bc27998e4097d74c2f7e5d083a0bmitre
- git.kernel.org/stable/c/4893c938f2a140a74be91779e45e4a7fa111198fmitre
- git.kernel.org/stable/c/74f160ead74bfe5f2b38afb4fcf86189f9ff40c9mitre
- git.kernel.org/stable/c/e2da8ce2a9543f3ca5c93369bd1fe6eeb572101amitre
- git.kernel.org/stable/c/e4e062da082a199357ba4911145f331d40139ad8mitre
- git.kernel.org/stable/c/f4f553d67236145fa5fd203ed7b35b9377e19939mitre
News mentions
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