CVE-2021-47345
published 2024-05-21CVE-2021-47345: 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()…
PriorityP417medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.26%
17.5th percentile
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
24 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 5.14.6-1 (bookworm) | linux 5.14.6-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= e51060f08a61965c4dd91516d82fe90617152590 < 40b613db3a95bc27998e4097d74c2f7e5d083a0b | 40b613db3a95bc27998e4097d74c2f7e5d083a0b |
| linux | linux | >= e51060f08a61965c4dd91516d82fe90617152590 < e2da8ce2a9543f3ca5c93369bd1fe6eeb572101a | e2da8ce2a9543f3ca5c93369bd1fe6eeb572101a |
| linux | linux | >= e51060f08a61965c4dd91516d82fe90617152590 < e4e062da082a199357ba4911145f331d40139ad8 | e4e062da082a199357ba4911145f331d40139ad8 |
| linux | linux | >= e51060f08a61965c4dd91516d82fe90617152590 < 4893c938f2a140a74be91779e45e4a7fa111198f | 4893c938f2a140a74be91779e45e4a7fa111198f |
| linux | linux | >= e51060f08a61965c4dd91516d82fe90617152590 < 032c68b4f5be128a2167f35b558b7cec88fe4972 | 032c68b4f5be128a2167f35b558b7cec88fe4972 |
| linux | linux | >= e51060f08a61965c4dd91516d82fe90617152590 < 3d08b5917984f737f32d5bee9737b9075c3895c6 | 3d08b5917984f737f32d5bee9737b9075c3895c6 |
| linux | linux | >= e51060f08a61965c4dd91516d82fe90617152590 < f4f553d67236145fa5fd203ed7b35b9377e19939 | f4f553d67236145fa5fd203ed7b35b9377e19939 |
| linux | linux | >= e51060f08a61965c4dd91516d82fe90617152590 < 07583ba2e2d8947c3d365d97608cb436510885ac | 07583ba2e2d8947c3d365d97608cb436510885ac |
| linux | linux | >= e51060f08a61965c4dd91516d82fe90617152590 < 74f160ead74bfe5f2b38afb4fcf86189f9ff40c9 | 74f160ead74bfe5f2b38afb4fcf86189f9ff40c9 |
| linux | linux_kernel | < 4.4.276 | 4.4.276 |
| linux | linux_kernel | >= 0 < 5.10.70-1 | 5.10.70-1 |
| linux | linux_kernel | >= 0 < 5.14.6-1 | 5.14.6-1 |
| linux | linux_kernel | >= 0 < 5.14.6-1 | 5.14.6-1 |
| linux | linux_kernel | >= 0 < 5.14.6-1 | 5.14.6-1 |
| linux | linux_kernel | >= 0 < 4.4.0-272.306 | 4.4.0-272.306 |
| linux | linux_kernel | >= 4.10 < 4.14.240 | 4.14.240 |
| linux | linux_kernel | >= 4.15 < 4.19.198 | 4.19.198 |
| linux | linux_kernel | >= 4.20 < 5.4.133 | 5.4.133 |
| linux | linux_kernel | >= 4.5 < 4.9.276 | 4.9.276 |
| linux | linux_kernel | >= 5.11 < 5.12.18 | 5.12.18 |
| linux | linux_kernel | >= 5.13 < 5.13.3 | 5.13.3 |
| linux | linux_kernel | >= 5.5 < 5.10.51 | 5.10.51 |
CVSS provenance
nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv5.5MEDIUM
vendor_debian5.5MEDIUM
vendor_redhat5.5MEDIUM
vendor_ubuntu5.5MEDIUM
Stop checking back — get the weekly exploitation signal.
Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.
OSV
linux-aws vulnerabilities
osv·2025-09-02·CVSS 5.5
CVE-2024-50051 [MEDIUM] linux-aws vulnerabilities
linux-aws vulnerabilities
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- InfiniBand drivers;
- Media drivers;
- SPI subsystem;
- USB core drivers;
- NILFS2 file system;
- IPv6 networking;
- Network traffic control;
(CVE-2024-50051, CVE-2025-37752, CVE-2024-53130, CVE-2024-47685,
CVE-2024-27074, CVE-2023-52477, CVE-2024-50202, CVE-2021-47345,
CVE-2024-57996, CVE-2024-53131)
OSV
linux, linux-aws, linux-kvm, linux-lts-xenial vulnerabilities
osv·2025-08-28·CVSS 5.5
CVE-2024-50051 [MEDIUM] linux, linux-aws, linux-kvm, linux-lts-xenial vulnerabilities
linux, linux-aws, linux-kvm, linux-lts-xenial vulnerabilities
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- InfiniBand drivers;
- Media drivers;
- SPI subsystem;
- USB core drivers;
- NILFS2 file system;
- IPv6 networking;
- Network traffic control;
(CVE-2024-50051, CVE-2025-37752, CVE-2024-53130, CVE-2024-47685,
CVE-2024-27074, CVE-2023-52477, CVE-2024-50202, CVE-2021-47345,
CVE-2024-57996, CVE-2024-53131)
OSV
linux-fips vulnerabilities
osv·2025-08-28·CVSS 5.5
CVE-2024-50051 [MEDIUM] linux-fips vulnerabilities
linux-fips vulnerabilities
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- InfiniBand drivers;
- Media drivers;
- SPI subsystem;
- USB core drivers;
- NILFS2 file system;
- IPv6 networking;
- Network traffic control;
(CVE-2024-50051, CVE-2025-37752, CVE-2024-53130, CVE-2024-47685,
CVE-2024-27074, CVE-2023-52477, CVE-2024-50202, CVE-2021-47345,
CVE-2024-57996, CVE-2024-53131)
OSV
CVE-2021-47345: 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
osv·2024-05-21·CVSS 5.5
CVE-2021-47345 [MEDIUM] CVE-2021-47345: 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
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.
GHSA
GHSA-pv65-xqrg-hc85: In the Linux kernel, the following vulnerability has been resolved:
RDMA/cma: Fix rdma_resolve_route() memory leak
Fix a memory leak when "mda_resol
ghsa_unreviewed·2024-05-21
CVE-2021-47345 [MEDIUM] CWE-401 GHSA-pv65-xqrg-hc85: In the Linux kernel, the following vulnerability has been resolved:
RDMA/cma: Fix rdma_resolve_route() memory leak
Fix a memory leak when "mda_resol
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.
Ubuntu
Linux kernel (AWS) vulnerabilities
vendor_ubuntu·2025-09-02·CVSS 5.5
CVE-2021-47345 [MEDIUM] Linux kernel (AWS) vulnerabilities
Title: Linux kernel (AWS) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- InfiniBand drivers;
- Media drivers;
- SPI subsystem;
- USB core drivers;
- NILFS2 file system;
- IPv6 networking;
- Network traffic control;
(CVE-2024-50051, CVE-2025-37752, CVE-2024-53130, CVE-2024-47685,
CVE-2024-27074, CVE-2023-52477, CVE-2024-50202, CVE-2021-47345,
CVE-2024-57996, CVE-2024-53131)
Instructions: After a standard system update you need to reboot your computer to make
all the necessary changes.
ATTENTION: Due to an unavoidable ABI change the kernel updates have
been given a new versio
Ubuntu
Linux kernel (FIPS) vulnerabilities
vendor_ubuntu·2025-08-28·CVSS 5.5
CVE-2021-47345 [MEDIUM] Linux kernel (FIPS) vulnerabilities
Title: Linux kernel (FIPS) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- InfiniBand drivers;
- Media drivers;
- SPI subsystem;
- USB core drivers;
- NILFS2 file system;
- IPv6 networking;
- Network traffic control;
(CVE-2024-50051, CVE-2025-37752, CVE-2024-53130, CVE-2024-47685,
CVE-2024-27074, CVE-2023-52477, CVE-2024-50202, CVE-2021-47345,
CVE-2024-57996, CVE-2024-53131)
Instructions: After a standard system update you need to reboot your computer to make
all the necessary changes.
ATTENTION: Due to an unavoidable ABI change the kernel updates have
been given a new versi
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2025-08-28·CVSS 5.5
CVE-2021-47345 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- InfiniBand drivers;
- Media drivers;
- SPI subsystem;
- USB core drivers;
- NILFS2 file system;
- IPv6 networking;
- Network traffic control;
(CVE-2024-50051, CVE-2025-37752, CVE-2024-53130, CVE-2024-47685,
CVE-2024-27074, CVE-2023-52477, CVE-2024-50202, CVE-2021-47345,
CVE-2024-57996, CVE-2024-53131)
Instructions: After a standard system update you need to reboot your computer to make
all the necessary changes.
ATTENTION: Due to an unavoidable ABI change the kernel updates have
been given a new version numb
Red Hat
kernel: RDMA/cma: Fix rdma_resolve_route() memory leak
vendor_redhat·2024-05-21·CVSS 5.5
CVE-2021-47345 [MEDIUM] CWE-402 kernel: RDMA/cma: Fix rdma_resolve_route() memory leak
kernel: RDMA/cma: Fix rdma_resolve_route() memory leak
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.
Package: kernel (Red Hat Enterprise Linux 6) - Not affected
Package: kernel (Red Hat Enterprise Linux 7) - Not affected
Package: kernel-rt (Red Hat Enterprise Linux 7) - Not affected
Package: kernel (Red Hat Enterprise Linux 8) - Not affected
Package: kernel-rt (Red Hat Enterprise Linux 8) - Not affected
Package: kernel (Red Hat Enterprise Linux 9) - Not a
Debian
CVE-2021-47345: linux - In the Linux kernel, the following vulnerability has been resolved: RDMA/cma: F...
vendor_debian·2021·CVSS 5.5
CVE-2021-47345 [MEDIUM] CVE-2021-47345: linux - In the Linux kernel, the following vulnerability has been resolved: RDMA/cma: F...
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.
Scope: local
bookworm: resolved (fixed in 5.14.6-1)
bullseye: resolved (fixed in 5.10.70-1)
forky: resolved (fixed in 5.14.6-1)
sid: resolved (fixed in 5.14.6-1)
trixie: resolved (fixed in 5.14.6-1)
No detection rules found.
No public exploits indexed.
https://git.kernel.org/stable/c/032c68b4f5be128a2167f35b558b7cec88fe4972https://git.kernel.org/stable/c/07583ba2e2d8947c3d365d97608cb436510885achttps://git.kernel.org/stable/c/3d08b5917984f737f32d5bee9737b9075c3895c6https://git.kernel.org/stable/c/40b613db3a95bc27998e4097d74c2f7e5d083a0bhttps://git.kernel.org/stable/c/4893c938f2a140a74be91779e45e4a7fa111198fhttps://git.kernel.org/stable/c/74f160ead74bfe5f2b38afb4fcf86189f9ff40c9https://git.kernel.org/stable/c/e2da8ce2a9543f3ca5c93369bd1fe6eeb572101ahttps://git.kernel.org/stable/c/e4e062da082a199357ba4911145f331d40139ad8https://git.kernel.org/stable/c/f4f553d67236145fa5fd203ed7b35b9377e19939https://git.kernel.org/stable/c/032c68b4f5be128a2167f35b558b7cec88fe4972https://git.kernel.org/stable/c/07583ba2e2d8947c3d365d97608cb436510885achttps://git.kernel.org/stable/c/3d08b5917984f737f32d5bee9737b9075c3895c6https://git.kernel.org/stable/c/40b613db3a95bc27998e4097d74c2f7e5d083a0bhttps://git.kernel.org/stable/c/4893c938f2a140a74be91779e45e4a7fa111198fhttps://git.kernel.org/stable/c/74f160ead74bfe5f2b38afb4fcf86189f9ff40c9https://git.kernel.org/stable/c/e2da8ce2a9543f3ca5c93369bd1fe6eeb572101ahttps://git.kernel.org/stable/c/e4e062da082a199357ba4911145f331d40139ad8https://git.kernel.org/stable/c/f4f553d67236145fa5fd203ed7b35b9377e19939
2024-05-21
Published