High severity7.8NVD Advisory· Published Jun 19, 2024· Updated Aug 4, 2026

CVE-2021-47616

Description

In the Linux kernel, the following vulnerability has been resolved:

RDMA: Fix use-after-free in rxe_queue_cleanup

On error handling path in rxe_qp_from_init() qp->sq.queue is freed and then rxe_create_qp() will drop last reference to this object. qp clean up function will try to free this queue one time and it causes UAF bug.

Fix it by zeroing queue pointer after freeing queue in rxe_qp_from_init().

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

osv-coords95 versions
pkg:rpm/suse/kernel-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP5 pkg:rpm/suse/kernel-rt&distro=SUSE%20Linux%20Enterprise%20Micro%205.5 pkg:rpm/suse/kernel-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP5 pkg:rpm/suse/kernel-rt_debug&distro=SUSE%20Real%20Time%20Module%2015%20SP5 pkg:rpm/opensuse/kernel-rt_debug&distro=openSUSE%20Leap%2015.5 pkg:rpm/opensuse/kernel-source-rt&distro=openSUSE%20Leap%2015.5 pkg:rpm/opensuse/kernel-syms-rt&distro=openSUSE%20Leap%2015.5 pkg:rpm/suse/kernel-default&distro=SUSE%20Manager%20Proxy%204.3 pkg:rpm/opensuse/kernel-default-base&distro=openSUSE%20Leap%20Micro%205.5 pkg:rpm/opensuse/dtb-aarch64&distro=openSUSE%20Leap%2015.5 pkg:rpm/opensuse/kernel-64kb&distro=openSUSE%20Leap%2015.5 pkg:rpm/opensuse/kernel-syms&distro=openSUSE%20Leap%2015.5 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Micro%205.5 pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20Micro%205.5 pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP5 pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP5 pkg:rpm/suse/kernel-zfcpdump&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP5 pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP5 pkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP5 pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP5 pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP5 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Legacy%2015%20SP5 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP5 pkg:rpm/suse/kernel-livepatch-SLE15-SP5_Update_17&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP5 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2015%20SP5 pkg:rpm/opensuse/kernel-debug&distro=openSUSE%20Leap%2015.5 pkg:rpm/opensuse/kernel-default&distro=openSUSE%20Leap%2015.5 pkg:rpm/opensuse/kernel-default-base&distro=openSUSE%20Leap%2015.5 pkg:rpm/opensuse/kernel-docs&distro=openSUSE%20Leap%2015.5 pkg:rpm/opensuse/kernel-kvmsmall&distro=openSUSE%20Leap%2015.5 pkg:rpm/opensuse/kernel-zfcpdump&distro=openSUSE%20Leap%2015.5 pkg:rpm/suse/kernel-source-rt&distro=SUSE%20Linux%20Enterprise%20Micro%205.3 pkg:rpm/suse/kernel-rt&distro=SUSE%20Linux%20Enterprise%20Micro%205.4 pkg:rpm/suse/kernel-source-rt&distro=SUSE%20Linux%20Enterprise%20Micro%205.4 pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20Micro%205.4 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP4 pkg:rpm/suse/kernel-livepatch-SLE15-SP4_Update_29&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP4 pkg:rpm/suse/kernel-64kb&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-LTSS pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-LTSS pkg:rpm/suse/kernel-64kb&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP4-LTSS pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP4 pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP4 pkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP4 pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP4 pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP4 pkg:rpm/suse/kernel-64kb&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP5 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2015%20SP5 pkg:rpm/opensuse/kernel-default&distro=openSUSE%20Leap%20Micro%205.5 pkg:rpm/opensuse/kernel-obs-qa&distro=openSUSE%20Leap%2015.5 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP5 pkg:rpm/opensuse/kernel-source&distro=openSUSE%20Leap%2015.5 pkg:rpm/opensuse/kernel-obs-build&distro=openSUSE%20Leap%2015.5 pkg:rpm/suse/kernel-source-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP5 pkg:rpm/suse/kernel-syms-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP5 pkg:rpm/opensuse/kernel-rt&distro=openSUSE%20Leap%2015.5 pkg:rpm/suse/kernel-source-rt&distro=SUSE%20Linux%20Enterprise%20Micro%205.5 pkg:rpm/suse/kernel-livepatch-SLE15-SP5-RT_Update_17&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP5 pkg:rpm/suse/kernel-syms&distro=SUSE%20Manager%20Server%204.3 pkg:rpm/suse/kernel-zfcpdump&distro=SUSE%20Manager%20Server%204.3 pkg:rpm/suse/kernel-source-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP5 pkg:rpm/suse/kernel-syms-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP5 pkg:rpm/opensuse/kernel-azure&distro=openSUSE%20Leap%2015.5 pkg:rpm/opensuse/kernel-source-azure&distro=openSUSE%20Leap%2015.5 pkg:rpm/opensuse/kernel-syms-azure&distro=openSUSE%20Leap%2015.5 pkg:rpm/suse/kernel-rt&distro=SUSE%20Linux%20Enterprise%20Micro%205.3 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Micro%205.3 pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20Micro%205.3 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Micro%205.4 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2015%20SP4 pkg:rpm/suse/kernel-64kb&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-ESPOS pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-ESPOS pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-ESPOS pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-ESPOS pkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-ESPOS pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-ESPOS pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-ESPOS pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-LTSS pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-LTSS pkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-LTSS pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-LTSS pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-LTSS pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP4-LTSS pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP4-LTSS pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP4-LTSS pkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP4-LTSS pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP4-LTSS pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP4-LTSS pkg:rpm/suse/kernel-zfcpdump&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP4-LTSS pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP4 pkg:rpm/suse/kernel-default-base&distro=SUSE%20Manager%20Proxy%204.3 pkg:rpm/suse/kernel-source&distro=SUSE%20Manager%20Proxy%204.3 pkg:rpm/suse/kernel-syms&distro=SUSE%20Manager%20Proxy%204.3 pkg:rpm/suse/kernel-default&distro=SUSE%20Manager%20Server%204.3 pkg:rpm/suse/kernel-default-base&distro=SUSE%20Manager%20Server%204.3 pkg:rpm/suse/kernel-source&distro=SUSE%20Manager%20Server%204.3
< 5.14.21-150500.33.60.1+ 94 more
- (no CPE)range: < 5.14.21-150500.33.60.1
- (no CPE)range: < 5.14.21-150500.13.61.1
- (no CPE)range: < 5.14.21-150500.13.61.1
- (no CPE)range: < 5.14.21-150500.13.61.1
- (no CPE)range: < 5.14.21-150500.13.61.1
- (no CPE)range: < 5.14.21-150500.13.61.1
- (no CPE)range: < 5.14.21-150500.13.61.1
- (no CPE)range: < 5.14.21-150400.24.128.1
- (no CPE)range: < 5.14.21-150500.55.73.1.150500.6.33.8
- (no CPE)range: < 5.14.21-150500.55.73.1
- (no CPE)range: < 5.14.21-150500.55.73.1
- (no CPE)range: < 5.14.21-150500.55.73.1
- (no CPE)range: < 5.14.21-150500.55.73.1
- (no CPE)range: < 5.14.21-150500.55.73.1.150500.6.33.8
- (no CPE)range: < 5.14.21-150500.55.73.1.150500.6.33.8
- (no CPE)range: < 5.14.21-150500.55.73.1
- (no CPE)range: < 5.14.21-150500.55.73.1
- (no CPE)range: < 5.14.21-150500.55.73.2
- (no CPE)range: < 5.14.21-150500.55.73.1
- (no CPE)range: < 5.14.21-150500.55.73.1
- (no CPE)range: < 5.14.21-150500.55.73.1
- (no CPE)range: < 5.14.21-150500.55.73.1
- (no CPE)range: < 5.14.21-150500.55.73.1
- (no CPE)range: < 1-150500.11.3.1
- (no CPE)range: < 5.14.21-150500.55.73.1
- (no CPE)range: < 5.14.21-150500.55.73.1
- (no CPE)range: < 5.14.21-150500.55.73.1
- (no CPE)range: < 5.14.21-150500.55.73.1.150500.6.33.8
- (no CPE)range: < 5.14.21-150500.55.73.2
- (no CPE)range: < 5.14.21-150500.55.73.1
- (no CPE)range: < 5.14.21-150500.55.73.1
- (no CPE)range: < 5.14.21-150400.15.88.1
- (no CPE)range: < 5.14.21-150400.15.88.1
- (no CPE)range: < 5.14.21-150400.15.88.1
- (no CPE)range: < 5.14.21-150400.24.128.1.150400.24.62.1
- (no CPE)range: < 5.14.21-150400.24.128.1
- (no CPE)range: < 1-150400.9.3.1
- (no CPE)range: < 5.14.21-150400.24.128.1
- (no CPE)range: < 5.14.21-150400.24.128.1
- (no CPE)range: < 5.14.21-150400.24.128.1
- (no CPE)range: < 5.14.21-150400.24.128.1.150400.24.62.1
- (no CPE)range: < 5.14.21-150400.24.128.1
- (no CPE)range: < 5.14.21-150400.24.128.1
- (no CPE)range: < 5.14.21-150400.24.128.1
- (no CPE)range: < 5.14.21-150400.24.128.1
- (no CPE)range: < 5.14.21-150500.55.73.1
- (no CPE)range: < 5.14.21-150500.55.73.1
- (no CPE)range: < 5.14.21-150500.55.73.1
- (no CPE)range: < 5.14.21-150500.55.73.1
- (no CPE)range: < 5.14.21-150500.55.73.1
- (no CPE)range: < 5.14.21-150500.55.73.1
- (no CPE)range: < 5.14.21-150500.55.73.1
- (no CPE)range: < 5.14.21-150500.13.61.1
- (no CPE)range: < 5.14.21-150500.13.61.1
- (no CPE)range: < 5.14.21-150500.13.61.1
- (no CPE)range: < 5.14.21-150500.13.61.1
- (no CPE)range: < 1-150500.11.3.1
- (no CPE)range: < 5.14.21-150400.24.128.1
- (no CPE)range: < 5.14.21-150400.24.128.1
- (no CPE)range: < 5.14.21-150500.33.60.1
- (no CPE)range: < 5.14.21-150500.33.60.1
- (no CPE)range: < 5.14.21-150500.33.60.1
- (no CPE)range: < 5.14.21-150500.33.60.1
- (no CPE)range: < 5.14.21-150500.33.60.1
- (no CPE)range: < 5.14.21-150400.15.88.1
- (no CPE)range: < 5.14.21-150400.24.128.1
- (no CPE)range: < 5.14.21-150400.24.128.1.150400.24.62.1
- (no CPE)range: < 5.14.21-150400.24.128.1
- (no CPE)range: < 5.14.21-150400.24.128.1
- (no CPE)range: < 5.14.21-150400.24.128.1
- (no CPE)range: < 5.14.21-150400.24.128.1
- (no CPE)range: < 5.14.21-150400.24.128.1.150400.24.62.1
- (no CPE)range: < 5.14.21-150400.24.128.1
- (no CPE)range: < 5.14.21-150400.24.128.1
- (no CPE)range: < 5.14.21-150400.24.128.1
- (no CPE)range: < 5.14.21-150400.24.128.1
- (no CPE)range: < 5.14.21-150400.24.128.1.150400.24.62.1
- (no CPE)range: < 5.14.21-150400.24.128.1
- (no CPE)range: < 5.14.21-150400.24.128.1
- (no CPE)range: < 5.14.21-150400.24.128.1
- (no CPE)range: < 5.14.21-150400.24.128.1
- (no CPE)range: < 5.14.21-150400.24.128.1
- (no CPE)range: < 5.14.21-150400.24.128.1.150400.24.62.1
- (no CPE)range: < 5.14.21-150400.24.128.1
- (no CPE)range: < 5.14.21-150400.24.128.1
- (no CPE)range: < 5.14.21-150400.24.128.1
- (no CPE)range: < 5.14.21-150400.24.128.1
- (no CPE)range: < 5.14.21-150400.24.128.1
- (no CPE)range: < 5.14.21-150400.24.128.1
- (no CPE)range: < 5.14.21-150400.24.128.1.150400.24.62.1
- (no CPE)range: < 5.14.21-150400.24.128.1
- (no CPE)range: < 5.14.21-150400.24.128.1
- (no CPE)range: < 5.14.21-150400.24.128.1
- (no CPE)range: < 5.14.21-150400.24.128.1.150400.24.62.1
- (no CPE)range: < 5.14.21-150400.24.128.1
Linux/Kernel3 versions
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*range: >=5.15,<5.15.10
- (no CPE)range: 5.15
- (no CPE)

cvss	0.507
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000

CVE-2021-47616

Description

AI Insight

Affected products

Patches

Vulnerability mechanics

References

News mentions