Unrated severityNVD Advisory· Published May 24, 2024· Updated May 4, 2025
rxrpc: Fix rxrpc_local leak in rxrpc_lookup_peer()
CVE-2021-47538
Description
In the Linux kernel, the following vulnerability has been resolved:
rxrpc: Fix rxrpc_local leak in rxrpc_lookup_peer()
Need to call rxrpc_put_local() for peer candidate before kfree() as it holds a ref to rxrpc_local.
[DH: v2: Changed to abstract the peer freeing code out into a function]
Affected products
115- osv-coords114 versionspkg:rpm/opensuse/dtb-aarch64&distro=openSUSE%20Leap%2015.5pkg:rpm/opensuse/kernel-64kb&distro=openSUSE%20Leap%2015.5pkg:rpm/opensuse/kernel-azure&distro=openSUSE%20Leap%2015.5pkg:rpm/opensuse/kernel-debug&distro=openSUSE%20Leap%2015.5pkg:rpm/opensuse/kernel-default-base&distro=openSUSE%20Leap%2015.5pkg:rpm/opensuse/kernel-default-base&distro=openSUSE%20Leap%20Micro%205.5pkg:rpm/opensuse/kernel-default&distro=openSUSE%20Leap%2015.5pkg:rpm/opensuse/kernel-default&distro=openSUSE%20Leap%20Micro%205.5pkg:rpm/opensuse/kernel-docs&distro=openSUSE%20Leap%2015.5pkg:rpm/opensuse/kernel-kvmsmall&distro=openSUSE%20Leap%2015.5pkg:rpm/opensuse/kernel-obs-build&distro=openSUSE%20Leap%2015.5pkg:rpm/opensuse/kernel-obs-qa&distro=openSUSE%20Leap%2015.5pkg:rpm/opensuse/kernel-rt_debug&distro=openSUSE%20Leap%2015.5pkg:rpm/opensuse/kernel-rt&distro=openSUSE%20Leap%2015.5pkg:rpm/opensuse/kernel-source-azure&distro=openSUSE%20Leap%2015.5pkg:rpm/opensuse/kernel-source&distro=openSUSE%20Leap%2015.5pkg:rpm/opensuse/kernel-source-rt&distro=openSUSE%20Leap%2015.5pkg:rpm/opensuse/kernel-syms-azure&distro=openSUSE%20Leap%2015.5pkg:rpm/opensuse/kernel-syms&distro=openSUSE%20Leap%2015.5pkg:rpm/opensuse/kernel-syms-rt&distro=openSUSE%20Leap%2015.5pkg:rpm/opensuse/kernel-zfcpdump&distro=openSUSE%20Leap%2015.5pkg:rpm/suse/kernel-64kb&distro=SUSE%20Enterprise%20Storage%207.1pkg:rpm/suse/kernel-64kb&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP3-LTSSpkg:rpm/suse/kernel-64kb&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP5pkg:rpm/suse/kernel-64kb&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP3-LTSSpkg:rpm/suse/kernel-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP5pkg:rpm/suse/kernel-default-base&distro=SUSE%20Enterprise%20Storage%207.1pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP2-LTSSpkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP3-LTSSpkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20Micro%205.1pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20Micro%205.2pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20Micro%205.5pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP5pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP2-LTSSpkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP3-LTSSpkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP2pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP3pkg:rpm/suse/kernel-default&distro=SUSE%20Enterprise%20Storage%207.1pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2015%20SP2pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2015%20SP3pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2015%20SP5pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP2-LTSSpkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP3-LTSSpkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP2pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP3pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP5pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Micro%205.1pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Micro%205.2pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Micro%205.5pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP5pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Legacy%2015%20SP5pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP2-LTSSpkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP3-LTSSpkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP2pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP3pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2015%20SP5pkg:rpm/suse/kernel-docs&distro=SUSE%20Enterprise%20Storage%207.1pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP2-LTSSpkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP3-LTSSpkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP5pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP2-LTSSpkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP3-LTSSpkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP2pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP3pkg:rpm/suse/kernel-livepatch-SLE15-SP2_Update_49&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP2pkg:rpm/suse/kernel-livepatch-SLE15-SP3_Update_45&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP3pkg:rpm/suse/kernel-livepatch-SLE15-SP5-RT_Update_17&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP5pkg:rpm/suse/kernel-livepatch-SLE15-SP5_Update_17&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP5pkg:rpm/suse/kernel-obs-build&distro=SUSE%20Enterprise%20Storage%207.1pkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP2-LTSSpkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP3-LTSSpkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP5pkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP2-LTSSpkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP3-LTSSpkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP2pkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP3pkg:rpm/suse/kernel-preempt&distro=SUSE%20Enterprise%20Storage%207.1pkg:rpm/suse/kernel-preempt&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP2-LTSSpkg:rpm/suse/kernel-preempt&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP3-LTSSpkg:rpm/suse/kernel-preempt&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP2-LTSSpkg:rpm/suse/kernel-preempt&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP3-LTSSpkg:rpm/suse/kernel-preempt&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP2pkg:rpm/suse/kernel-preempt&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP3pkg:rpm/suse/kernel-rt_debug&distro=SUSE%20Real%20Time%20Module%2015%20SP5pkg:rpm/suse/kernel-rt&distro=SUSE%20Linux%20Enterprise%20Micro%205.1pkg:rpm/suse/kernel-rt&distro=SUSE%20Linux%20Enterprise%20Micro%205.2pkg:rpm/suse/kernel-rt&distro=SUSE%20Linux%20Enterprise%20Micro%205.5pkg:rpm/suse/kernel-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP5pkg:rpm/suse/kernel-source-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP5pkg:rpm/suse/kernel-source&distro=SUSE%20Enterprise%20Storage%207.1pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP2-LTSSpkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP3-LTSSpkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP5pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP5pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP2-LTSSpkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP3-LTSSpkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP2pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP3pkg:rpm/suse/kernel-source-rt&distro=SUSE%20Linux%20Enterprise%20Micro%205.1pkg:rpm/suse/kernel-source-rt&distro=SUSE%20Linux%20Enterprise%20Micro%205.2pkg:rpm/suse/kernel-source-rt&distro=SUSE%20Linux%20Enterprise%20Micro%205.5pkg:rpm/suse/kernel-source-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP5pkg:rpm/suse/kernel-syms-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP5pkg:rpm/suse/kernel-syms&distro=SUSE%20Enterprise%20Storage%207.1pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP2-LTSSpkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP3-LTSSpkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP5pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP2-LTSSpkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP3-LTSSpkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP2pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP3pkg:rpm/suse/kernel-syms-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP5pkg:rpm/suse/kernel-zfcpdump&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP5pkg:rpm/suse/kernel-zfcpdump&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP3-LTSS
< 5.14.21-150500.55.73.1+ 113 more
- (no CPE)range: < 5.14.21-150500.55.73.1
- (no CPE)range: < 5.14.21-150500.55.73.1
- (no CPE)range: < 5.14.21-150500.33.60.1
- (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: < 5.14.21-150500.13.61.1
- (no CPE)range: < 5.14.21-150500.13.61.1
- (no CPE)range: < 5.14.21-150500.33.60.1
- (no CPE)range: < 5.14.21-150500.55.73.1
- (no CPE)range: < 5.14.21-150500.13.61.1
- (no CPE)range: < 5.14.21-150500.33.60.1
- (no CPE)range: < 5.14.21-150500.55.73.1
- (no CPE)range: < 5.14.21-150500.13.61.1
- (no CPE)range: < 5.14.21-150500.55.73.1
- (no CPE)range: < 5.3.18-150300.59.164.1
- (no CPE)range: < 5.3.18-150300.59.164.1
- (no CPE)range: < 5.14.21-150500.55.73.1
- (no CPE)range: < 5.3.18-150300.59.164.1
- (no CPE)range: < 5.14.21-150500.33.60.1
- (no CPE)range: < 5.3.18-150300.59.164.1.150300.18.96.1
- (no CPE)range: < 5.3.18-150200.24.194.1.150200.9.99.1
- (no CPE)range: < 5.3.18-150300.59.164.1.150300.18.96.1
- (no CPE)range: < 5.3.18-150300.59.164.1.150300.18.96.1
- (no CPE)range: < 5.3.18-150300.59.164.1.150300.18.96.1
- (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: < 5.3.18-150200.24.194.1.150200.9.99.1
- (no CPE)range: < 5.3.18-150300.59.164.1.150300.18.96.1
- (no CPE)range: < 5.3.18-150200.24.194.1.150200.9.99.1
- (no CPE)range: < 5.3.18-150300.59.164.1.150300.18.96.1
- (no CPE)range: < 5.3.18-150300.59.164.1
- (no CPE)range: < 5.3.18-150200.24.194.1
- (no CPE)range: < 5.3.18-150300.59.164.1
- (no CPE)range: < 5.14.21-150500.55.73.1
- (no CPE)range: < 5.3.18-150200.24.194.1
- (no CPE)range: < 5.3.18-150300.59.164.1
- (no CPE)range: < 5.3.18-150200.24.194.1
- (no CPE)range: < 5.3.18-150300.59.164.1
- (no CPE)range: < 5.14.21-150500.55.73.1
- (no CPE)range: < 5.3.18-150300.59.164.1
- (no CPE)range: < 5.3.18-150300.59.164.1
- (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: < 5.3.18-150200.24.194.1
- (no CPE)range: < 5.3.18-150300.59.164.1
- (no CPE)range: < 5.3.18-150200.24.194.1
- (no CPE)range: < 5.3.18-150300.59.164.1
- (no CPE)range: < 5.14.21-150500.55.73.1
- (no CPE)range: < 5.3.18-150300.59.164.1
- (no CPE)range: < 5.3.18-150200.24.194.1
- (no CPE)range: < 5.3.18-150300.59.164.1
- (no CPE)range: < 5.14.21-150500.55.73.2
- (no CPE)range: < 5.3.18-150200.24.194.1
- (no CPE)range: < 5.3.18-150300.59.164.1
- (no CPE)range: < 5.3.18-150200.24.194.1
- (no CPE)range: < 5.3.18-150300.59.164.1
- (no CPE)range: < 1-150200.5.3.1
- (no CPE)range: < 1-150300.7.3.1
- (no CPE)range: < 1-150500.11.3.1
- (no CPE)range: < 1-150500.11.3.1
- (no CPE)range: < 5.3.18-150300.59.164.1
- (no CPE)range: < 5.3.18-150200.24.194.1
- (no CPE)range: < 5.3.18-150300.59.164.1
- (no CPE)range: < 5.14.21-150500.55.73.1
- (no CPE)range: < 5.3.18-150200.24.194.1
- (no CPE)range: < 5.3.18-150300.59.164.1
- (no CPE)range: < 5.3.18-150200.24.194.1
- (no CPE)range: < 5.3.18-150300.59.164.1
- (no CPE)range: < 5.3.18-150300.59.164.1
- (no CPE)range: < 5.3.18-150200.24.194.1
- (no CPE)range: < 5.3.18-150300.59.164.1
- (no CPE)range: < 5.3.18-150200.24.194.1
- (no CPE)range: < 5.3.18-150300.59.164.1
- (no CPE)range: < 5.3.18-150200.24.194.1
- (no CPE)range: < 5.3.18-150300.59.164.1
- (no CPE)range: < 5.14.21-150500.13.61.1
- (no CPE)range: < 5.3.18-150300.172.1
- (no CPE)range: < 5.3.18-150300.172.1
- (no CPE)range: < 5.14.21-150500.13.61.1
- (no CPE)range: < 5.14.21-150500.13.61.1
- (no CPE)range: < 5.14.21-150500.33.60.1
- (no CPE)range: < 5.3.18-150300.59.164.1
- (no CPE)range: < 5.3.18-150200.24.194.1
- (no CPE)range: < 5.3.18-150300.59.164.1
- (no CPE)range: < 5.14.21-150500.55.73.1
- (no CPE)range: < 5.14.21-150500.55.73.1
- (no CPE)range: < 5.3.18-150200.24.194.1
- (no CPE)range: < 5.3.18-150300.59.164.1
- (no CPE)range: < 5.3.18-150200.24.194.1
- (no CPE)range: < 5.3.18-150300.59.164.1
- (no CPE)range: < 5.3.18-150300.172.1
- (no CPE)range: < 5.3.18-150300.172.1
- (no CPE)range: < 5.14.21-150500.13.61.1
- (no CPE)range: < 5.14.21-150500.13.61.1
- (no CPE)range: < 5.14.21-150500.33.60.1
- (no CPE)range: < 5.3.18-150300.59.164.1
- (no CPE)range: < 5.3.18-150200.24.194.1
- (no CPE)range: < 5.3.18-150300.59.164.1
- (no CPE)range: < 5.14.21-150500.55.73.1
- (no CPE)range: < 5.3.18-150200.24.194.1
- (no CPE)range: < 5.3.18-150300.59.164.1
- (no CPE)range: < 5.3.18-150200.24.194.1
- (no CPE)range: < 5.3.18-150300.59.164.1
- (no CPE)range: < 5.14.21-150500.13.61.1
- (no CPE)range: < 5.14.21-150500.55.73.1
- (no CPE)range: < 5.3.18-150300.59.164.1
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
5- git.kernel.org/stable/c/3e70e3a72d80b16094faccbe438cd53761c3503amitre
- git.kernel.org/stable/c/60f0b9c42cb80833a03ca57c1c8b078d716e71d1mitre
- git.kernel.org/stable/c/913c24af2d13a3fd304462916ee98e298d56bdcemitre
- git.kernel.org/stable/c/9469273e616ca8f1b6e3773c5019f21b4c8d828cmitre
- git.kernel.org/stable/c/beacff50edbd6c9659a6f15fc7f6126909fade29mitre
News mentions
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