Unrated severityNVD Advisory· Published May 21, 2024· Updated May 4, 2025
net: qcom/emac: fix UAF in emac_remove
CVE-2021-47311
Description
In the Linux kernel, the following vulnerability has been resolved:
net: qcom/emac: fix UAF in emac_remove
adpt is netdev private data and it cannot be used after free_netdev() call. Using adpt after free_netdev() can cause UAF bug. Fix it by moving free_netdev() at the end of the function.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
103- osv-coords101 versionspkg:rpm/almalinux/kernel-rtpkg:rpm/almalinux/kernel-rt-corepkg:rpm/almalinux/kernel-rt-debugpkg:rpm/almalinux/kernel-rt-debug-corepkg:rpm/almalinux/kernel-rt-debug-develpkg:rpm/almalinux/kernel-rt-debug-kvmpkg:rpm/almalinux/kernel-rt-debug-modulespkg:rpm/almalinux/kernel-rt-debug-modules-extrapkg:rpm/almalinux/kernel-rt-develpkg:rpm/almalinux/kernel-rt-kvmpkg:rpm/almalinux/kernel-rt-modulespkg:rpm/almalinux/kernel-rt-modules-extrapkg: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%20Server%2015%20SP3-LTSSpkg: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-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%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%2012%20SP5pkg: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%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%2012%20SP5pkg: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%20Micro%205.1pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Micro%205.2pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%2012%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%2012%20SP5pkg: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%2012%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%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-docs&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP5pkg:rpm/suse/kernel-livepatch-SLE15-SP2_Update_50&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP2pkg:rpm/suse/kernel-livepatch-SLE15-SP3_Update_46&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP3pkg: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%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-obs-build&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP5pkg: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%20Linux%20Enterprise%20Real%20Time%2012%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%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%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%20Server%2012%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%2012%20SP5pkg: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%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%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%20Server%2012%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%2012%20SP5pkg: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%20Linux%20Enterprise%20Real%20Time%2012%20SP5pkg:rpm/suse/kernel-zfcpdump&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP3-LTSSpkg:rpm/suse/kgraft-patch-SLE12-SP5_Update_57&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2012%20SP5
< 4.18.0-553.8.1.rt7.349.el8_10+ 100 more
- (no CPE)range: < 4.18.0-553.8.1.rt7.349.el8_10
- (no CPE)range: < 4.18.0-553.8.1.rt7.349.el8_10
- (no CPE)range: < 4.18.0-553.8.1.rt7.349.el8_10
- (no CPE)range: < 4.18.0-553.8.1.rt7.349.el8_10
- (no CPE)range: < 4.18.0-553.8.1.rt7.349.el8_10
- (no CPE)range: < 4.18.0-553.8.1.rt7.349.el8_10
- (no CPE)range: < 4.18.0-553.8.1.rt7.349.el8_10
- (no CPE)range: < 4.18.0-553.8.1.rt7.349.el8_10
- (no CPE)range: < 4.18.0-553.8.1.rt7.349.el8_10
- (no CPE)range: < 4.18.0-553.8.1.rt7.349.el8_10
- (no CPE)range: < 4.18.0-553.8.1.rt7.349.el8_10
- (no CPE)range: < 4.18.0-553.8.1.rt7.349.el8_10
- (no CPE)range: < 5.3.18-150300.59.167.1
- (no CPE)range: < 5.3.18-150300.59.167.1
- (no CPE)range: < 5.3.18-150300.59.167.1
- (no CPE)range: < 4.12.14-16.188.1
- (no CPE)range: < 4.12.14-16.188.1
- (no CPE)range: < 5.3.18-150300.59.167.1.150300.18.98.1
- (no CPE)range: < 5.3.18-150200.24.197.1.150200.9.101.1
- (no CPE)range: < 5.3.18-150300.59.167.1.150300.18.98.1
- (no CPE)range: < 5.3.18-150300.59.167.1.150300.18.98.1
- (no CPE)range: < 5.3.18-150300.59.167.1.150300.18.98.1
- (no CPE)range: < 5.3.18-150200.24.197.1.150200.9.101.1
- (no CPE)range: < 5.3.18-150300.59.167.1.150300.18.98.1
- (no CPE)range: < 5.3.18-150200.24.197.1.150200.9.101.1
- (no CPE)range: < 5.3.18-150300.59.167.1.150300.18.98.1
- (no CPE)range: < 5.3.18-150300.59.167.1
- (no CPE)range: < 4.12.14-122.219.1
- (no CPE)range: < 5.3.18-150200.24.197.1
- (no CPE)range: < 5.3.18-150300.59.167.1
- (no CPE)range: < 5.3.18-150200.24.197.1
- (no CPE)range: < 5.3.18-150300.59.167.1
- (no CPE)range: < 4.12.14-122.219.1
- (no CPE)range: < 5.3.18-150200.24.197.1
- (no CPE)range: < 5.3.18-150300.59.167.1
- (no CPE)range: < 5.3.18-150300.59.167.1
- (no CPE)range: < 5.3.18-150300.59.167.1
- (no CPE)range: < 4.12.14-122.219.1
- (no CPE)range: < 5.3.18-150200.24.197.1
- (no CPE)range: < 5.3.18-150300.59.167.1
- (no CPE)range: < 4.12.14-122.219.1
- (no CPE)range: < 5.3.18-150200.24.197.1
- (no CPE)range: < 5.3.18-150300.59.167.1
- (no CPE)range: < 4.12.14-122.219.1
- (no CPE)range: < 5.3.18-150300.59.167.1
- (no CPE)range: < 5.3.18-150200.24.197.1
- (no CPE)range: < 5.3.18-150300.59.167.1
- (no CPE)range: < 5.3.18-150200.24.197.1
- (no CPE)range: < 5.3.18-150300.59.167.1
- (no CPE)range: < 5.3.18-150200.24.197.1
- (no CPE)range: < 5.3.18-150300.59.167.1
- (no CPE)range: < 4.12.14-122.219.1
- (no CPE)range: < 1-150200.5.3.1
- (no CPE)range: < 1-150300.7.3.1
- (no CPE)range: < 5.3.18-150300.59.167.1
- (no CPE)range: < 5.3.18-150200.24.197.1
- (no CPE)range: < 5.3.18-150300.59.167.1
- (no CPE)range: < 5.3.18-150200.24.197.1
- (no CPE)range: < 5.3.18-150300.59.167.1
- (no CPE)range: < 5.3.18-150200.24.197.1
- (no CPE)range: < 5.3.18-150300.59.167.1
- (no CPE)range: < 4.12.14-122.219.1
- (no CPE)range: < 5.3.18-150300.59.167.1
- (no CPE)range: < 5.3.18-150200.24.197.1
- (no CPE)range: < 5.3.18-150300.59.167.1
- (no CPE)range: < 5.3.18-150200.24.197.1
- (no CPE)range: < 5.3.18-150300.59.167.1
- (no CPE)range: < 5.3.18-150200.24.197.1
- (no CPE)range: < 5.3.18-150300.59.167.1
- (no CPE)range: < 4.12.14-10.188.1
- (no CPE)range: < 5.3.18-150300.175.1
- (no CPE)range: < 5.3.18-150300.175.1
- (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: < 5.3.18-150300.59.167.1
- (no CPE)range: < 5.3.18-150200.24.197.1
- (no CPE)range: < 5.3.18-150300.59.167.1
- (no CPE)range: < 4.12.14-122.219.1
- (no CPE)range: < 5.3.18-150200.24.197.1
- (no CPE)range: < 5.3.18-150300.59.167.1
- (no CPE)range: < 4.12.14-122.219.1
- (no CPE)range: < 5.3.18-150200.24.197.1
- (no CPE)range: < 5.3.18-150300.59.167.1
- (no CPE)range: < 5.3.18-150300.175.1
- (no CPE)range: < 5.3.18-150300.175.1
- (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: < 5.3.18-150300.59.167.1
- (no CPE)range: < 5.3.18-150200.24.197.1
- (no CPE)range: < 5.3.18-150300.59.167.1
- (no CPE)range: < 4.12.14-122.219.1
- (no CPE)range: < 5.3.18-150200.24.197.1
- (no CPE)range: < 5.3.18-150300.59.167.1
- (no CPE)range: < 4.12.14-122.219.1
- (no CPE)range: < 5.3.18-150200.24.197.1
- (no CPE)range: < 5.3.18-150300.59.167.1
- (no CPE)range: < 4.12.14-10.188.1
- (no CPE)range: < 5.3.18-150300.59.167.1
- (no CPE)range: < 1-8.3.1
Patches
Vulnerability mechanics
References
7- git.kernel.org/stable/c/11e9d163d631198bb3eb41a677a61b499516c0f7mitre
- git.kernel.org/stable/c/2b70ca92847c619d6264c7372ef74fcbfd1e048cmitre
- git.kernel.org/stable/c/4d04a42b926e682140776e54188f4a44f1f01a81mitre
- git.kernel.org/stable/c/8a225a6e07a57a1538d53637cb3d82bd3e477839mitre
- git.kernel.org/stable/c/ad297cd2db8953e2202970e9504cab247b6c7cb4mitre
- git.kernel.org/stable/c/b1e091331920f8fbfc747dcbd16263fcd71abb2dmitre
- git.kernel.org/stable/c/b560521eca03d0a2db6093a5a632cbdd0a0cf833mitre
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