Unrated severityNVD Advisory· Published Apr 17, 2025· Updated May 4, 2025
can: vxcan: vxcan_xmit: fix use after free bug
CVE-2021-47669
Description
In the Linux kernel, the following vulnerability has been resolved:
can: vxcan: vxcan_xmit: fix use after free bug
After calling netif_rx_ni(skb), dereferencing skb is unsafe. Especially, the canfd_frame cfd which aliases skb memory is accessed after the netif_rx_ni().
Affected products
53- osv-coords51 versionspkg: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-default-base&distro=SUSE%20Enterprise%20Storage%207.1pkg: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%20SP3-LTSSpkg: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%20SP3pkg: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%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%20SP5-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%20SP3pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%20LTSS%20Extended%20Security%2012%20SP5pkg:rpm/suse/kernel-docs&distro=SUSE%20Enterprise%20Storage%207.1pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP3-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%20SP3pkg:rpm/suse/kernel-livepatch-SLE15-SP3_Update_57&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%20SP3-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%20SP3pkg:rpm/suse/kernel-preempt&distro=SUSE%20Enterprise%20Storage%207.1pkg:rpm/suse/kernel-preempt&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP3-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%20SP3pkg: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-source&distro=SUSE%20Enterprise%20Storage%207.1pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP3-LTSSpkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5-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%20SP3pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%20LTSS%20Extended%20Security%2012%20SP5pkg: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-syms&distro=SUSE%20Enterprise%20Storage%207.1pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP3-LTSSpkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5-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%20SP3pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%20LTSS%20Extended%20Security%2012%20SP5pkg:rpm/suse/kernel-zfcpdump&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP3-LTSSpkg:rpm/suse/kgraft-patch-SLE12-SP5_Update_68&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2012%20SP5
< 5.3.18-150300.59.204.1+ 50 more
- (no CPE)range: < 5.3.18-150300.59.204.1
- (no CPE)range: < 5.3.18-150300.59.204.1
- (no CPE)range: < 5.3.18-150300.59.204.1
- (no CPE)range: < 5.3.18-150300.59.204.1.150300.18.122.1
- (no CPE)range: < 5.3.18-150300.59.204.1.150300.18.122.1
- (no CPE)range: < 5.3.18-150300.59.204.1.150300.18.122.1
- (no CPE)range: < 5.3.18-150300.59.204.1.150300.18.122.1
- (no CPE)range: < 5.3.18-150300.59.204.1.150300.18.122.1
- (no CPE)range: < 5.3.18-150300.59.204.1.150300.18.122.1
- (no CPE)range: < 5.3.18-150300.59.204.1
- (no CPE)range: < 5.3.18-150300.59.204.1
- (no CPE)range: < 5.3.18-150300.59.204.1
- (no CPE)range: < 4.12.14-122.258.1
- (no CPE)range: < 5.3.18-150300.59.204.1
- (no CPE)range: < 5.3.18-150300.59.204.1
- (no CPE)range: < 5.3.18-150300.59.204.1
- (no CPE)range: < 4.12.14-122.258.1
- (no CPE)range: < 5.3.18-150300.59.204.1
- (no CPE)range: < 5.3.18-150300.59.204.1
- (no CPE)range: < 4.12.14-122.258.1
- (no CPE)range: < 5.3.18-150300.59.204.1
- (no CPE)range: < 5.3.18-150300.59.204.1
- (no CPE)range: < 5.3.18-150300.59.204.1
- (no CPE)range: < 5.3.18-150300.59.204.1
- (no CPE)range: < 1-150300.7.3.1
- (no CPE)range: < 5.3.18-150300.59.204.1
- (no CPE)range: < 5.3.18-150300.59.204.1
- (no CPE)range: < 5.3.18-150300.59.204.1
- (no CPE)range: < 5.3.18-150300.59.204.1
- (no CPE)range: < 5.3.18-150300.59.204.1
- (no CPE)range: < 5.3.18-150300.59.204.1
- (no CPE)range: < 5.3.18-150300.59.204.1
- (no CPE)range: < 5.3.18-150300.59.204.1
- (no CPE)range: < 5.3.18-150300.208.1
- (no CPE)range: < 5.3.18-150300.208.1
- (no CPE)range: < 5.3.18-150300.59.204.1
- (no CPE)range: < 5.3.18-150300.59.204.1
- (no CPE)range: < 4.12.14-122.258.1
- (no CPE)range: < 5.3.18-150300.59.204.1
- (no CPE)range: < 5.3.18-150300.59.204.1
- (no CPE)range: < 4.12.14-122.258.1
- (no CPE)range: < 5.3.18-150300.208.1
- (no CPE)range: < 5.3.18-150300.208.1
- (no CPE)range: < 5.3.18-150300.59.204.1
- (no CPE)range: < 5.3.18-150300.59.204.1
- (no CPE)range: < 4.12.14-122.258.1
- (no CPE)range: < 5.3.18-150300.59.204.1
- (no CPE)range: < 5.3.18-150300.59.204.1
- (no CPE)range: < 4.12.14-122.258.1
- (no CPE)range: < 5.3.18-150300.59.204.1
- (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
5- git.kernel.org/stable/c/6d6dcf2399cdd26f7f5426ca8dd8366b7f2ca105mitre
- git.kernel.org/stable/c/75854cad5d80976f6ea0f0431f8cedd3bcc475cbmitre
- git.kernel.org/stable/c/9b820875a32a3443d67bfd368e93038354e98052mitre
- git.kernel.org/stable/c/a24476b37167816e6352ca1a2cf3769847774f70mitre
- git.kernel.org/stable/c/e771a874076115df8bff27d325edfd2340e4ec69mitre
News mentions
0No linked articles in our index yet.