High severity7.8NVD Advisory· Published May 11, 2021· Updated Jun 17, 2026
CVE-2021-32606
CVE-2021-32606
Description
In the Linux kernel 5.11 through 5.12.2, isotp_setsockopt in net/can/isotp.c allows privilege escalation to root by leveraging a use-after-free. (This does not affect earlier versions that lack CAN ISOTP SF_BROADCAST support.)
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
7cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
- Linux/Linux kerneldescription
Patches
Vulnerability mechanics
References
10- www.openwall.com/lists/oss-security/2021/05/28/1nvdMailing ListPatchThird Party Advisory
- www.openwall.com/lists/oss-security/2021/05/12/1nvdMailing ListThird Party Advisory
- www.openwall.com/lists/oss-security/2021/05/13/2nvdMailing ListThird Party Advisory
- www.openwall.com/lists/oss-security/2021/05/14/1nvdMailing ListThird Party Advisory
- security.netapp.com/advisory/ntap-20210625-0001/nvdThird Party Advisory
- www.openwall.com/lists/oss-security/2021/05/11/16nvdMailing ListThird Party Advisory
- git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/nvd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/73D53S4IZFPFQMRABMXXLW4AJK3EULDX/nvd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GI7Z7UBWBGD3ABNIL2DC7RQDCGA4UVQW/nvd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HD3NJBG25AADVGPRC63RX2JOQBMPSWK4/nvd
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