High severity7.8NVD Advisory· Published Sep 19, 2021· Updated Jun 17, 2026
CVE-2021-41073
CVE-2021-41073
Description
loop_rw_iter in fs/io_uring.c in the Linux kernel 5.10 through 5.14.6 allows local users to gain privileges by using IORING_OP_PROVIDE_BUFFERS to trigger a free of a kernel buffer, as demonstrated by using /proc//maps for exploitation.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
2- Linux/Linux kerneldescription
- Range: 5.10 <= version <= 5.14.6
Patches
Vulnerability mechanics
References
7- git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/nvdPatchVendor Advisory
- www.openwall.com/lists/oss-security/2021/09/18/2nvdMailing ListThird Party Advisory
- www.openwall.com/lists/oss-security/2022/06/04/4nvdMailing ListThird Party Advisory
- security.netapp.com/advisory/ntap-20211014-0003/nvdThird Party Advisory
- www.debian.org/security/2021/dsa-4978nvdThird Party Advisory
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/J7KSMIOQ4377CVTHMWNGNCWHMCRFRP2T/nvd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PAP4TXEZ7J4EZQMQW5SIJMWXG7WZT3F7/nvd
News mentions
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