CVEvulnerability
CVE-2021-41073
7.8 HIGH
Official page ↗
- Status
- Modified
- Published
- 2021-09-19
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 7.2 HIGH — AV:L/AC:L/Au:N/C:C/I:C/A:C
- Weaknesses
- CWE-763
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/<pid>/maps for exploitation.
Affected configurations
• linux linux kernel (>= 5.10 < 5.10.68)
• linux linux kernel (>= 5.11 < 5.14.7)
• debian debian linux 10.0
• fedoraproject fedora 33
• fedoraproject fedora 34
• netapp cloud backup
• netapp solidfire baseboard management controller
• netapp h410c firmware
• netapp h300s firmware
• netapp h500s firmware
• netapp h700s firmware
• netapp h300e firmware
• netapp h500e firmware
• netapp h700e firmware
• netapp h410s firmware
Related
Weakness · CWE (1)
- CWE-763 Release of Invalid Pointer or Reference weakness
References
- http://www.openwall.com/lists/oss-security/2021/09/18/2 Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2021/09/18/2 Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2021/09/18/2 Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2021/09/18/2 Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2022/06/04/4 Mailing List, Third Party Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=16c8d2df7ec0eed31b7d3b61cb13206a7fb930cc Patch, Vendor Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/J7KSMIOQ4377CVTHMWNGNCWHMCRFRP2T/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PAP4TXEZ7J4EZQMQW5SIJMWXG7WZT3F7/ lists.fedoraproject.org
- https://security.netapp.com/advisory/ntap-20211014-0003/ Third Party Advisory
- https://www.debian.org/security/2021/dsa-4978 Third Party Advisory
- http://www.openwall.com/lists/oss-security/2021/09/18/2 Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2021/09/18/2 Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2021/09/18/2 Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2021/09/18/2 Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2022/06/04/4 Mailing List, Third Party Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=16c8d2df7ec0eed31b7d3b61cb13206a7fb930cc Patch, Vendor Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/J7KSMIOQ4377CVTHMWNGNCWHMCRFRP2T/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PAP4TXEZ7J4EZQMQW5SIJMWXG7WZT3F7/ lists.fedoraproject.org
- https://security.netapp.com/advisory/ntap-20211014-0003/ Third Party Advisory
- https://www.debian.org/security/2021/dsa-4978 Third Party Advisory