CVE-2021-41073
- Source
- https://cve.org/CVERecord?id=CVE-2021-41073
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-41073.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2021-41073
- Downstream
- Related
- Published
- 2021-09-19T17:15:07.227Z
- Modified
- 2026-03-20T11:44:02.197839Z
- Severity
-
- 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- [none]
- Details
-
looprwiter in fs/iouring.c in the Linux kernel 5.10 through 5.14.6 allows local users to gain privileges by using IORINGOPPROVIDEBUFFERS to trigger a free of a kernel buffer, as demonstrated by using /proc/<pid>/maps for exploitation.
- References
-
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/J7KSMIOQ4377CVTHMWNGNCWHMCRFRP2T/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PAP4TXEZ7J4EZQMQW5SIJMWXG7WZT3F7/
- http://www.openwall.com/lists/oss-security/2021/09/18/2
- http://www.openwall.com/lists/oss-security/2022/06/04/4
- https://security.netapp.com/advisory/ntap-20211014-0003/
- https://www.debian.org/security/2021/dsa-4978
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=16c8d2df7ec0eed31b7d3b61cb13206a7fb930cc
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixed16c8d2df7ec0eed31b7d3b61cb13206a7fb930cc
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixed16c8d2df7ec0eed31b7d3b61cb13206a7fb930cc
Database specific
source
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-41073.json"
unresolved_ranges
[
{
"events": [
{
"introduced": "5.10"
},
{
"fixed": "5.10.68"
}
]
},
{
"events": [
{
"introduced": "5.11"
},
{
"fixed": "5.14.7"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "10.0"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "33"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "34"
}
]
},
{
"events": [
{
"introduced": "5.10"
},
{
"last_affected": "5.14.6"
}
]
}
]