CVE-2022-3176
Vulnerability from cvelistv5
Published
2022-09-16 13:55
Modified
2025-04-21 13:49
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
There exists a use-after-free in io_uring in the Linux kernel. Signalfd_poll() and binder_poll() use a waitqueue whose lifetime is the current task. It will send a POLLFREE notification to all waiters before the queue is freed. Unfortunately, the io_uring poll doesn't handle POLLFREE. This allows a use-after-free to occur if a signalfd or binder fd is polled with io_uring poll, and the waitqueue gets freed. We recommend upgrading past commit fc78b2fc21f10c4c9c4d5d659a685710ffa63659
References
cve-coordination@google.comhttps://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit?h=linux-5.4.y&id=fc78b2fc21f10c4c9c4d5d659a685710ffa63659Mailing List, Patch, Vendor Advisory
cve-coordination@google.comhttps://kernel.dance/#fc78b2fc21f10c4c9c4d5d659a685710ffa63659Patch, Vendor Advisory
cve-coordination@google.comhttps://lists.debian.org/debian-lts-announce/2022/11/msg00001.htmlMailing List, Third Party Advisory
cve-coordination@google.comhttps://security.netapp.com/advisory/ntap-20230216-0003/Third Party Advisory
cve-coordination@google.comhttps://www.debian.org/security/2022/dsa-5257Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit?h=linux-5.4.y&id=fc78b2fc21f10c4c9c4d5d659a685710ffa63659Mailing List, Patch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://kernel.dance/#fc78b2fc21f10c4c9c4d5d659a685710ffa63659Patch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2022/11/msg00001.htmlMailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20230216-0003/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.debian.org/security/2022/dsa-5257Third Party Advisory
Impacted products
Vendor Product Version
Linux Kernel Version: unspecified   < fc78b2fc21f10c4c9c4d5d659a685710ffa63659
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