CVE-2021-28951
First published: Sat Mar 20 2021(Updated: )
An issue was discovered in fs/io_uring.c in the Linux kernel through 5.11.8. It allows attackers to cause a denial of service (deadlock) because exit may be waiting to park a SQPOLL thread, but concurrently that SQPOLL thread is waiting for a signal to start, aka CID-3ebba796fa25.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Linux kernel | <=5.11.8 | |
| Fedoraproject Fedora | =32 | |
| Fedoraproject Fedora | =33 | |
| Fedoraproject Fedora | =34 | |
| Netapp A250 Firmware | ||
| Netapp A250 | ||
| Netapp Aff 500f Firmware | ||
| Netapp Aff 500f | ||
| Netapp Fas 500f Firmware | ||
| Netapp Fas 500f | ||
| Netapp Cloud Backup | ||
| Netapp Solidfire Baseboard Management Controller Firmware | ||
| Netapp Solidfire Baseboard Management Controller | ||
| All of | ||
| Netapp A250 | ||
| Netapp A250 Firmware | ||
| All of | ||
| Netapp Aff 500f | ||
| Netapp Aff 500f Firmware | ||
| All of | ||
| Netapp Fas 500f | ||
| Netapp Fas 500f Firmware | ||
| All of | ||
| Netapp Solidfire Baseboard Management Controller | ||
| Netapp Solidfire Baseboard Management Controller Firmware | ||
| debian/linux | 5.10.223-1 5.10.226-1 6.1.115-1 6.1.119-1 6.11.10-1 6.12.5-1 |
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Reference Links
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=3ebba796fa251d042be42b929a2d916ee5c34a49
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4VCKIOXCOZGXBEZMO5LGGV5MWCHO6FT3/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PTRNPQTZ4GVS46SZ4OBXY5YDOGVPSTGQ/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/T2S3I4SLRNRUQDOFYUS6IUAZMQNMPNLG/
- https://security.netapp.com/advisory/ntap-20210430-0003/
- https://launchpad.net/bugs/cve/CVE-2021-28951
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4VCKIOXCOZGXBEZMO5LGGV5MWCHO6FT3/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PTRNPQTZ4GVS46SZ4OBXY5YDOGVPSTGQ/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/T2S3I4SLRNRUQDOFYUS6IUAZMQNMPNLG/
- https://git.kernel.org/linus/3ebba796fa251d042be42b929a2d916ee5c34a49
- https://security-tracker.debian.org/tracker/CVE-2021-28951
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-28951
- https://nvd.nist.gov/vuln/detail/CVE-2021-28951
- https://ubuntu.com/security/CVE-2021-28951
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