CVEvulnerability

CVE-2021-28951

5.5 MEDIUM Published 2021-03-20 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2021-03-20
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0 ([email protected])
4.9 MEDIUM — AV:L/AC:L/Au:N/C:N/I:N/A:C
Weaknesses
CWE-667

Description

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.

Affected configurations

• linux linux kernel (<= 5.11.8) • fedoraproject fedora 32 • fedoraproject fedora 33 • fedoraproject fedora 34 • netapp a250 firmware • netapp aff 500f firmware • netapp fas 500f firmware • netapp cloud backup • netapp solidfire baseboard management controller firmware

Related

Weakness · CWE (1)

  • CWE-667 Improper Locking weakness

References