PT-2023-9428 · Linux+3 · Linux Kernel+3
CVSS v3.1
7.8
High
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel versions prior to 6.2.0-rc3-syzkaller-16369-g358a161a6a9e
Description
The issue is related to a lock overflowing for IOPOLL in the io uring component of the Linux kernel. Syzbot reports an issue with overflow filling for IOPOLL, which may lead to a denial of service. The problem is more complicated for IOPOLL|SQPOLL, where io cqring overflow flush() happens from the CQ waiting path.
Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
DoS
Improper Locking
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Weakness Enumeration
Related Identifiers
Affected Products
Alt Linux
Astra Linux
Linux Kernel
Red Os