PT-2025-41112 · Linux+1 · Linux Kernel+1
Published
2023-07-12
·
Updated
2026-02-03
·
CVE-2023-53668
CVSS v3.1
7.1
High
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
The Linux kernel contains a flaw related to the ring buffer and reading the 'trace pipe' file. A soft lockup can occur due to a deadloop when reading this file. The issue arises because when resetting the ring buffer, not all entries in its pages are cleared. Subsequently, when reducing the ring buffer, incorrect overrun counts can occur, leading to the deadloop. The root cause is that
rb num of entries() incorrectly returns 0, causing ring buffer empty cpu() to repeatedly search for an entry that doesn't exist. This can lead to the kernel getting stuck in an infinite loop.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
Out of bounds Read
Infinite Loop
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Related Identifiers
Affected Products
Linux Kernel
Suse