PT-2024-14725 · Linux+7 · Linux Kernel+7
Paulo Alcantara
·
Published
2023-10-31
·
Updated
2026-05-26
·
CVE-2023-52757
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 (affected versions not specified)
Description
The issue is related to a potential deadlock when releasing mids in the smb client. All
release mid() callers seem to hold a reference of @mid, so there is no need to call kref put(&mid->refcount, release mid) under @server->mid lock spinlock. If they don't, then an use-after-free bug would have occurred anyways. By getting rid of such spinlock, it also fixes a potential deadlock as shown in the scenario involving cifs demultiplex thread() and cifs debug data proc show().Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
DoS
Improper Locking
Use After Free
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Related Identifiers
Affected Products
Astra Linux
Debian
Linuxmint
Linux Kernel
Red Hat
Red Os
Suse
Ubuntu