PT-2024-10027 · Linux+5 · Linux Kernel+5
Published
2024-10-18
·
Updated
2026-05-26
·
CVE-2024-50106
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 race condition between the laundromat handling of revoked delegations and a client sending a free stateid operation in the Linux kernel's NFS server. This can lead to a use-after-free error, potentially allowing an attacker to impact the confidentiality, integrity, and availability of protected information. The vulnerability is caused by the laundromat thread marking a delegation as revoked and putting it on a reaper list, but then unlocking the state lock, allowing a racing free stateid processing thread to remove the delegation from the list and free its structure. A new open for the file can then try to dereference the freed delegation stateid, resulting in a use-after-free error.
Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
DoS
Use After Free
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Weakness Enumeration
Related Identifiers
Affected Products
Alt Linux
Linuxmint
Linux Kernel
Red Hat
Suse
Ubuntu