CVE-2024-0639

Kernel: potential deadlock on &net->sctp.addr_wq_lock leading to dos

State: Published
Severity: 5.5 Medium
Published: Jan 17, 2024
Updated: Jul 21, 2026
Reserved: Jan 17, 2024

Description

A denial of service vulnerability due to a deadlock was found in sctp_auto_asconf_init in net/sctp/socket.c in the Linux kernel’s SCTP subsystem. This flaw allows guests with local user privileges to trigger a deadlock and potentially crash the system.

Scores

CVSS	Score	Vector	Source
3.1	5.5 Medium	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H	redhat

Weaknesses

CWE-833 Deadlock

Affected Products

Product	Versions
kernel	before 6.5-rc1Affected
Red Hat Enterprise Linux 9Red Hat	0:5.14.0-362.8.1.el9_3 and laterNot affected
Red Hat Enterprise Linux 9Red Hat	0:5.14.0-362.8.1.el9_3 and laterNot affected
Red Hat Enterprise Linux 6Red Hat
Red Hat Enterprise Linux 7Red Hat
Red Hat Enterprise Linux 7Red Hat
Red Hat Enterprise Linux 8Red Hat
Red Hat Enterprise Linux 8Red Hat
Red Hat Enterprise Linux 9Red Hat

References

RHSA-2023:6583vendor-advisory
https://access.redhat.com/security/cve/CVE-2024-0639vdb-entry
RHBZ#2258754issue-tracking
https://github.com/torvalds/linux/commit/6feb37b3b06e9049e20dcf7e23998f92c9c5be9a

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