vulnerability

Red Hat: CVE-2023-52974: kernel: scsi: iscsi_tcp: Fix UAF during login when accessing the shost ipaddress (Multiple Advisories)

Name: Red Hat: CVE-2023-52974: kernel: scsi: iscsi_tcp: Fix UAF during login when accessing the shost ipaddress (Multiple Advisories)
Creator: Red Hat
Published: 2025-03-27T00:00:00.000Z
Keywords: CVE, CWE-416, Red Hat, 2023, 52974, kernel, redhat-upgrade-kernel, redhat-upgrade-kernel-rt, Severity 7

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Severity

CVSS

(AV:L/AC:M/Au:S/C:C/I:C/A:C)

Published

Mar 27, 2025

Added

Jul 9, 2025

Modified

Mar 27, 2026

Description

In the Linux kernel, the following vulnerability has been resolved:

scsi: iscsi_tcp: Fix UAF during login when accessing the shost ipaddress

If during iscsi_sw_tcp_session_create() iscsi_tcp_r2tpool_alloc() fails,
userspace could be accessing the host's ipaddress attr. If we then free the
session via iscsi_session_teardown() while userspace is still accessing the
session we will hit a use after free bug.

Set the tcp_sw_host->session after we have completed session creation and
can no longer fail.

Solutions

redhat-upgrade-kernelredhat-upgrade-kernel-rt

References

Rapid7 Labs

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