vulnerability

SUSE: CVE-2021-46905: SUSE Linux Security Advisory

Severity
5
CVSS
(AV:L/AC:L/Au:S/C:N/I:N/A:C)
Published
02/26/2024
Added
08/09/2024
Modified
01/28/2025

Description

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

net: hso: fix NULL-deref on disconnect regression

Commit 8a12f8836145 ("net: hso: fix null-ptr-deref during tty device
unregistration") fixed the racy minor allocation reported by syzbot, but
introduced an unconditional NULL-pointer dereference on every disconnect
instead.

Specifically, the serial device table must no longer be accessed after
the minor has been released by hso_serial_tty_unregister().

Solution(s)

suse-upgrade-kernel-64kbsuse-upgrade-kernel-64kb-develsuse-upgrade-kernel-azuresuse-upgrade-kernel-azure-basesuse-upgrade-kernel-azure-develsuse-upgrade-kernel-defaultsuse-upgrade-kernel-default-basesuse-upgrade-kernel-default-develsuse-upgrade-kernel-default-extrasuse-upgrade-kernel-default-mansuse-upgrade-kernel-develsuse-upgrade-kernel-devel-azuresuse-upgrade-kernel-docssuse-upgrade-kernel-ec2suse-upgrade-kernel-ec2-basesuse-upgrade-kernel-ec2-develsuse-upgrade-kernel-macrossuse-upgrade-kernel-obs-buildsuse-upgrade-kernel-preemptsuse-upgrade-kernel-preempt-develsuse-upgrade-kernel-sourcesuse-upgrade-kernel-source-azuresuse-upgrade-kernel-symssuse-upgrade-kernel-syms-azuresuse-upgrade-kernel-tracesuse-upgrade-kernel-trace-basesuse-upgrade-kernel-trace-develsuse-upgrade-kernel-xensuse-upgrade-kernel-xen-basesuse-upgrade-kernel-xen-develsuse-upgrade-kernel-zfcpdumpsuse-upgrade-reiserfs-kmp-default
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