Unrated severityNVD Advisory· Published Dec 30, 2025· Updated Apr 15, 2026
CVE-2023-54220
CVE-2023-54220
Description
In the Linux kernel, the following vulnerability has been resolved:
serial: 8250: Fix oops for port->pm on uart_change_pm()
Unloading a hardware specific 8250 driver can produce error "Unable to handle kernel paging request at virtual address" about ten seconds after unloading the driver. This happens on uart_hangup() calling uart_change_pm().
Turns out commit 04e82793f068 ("serial: 8250: Reinit port->pm on port specific driver unbind") was only a partial fix. If the hardware specific driver has initialized port->pm function, we need to clear port->pm too. Just reinitializing port->ops does not do this. Otherwise serial8250_pm() will call port->pm() instead of serial8250_do_pm().
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
72- osv-coords71 versionspkg:linux/kernelpkg:rpm/opensuse/dtb-aarch64&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-64kb&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-debug&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-default-base&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-default&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-docs&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-kvmsmall&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-obs-build&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-obs-qa&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-source&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-syms&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-zfcpdump&distro=openSUSE%20Leap%2015.6pkg:rpm/suse/kernel-64kb&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP7pkg:rpm/suse/kernel-64kb&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP6-LTSSpkg:rpm/suse/kernel-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP7pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP7pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP6-LTSSpkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP6pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Micro%206.0pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Micro%206.1pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2015%20SP6pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2015%20SP7pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2012%20SP5pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP6pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP7pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP7pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Legacy%2015%20SP7pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5-LTSSpkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP6-LTSSpkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP6pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%20LTSS%20Extended%20Security%2012%20SP5pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2015%20SP7pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Micro%206.0pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Micro%206.1pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP7pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP6-LTSSpkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP6pkg:rpm/suse/kernel-kvmsmall&distro=SUSE%20Linux%20Micro%206.0pkg:rpm/suse/kernel-kvmsmall&distro=SUSE%20Linux%20Micro%206.1pkg:rpm/suse/kernel-livepatch-SLE15-SP6_Update_19&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP6pkg:rpm/suse/kernel-livepatch-SLE15-SP7-RT_Update_8&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP7pkg:rpm/suse/kernel-livepatch-SLE15-SP7_Update_8&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP7pkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP7pkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP6-LTSSpkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP6pkg:rpm/suse/kernel-rt&distro=SUSE%20Linux%20Micro%206.0pkg:rpm/suse/kernel-rt&distro=SUSE%20Linux%20Micro%206.1pkg:rpm/suse/kernel-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP7pkg:rpm/suse/kernel-source-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP7pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP7pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP7pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5-LTSSpkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP6-LTSSpkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP6pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%20LTSS%20Extended%20Security%2012%20SP5pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Micro%206.0pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Micro%206.1pkg:rpm/suse/kernel-source-rt&distro=SUSE%20Linux%20Micro%206.0pkg:rpm/suse/kernel-source-rt&distro=SUSE%20Linux%20Micro%206.1pkg:rpm/suse/kernel-source-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP7pkg:rpm/suse/kernel-syms-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP7pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP7pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5-LTSSpkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP6-LTSSpkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP6pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%20LTSS%20Extended%20Security%2012%20SP5pkg:rpm/suse/kernel-syms-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP7pkg:rpm/suse/kernel-zfcpdump&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP7pkg:rpm/suse/kernel-zfcpdump&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP6-LTSSpkg:rpm/suse/kgraft-patch-SLE12-SP5_Update_76&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2012%20SP5
< 4.14.324+ 70 more
- (no CPE)range: < 4.14.324
- (no CPE)range: < 6.4.0-150600.23.84.1
- (no CPE)range: < 6.4.0-150600.23.84.1
- (no CPE)range: < 6.4.0-150600.23.84.1
- (no CPE)range: < 6.4.0-150600.23.84.1.150600.12.38.1
- (no CPE)range: < 6.4.0-150600.23.84.1
- (no CPE)range: < 6.4.0-150600.23.84.1
- (no CPE)range: < 6.4.0-150600.23.84.1
- (no CPE)range: < 6.4.0-150600.23.84.1
- (no CPE)range: < 6.4.0-150600.23.84.1
- (no CPE)range: < 6.4.0-150600.23.84.1
- (no CPE)range: < 6.4.0-150600.23.84.1
- (no CPE)range: < 6.4.0-150600.23.84.1
- (no CPE)range: < 6.4.0-150700.53.28.1
- (no CPE)range: < 6.4.0-150600.23.84.1
- (no CPE)range: < 6.4.0-150700.20.24.1
- (no CPE)range: < 6.4.0-150700.53.28.1.150700.17.19.1
- (no CPE)range: < 6.4.0-150600.23.84.1.150600.12.38.1
- (no CPE)range: < 6.4.0-150600.23.84.1.150600.12.38.1
- (no CPE)range: < 6.4.0-39.1.21.16
- (no CPE)range: < 6.4.0-39.1.21.16
- (no CPE)range: < 6.4.0-150600.23.84.1
- (no CPE)range: < 6.4.0-150700.53.28.1
- (no CPE)range: < 4.12.14-122.290.1
- (no CPE)range: < 6.4.0-150600.23.84.1
- (no CPE)range: < 6.4.0-150700.53.28.1
- (no CPE)range: < 6.4.0-150700.53.28.1
- (no CPE)range: < 6.4.0-150700.53.28.1
- (no CPE)range: < 4.12.14-122.290.1
- (no CPE)range: < 6.4.0-150600.23.84.1
- (no CPE)range: < 6.4.0-150600.23.84.1
- (no CPE)range: < 4.12.14-122.290.1
- (no CPE)range: < 6.4.0-150700.53.28.1
- (no CPE)range: < 6.4.0-39.1
- (no CPE)range: < 6.4.0-39.1
- (no CPE)range: < 6.4.0-150700.53.28.1
- (no CPE)range: < 6.4.0-150600.23.84.1
- (no CPE)range: < 6.4.0-150600.23.84.1
- (no CPE)range: < 6.4.0-39.1
- (no CPE)range: < 6.4.0-39.1
- (no CPE)range: < 1-150600.13.3.1
- (no CPE)range: < 1-150700.1.3.1
- (no CPE)range: < 1-150700.15.3.1
- (no CPE)range: < 6.4.0-150700.53.28.1
- (no CPE)range: < 6.4.0-150600.23.84.1
- (no CPE)range: < 6.4.0-150600.23.84.1
- (no CPE)range: < 6.4.0-40.1
- (no CPE)range: < 6.4.0-40.1
- (no CPE)range: < 6.4.0-150700.7.28.1
- (no CPE)range: < 6.4.0-150700.20.24.1
- (no CPE)range: < 6.4.0-150700.53.28.1
- (no CPE)range: < 6.4.0-150700.53.28.1
- (no CPE)range: < 4.12.14-122.290.1
- (no CPE)range: < 6.4.0-150600.23.84.1
- (no CPE)range: < 6.4.0-150600.23.84.1
- (no CPE)range: < 4.12.14-122.290.1
- (no CPE)range: < 6.4.0-39.1
- (no CPE)range: < 6.4.0-39.1
- (no CPE)range: < 6.4.0-40.1
- (no CPE)range: < 6.4.0-40.1
- (no CPE)range: < 6.4.0-150700.7.28.1
- (no CPE)range: < 6.4.0-150700.20.24.1
- (no CPE)range: < 6.4.0-150700.53.28.1
- (no CPE)range: < 4.12.14-122.290.1
- (no CPE)range: < 6.4.0-150600.23.84.1
- (no CPE)range: < 6.4.0-150600.23.84.1
- (no CPE)range: < 4.12.14-122.290.1
- (no CPE)range: < 6.4.0-150700.7.28.1
- (no CPE)range: < 6.4.0-150700.53.28.1
- (no CPE)range: < 6.4.0-150600.23.84.1
- (no CPE)range: < 1-8.7.1
Patches
Vulnerability mechanics
References
8- git.kernel.org/stable/c/0c05493341d6f2097f75f0a5dbb7b53a9e8c5f6cnvd
- git.kernel.org/stable/c/18e27df4f2b4e257c317ba8076f31a888f6cc64bnvd
- git.kernel.org/stable/c/375806616f8c772c33d40e112530887b37c1a816nvd
- git.kernel.org/stable/c/66f3e55960698c874b0598277913b478ecd29573nvd
- git.kernel.org/stable/c/720a297b334e85d34099e83d1f375b92c3efedd6nvd
- git.kernel.org/stable/c/b653289ca6460a6552c8590b75dfa84a0140a46bnvd
- git.kernel.org/stable/c/bd70d0b28010d560a8be96b44fea86fe2ba016aenvd
- git.kernel.org/stable/c/dfe2aeb226fd5e19b0ee795f4f6ed8bc494c1534nvd
News mentions
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