Use-after-free in Linux kernel - CVE-2024-49854

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Main Vulnerability Database Vulnerabilities #VU98892

Use-after-free in Linux kernel - CVE-2024-49854

Published: October 21, 2024 / Updated: May 12, 2025


Vulnerability identifier: #VU98892
CSH Severity: Low
CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2024-49854
CWE-ID: CWE-416
Exploitation vector: Local access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error within the bfq_prepare_request() and bfq_init_rq() functions in block/bfq-iosched.c. A local user can escalate privileges on the system.


Affected software

Linux kernel
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise Real Time 15
SUSE Linux Enterprise Desktop 15
SUSE Linux Enterprise High Availability Extension 15
SUSE Linux Enterprise Workstation Extension 15
SUSE Linux Enterprise Live Patching
Legacy Module
Development Tools Module
SUSE Real Time Module
Confidential Computing Module
Basesystem Module
Public Cloud Module
openSUSE Leap
SmartFabric Manager
kernel-livepatch-SLE15-SP6-RT_Update_7-debugsource
kernel-livepatch-6_4_0-150600_10_23-rt
kernel-livepatch-6_4_0-150600_10_23-rt-debuginfo
kernel-livepatch-SLE15-SP6_Update_7-debugsource
kernel-livepatch-6_4_0-150600_23_33-default
kernel-livepatch-6_4_0-150600_23_33-default-debuginfo
kernel-coco_debug-devel-debuginfo
kernel-coco
kernel-coco_debug
kernel-coco-devel
kernel-coco-debugsource
kernel-coco_debug-devel
kernel-coco-debuginfo
kernel-coco_debug-debuginfo
kernel-coco_debug-debugsource
reiserfs-kmp-coco
reiserfs-kmp-coco-debuginfo
kernel-syms-coco
kernel-coco-vdso-debuginfo
kernel-devel-coco
kernel-source-coco
cluster-md-kmp-azure-debuginfo
kernel-devel-azure
kernel-azure-extra-debuginfo
kernel-azure-vdso-debuginfo
kernel-azure-vdso
kernel-azure
kernel-source-azure
gfs2-kmp-azure
kernel-azure-debuginfo
ocfs2-kmp-azure-debuginfo
kernel-syms-azure
kernel-azure-extra
dlm-kmp-azure
kselftests-kmp-azure-debuginfo
kernel-azure-devel
gfs2-kmp-azure-debuginfo
ocfs2-kmp-azure
kselftests-kmp-azure
dlm-kmp-azure-debuginfo
kernel-azure-optional
reiserfs-kmp-azure
reiserfs-kmp-azure-debuginfo
kernel-azure-devel-debuginfo
cluster-md-kmp-azure
kernel-azure-optional-debuginfo
kernel-azure-debugsource
kselftests-kmp-rt
kernel-rt-extra-debuginfo
kernel-rt-optional
dlm-kmp-rt
kernel-rt-vdso
kernel-rt-devel
cluster-md-kmp-rt
kernel-rt-livepatch-devel
reiserfs-kmp-rt-debuginfo
kernel-rt_debug-debugsource
ocfs2-kmp-rt-debuginfo
kernel-rt-debuginfo
kernel-rt_debug-devel
kernel-rt-debugsource
kernel-rt-vdso-debuginfo
kernel-syms-rt
kernel-rt-optional-debuginfo
kernel-rt
kernel-rt_debug
kernel-devel-rt
kernel-source-rt
cluster-md-kmp-rt-debuginfo
kernel-rt-devel-debuginfo
reiserfs-kmp-rt
kernel-rt_debug-devel-debuginfo
kernel-rt_debug-vdso-debuginfo
kernel-rt_debug-debuginfo
gfs2-kmp-rt
kernel-rt-extra
kernel-rt_debug-vdso
ocfs2-kmp-rt
kselftests-kmp-rt-debuginfo
dlm-kmp-rt-debuginfo
gfs2-kmp-rt-debuginfo
dtb-xilinx
kernel-64kb-devel-debuginfo
dtb-renesas
dtb-arm
dtb-freescale
kernel-64kb-extra-debuginfo
dtb-mediatek
ocfs2-kmp-64kb-debuginfo
dtb-apple
kernel-64kb-optional
dtb-exynos
reiserfs-kmp-64kb
kselftests-kmp-64kb
dtb-sprd
dtb-rockchip
dlm-kmp-64kb-debuginfo
dlm-kmp-64kb
reiserfs-kmp-64kb-debuginfo
dtb-apm
kernel-64kb-devel
dtb-altera
kernel-64kb
kernel-64kb-debugsource
kernel-default-optional
kernel-kvmsmall-debuginfo
kernel-kvmsmall-debugsource
kernel-kvmsmall-devel
kernel-syms
ocfs2-kmp-default
dlm-kmp-default
kernel-obs-build-debugsource
kernel-default-devel
kselftests-kmp-default
kernel-kvmsmall-devel-debuginfo
kernel-default-debugsource
gfs2-kmp-default-debuginfo
reiserfs-kmp-default
dlm-kmp-default-debuginfo
cluster-md-kmp-default
ocfs2-kmp-default-debuginfo
kernel-default-devel-debuginfo
dtb-lg
kernel-debug-debugsource
kernel-docs
kernel-devel
kernel-docs-html
kernel-source
kernel-macros
kernel-source-vanilla
kernel-debug
kernel-debug-debuginfo
cluster-md-kmp-default-debuginfo
kernel-debug-devel-debuginfo
kernel-debug-devel
kernel-default-vdso
kernel-kvmsmall-vdso-debuginfo
kernel-debug-vdso
kernel-debug-vdso-debuginfo
kernel-kvmsmall-vdso
kernel-default-vdso-debuginfo
dtb-allwinner
cluster-md-kmp-64kb-debuginfo
dtb-amazon
dtb-amlogic
dtb-nvidia
dtb-marvell
dtb-hisilicon
cluster-md-kmp-64kb
kernel-64kb-extra
ocfs2-kmp-64kb
gfs2-kmp-64kb
kselftests-kmp-64kb-debuginfo
dtb-amd
dtb-broadcom
gfs2-kmp-64kb-debuginfo
dtb-qcom
dtb-cavium
kernel-64kb-optional-debuginfo
dtb-socionext
kernel-default
kselftests-kmp-default-debuginfo
kernel-obs-build
kernel-obs-qa
kernel-default-optional-debuginfo
kernel-default-livepatch
kernel-default-debuginfo
kernel-default-extra-debuginfo
reiserfs-kmp-default-debuginfo
kernel-default-extra
gfs2-kmp-default
kernel-default-livepatch-devel
kernel-kvmsmall
kernel-zfcpdump
kernel-zfcpdump-debugsource
kernel-zfcpdump-debuginfo
dtb-aarch64
kernel-64kb-debuginfo
kernel-default-base-rebuild
kernel-default-base
APEX Cloud Platform for Red Hat OpenShift

How to mitigate CVE-2024-49854

Install update from vendor's website.

Linux kernel - addressed in versions 5.15.168, 6.1.113, 6.6.54, 6.10.13, 6.11.2, 6.12
SmartFabric Manager - update to 1.2.0
kernel-livepatch-SLE15-SP6-RT_Update_7-debugsource - update to 1-150600.1.3.1
kernel-livepatch-6_4_0-150600_10_23-rt - update to 1-150600.1.3.1
kernel-livepatch-6_4_0-150600_10_23-rt-debuginfo - update to 1-150600.1.3.1
kernel-livepatch-SLE15-SP6_Update_7-debugsource - update to 1-150600.13.3.1
kernel-livepatch-6_4_0-150600_23_33-default - update to 1-150600.13.3.1
kernel-livepatch-6_4_0-150600_23_33-default-debuginfo - update to 1-150600.13.3.1
APEX Cloud Platform for Red Hat OpenShift - update to 03.02.04.00
kernel-coco_debug-devel-debuginfo - update to 6.4.0-15061.12.coco15sp6.1
kernel-coco - update to 6.4.0-15061.12.coco15sp6.1
kernel-coco_debug - update to 6.4.0-15061.12.coco15sp6.1
kernel-coco-devel - update to 6.4.0-15061.12.coco15sp6.1
kernel-coco-debugsource - update to 6.4.0-15061.12.coco15sp6.1
kernel-coco_debug-devel - update to 6.4.0-15061.12.coco15sp6.1
kernel-coco-debuginfo - update to 6.4.0-15061.12.coco15sp6.1
kernel-coco_debug-debuginfo - update to 6.4.0-15061.12.coco15sp6.1
kernel-coco_debug-debugsource - update to 6.4.0-15061.12.coco15sp6.1
reiserfs-kmp-coco - update to 6.4.0-15061.12.coco15sp6.1
reiserfs-kmp-coco-debuginfo - update to 6.4.0-15061.12.coco15sp6.1
kernel-syms-coco - update to 6.4.0-15061.12.coco15sp6.1
kernel-coco-vdso-debuginfo - update to 6.4.0-15061.12.coco15sp6.1
kernel-devel-coco - update to 6.4.0-15061.12.coco15sp6.1
kernel-source-coco - update to 6.4.0-15061.12.coco15sp6.1
cluster-md-kmp-azure-debuginfo - update to 6.4.0-150600.8.23.1
kernel-devel-azure - update to 6.4.0-150600.8.23.1
kernel-azure-extra-debuginfo - update to 6.4.0-150600.8.23.1
kernel-azure-vdso-debuginfo - update to 6.4.0-150600.8.23.1
kernel-azure-vdso - update to 6.4.0-150600.8.23.1
kernel-azure - update to 6.4.0-150600.8.23.1
kernel-source-azure - update to 6.4.0-150600.8.23.1
gfs2-kmp-azure - update to 6.4.0-150600.8.23.1
kernel-azure-debuginfo - update to 6.4.0-150600.8.23.1
ocfs2-kmp-azure-debuginfo - update to 6.4.0-150600.8.23.1
kernel-syms-azure - update to 6.4.0-150600.8.23.1
kernel-azure-extra - update to 6.4.0-150600.8.23.1
dlm-kmp-azure - update to 6.4.0-150600.8.23.1
kselftests-kmp-azure-debuginfo - update to 6.4.0-150600.8.23.1
kernel-azure-devel - update to 6.4.0-150600.8.23.1
gfs2-kmp-azure-debuginfo - update to 6.4.0-150600.8.23.1
ocfs2-kmp-azure - update to 6.4.0-150600.8.23.1
kselftests-kmp-azure - update to 6.4.0-150600.8.23.1
dlm-kmp-azure-debuginfo - update to 6.4.0-150600.8.23.1
kernel-azure-optional - update to 6.4.0-150600.8.23.1
reiserfs-kmp-azure - update to 6.4.0-150600.8.23.1
reiserfs-kmp-azure-debuginfo - update to 6.4.0-150600.8.23.1
kernel-azure-devel-debuginfo - update to 6.4.0-150600.8.23.1
cluster-md-kmp-azure - update to 6.4.0-150600.8.23.1
kernel-azure-optional-debuginfo - update to 6.4.0-150600.8.23.1
kernel-azure-debugsource - update to 6.4.0-150600.8.23.1
kselftests-kmp-rt - update to 6.4.0-150600.10.23.1
kernel-rt-extra-debuginfo - update to 6.4.0-150600.10.23.1
kernel-rt-optional - update to 6.4.0-150600.10.23.1
dlm-kmp-rt - update to 6.4.0-150600.10.23.1
kernel-rt-vdso - update to 6.4.0-150600.10.23.1
kernel-rt-devel - update to 6.4.0-150600.10.23.1
cluster-md-kmp-rt - update to 6.4.0-150600.10.23.1
kernel-rt-livepatch-devel - update to 6.4.0-150600.10.23.1
reiserfs-kmp-rt-debuginfo - update to 6.4.0-150600.10.23.1
kernel-rt_debug-debugsource - update to 6.4.0-150600.10.23.1
ocfs2-kmp-rt-debuginfo - update to 6.4.0-150600.10.23.1
kernel-rt-debuginfo - update to 6.4.0-150600.10.23.1
kernel-rt_debug-devel - update to 6.4.0-150600.10.23.1
kernel-rt-debugsource - update to 6.4.0-150600.10.23.1
kernel-rt-vdso-debuginfo - update to 6.4.0-150600.10.23.1
kernel-syms-rt - update to 6.4.0-150600.10.23.1
kernel-rt-optional-debuginfo - update to 6.4.0-150600.10.23.1
kernel-rt - update to 6.4.0-150600.10.23.1
kernel-rt_debug - update to 6.4.0-150600.10.23.1
kernel-devel-rt - update to 6.4.0-150600.10.23.1
kernel-source-rt - update to 6.4.0-150600.10.23.1
cluster-md-kmp-rt-debuginfo - update to 6.4.0-150600.10.23.1
kernel-rt-devel-debuginfo - update to 6.4.0-150600.10.23.1
reiserfs-kmp-rt - update to 6.4.0-150600.10.23.1
kernel-rt_debug-devel-debuginfo - update to 6.4.0-150600.10.23.1
kernel-rt_debug-vdso-debuginfo - update to 6.4.0-150600.10.23.1
kernel-rt_debug-debuginfo - update to 6.4.0-150600.10.23.1
gfs2-kmp-rt - update to 6.4.0-150600.10.23.1
kernel-rt-extra - update to 6.4.0-150600.10.23.1
kernel-rt_debug-vdso - update to 6.4.0-150600.10.23.1
ocfs2-kmp-rt - update to 6.4.0-150600.10.23.1
kselftests-kmp-rt-debuginfo - update to 6.4.0-150600.10.23.1
dlm-kmp-rt-debuginfo - update to 6.4.0-150600.10.23.1
gfs2-kmp-rt-debuginfo - update to 6.4.0-150600.10.23.1
dtb-xilinx - update to 6.4.0-150600.23.33.1
kernel-64kb-devel-debuginfo - update to 6.4.0-150600.23.33.1
dtb-renesas - update to 6.4.0-150600.23.33.1
dtb-arm - update to 6.4.0-150600.23.33.1
dtb-freescale - update to 6.4.0-150600.23.33.1
kernel-64kb-extra-debuginfo - update to 6.4.0-150600.23.33.1
dtb-mediatek - update to 6.4.0-150600.23.33.1
ocfs2-kmp-64kb-debuginfo - update to 6.4.0-150600.23.33.1
dtb-apple - update to 6.4.0-150600.23.33.1
kernel-64kb-optional - update to 6.4.0-150600.23.33.1
dtb-exynos - update to 6.4.0-150600.23.33.1
reiserfs-kmp-64kb - update to 6.4.0-150600.23.33.1
kselftests-kmp-64kb - update to 6.4.0-150600.23.33.1
dtb-sprd - update to 6.4.0-150600.23.33.1
dtb-rockchip - update to 6.4.0-150600.23.33.1
dlm-kmp-64kb-debuginfo - update to 6.4.0-150600.23.33.1
dlm-kmp-64kb - update to 6.4.0-150600.23.33.1
reiserfs-kmp-64kb-debuginfo - update to 6.4.0-150600.23.33.1
dtb-apm - update to 6.4.0-150600.23.33.1
kernel-64kb-devel - update to 6.4.0-150600.23.33.1
dtb-altera - update to 6.4.0-150600.23.33.1
kernel-64kb - update to 6.4.0-150600.23.33.1
kernel-64kb-debugsource - update to 6.4.0-150600.23.33.1
kernel-default-optional - update to 6.4.0-150600.23.33.1
kernel-kvmsmall-debuginfo - update to 6.4.0-150600.23.33.1
kernel-kvmsmall-debugsource - update to 6.4.0-150600.23.33.1
kernel-kvmsmall-devel - update to 6.4.0-150600.23.33.1
kernel-syms - update to 6.4.0-150600.23.33.1
ocfs2-kmp-default - update to 6.4.0-150600.23.33.1
dlm-kmp-default - update to 6.4.0-150600.23.33.1
kernel-obs-build-debugsource - update to 6.4.0-150600.23.33.1
kernel-default-devel - update to 6.4.0-150600.23.33.1
kselftests-kmp-default - update to 6.4.0-150600.23.33.1
kernel-kvmsmall-devel-debuginfo - update to 6.4.0-150600.23.33.1
kernel-default-debugsource - update to 6.4.0-150600.23.33.1
gfs2-kmp-default-debuginfo - update to 6.4.0-150600.23.33.1
reiserfs-kmp-default - update to 6.4.0-150600.23.33.1
dlm-kmp-default-debuginfo - update to 6.4.0-150600.23.33.1
cluster-md-kmp-default - update to 6.4.0-150600.23.33.1
ocfs2-kmp-default-debuginfo - update to 6.4.0-150600.23.33.1
kernel-default-devel-debuginfo - update to 6.4.0-150600.23.33.1
dtb-lg - update to 6.4.0-150600.23.33.1
kernel-debug-debugsource - update to 6.4.0-150600.23.33.1
kernel-docs - update to 6.4.0-150600.23.33.1
kernel-devel - update to 6.4.0-150600.23.33.1
kernel-docs-html - update to 6.4.0-150600.23.33.1
kernel-source - update to 6.4.0-150600.23.33.1
kernel-macros - update to 6.4.0-150600.23.33.1
kernel-source-vanilla - update to 6.4.0-150600.23.33.1
kernel-debug - update to 6.4.0-150600.23.33.1
kernel-debug-debuginfo - update to 6.4.0-150600.23.33.1
cluster-md-kmp-default-debuginfo - update to 6.4.0-150600.23.33.1
kernel-debug-devel-debuginfo - update to 6.4.0-150600.23.33.1
kernel-debug-devel - update to 6.4.0-150600.23.33.1
kernel-default-vdso - update to 6.4.0-150600.23.33.1
kernel-kvmsmall-vdso-debuginfo - update to 6.4.0-150600.23.33.1
kernel-debug-vdso - update to 6.4.0-150600.23.33.1
kernel-debug-vdso-debuginfo - update to 6.4.0-150600.23.33.1
kernel-kvmsmall-vdso - update to 6.4.0-150600.23.33.1
kernel-default-vdso-debuginfo - update to 6.4.0-150600.23.33.1
dtb-allwinner - update to 6.4.0-150600.23.33.1
cluster-md-kmp-64kb-debuginfo - update to 6.4.0-150600.23.33.1
dtb-amazon - update to 6.4.0-150600.23.33.1
dtb-amlogic - update to 6.4.0-150600.23.33.1
dtb-nvidia - update to 6.4.0-150600.23.33.1
dtb-marvell - update to 6.4.0-150600.23.33.1
dtb-hisilicon - update to 6.4.0-150600.23.33.1
cluster-md-kmp-64kb - update to 6.4.0-150600.23.33.1
kernel-64kb-extra - update to 6.4.0-150600.23.33.1
ocfs2-kmp-64kb - update to 6.4.0-150600.23.33.1
gfs2-kmp-64kb - update to 6.4.0-150600.23.33.1
kselftests-kmp-64kb-debuginfo - update to 6.4.0-150600.23.33.1
dtb-amd - update to 6.4.0-150600.23.33.1
dtb-broadcom - update to 6.4.0-150600.23.33.1
gfs2-kmp-64kb-debuginfo - update to 6.4.0-150600.23.33.1
dtb-qcom - update to 6.4.0-150600.23.33.1
dtb-cavium - update to 6.4.0-150600.23.33.1
kernel-64kb-optional-debuginfo - update to 6.4.0-150600.23.33.1
dtb-socionext - update to 6.4.0-150600.23.33.1
kernel-default - update to 6.4.0-150600.23.33.1
kselftests-kmp-default-debuginfo - update to 6.4.0-150600.23.33.1
kernel-obs-build - update to 6.4.0-150600.23.33.1
kernel-obs-qa - update to 6.4.0-150600.23.33.1
kernel-default-optional-debuginfo - update to 6.4.0-150600.23.33.1
kernel-default-livepatch - update to 6.4.0-150600.23.33.1
kernel-default-debuginfo - update to 6.4.0-150600.23.33.1
kernel-default-extra-debuginfo - update to 6.4.0-150600.23.33.1
reiserfs-kmp-default-debuginfo - update to 6.4.0-150600.23.33.1
kernel-default-extra - update to 6.4.0-150600.23.33.1
gfs2-kmp-default - update to 6.4.0-150600.23.33.1
kernel-default-livepatch-devel - update to 6.4.0-150600.23.33.1
kernel-kvmsmall - update to 6.4.0-150600.23.33.1
kernel-zfcpdump - update to 6.4.0-150600.23.33.1
kernel-zfcpdump-debugsource - update to 6.4.0-150600.23.33.1
kernel-zfcpdump-debuginfo - update to 6.4.0-150600.23.33.1
dtb-aarch64 - update to 6.4.0-150600.23.33.1
kernel-64kb-debuginfo - update to 6.4.0-150600.23.33.1
kernel-default-base-rebuild - update to 6.4.0-150600.23.33.1.150600.12.14.1
kernel-default-base - update to 6.4.0-150600.23.33.1.150600.12.14.1

External References

Related Security Bulletins