Use-after-free in Linux kernel - CVE-2026-53256
Published: June 26, 2026
Vulnerability details
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to a use-after-free in rfcomm_connect_ind() and rfcomm_get_sock_by_channel() when handling RFCOMM connection indications for a listener socket during a concurrent close. A remote attacker can trigger a race condition to cause a denial of service.
The issue occurs in the Linux kernel Bluetooth RFCOMM socket handling path when a listener socket is closed while a child socket is being queued, and KASAN reported the resulting slab-use-after-free in lock_sock_nested().
Affected software
SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME
SUSE Linux Enterprise Server 15 SP6
SUSE Linux Enterprise Server 11
SUSE Linux Enterprise High Availability Extension 15
SUSE Linux Enterprise Real Time 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise Workstation Extension 15
SUSE Linux Enterprise Desktop 15
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux for Real Time for NFV
Red Hat Enterprise Linux for Real Time
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for ARM 64
Red Hat CodeReady Linux Builder for ARM 64
Red Hat CodeReady Linux Builder for x86_64
Red Hat CodeReady Linux Builder for Power, little endian
SUSE Linux Enterprise Live Patching
Legacy Module
SUSE Real Time Module
Basesystem Module
Development Tools Module
Public Cloud Module
openSUSE Leap
openEuler
Ubuntu
kernel-livepatch-SLE15-SP6_Update_29-debugsource
kernel-livepatch-6_4_0-150600_23_125-default
kernel-livepatch-6_4_0-150600_23_125-default-debuginfo
kernel-livepatch-6_4_0-150700_7_67-rt
kernel-livepatch-SLE15-SP7-RT_Update_18-debugsource
kernel-livepatch-6_4_0-150700_7_67-rt-debuginfo
kernel-livepatch-SLE15-SP7_Update_19-debugsource
kernel-livepatch-6_4_0-150700_53_73-default
kernel-livepatch-6_4_0-150700_53_73-default-debuginfo
kernel-trace-devel
kernel-default-debuginfo
kernel-xen-devel-debuginfo
kernel-ec2-base
kernel-xen-base
kernel-trace-debuginfo
kernel-trace-base
kernel-default-base
kernel-xen-devel
kernel-trace-debugsource
kernel-ec2-devel-debuginfo
kernel-ec2-devel
kernel-default-devel
kernel-xen-debugsource
kernel-default-devel-debuginfo
kernel-ec2-debugsource
kernel-default-debugsource
kernel-xen-debuginfo
kernel-source
kernel-trace-devel-debuginfo
kernel-ec2-debuginfo
kernel-syms
kernel-ec2
kernel-trace
kernel-default
kernel-xen
kernel-docs
kernel (Red Hat package)
kernel-rt (Red Hat package)
kernel
python3-perf
bpftool
bpftool-debuginfo
python3-perf-debuginfo
kernel-debuginfo
kernel-debugsource
kernel-devel
kernel-headers
kernel-tools
kernel-tools-debuginfo
kernel-tools-devel
perf
perf-debuginfo
kernel-default-extra
kernel-default-livepatch-devel
kernel-kvmsmall
kernel-kvmsmall-devel-debuginfo
kernel-zfcpdump
kernel-docs-html
kernel-macros
kernel-source-vanilla
kernel-kvmsmall-debugsource
kernel-kvmsmall-debuginfo
kernel-kvmsmall-devel
gfs2-kmp-default
kernel-debug
kernel-default-vdso-debuginfo
kernel-debug-vdso
kernel-default-vdso
kernel-kvmsmall-vdso-debuginfo
kernel-kvmsmall-vdso
kernel-debug-vdso-debuginfo
kernel-zfcpdump-debugsource
kernel-zfcpdump-debuginfo
kernel-64kb
dtb-aarch64
kernel-debug-debuginfo
kernel-debug-devel
kernel-debug-devel-debuginfo
kernel-debug-debugsource
kselftests-kmp-64kb
reiserfs-kmp-64kb-debuginfo
ocfs2-kmp-64kb-debuginfo
kernel-64kb-debugsource
dtb-renesas
dtb-arm
kernel-64kb-devel-debuginfo
dtb-broadcom
dtb-altera
ocfs2-kmp-64kb
kernel-64kb-optional
dtb-qcom
cluster-md-kmp-64kb
dtb-hisilicon
gfs2-kmp-64kb-debuginfo
dtb-allwinner
dtb-exynos
dtb-apple
dtb-amd
dtb-apm
dtb-lg
kernel-64kb-optional-debuginfo
kselftests-kmp-64kb-debuginfo
dlm-kmp-64kb
dtb-amazon
cluster-md-kmp-64kb-debuginfo
dtb-amlogic
gfs2-kmp-default-debuginfo
kernel-64kb-debuginfo
dtb-sprd
kernel-64kb-extra-debuginfo
dtb-nvidia
dtb-xilinx
dtb-mediatek
kernel-64kb-extra
dlm-kmp-default
reiserfs-kmp-default
kernel-obs-build-debugsource
kernel-obs-build
cluster-md-kmp-default-debuginfo
ocfs2-kmp-default-debuginfo
kselftests-kmp-default-debuginfo
kernel-64kb-devel
kernel-default-optional
dlm-kmp-default-debuginfo
cluster-md-kmp-default
ocfs2-kmp-default
reiserfs-kmp-default-debuginfo
kernel-obs-qa
dtb-marvell
dtb-cavium
reiserfs-kmp-64kb
dtb-freescale
dtb-rockchip
dlm-kmp-64kb-debuginfo
gfs2-kmp-64kb
dtb-socionext
kernel-default-livepatch
kernel-default-extra-debuginfo
kernel-default-optional-debuginfo
kselftests-kmp-default
kernel-default-base-rebuild
cluster-md-kmp-rt
kernel-rt-debugsource
ocfs2-kmp-rt-debuginfo
ocfs2-kmp-rt
dlm-kmp-rt
kernel-syms-rt
gfs2-kmp-rt
cluster-md-kmp-rt-debuginfo
dlm-kmp-rt-debuginfo
gfs2-kmp-rt-debuginfo
kernel-rt-devel
kernel-rt-debuginfo
kernel-devel-rt
kernel-source-rt
kernel-rt
kernel-rt-devel-debuginfo
kernel-azure-debuginfo
kernel-azure
kernel-azure-devel-debuginfo
kernel-azure-debugsource
kernel-azure-devel
linux-nvidia-tegra (Ubuntu package)
linux (Ubuntu package)
linux-azure (Ubuntu package)
linux-gcp-7.0 (Ubuntu package)
linux-oracle-7.0 (Ubuntu package)
linux-ibm (Ubuntu package)
linux-oem-7.0 (Ubuntu package)
linux-azure-7.0 (Ubuntu package)
linux-nvidia (Ubuntu package)
linux-nvidia-7.0 (Ubuntu package)
linux-raspi (Ubuntu package)
linux-nvidia-bos (Ubuntu package)
How to mitigate CVE-2026-53256
kernel-livepatch-SLE15-SP6_Update_29-debugsource - update to 1-150600.13.7.1
kernel-livepatch-6_4_0-150600_23_125-default - update to 1-150600.13.7.1
kernel-livepatch-6_4_0-150600_23_125-default-debuginfo - update to 1-150600.13.7.1
kernel-livepatch-6_4_0-150700_7_67-rt - update to 1-150700.1.5.1
kernel-livepatch-SLE15-SP7-RT_Update_18-debugsource - update to 1-150700.1.5.1
kernel-livepatch-6_4_0-150700_7_67-rt-debuginfo - update to 1-150700.1.5.1
kernel-livepatch-SLE15-SP7_Update_19-debugsource - update to 1-150700.15.3.4
kernel-livepatch-6_4_0-150700_53_73-default - update to 1-150700.15.3.4
kernel-livepatch-6_4_0-150700_53_73-default-debuginfo - update to 1-150700.15.3.4
kernel-trace-devel - update to 3.0.101-108.216.1
kernel-default-debuginfo - addressed in versions 3.0.101-108.216.1, 6.4.0-150600.23.125.1, 6.4.0-150700.53.73.2
kernel-xen-devel-debuginfo - update to 3.0.101-108.216.1
kernel-ec2-base - update to 3.0.101-108.216.1
kernel-xen-base - update to 3.0.101-108.216.1
kernel-trace-debuginfo - update to 3.0.101-108.216.1
kernel-trace-base - update to 3.0.101-108.216.1
kernel-default-base - addressed in versions 3.0.101-108.216.1, 6.4.0-150600.23.125.1.150600.12.58.3, 6.4.0-150700.53.73.2.150700.17.41.4
kernel-xen-devel - update to 3.0.101-108.216.1
kernel-trace-debugsource - update to 3.0.101-108.216.1
kernel-ec2-devel-debuginfo - update to 3.0.101-108.216.1
kernel-ec2-devel - update to 3.0.101-108.216.1
kernel-default-devel - addressed in versions 3.0.101-108.216.1, 6.4.0-150600.23.125.1, 6.4.0-150700.53.73.2
kernel-xen-debugsource - update to 3.0.101-108.216.1
kernel-default-devel-debuginfo - addressed in versions 3.0.101-108.216.1, 6.4.0-150600.23.125.1, 6.4.0-150700.53.73.2
kernel-ec2-debugsource - update to 3.0.101-108.216.1
kernel-default-debugsource - addressed in versions 3.0.101-108.216.1, 6.4.0-150600.23.125.1, 6.4.0-150700.53.73.2
kernel-xen-debuginfo - update to 3.0.101-108.216.1
kernel-source - addressed in versions 3.0.101-108.216.1, 6.4.0-150600.23.125.1, 6.4.0-150700.53.73.1
kernel-trace-devel-debuginfo - update to 3.0.101-108.216.1
kernel-ec2-debuginfo - update to 3.0.101-108.216.1
kernel-syms - addressed in versions 3.0.101-108.216.1, 6.4.0-150600.23.125.1, 6.4.0-150700.53.73.1
kernel-ec2 - update to 3.0.101-108.216.1
kernel-trace - update to 3.0.101-108.216.1
kernel-default - addressed in versions 3.0.101-108.216.1, 6.4.0-150600.23.125.1, 6.4.0-150700.53.73.2
kernel-xen - update to 3.0.101-108.216.1
kernel-docs - addressed in versions 3.0.101-108.216.1, 6.4.0-150600.23.125.1, 6.4.0-150700.53.73.1
kernel (Red Hat package) - update to 4.18.0-553.166.1.el8_10
kernel-rt (Red Hat package) - update to 4.18.0-553.166.1.rt7.507.el8_10
kernel - addressed in versions 5.10.0-328.0.0.229, 6.6.0-145.1.20.157
python3-perf - addressed in versions 5.10.0-328.0.0.229, 6.6.0-145.1.20.157
bpftool - addressed in versions 5.10.0-328.0.0.229, 6.6.0-145.1.20.157
bpftool-debuginfo - addressed in versions 5.10.0-328.0.0.229, 6.6.0-145.1.20.157
python3-perf-debuginfo - addressed in versions 5.10.0-328.0.0.229, 6.6.0-145.1.20.157
kernel-debuginfo - addressed in versions 5.10.0-328.0.0.229, 6.6.0-145.1.20.157
kernel-debugsource - addressed in versions 5.10.0-328.0.0.229, 6.6.0-145.1.20.157
kernel-devel - addressed in versions 5.10.0-328.0.0.229, 6.6.0-145.1.20.157
kernel-headers - addressed in versions 5.10.0-328.0.0.229, 6.6.0-145.1.20.157
kernel-source - addressed in versions 5.10.0-328.0.0.229, 6.6.0-145.1.20.157
kernel-tools - addressed in versions 5.10.0-328.0.0.229, 6.6.0-145.1.20.157
kernel-tools-debuginfo - addressed in versions 5.10.0-328.0.0.229, 6.6.0-145.1.20.157
kernel-tools-devel - addressed in versions 5.10.0-328.0.0.229, 6.6.0-145.1.20.157
perf - addressed in versions 5.10.0-328.0.0.229, 6.6.0-145.1.20.157
perf-debuginfo - addressed in versions 5.10.0-328.0.0.229, 6.6.0-145.1.20.157
kernel-default-extra - addressed in versions 6.4.0-150600.23.125.1, 6.4.0-150700.53.73.2
kernel-default-livepatch-devel - addressed in versions 6.4.0-150600.23.125.1, 6.4.0-150700.53.73.2
kernel-kvmsmall - update to 6.4.0-150600.23.125.1
kernel-kvmsmall-devel-debuginfo - update to 6.4.0-150600.23.125.1
kernel-zfcpdump - addressed in versions 6.4.0-150600.23.125.1, 6.4.0-150700.53.73.2
kernel-docs-html - update to 6.4.0-150600.23.125.1
kernel-devel - addressed in versions 6.4.0-150600.23.125.1, 6.4.0-150700.53.73.1
kernel-macros - addressed in versions 6.4.0-150600.23.125.1, 6.4.0-150700.53.73.1
kernel-source-vanilla - update to 6.4.0-150600.23.125.1
kernel-kvmsmall-debugsource - update to 6.4.0-150600.23.125.1
kernel-kvmsmall-debuginfo - update to 6.4.0-150600.23.125.1
kernel-kvmsmall-devel - update to 6.4.0-150600.23.125.1
gfs2-kmp-default - addressed in versions 6.4.0-150600.23.125.1, 6.4.0-150700.53.73.2
kernel-debug - update to 6.4.0-150600.23.125.1
kernel-default-vdso-debuginfo - update to 6.4.0-150600.23.125.1
kernel-debug-vdso - update to 6.4.0-150600.23.125.1
kernel-default-vdso - update to 6.4.0-150600.23.125.1
kernel-kvmsmall-vdso-debuginfo - update to 6.4.0-150600.23.125.1
kernel-kvmsmall-vdso - update to 6.4.0-150600.23.125.1
kernel-debug-vdso-debuginfo - update to 6.4.0-150600.23.125.1
kernel-zfcpdump-debugsource - addressed in versions 6.4.0-150600.23.125.1, 6.4.0-150700.53.73.2
kernel-zfcpdump-debuginfo - addressed in versions 6.4.0-150600.23.125.1, 6.4.0-150700.53.73.2
kernel-64kb - addressed in versions 6.4.0-150600.23.125.1, 6.4.0-150700.53.73.2
dtb-aarch64 - update to 6.4.0-150600.23.125.1
kernel-debug-debuginfo - update to 6.4.0-150600.23.125.1
kernel-debug-devel - update to 6.4.0-150600.23.125.1
kernel-debug-devel-debuginfo - update to 6.4.0-150600.23.125.1
kernel-debug-debugsource - update to 6.4.0-150600.23.125.1
kselftests-kmp-64kb - update to 6.4.0-150600.23.125.1
reiserfs-kmp-64kb-debuginfo - update to 6.4.0-150600.23.125.1
ocfs2-kmp-64kb-debuginfo - update to 6.4.0-150600.23.125.1
kernel-64kb-debugsource - addressed in versions 6.4.0-150600.23.125.1, 6.4.0-150700.53.73.2
dtb-renesas - update to 6.4.0-150600.23.125.1
dtb-arm - update to 6.4.0-150600.23.125.1
kernel-64kb-devel-debuginfo - addressed in versions 6.4.0-150600.23.125.1, 6.4.0-150700.53.73.2
dtb-broadcom - update to 6.4.0-150600.23.125.1
dtb-altera - update to 6.4.0-150600.23.125.1
ocfs2-kmp-64kb - update to 6.4.0-150600.23.125.1
kernel-64kb-optional - update to 6.4.0-150600.23.125.1
dtb-qcom - update to 6.4.0-150600.23.125.1
cluster-md-kmp-64kb - update to 6.4.0-150600.23.125.1
dtb-hisilicon - update to 6.4.0-150600.23.125.1
gfs2-kmp-64kb-debuginfo - update to 6.4.0-150600.23.125.1
dtb-allwinner - update to 6.4.0-150600.23.125.1
dtb-exynos - update to 6.4.0-150600.23.125.1
dtb-apple - update to 6.4.0-150600.23.125.1
dtb-amd - update to 6.4.0-150600.23.125.1
dtb-apm - update to 6.4.0-150600.23.125.1
dtb-lg - update to 6.4.0-150600.23.125.1
kernel-64kb-optional-debuginfo - update to 6.4.0-150600.23.125.1
kselftests-kmp-64kb-debuginfo - update to 6.4.0-150600.23.125.1
dlm-kmp-64kb - update to 6.4.0-150600.23.125.1
dtb-amazon - update to 6.4.0-150600.23.125.1
cluster-md-kmp-64kb-debuginfo - update to 6.4.0-150600.23.125.1
dtb-amlogic - update to 6.4.0-150600.23.125.1
gfs2-kmp-default-debuginfo - addressed in versions 6.4.0-150600.23.125.1, 6.4.0-150700.53.73.2
kernel-64kb-debuginfo - addressed in versions 6.4.0-150600.23.125.1, 6.4.0-150700.53.73.2
dtb-sprd - update to 6.4.0-150600.23.125.1
kernel-64kb-extra-debuginfo - update to 6.4.0-150600.23.125.1
dtb-nvidia - update to 6.4.0-150600.23.125.1
dtb-xilinx - update to 6.4.0-150600.23.125.1
dtb-mediatek - update to 6.4.0-150600.23.125.1
kernel-64kb-extra - update to 6.4.0-150600.23.125.1
dlm-kmp-default - addressed in versions 6.4.0-150600.23.125.1, 6.4.0-150700.53.73.2
reiserfs-kmp-default - addressed in versions 6.4.0-150600.23.125.1, 6.4.0-150700.53.73.2
kernel-obs-build-debugsource - addressed in versions 6.4.0-150600.23.125.1, 6.4.0-150700.53.73.2
kernel-obs-build - addressed in versions 6.4.0-150600.23.125.1, 6.4.0-150700.53.73.2
cluster-md-kmp-default-debuginfo - addressed in versions 6.4.0-150600.23.125.1, 6.4.0-150700.53.73.2
ocfs2-kmp-default-debuginfo - addressed in versions 6.4.0-150600.23.125.1, 6.4.0-150700.53.73.2
kselftests-kmp-default-debuginfo - update to 6.4.0-150600.23.125.1
kernel-64kb-devel - addressed in versions 6.4.0-150600.23.125.1, 6.4.0-150700.53.73.2
kernel-default-optional - update to 6.4.0-150600.23.125.1
dlm-kmp-default-debuginfo - addressed in versions 6.4.0-150600.23.125.1, 6.4.0-150700.53.73.2
cluster-md-kmp-default - addressed in versions 6.4.0-150600.23.125.1, 6.4.0-150700.53.73.2
ocfs2-kmp-default - addressed in versions 6.4.0-150600.23.125.1, 6.4.0-150700.53.73.2
reiserfs-kmp-default-debuginfo - addressed in versions 6.4.0-150600.23.125.1, 6.4.0-150700.53.73.2
kernel-obs-qa - update to 6.4.0-150600.23.125.1
dtb-marvell - update to 6.4.0-150600.23.125.1
dtb-cavium - update to 6.4.0-150600.23.125.1
reiserfs-kmp-64kb - update to 6.4.0-150600.23.125.1
dtb-freescale - update to 6.4.0-150600.23.125.1
dtb-rockchip - update to 6.4.0-150600.23.125.1
dlm-kmp-64kb-debuginfo - update to 6.4.0-150600.23.125.1
gfs2-kmp-64kb - update to 6.4.0-150600.23.125.1
dtb-socionext - update to 6.4.0-150600.23.125.1
kernel-default-livepatch - addressed in versions 6.4.0-150600.23.125.1, 6.4.0-150700.53.73.2
kernel-default-extra-debuginfo - addressed in versions 6.4.0-150600.23.125.1, 6.4.0-150700.53.73.2
kernel-default-optional-debuginfo - update to 6.4.0-150600.23.125.1
kselftests-kmp-default - update to 6.4.0-150600.23.125.1
kernel-default-base-rebuild - update to 6.4.0-150600.23.125.1.150600.12.58.3
cluster-md-kmp-rt - update to 6.4.0-150700.7.67.1
kernel-rt-debugsource - update to 6.4.0-150700.7.67.1
ocfs2-kmp-rt-debuginfo - update to 6.4.0-150700.7.67.1
ocfs2-kmp-rt - update to 6.4.0-150700.7.67.1
dlm-kmp-rt - update to 6.4.0-150700.7.67.1
kernel-syms-rt - update to 6.4.0-150700.7.67.1
gfs2-kmp-rt - update to 6.4.0-150700.7.67.1
cluster-md-kmp-rt-debuginfo - update to 6.4.0-150700.7.67.1
dlm-kmp-rt-debuginfo - update to 6.4.0-150700.7.67.1
gfs2-kmp-rt-debuginfo - update to 6.4.0-150700.7.67.1
kernel-rt-devel - update to 6.4.0-150700.7.67.1
kernel-rt-debuginfo - update to 6.4.0-150700.7.67.1
kernel-devel-rt - update to 6.4.0-150700.7.67.1
kernel-source-rt - update to 6.4.0-150700.7.67.1
kernel-rt - update to 6.4.0-150700.7.67.1
kernel-rt-devel-debuginfo - update to 6.4.0-150700.7.67.1
kernel-azure-debuginfo - update to 6.4.0-150700.53.73.2
kernel-azure - update to 6.4.0-150700.53.73.2
kernel-azure-devel-debuginfo - update to 6.4.0-150700.53.73.2
kernel-azure-debugsource - update to 6.4.0-150700.53.73.2
kernel-azure-devel - update to 6.4.0-150700.53.73.2
linux-nvidia-tegra (Ubuntu package) - update to 6.8.0-1035.38
linux (Ubuntu package) - addressed in versions 7.0.0-31.31, 7.0.0-31.31.1, 7.0.0-31.31~24.04.1, 7.0.0-1006.7, 7.0.0-1011.11~24.04.1, 7.0.0-1012.12, 7.0.0-1012.12~24.04.1
linux-azure (Ubuntu package) - addressed in versions 7.0.0-1011.11, 7.0.0-1014.14
linux-gcp-7.0 (Ubuntu package) - update to 7.0.0-1011.11~24.04.1
linux-oracle-7.0 (Ubuntu package) - update to 7.0.0-1011.11~24.04.1
linux-ibm (Ubuntu package) - update to 7.0.0-1013.13
linux-oem-7.0 (Ubuntu package) - update to 7.0.0-1013.13
linux-azure-7.0 (Ubuntu package) - update to 7.0.0-1014.14~24.04.1
linux-nvidia (Ubuntu package) - update to 7.0.0-1018.18
linux-nvidia-7.0 (Ubuntu package) - update to 7.0.0-1018.18~24.04.1
linux-raspi (Ubuntu package) - update to 7.0.0-1019.19
linux-nvidia-bos (Ubuntu package) - update to 7.0.0-2018.18
External References
- https://git.kernel.org/stable/c/1f73f92f66251065a5f39b09a47cf05ea14d3107
- https://git.kernel.org/stable/c/43c441edacf953b39517a44f5e5e10a93618b226
- https://git.kernel.org/stable/c/6f4462d12133106460d7c046b95aad2491e3fddf
- https://git.kernel.org/stable/c/8802413ce63175fb522a2bd609fb043a3550c720
- https://git.kernel.org/stable/c/a07d741c077d4e34b16458241a94d29039386553
- https://git.kernel.org/stable/c/b0e33e409715c617e2a20f46f99aa5403a14dfda
- https://git.kernel.org/stable/c/de31973ef00e5aa55496f84cf6a44bb157a34e02
- https://git.kernel.org/stable/c/f5ec76bdbeb80f75ad0be204371afffee0f8fac8
Related Security Bulletins
- Use-after-free in Linux kernel bluetooth rfcomm
- SUSE update for the Linux Kernel
- SUSE update for the Linux Kernel
- SUSE update for the Linux Kernel
- openEuler 24.03 LTS SP1 update for kernel
- openEuler 22.03 LTS SP4 update for kernel
- SUSE update for the Linux Kernel
- Ubuntu update for linux-oem-7.0
- Ubuntu update for linux
- Ubuntu update for linux-gcp-7.0
- Red Hat Enterprise Linux 8 update for kernel-rt
- Red Hat Enterprise Linux 8 update for kernel
- Ubuntu update for linux-oracle-7.0
- Ubuntu update for linux-azure
- Ubuntu update for linux-azure-7.0
- Ubuntu update for linux-nvidia
- Ubuntu update for linux-nvidia-bos
- Ubuntu update for linux-ibm
- Ubuntu update for linux-raspi
- Ubuntu update for linux-nvidia-tegra
- Ubuntu update for linux-nvidia-7.0