SUSE: CVE-2024-36916: SUSE Linux Security Advisory

SUSE: CVE-2024-36916: SUSE Linux Security Advisory

Severity

4

CVSS

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

Published

05/30/2024

Created

07/10/2024

Added

07/10/2024

Modified

08/28/2024

Description

In the Linux kernel, the following vulnerability has been resolved: blk-iocost: avoid out of bounds shift UBSAN catches undefined behavior in blk-iocost, where sometimes iocg->delay is shifted right by a number that is too large, resulting in undefined behavior on some architectures. [186.556576] ------------[ cut here ]------------ UBSAN: shift-out-of-bounds in block/blk-iocost.c:1366:23 shift exponent 64 is too large for 64-bit type 'u64' (aka 'unsigned long long') CPU: 16 PID: 0 Comm: swapper/16 Tainted: G SEN 6.9.0-0_fbk700_debug_rc2_kbuilder_0_gc85af715cac0 #1 Hardware name: Quanta Twin Lakes MP/Twin Lakes Passive MP, BIOS F09_3A23 12/08/2020 Call Trace: <IRQ> dump_stack_lvl+0x8f/0xe0 __ubsan_handle_shift_out_of_bounds+0x22c/0x280 iocg_kick_delay+0x30b/0x310 ioc_timer_fn+0x2fb/0x1f80 __run_timer_base+0x1b6/0x250 ... Avoid that undefined behavior by simply taking the "delay = 0" branch if the shift is too large. I am not sure what the symptoms of an undefined value delay will be, but I suspect it could be more than a little annoying to debug.

Solution(s)

• suse-upgrade-cluster-md-kmp-64kb
• suse-upgrade-cluster-md-kmp-azure
• suse-upgrade-cluster-md-kmp-default
• suse-upgrade-cluster-md-kmp-rt
• suse-upgrade-dlm-kmp-64kb
• suse-upgrade-dlm-kmp-azure
• suse-upgrade-dlm-kmp-default
• suse-upgrade-dlm-kmp-rt
• suse-upgrade-dtb-allwinner
• suse-upgrade-dtb-altera
• suse-upgrade-dtb-amazon
• suse-upgrade-dtb-amd
• suse-upgrade-dtb-amlogic
• suse-upgrade-dtb-apm
• suse-upgrade-dtb-apple
• suse-upgrade-dtb-arm
• suse-upgrade-dtb-broadcom
• suse-upgrade-dtb-cavium
• suse-upgrade-dtb-exynos
• suse-upgrade-dtb-freescale
• suse-upgrade-dtb-hisilicon
• suse-upgrade-dtb-lg
• suse-upgrade-dtb-marvell
• suse-upgrade-dtb-mediatek
• suse-upgrade-dtb-nvidia
• suse-upgrade-dtb-qcom
• suse-upgrade-dtb-renesas
• suse-upgrade-dtb-rockchip
• suse-upgrade-dtb-socionext
• suse-upgrade-dtb-sprd
• suse-upgrade-dtb-xilinx
• suse-upgrade-gfs2-kmp-64kb
• suse-upgrade-gfs2-kmp-azure
• suse-upgrade-gfs2-kmp-default
• suse-upgrade-gfs2-kmp-rt
• suse-upgrade-kernel-64kb
• suse-upgrade-kernel-64kb-devel
• suse-upgrade-kernel-64kb-extra
• suse-upgrade-kernel-64kb-livepatch-devel
• suse-upgrade-kernel-64kb-optional
• suse-upgrade-kernel-azure
• suse-upgrade-kernel-azure-devel
• suse-upgrade-kernel-azure-extra
• suse-upgrade-kernel-azure-livepatch-devel
• suse-upgrade-kernel-azure-optional
• suse-upgrade-kernel-azure-vdso
• suse-upgrade-kernel-debug
• suse-upgrade-kernel-debug-devel
• suse-upgrade-kernel-debug-livepatch-devel
• suse-upgrade-kernel-debug-vdso
• suse-upgrade-kernel-default
• suse-upgrade-kernel-default-base
• suse-upgrade-kernel-default-base-rebuild
• suse-upgrade-kernel-default-devel
• suse-upgrade-kernel-default-extra
• suse-upgrade-kernel-default-livepatch
• suse-upgrade-kernel-default-livepatch-devel
• suse-upgrade-kernel-default-optional
• suse-upgrade-kernel-default-vdso
• suse-upgrade-kernel-devel
• suse-upgrade-kernel-devel-azure
• suse-upgrade-kernel-devel-rt
• suse-upgrade-kernel-docs
• suse-upgrade-kernel-docs-html
• suse-upgrade-kernel-kvmsmall
• suse-upgrade-kernel-kvmsmall-devel
• suse-upgrade-kernel-kvmsmall-livepatch-devel
• suse-upgrade-kernel-kvmsmall-vdso
• suse-upgrade-kernel-macros
• suse-upgrade-kernel-obs-build
• suse-upgrade-kernel-obs-qa
• suse-upgrade-kernel-rt
• suse-upgrade-kernel-rt-devel
• suse-upgrade-kernel-rt-extra
• suse-upgrade-kernel-rt-livepatch
• suse-upgrade-kernel-rt-livepatch-devel
• suse-upgrade-kernel-rt-optional
• suse-upgrade-kernel-rt-vdso
• suse-upgrade-kernel-rt_debug
• suse-upgrade-kernel-rt_debug-devel
• suse-upgrade-kernel-rt_debug-livepatch-devel
• suse-upgrade-kernel-rt_debug-vdso
• suse-upgrade-kernel-source
• suse-upgrade-kernel-source-azure
• suse-upgrade-kernel-source-rt
• suse-upgrade-kernel-source-vanilla
• suse-upgrade-kernel-syms
• suse-upgrade-kernel-syms-azure
• suse-upgrade-kernel-syms-rt
• suse-upgrade-kernel-zfcpdump
• suse-upgrade-kselftests-kmp-64kb
• suse-upgrade-kselftests-kmp-azure
• suse-upgrade-kselftests-kmp-default
• suse-upgrade-kselftests-kmp-rt
• suse-upgrade-ocfs2-kmp-64kb
• suse-upgrade-ocfs2-kmp-azure
• suse-upgrade-ocfs2-kmp-default
• suse-upgrade-ocfs2-kmp-rt
• suse-upgrade-reiserfs-kmp-64kb
• suse-upgrade-reiserfs-kmp-azure
• suse-upgrade-reiserfs-kmp-default
• suse-upgrade-reiserfs-kmp-rt

References

• https://attackerkb.com/topics/cve-2024-36916
• CVE - 2024-36916