SUSE: CVE-2024-38598: SUSE Linux Security Advisory

SUSE: CVE-2024-38598: SUSE Linux Security Advisory

Severity

5

CVSS

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

Published

06/19/2024

Created

07/20/2024

Added

07/19/2024

Modified

01/28/2025

Description

In the Linux kernel, the following vulnerability has been resolved: md: fix resync softlockup when bitmap size is less than array size Is is reported that for dm-raid10, lvextend + lvchange --syncaction will trigger following softlockup: kernel:watchdog: BUG: soft lockup - CPU#3 stuck for 26s! [mdX_resync:6976] CPU: 7 PID: 3588 Comm: mdX_resync Kdump: loaded Not tainted 6.9.0-rc4-next-20240419 #1 RIP: 0010:_raw_spin_unlock_irq+0x13/0x30 Call Trace: <TASK> md_bitmap_start_sync+0x6b/0xf0 raid10_sync_request+0x25c/0x1b40 [raid10] md_do_sync+0x64b/0x1020 md_thread+0xa7/0x170 kthread+0xcf/0x100 ret_from_fork+0x30/0x50 ret_from_fork_asm+0x1a/0x30 And the detailed process is as follows: md_do_sync j = mddev->resync_min while (j < max_sectors) sectors = raid10_sync_request(mddev, j, &skipped) if (!md_bitmap_start_sync(..., &sync_blocks)) // md_bitmap_start_sync set sync_blocks to 0 return sync_blocks + sectors_skippe; // sectors = 0; j += sectors; // j never change Root cause is that commit 301867b1c168 ("md/raid10: check slab-out-of-bounds in md_bitmap_get_counter") return early from md_bitmap_get_counter(), without setting returned blocks. Fix this problem by always set returned blocks from md_bitmap_get_counter"(), as it used to be. Noted that this patch just fix the softlockup problem in kernel, the case that bitmap size doesn't match array size still need to be fixed.

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-base
• 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-man
• 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-2024-38598
• CVE - 2024-38598