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CVE-2024-38663— blk-cgroup: fix list corruption from resetting io stat

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于 blk-cgroup 中存在列表损坏。

CVSS 7.8 · High EPSS 0.26% · P17

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 8

VendorProduct Version RangeStatus
Linux Linux 3b8cc6298724021da845f2f9fd7dd4b6829a6817< d4a60298ac34f027a09f8f893fdbd9e06279bb24 affected
3b8cc6298724021da845f2f9fd7dd4b6829a6817< 89bb36c72e1951843f9e04dc84412e31fcc849a9 affected
3b8cc6298724021da845f2f9fd7dd4b6829a6817< 6da6680632792709cecf2b006f2fe3ca7857e791 affected
6.2 affected
< 6.2 unaffected
6.6.33≤ 6.6.* unaffected
6.9.4≤ 6.9.* unaffected
6.10≤ * unaffected
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I. Basic Information for CVE-2024-38663

Vulnerability Information
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Vulnerability Title
blk-cgroup: fix list corruption from resetting io stat
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: blk-cgroup: fix list corruption from resetting io stat Since commit 3b8cc6298724 ("blk-cgroup: Optimize blkcg_rstat_flush()"), each iostat instance is added to blkcg percpu list, so blkcg_reset_stats() can't reset the stat instance by memset(), otherwise the llist may be corrupted. Fix the issue by only resetting the counter part.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于 blk-cgroup 中存在列表损坏。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux 3b8cc6298724021da845f2f9fd7dd4b6829a6817 ~ d4a60298ac34f027a09f8f893fdbd9e06279bb24 -
Linux Linux 6.2 -

II. Public POCs for CVE-2024-38663

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III. Intelligence Information for CVE-2024-38663

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Other References for CVE-2024-38663 (3)

Same Patch Batch · Linux · 2024-06-24 · 14 CVEs total

CVE-2024-38384 7.8 HIGH blk-cgroup: fix list corruption from reorder of WRITE ->lqueued
CVE-2024-39292 7.8 HIGH um: Add winch to winch_handlers before registering winch IRQ
CVE-2024-32936 7.8 HIGH media: ti: j721e-csi2rx: Fix races while restarting DMA
CVE-2024-34027 7.8 HIGH f2fs: compress: fix to cover {reserve,release}_compress_blocks() w/ cp_rwsem lock
CVE-2024-33847 7.1 HIGH f2fs: compress: don't allow unaligned truncation on released compress inode
CVE-2024-38664 drm: zynqmp_dpsub: Always register bridge
CVE-2024-38667 riscv: prevent pt_regs corruption for secondary idle threads
CVE-2024-39291 drm/amdgpu: Fix buffer size in gfx_v9_4_3_init_ cp_compute_microcode() and rlc_microcode()
CVE-2024-34030 PCI: of_property: Return error for int_map allocation failure
CVE-2024-35247 fpga: region: add owner module and take its refcount
CVE-2024-36479 fpga: bridge: add owner module and take its refcount
CVE-2024-37021 fpga: manager: add owner module and take its refcount
CVE-2024-37026 drm/xe: Only use reserved BCS instances for usm migrate exec queue

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-38663

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