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CVE-2023-53722— md: raid1: fix potential OOB in raid1_remove_disk()

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，该漏洞源于未检查number变量有效性，可能导致越界写入。

AI Predicted 6.5 Difficulty: Moderate EPSS 0.21% · P11

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux b8321b68d1445f308324517e45fb0a5c2b48e271< beedf40f73939f248c81802eda08a2a8148ea13e affected
b8321b68d1445f308324517e45fb0a5c2b48e271< 91fbd4e75cb573f44d2619a9dc2f9ba927040760 affected
b8321b68d1445f308324517e45fb0a5c2b48e271< 25a68f2286be56fb3a6f9fa0e269c04b5e6c6e24 affected
b8321b68d1445f308324517e45fb0a5c2b48e271< 7993cfc041481a3a9cd4a3858088fc846b8ccaf7 affected
b8321b68d1445f308324517e45fb0a5c2b48e271< 4f96c0665f9f4cf70130c9757750dc43dc679c82 affected
b8321b68d1445f308324517e45fb0a5c2b48e271< 4f7d853b4590fc20e90dd50e346c02811a8c5b08 affected
b8321b68d1445f308324517e45fb0a5c2b48e271< 4bdb92eaf645e312975357adc3c4e9523b6e67f1 affected
b8321b68d1445f308324517e45fb0a5c2b48e271< 8b0472b50bcf0f19a5119b00a53b63579c8e1e4d affected
… +10 more rows
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I. Basic Information for CVE-2023-53722

Vulnerability Information
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Vulnerability Title
md: raid1: fix potential OOB in raid1_remove_disk()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: md: raid1: fix potential OOB in raid1_remove_disk() If rddev->raid_disk is greater than mddev->raid_disks, there will be an out-of-bounds in raid1_remove_disk(). We have already found similar reports as follows: 1) commit d17f744e883b ("md-raid10: fix KASAN warning") 2) commit 1ebc2cec0b7d ("dm raid: fix KASAN warning in raid5_remove_disk") Fix this bug by checking whether the "number" variable is valid.
Source: CVE Program / CVE List V5
CVSS Information
N/A
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，该漏洞源于未检查number变量有效性，可能导致越界写入。
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 b8321b68d1445f308324517e45fb0a5c2b48e271 ~ beedf40f73939f248c81802eda08a2a8148ea13e -
Linux Linux 3.3 -

II. Public POCs for CVE-2023-53722

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III. Intelligence Information for CVE-2023-53722

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Patches & Fixes for CVE-2023-53722 (3)

Same Patch Batch · Linux · 2025-10-22 · 67 CVEs total

CVE-2023-53711 8.2 HIGH NFS: Fix a potential data corruption
CVE-2023-53705 8.2 HIGH ipv6: Fix out-of-bounds access in ipv6_find_tlv()
CVE-2022-50567 7.8 HIGH fs: jfs: fix shift-out-of-bounds in dbAllocAG
CVE-2023-53729 7.8 HIGH soc: qcom: qmi_encdec: Restrict string length in decode
CVE-2023-53698 7.8 HIGH xsk: fix refcount underflow in error path
CVE-2023-53695 7.8 HIGH udf: Detect system inodes linked into directory hierarchy
CVE-2023-53692 7.8 HIGH ext4: fix use-after-free read in ext4_find_extent for bigalloc + inline
CVE-2023-53707 7.8 HIGH drm/amdgpu: Fix integer overflow in amdgpu_cs_pass1
CVE-2022-50570 7.8 HIGH platform/chrome: fix memory corruption in ioctl
CVE-2022-50569 7.8 HIGH xfrm: Update ipcomp_scratches with NULL when freed
CVE-2023-53718 7.8 HIGH ring-buffer: Do not swap cpu_buffer during resize process
CVE-2022-50581 7.8 HIGH hfs: fix OOB Read in __hfs_brec_find
CVE-2023-53713 7.8 HIGH arm64: sme: Use STR P to clear FFR context field in streaming SVE mode
CVE-2023-53726 7.1 HIGH arm64: csum: Fix OoB access in IP checksum code for negative lengths
CVE-2023-53716 net: fix skb leak in __skb_tstamp_tx()
CVE-2023-53708 ACPI: x86: s2idle: Catch multiple ACPI_TYPE_PACKAGE objects
CVE-2023-53706 mm/vmemmap/devdax: fix kernel crash when probing devdax devices
CVE-2023-53704 clk: imx: clk-imx8mp: improve error handling in imx8mp_clocks_probe()
CVE-2023-53712 ARM: 9317/1: kexec: Make smp stop calls asynchronous
CVE-2023-53702 s390/crypto: use vector instructions only if available for ChaCha20

Showing top 20 of 67 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2023-53722

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