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CVE-2023-53285— ext4: add bounds checking in get_max_inline_xattr_value_size()

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，该漏洞源于未对get_max_inline_xattr_value_size函数进行边界检查，可能导致读取超出分配内存范围。

CVSS 7.1 · High EPSS 0.16% · P5

Possible ATT&CK Techniques 1 AI

T1083 · File and Directory Discovery

Affected Version Matrix 20

VendorProduct Version RangeStatus
Linux Linux 67cf5b09a46f72e048501b84996f2f77bc42e947< 5a229d21b98d132673096710e8281ef522dab1d1 affected
67cf5b09a46f72e048501b84996f2f77bc42e947< 3d7b8fbcd2273e2b9f4c6de5ce2f4c0cd3cb1205 affected
67cf5b09a46f72e048501b84996f2f77bc42e947< 486efbbc9445dca7890a1b86adbccb88b91284b0 affected
67cf5b09a46f72e048501b84996f2f77bc42e947< 4597554b4f7b29e7fd78aa449bab648f8da4ee2c affected
67cf5b09a46f72e048501b84996f2f77bc42e947< f22b274429e88d3dc7e79d375b56ce4f2f59f0b4 affected
67cf5b09a46f72e048501b84996f2f77bc42e947< 1d2caddbeeee56fbbc36b428c5b909c3ad88eb7f affected
67cf5b09a46f72e048501b84996f2f77bc42e947< e780058bd75614b66882bc02620ddbd884171560 affected
67cf5b09a46f72e048501b84996f2f77bc42e947< 88a06a94942c5c0a896e9da1113a6bb29e36cbef affected
… +12 more rows
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I. Basic Information for CVE-2023-53285

Vulnerability Information
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Vulnerability Title
ext4: add bounds checking in get_max_inline_xattr_value_size()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: ext4: add bounds checking in get_max_inline_xattr_value_size() Normally the extended attributes in the inode body would have been checked when the inode is first opened, but if someone is writing to the block device while the file system is mounted, it's possible for the inode table to get corrupted. Add bounds checking to avoid reading beyond the end of allocated memory if this happens.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/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，该漏洞源于未对get_max_inline_xattr_value_size函数进行边界检查，可能导致读取超出分配内存范围。
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 67cf5b09a46f72e048501b84996f2f77bc42e947 ~ 5a229d21b98d132673096710e8281ef522dab1d1 -
Linux Linux 3.8 -

II. Public POCs for CVE-2023-53285

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III. Intelligence Information for CVE-2023-53285

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Same Patch Batch · Linux · 2025-09-16 · 115 CVEs total

CVE-2022-50350 9.8 CRITICAL scsi: target: iscsi: Fix a race condition between login_work and the login thread
CVE-2025-39806 8.8 HIGH HID: multitouch: fix slab out-of-bounds access in mt_report_fixup()
CVE-2023-53305 8.8 HIGH Bluetooth: L2CAP: Fix use-after-free
CVE-2025-39827 8.8 HIGH net: rose: include node references in rose_neigh refcount
CVE-2025-39826 8.8 HIGH net: rose: convert 'use' field to refcount_t
CVE-2023-53297 8.8 HIGH Bluetooth: L2CAP: fix "bad unlock balance" in l2cap_disconnect_rsp
CVE-2023-53315 8.8 HIGH wifi: ath11k: Fix SKB corruption in REO destination ring
CVE-2023-53322 8.8 HIGH scsi: qla2xxx: Wait for io return on terminate rport
CVE-2025-39809 8.4 HIGH HID: intel-thc-hid: intel-quicki2c: Fix ACPI dsd ICRS/ISUB length
CVE-2023-53333 8.2 HIGH netfilter: conntrack: dccp: copy entire header to stack buffer, not just basic one
CVE-2025-39818 7.8 HIGH HID: intel-thc-hid: intel-thc: Fix incorrect pointer arithmetic in I2C regs save
CVE-2025-39810 7.8 HIGH bnxt_en: Fix memory corruption when FW resources change during ifdown
CVE-2023-53311 7.8 HIGH nilfs2: fix use-after-free of nilfs_root in dirtying inodes via iput
CVE-2023-53314 7.8 HIGH fbdev/ep93xx-fb: Do not assign to struct fb_info.dev
CVE-2025-39815 7.8 HIGH RISC-V: KVM: fix stack overrun when loading vlenb
CVE-2023-53286 7.8 HIGH RDMA/mlx5: Return the firmware result upon destroying QP/RQ
CVE-2022-50341 7.8 HIGH cifs: fix oops during encryption
CVE-2023-53263 7.8 HIGH drm/nouveau/disp: fix use-after-free in error handling of nouveau_connector_create
CVE-2025-39836 7.8 HIGH efi: stmm: Fix incorrect buffer allocation method
CVE-2023-53331 7.8 HIGH pstore/ram: Check start of empty przs during init

Showing top 20 of 115 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2023-53285

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