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I. Basic Information for CVE-2025-40200
Vulnerability Information

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Vulnerability Title
Squashfs: reject negative file sizes in squashfs_read_inode()
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: Squashfs: reject negative file sizes in squashfs_read_inode() Syskaller reports a "WARNING in ovl_copy_up_file" in overlayfs. This warning is ultimately caused because the underlying Squashfs file system returns a file with a negative file size. This commit checks for a negative file size and returns EINVAL. [phillip@squashfs.org.uk: only need to check 64 bit quantity]
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
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,该漏洞源于负文件大小检查不足,可能导致文件系统错误。
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
VendorProductAffected VersionsCPESubscribe
LinuxLinux 6545b246a2c815a8fcd07d58240effb6ec3481b1 ~ 54170057a5fadd24a37b70de41e61d39284d9bd7 -
LinuxLinux 2.6.29 -
II. Public POCs for CVE-2025-40200
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III. Intelligence Information for CVE-2025-40200
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IV. Related Vulnerabilities
V. Comments for CVE-2025-40200

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