CVE-2025-40200

medium

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. [[email protected]: only need to check 64 bit quantity]

References

https://git.kernel.org/stable/c/fbfc745db628de31f5c089147deeb87e95b89e66

https://git.kernel.org/stable/c/f271155ff31aca8ef82c61c8df23ca97e9a77dd4

https://git.kernel.org/stable/c/9f1c14c1de1bdde395f6cc893efa4f80a2ae3b2b

https://git.kernel.org/stable/c/8c7aad76751816207fee556d44aa88a710824810

https://git.kernel.org/stable/c/875fb3f87ae0225b881319ba016a1a8c4ffd5812

https://git.kernel.org/stable/c/8118f66124895829443d09c207e654adcb2f9321

https://git.kernel.org/stable/c/54170057a5fadd24a37b70de41e61d39284d9bd7

https://git.kernel.org/stable/c/2871c74caa3f4f05b429e6bfefebac62dbf1b408

Details

Source: Mitre, NVD

Published: 2025-11-12

Updated: 2025-11-14

Risk Information

CVSS v2

Base Score: 4.6

Vector: CVSS2#AV:L/AC:L/Au:S/C:N/I:N/A:C

Severity: Medium

CVSS v3

Base Score: 5.5

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Severity: Medium

EPSS

EPSS: 0.00024