CVEvulnerability
CVE-2025-40200
- Status
- Deferred
- Published
- 2025-11-12
- Last modified
- 2026-10-19
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
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/2871c74caa3f4f05b429e6bfefebac62dbf1b408 git.kernel.org
- https://git.kernel.org/stable/c/54170057a5fadd24a37b70de41e61d39284d9bd7 git.kernel.org
- https://git.kernel.org/stable/c/8118f66124895829443d09c207e654adcb2f9321 git.kernel.org
- https://git.kernel.org/stable/c/875fb3f87ae0225b881319ba016a1a8c4ffd5812 git.kernel.org
- https://git.kernel.org/stable/c/8c7aad76751816207fee556d44aa88a710824810 git.kernel.org
- https://git.kernel.org/stable/c/9f1c14c1de1bdde395f6cc893efa4f80a2ae3b2b git.kernel.org
- https://git.kernel.org/stable/c/f271155ff31aca8ef82c61c8df23ca97e9a77dd4 git.kernel.org
- https://git.kernel.org/stable/c/fbfc745db628de31f5c089147deeb87e95b89e66 git.kernel.org