CVE-2025-68237
- Source
- https://cve.org/CVERecord?id=CVE-2025-68237
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-68237.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2025-68237
- Downstream
- Related
- Published
- 2025-12-16T14:08:30.940Z
- Modified
- 2026-03-13T03:59:23.411333Z
- Summary
- mtdchar: fix integer overflow in read/write ioctls
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
mtdchar: fix integer overflow in read/write ioctls
The "req.start" and "req.len" variables are u64 values that come from the user at the start of the function. We mask away the high 32 bits of "req.len" so that's capped at U32MAX but the "req.start" variable can go up to U64MAX which means that the addition can still integer overflow.
Use checkaddoverflow() to fix this bug.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/68xxx/CVE-2025-68237.json" }- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/37944f4f8199cd153fef74e95ca268020162f212
- https://git.kernel.org/stable/c/457376c6fbf0c69326a9bf1f72416225f681192b
- https://git.kernel.org/stable/c/e4185bed738da755b191aa3f2e16e8b48450e1b8
- https://git.kernel.org/stable/c/eb9361484814fb12f3b7544b33835ea67d7a6a97
- https://git.kernel.org/stable/c/f37efdd97fd1ec3e0d0f1eec279c8279e28f981e
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/68xxx/CVE-2025-68237.json
- https://nvd.nist.gov/vuln/detail/CVE-2025-68237
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced6420ac0af95dbcb2fd8452e2d551ab50e1bbad83Fixedf37efdd97fd1ec3e0d0f1eec279c8279e28f981eFixed457376c6fbf0c69326a9bf1f72416225f681192bFixedeb9361484814fb12f3b7544b33835ea67d7a6a97Fixed37944f4f8199cd153fef74e95ca268020162f212Fixede4185bed738da755b191aa3f2e16e8b48450e1b8