CVE-2025-68237
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2025
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
mtdchar: fix integer overflow in read/write ioctls
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 U32_MAX but the "req.start" variable can go up to U64_MAX which means that the addition can still integer overflow. Use check_add_overflow() to fix this bug.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 6420ac0af95dbcb2fd8452e2d551ab50e1bbad83 | affected | git | f37efdd97fd1ec3e0d0f1eec279c8279e28f981e | Unavailable | None listed |
| 6420ac0af95dbcb2fd8452e2d551ab50e1bbad83 | affected | git | 457376c6fbf0c69326a9bf1f72416225f681192b | Unavailable | None listed |
| 6420ac0af95dbcb2fd8452e2d551ab50e1bbad83 | affected | git | eb9361484814fb12f3b7544b33835ea67d7a6a97 | Unavailable | None listed |
| 6420ac0af95dbcb2fd8452e2d551ab50e1bbad83 | affected | git | 37944f4f8199cd153fef74e95ca268020162f212 | Unavailable | None listed |
| 6420ac0af95dbcb2fd8452e2d551ab50e1bbad83 | affected | git | e4185bed738da755b191aa3f2e16e8b48450e1b8 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 5.17 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.17 | Unavailable | None listed |
| 6.1.159 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.118 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.60 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.17.10 | unaffected | semver | Unavailable | 6.17.* | None listed |
| 6.18 | unaffected | original_commit_for_fix | Unavailable | * | None listed |