CVE-2026-98201
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
Input: zero ff_effect before compat copy in input_ff_effect_from_user
In the Linux kernel, the following vulnerability has been resolved: Input: zero ff_effect before compat copy in input_ff_effect_from_user In the compat path input_ff_effect_from_user() aliases the caller's native struct ff_effect with the smaller struct ff_effect_compat and copies only the compat sized prefix: compat_effect = (struct ff_effect_compat *)effect; if (copy_from_user(compat_effect, buffer, sizeof(struct ff_effect_compat))) The tail of the native structure is never written. Callers pass an uninitialized on-stack object, for example evdev_do_ioctl() for EVIOCSFF, so those bytes keep their previous stack contents. input_ff_upload() then stores the full native structure in ff->effects[id], from where a uinput based force feedback daemon can read it back via UI_BEGIN_FF_UPLOAD, disclosing kernel stack memory to userspace. Zero the effect before the compat copy.
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) |
|---|---|---|---|---|---|
| 2d56f3a32c0e62f99c043d2579840f9731fe5855 | affected | git | ed0905fda39682d3da7937184397d3276abbffa8 | Unavailable | None listed |
| 2d56f3a32c0e62f99c043d2579840f9731fe5855 | affected | git | ec174c2ab1abb76b20fa167c6db848c3d97aa838 | Unavailable | None listed |
| 2d56f3a32c0e62f99c043d2579840f9731fe5855 | affected | git | 6c26681c5668c973bd0e951407d670ac60d9cd66 | Unavailable | None listed |
| 2d56f3a32c0e62f99c043d2579840f9731fe5855 | affected | git | c5e573bb095d502be7cbbaa99c26a20984111c6d | Unavailable | None listed |
| 2d56f3a32c0e62f99c043d2579840f9731fe5855 | affected | git | b878720e8bcaa4cf7163a5081f904dd6baf11b2c | Unavailable | None listed |
| 2d56f3a32c0e62f99c043d2579840f9731fe5855 | affected | git | 0d05b43b55d4784a42ce8fb318175f8ad7d9af5a | Unavailable | None listed |
| 2d56f3a32c0e62f99c043d2579840f9731fe5855 | affected | git | ed0406e490f48ed180df140fe2a81be26bccb1a9 | Unavailable | None listed |
| 2d56f3a32c0e62f99c043d2579840f9731fe5855 | affected | git | f84819ef8d66931ee3998fee3c4f03230f4cb6cc | 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) |
|---|---|---|---|---|---|
| 2.6.29 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 2.6.29 | Unavailable | None listed |
| 5.10.271 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.222 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.189 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.158 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.112 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.54 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.2.8 | unaffected | semver | Unavailable | 7.2.* | None listed |
| 7.3 | unaffected | original_commit_for_fix | Unavailable | * | None listed |