CVE-2026-31747
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)
comedi: me4000: Fix potential overrun of firmware buffer
In the Linux kernel, the following vulnerability has been resolved: comedi: me4000: Fix potential overrun of firmware buffer `me4000_xilinx_download()` loads the firmware that was requested by `request_firmware()`. It is possible for it to overrun the source buffer because it blindly trusts the file format. It reads a data stream length from the first 4 bytes into variable `file_length` and reads the data stream contents of length `file_length` from offset 16 onwards. Add a test to ensure that the supplied firmware is long enough to contain the header and the data stream. On failure, log an error and return `-EINVAL`. Note: The firmware loading was totally broken before commit ac584af59945 ("staging: comedi: me4000: fix firmware downloading"), but that is the most sensible target for this fix.
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) |
|---|---|---|---|---|---|
| ac584af599452748187cf6d7865b1607c54ee443 | affected | git | 8ddfe6495c245226a30d8b36e2f4a7aa7712e8d6 | Unavailable | None listed |
| ac584af599452748187cf6d7865b1607c54ee443 | affected | git | 64b24b713e1a3ea6624480594b4f8c2ff86502f2 | Unavailable | None listed |
| ac584af599452748187cf6d7865b1607c54ee443 | affected | git | f72b5567f7c117b46b4058dc6a0c7554f8565561 | Unavailable | None listed |
| ac584af599452748187cf6d7865b1607c54ee443 | affected | git | 1603dd471f47762e9d1f52304edb3e49a7e62655 | Unavailable | None listed |
| ac584af599452748187cf6d7865b1607c54ee443 | affected | git | 99f31aa98ab6e3805c455b65bcd01b3d48bdf1a5 | Unavailable | None listed |
| ac584af599452748187cf6d7865b1607c54ee443 | affected | git | eae19cab44204537f79146f15a51811b13227c38 | Unavailable | None listed |
| ac584af599452748187cf6d7865b1607c54ee443 | affected | git | de3f923ae7d91480ed3ecea1b1e1fc0dc25b597d | Unavailable | None listed |
| ac584af599452748187cf6d7865b1607c54ee443 | affected | git | 3fb43a7a5b44713f892c58ead2e5f3a1bc9f4ee7 | 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) |
|---|---|---|---|---|---|
| 3.19 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 3.19 | Unavailable | None listed |
| 5.10.253 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.203 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.168 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.134 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.81 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.22 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 6.19.12 | unaffected | semver | Unavailable | 6.19.* | None listed |
| 7.0 | unaffected | original_commit_for_fix | Unavailable | * | None listed |