CVE-2025-38481
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)
comedi: Fail COMEDI_INSNLIST ioctl if n_insns is too large
In the Linux kernel, the following vulnerability has been resolved: comedi: Fail COMEDI_INSNLIST ioctl if n_insns is too large The handling of the `COMEDI_INSNLIST` ioctl allocates a kernel buffer to hold the array of `struct comedi_insn`, getting the length from the `n_insns` member of the `struct comedi_insnlist` supplied by the user. The allocation will fail with a WARNING and a stack dump if it is too large. Avoid that by failing with an `-EINVAL` error if the supplied `n_insns` value is unreasonable. Define the limit on the `n_insns` value in the `MAX_INSNS` macro. Set this to the same value as `MAX_SAMPLES` (65536), which is the maximum allowed sum of the values of the member `n` in the array of `struct comedi_insn`, and sensible comedi instructions will have an `n` of at least 1.
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) |
|---|---|---|---|---|---|
| ed9eccbe8970f6eedc1b978c157caf1251a896d4 | affected | git | 454d732dfd0aef7d7aa950c409215ca06d717e93 | Unavailable | None listed |
| ed9eccbe8970f6eedc1b978c157caf1251a896d4 | affected | git | c68257588e87f45530235701a42496b7e9e56adb | Unavailable | None listed |
| ed9eccbe8970f6eedc1b978c157caf1251a896d4 | affected | git | 69dc06b9514522de532e997a21d035cd29b0db44 | Unavailable | None listed |
| ed9eccbe8970f6eedc1b978c157caf1251a896d4 | affected | git | d4c73ce13f5b5a0fe0319f1f352ff602f0ace8e3 | Unavailable | None listed |
| ed9eccbe8970f6eedc1b978c157caf1251a896d4 | affected | git | c9d3d9667443caafa804cd07940aeaef8e53aa90 | Unavailable | None listed |
| ed9eccbe8970f6eedc1b978c157caf1251a896d4 | affected | git | 992d600f284e719242a434166e86c1999649b71c | Unavailable | None listed |
| ed9eccbe8970f6eedc1b978c157caf1251a896d4 | affected | git | e3b8322cc8081d142ee4c1a43e1d702bdba1ed76 | Unavailable | None listed |
| ed9eccbe8970f6eedc1b978c157caf1251a896d4 | affected | git | 08ae4b20f5e82101d77326ecab9089e110f224cc | 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 |
| 5.4.297 | unaffected | semver | Unavailable | 5.4.* | None listed |
| 5.10.241 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.190 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.147 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.100 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.40 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.15.8 | unaffected | semver | Unavailable | 6.15.* | None listed |
| 6.16 | unaffected | original_commit_for_fix | Unavailable | * | None listed |