CVE-2021-47364
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2021
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
comedi: Fix memory leak in compat_insnlist()
In the Linux kernel, the following vulnerability has been resolved: comedi: Fix memory leak in compat_insnlist() `compat_insnlist()` handles the 32-bit version of the `COMEDI_INSNLIST` ioctl (whenwhen `CONFIG_COMPAT` is enabled). It allocates memory to temporarily hold an array of `struct comedi_insn` converted from the 32-bit version in user space. This memory is only being freed if there is a fault while filling the array, otherwise it is leaked. Add a call to `kfree()` to fix the leak.
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) |
|---|---|---|---|---|---|
| b8d47d8813055ce38c0d2ad913d5462017e52692 | affected | git | 8d6a21e4cd6a319b0662cbe4ad6199e276ac776a | Unavailable | None listed |
| b8d47d8813055ce38c0d2ad913d5462017e52692 | affected | git | f217b6c1e28ed0b353634ce4d92a155b80bd1671 | Unavailable | None listed |
| b8d47d8813055ce38c0d2ad913d5462017e52692 | affected | git | bb509a6ffed2c8b0950f637ab5779aa818ed1596 | 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) |
|---|---|---|---|---|---|
| 5.8 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.8 | Unavailable | None listed |
| 5.10.70 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.14.9 | unaffected | semver | Unavailable | 5.14.* | None listed |
| 5.15 | unaffected | original_commit_for_fix | Unavailable | * | None listed |