CVE-2026-89941
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)
iio: buffer: Make IIO DMA fence release RCU-safe
In the Linux kernel, the following vulnerability has been resolved: iio: buffer: Make IIO DMA fence release RCU-safe The `dma_fence` documentation states that if a custom release implementation is provided, the `dma_fence` object must be freed in an RCU-safe way. The current `iio_dma_fence` implementation uses `kfree()`, which might result in a use-after-free. Remove the custom `release` implementation. This makes the DMA fence core fall back to `dma_fence_free()`, which calls `kfree_rcu()` on the fence. This requires that the fence be the first member of `struct iio_dma_fence`. Using the default release method for extended DMA fence structures is a common pattern.
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) |
|---|---|---|---|---|---|
| 3e26d9f08fbe0b73e951a5e810fdb7a332b7e37f | affected | git | 311595dc0b5621f74d8eb4dc38ef4efcdfe7e769 | Unavailable | None listed |
| 3e26d9f08fbe0b73e951a5e810fdb7a332b7e37f | affected | git | 06a9460b8b792e109cbc934a856d02e5cff217ef | Unavailable | None listed |
| 3e26d9f08fbe0b73e951a5e810fdb7a332b7e37f | affected | git | 11cef99491117d4264603df159c4ff5f3845a059 | Unavailable | None listed |
| 3e26d9f08fbe0b73e951a5e810fdb7a332b7e37f | affected | git | 8662e56c31cf23b61ca3d11b516efb94c35b8026 | 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) |
|---|---|---|---|---|---|
| 6.11 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 6.11 | Unavailable | None listed |
| 6.12.110 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.51 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.2.5 | unaffected | semver | Unavailable | 7.2.* | None listed |
| 7.3 | unaffected | original_commit_for_fix | Unavailable | * | None listed |