CVE-2025-39870
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)
dmaengine: idxd: Fix double free in idxd_setup_wqs()
In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: Fix double free in idxd_setup_wqs() The clean up in idxd_setup_wqs() has had a couple bugs because the error handling is a bit subtle. It's simpler to just re-write it in a cleaner way. The issues here are: 1) If "idxd->max_wqs" is <= 0 then we call put_device(conf_dev) when "conf_dev" hasn't been initialized. 2) If kzalloc_node() fails then again "conf_dev" is invalid. It's either uninitialized or it points to the "conf_dev" from the previous iteration so it leads to a double free. It's better to free partial loop iterations within the loop and then the unwinding at the end can handle whole loop iterations. I also renamed the labels to describe what the goto does and not where the goto was located.
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) |
|---|---|---|---|---|---|
| d584acdf54f409cb7eae1359ae6c12aaabedeed8 | affected | git | 25e6146c2812487a88f619d5ff6efbdcd5b2bc31 | Unavailable | None listed |
| 47846211998a9ffb0fcc08092eb95ac783d2b11a | affected | git | df82c7901513fd0fc738052a8e6a330d92cc8ec9 | Unavailable | None listed |
| 5fcd392dae6d6aba7dc64ffdbb838ff191315da3 | affected | git | ec5430d090d0b6ace8fefa290fc37e88930017d2 | Unavailable | None listed |
| 3fd2f4bc010cdfbc07dd21018dc65bd9370eb7a4 | affected | git | 9f0e225635475b2285b966271d5e82cba74295b1 | Unavailable | None listed |
| 3fd2f4bc010cdfbc07dd21018dc65bd9370eb7a4 | affected | git | 39aaa337449e71a41d4813be0226a722827ba606 | Unavailable | None listed |
| ed2c66000aa64c0d2621864831f0d04c820a1441 | affected | git | Unavailable | Unavailable | None listed |
| 6.1.140 | affected | semver | 6.1.153 | Unavailable | None listed |
| 6.6.92 | affected | semver | 6.6.107 | Unavailable | None listed |
| 6.12.30 | affected | semver | 6.12.48 | Unavailable | None listed |
| 6.14.8 | affected | semver | 6.15 | 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) |
|---|---|---|---|---|---|
| 6.15 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 6.15 | Unavailable | None listed |
| 6.1.153 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.107 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.48 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.16.8 | unaffected | semver | Unavailable | 6.16.* | None listed |
| 6.17 | unaffected | original_commit_for_fix | Unavailable | * | None listed |