CVE-2026-74661
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)
mac802154: fix netdev use-after-free in beacon worker
In the Linux kernel, the following vulnerability has been resolved: mac802154: fix netdev use-after-free in beacon worker mac802154_beacon_worker() reads local->beacon_req under RCU and derives the sub-interface from the request, but then drops the RCU read lock and continues to use both sdata and the embedded wpan_dev. mac802154_stop_beacons_locked() cancels only pending beacon work, clears local->beacon_req and frees the request. A beacon worker that is already running can therefore continue after interface teardown and dereference the freed netdev private area. The scan worker already pins the netdev before leaving RCU. Apply the same lifetime rule to the beacon worker: take a netdev reference while the request is still protected by RCU, and release it on all paths that continue after the reference is acquired.
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) |
|---|---|---|---|---|---|
| 3accf4762734a69ebd03cba989249c78ac7dfc7e | affected | git | fe820dcc1d8ff77783a9d2bcc93b98c99ac6d517 | Unavailable | None listed |
| 3accf4762734a69ebd03cba989249c78ac7dfc7e | affected | git | e5fb0e03bc7f45508c182a427357bf6b389a9033 | Unavailable | None listed |
| 3accf4762734a69ebd03cba989249c78ac7dfc7e | affected | git | e6cd416a899edc912b428c4ba399bd73f516cb31 | Unavailable | None listed |
| 3accf4762734a69ebd03cba989249c78ac7dfc7e | affected | git | 9d067e581597c462c51fee8a30b51bc48a68c4e1 | Unavailable | None listed |
| 3accf4762734a69ebd03cba989249c78ac7dfc7e | affected | git | 5f26a690e8efa54315e4922368daf54e0b8f5515 | 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) |
|---|---|---|---|---|---|
| 6.3 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 6.3 | Unavailable | None listed |
| 6.6.152 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.104 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.45 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.1.9 | unaffected | semver | Unavailable | 7.1.* | None listed |
| 7.2 | unaffected | original_commit_for_fix | Unavailable | * | None listed |