CVE-2026-74661
CVE CVE-2026-74661EUVD EUVD-2026-64348Published 2026-08-22T15:32:34.000ZLast changed 2026-08-25T05:41:15.000ZCVSS 7.8
What the advisory describes
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.
Source: EUVD (ENISA), in the words of the advisory.
Products the advisory names
These come from the advisory itself, not from any check we performed.
- Linux — Linux patch: 6.6.152; patch: 0; patch: 7.2; 3accf4762734a69ebd03cba989249c78ac7dfc7e <5f26a690e8efa54315e4922368daf54e0b8f5515; 3accf4762734a69ebd03cba989249c78ac7dfc7e <9d067e581597c462c51fee8a30b51bc48a68c4e1; 3accf4762734a69ebd03cba989249c78ac7dfc7e <e6cd416a899edc912b428c4ba399bd73f516cb31; patch: 6.12.104; 6.3; 3accf4762734a69ebd03cba989249c78ac7dfc7e <fe820dcc1d8ff77783a9d2bcc93b98c99ac6d517; 3accf4762734a69ebd03cba989249c78ac7dfc7e <e5fb0e03bc7f45508c182a427357bf6b389a9033; patch: 6.18.45; patch: 7.1.9
The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.
Carried in the product catalogue
An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.
- Linux — Linux
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