CVE-2026-74617
CVE CVE-2026-74617EUVD EUVD-2026-64554Published 2026-08-22T15:32:02.000ZLast changed 2026-08-25T05:40:44.000ZCVSS 9.8
What the advisory describes
In the Linux kernel, the following vulnerability has been resolved: dibs: initialise dibs->lock in dibs_dev_alloc() dibs->lock is initialised by dibs_dev_add(), but a dibs device can already take interrupts before that call: ism_probe() runs ism_dev_init(), and hence request_irq(), before it calls dibs_dev_add(). No client can have registered a dmb at that point, so no dmb interrupt can occur, but a GID event interrupt can, and ism_handle_irq() takes dibs->lock unconditionally on entry, before it inspects anything else. Initialise the lock in dibs_dev_alloc() instead, so that it is valid as soon as a driver can publish the device to its interrupt handler.
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: 0; 6.18; cc21191b584c6f7836b0f10774f8278b7cbfba10 <fe79571f40434b257d68cbfb7b3ae93a794d8a11; cc21191b584c6f7836b0f10774f8278b7cbfba10 <c27e360545373b7aee9862a5beef3b9fb3df0c25; cc21191b584c6f7836b0f10774f8278b7cbfba10 <2926031acba100d0c18fcfaa7a2ed29609318848; patch: 6.18.45; patch: 7.1.9; patch: 7.2
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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