CVE-2026-74683
CVE CVE-2026-74683EUVD EUVD-2026-64370Published 2026-08-22T15:32:50.000ZLast changed 2026-08-25T05:23:19.000Z
What the advisory describes
In the Linux kernel, the following vulnerability has been resolved: Input: evdev - sanitize event type index when fetching event masks The user-supplied event type index passed to EVIOCGMASK / EVIOCSMASK ioctls is used to index the static counts array in evdev_get_mask_cnt() and client evmasks array in evdev_get_mask(). While the event type is architecturally bounded by EV_CNT, speculative execution may mispredict bounds checks and perform out-of-bounds loads. Sanitize the event type index in evdev_get_mask_cnt() branchlessly using array_index_mask_nospec(). This clamps the index to 0 for safe array access and forces the returned count to 0 speculatively when the index is out of bounds. We do not need additional array_index_nospec() calls in evdev_get_mask() because evdev_get_mask_cnt() speculatively forces the count (and resulting xfer_size) to 0 for out-of-bounds types, preventing any speculative memory access to client evmasks array.
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; patch: 6.6.152; 4.4; 06a16293f71927f756dcf37558a79c0b05a91641 <3abd29c61d2ef37c4102cf755b18be53bb9dbea6; 06a16293f71927f756dcf37558a79c0b05a91641 <5db341189bb7ff041d570dbe36ecca7e32913927; 06a16293f71927f756dcf37558a79c0b05a91641 <810e1883d4815f29c30d900ad7333d03cc2515d1; 06a16293f71927f756dcf37558a79c0b05a91641 <f3fc329acad9a71b3c077237cbac20670d2358c8; patch: 5.10.265; 06a16293f71927f756dcf37558a79c0b05a91641 <c79b08d8fa230871a3634e34a66e591ac2d084ef; patch: 7.1.9; 06a16293f71927f756dcf37558a79c0b05a91641 <4034ef247a9dde3f56660b01f0c3280dac6b1274; 06a16293f71927f756dcf37558a79c0b05a91641 <433913b4a92214d76e9f0c03ad9128fec943d5f8; 06a16293f71927f756dcf37558a79c0b05a91641 <f27fa9b39f925d26e034a1f382cb45523138f4ae; patch: 7.2; patch: 5.15.216; patch: 6.12.104; patch: 6.18.45; patch: 6.1.183
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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