CVE-2026-74566
CVE CVE-2026-74566EUVD EUVD-2026-59631Published 2026-08-15T12:28:07.000ZLast changed 2026-08-19T16:39:06.000Z
What the advisory describes
In the Linux kernel, the following vulnerability has been resolved: keys: make keyring key-chunk byte order agree with keyring_diff_objects() keyring_get_key_chunk() loads description bytes into the index chunk low address first, while keyring_diff_objects() numbers the first differing bit from the low end and folds the absolute byte index into the level without removing the inline-prefix offset the level already carries. The two disagree on byte order and bit position, so the array can be told two keys first differ at a bit that does not differ in the chunk the walker uses, letting crafted descriptions collide into one node. Load the chunk in the order keyring_diff_objects() assumes and drop the inline-prefix length when folding the byte index into the level. This only changes the in-memory ordering used to place keys within a keyring; add, search and read of non-colliding keys are unaffected.
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; 5.3; patch: 7.2; f771fde82051976a6fc0fd570f8b86de4a92124b <414bcf37d81ce9b3823aabc06b04c97fdcbe489b; f771fde82051976a6fc0fd570f8b86de4a92124b <abe43c661efb753d5ee35ad8ace4bbb16fa9afd0; f771fde82051976a6fc0fd570f8b86de4a92124b <7269df3e7fcfa308e6a456305162f7788747bdbd; patch: 6.18.44; f771fde82051976a6fc0fd570f8b86de4a92124b <7e5397a3fed0dee7779bd084bec3c0584db3c930; f771fde82051976a6fc0fd570f8b86de4a92124b <3d9f16c0b643ceac305526b2e2fe25c2c6166926; patch: 7.1.8; patch: 6.6.151; patch: 5.10.265; patch: 5.15.216; patch: 6.12.103; f771fde82051976a6fc0fd570f8b86de4a92124b <bd0f976ef89dce6db458bf75bc2cf51127becc41; f771fde82051976a6fc0fd570f8b86de4a92124b <f81920917074e3c4ad4fba06fe8c56738d010606; patch: 6.1.183; f771fde82051976a6fc0fd570f8b86de4a92124b <58565eef0f8d861aae92abfb7658458d661cee17
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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