CVE-2026-68354
CVE CVE-2026-68354EUVD EUVD-2026-55455Published 2026-08-10T12:03:31.000Z
What the advisory describes
In the Linux kernel, the following vulnerability has been resolved: firewire: net: Fix fragmented datagram reassembly fwnet_frag_new() keeps a sorted list of received fragments for a partial datagram. When a new fragment is adjacent to an existing fragment, the code checks whether the new fragment also closes the gap to the next or previous list entry. Those neighbor lookups currently assume that the current fragment always has a real next or previous fragment. At a list edge, the next or previous entry is the list head, not a struct fwnet_fragment_info. The gap checks also compare against the old edge of the current fragment instead of the edge after adding the new fragment. As a result, a fragment that bridges two existing ranges may leave two adjacent ranges unmerged, so fwnet_pd_is_complete() can miss a complete datagram. Check for the list head before looking up the neighboring fragment, and compare the neighbor against the new fragment's far edge when deciding whether to merge all three ranges. This issue was found by a static analysis checker and confirmed by manual source review.
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 c76acec6d55107b652a37c90b36c00bc8b04dabb <0177e578d7a885037b0fb82286c12e9d0360cc10; c76acec6d55107b652a37c90b36c00bc8b04dabb <2a5aa4e9b89227d1a1690fb8d5b81e5f3b261999; 2.6.31; patch: 7.1.6; patch: 6.6.148; c76acec6d55107b652a37c90b36c00bc8b04dabb <b7d633c7c92321be98724b1d365e8ce507f2f349; c76acec6d55107b652a37c90b36c00bc8b04dabb <22e05b8ddbcf7d22c7f1598786e86635547e554d; patch: 7.2-rc5; patch: 0; c76acec6d55107b652a37c90b36c00bc8b04dabb <d52a13adbb8ccbab99cd3bad36804e87d8b5c052; patch: 6.18.42; patch: 6.12.101
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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