CVE-2026-89476
CVE CVE-2026-89476EUVD EUVD-2026-76382Published 2026-09-11T19:43:33.000ZLast changed 2026-09-14T12:00:12.000ZCVSS 7.5
What the advisory describes
In the Linux kernel, the following vulnerability has been resolved: sctp: fix stream->outcnt underflow on duplicate RECONF responses A cached RECONF chunk may contain more than one request parameter. A duplicate response can therefore find and process the same ADD_OUT request again while another parameter is still outstanding, rolling back outcnt twice and possibly underflowing it. Track outstanding request types as bits and clear each bit after its first response. Later responses for the same request are then ignored.
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 11ae76e67a179f25ae8f772d62a7ddf717b1cdf3 <8320cbd81bc21a1ca6ebdf70ad610ebc5ef1bd68; 4.12; 11ae76e67a179f25ae8f772d62a7ddf717b1cdf3 <041f7df5a929d3e7435dd8387e8ea17f2d412b7d; patch: 5.10.270; 11ae76e67a179f25ae8f772d62a7ddf717b1cdf3 <092acd3c55a4077b00489064615d8d2d898daf91; patch: 5.15.221; patch: 6.6.157; patch: 7.2.4; patch: 6.12.109; 11ae76e67a179f25ae8f772d62a7ddf717b1cdf3 <793519e343867ee9a3e84f6cac07f81f2aec7b5d; 11ae76e67a179f25ae8f772d62a7ddf717b1cdf3 <d02a5794c3deedcb8476d017fcee2b7aaedab2e1; patch: 6.1.188; patch: 6.18.50; 11ae76e67a179f25ae8f772d62a7ddf717b1cdf3 <3faf13aff243ca9f78d08b1a2956ef5a6fc77b6e; 11ae76e67a179f25ae8f772d62a7ddf717b1cdf3 <59f61c39cb99ee1737bd742a20094fe5653389bb; patch: 7.3-rc1; 11ae76e67a179f25ae8f772d62a7ddf717b1cdf3 <2d867663c563e8009257b9edf9c8ec75d9bbf19a; patch: 0
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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