CVE-2026-74469

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Source
https://cve.org/CVERecord?id=CVE-2026-74469
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74469.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-74469
Downstream
Published
2026-08-15T12:27:06Z
Modified
2026-08-21T03:30:37Z
Severity
  • 8.8 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
sctp: prevent peer transport count overflow
Details

In the Linux kernel, the following vulnerability has been resolved:

sctp: prevent peer transport count overflow

sctp_assoc_add_peer() increments the association's 16-bit transport_count for every new unique peer. Adding the 65,536th transport wraps the count to zero.

SCTP sock_diag uses transport_count to reserve the INET_DIAG_PEERS payload, then copies one sockaddr_storage for every entry in transport_addr_list. After the wrap, a diagnostic dump reserves an empty payload and writes 8 MiB of peer addresses past the skb tail.

Reject a new unique peer when transport_count has reached U16_MAX. Perform the check after the existing-peer lookup so a duplicate address continues to return its existing transport at the limit.

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74469.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
8f840e47f190cbe61a96945c13e9551048d42cef
Fixed
b453e00da1211e997b82743d28af7714c59c05c8
Fixed
dfea32dd76f390e3155177b0038cc47b01386198
Fixed
80f48523a0fe42db2e7375dff4e38a25c117090a
Fixed
546221b86ceeba0d8fec92d46a0604bb7b62be07
Fixed
09e722030e8148ba4ed1e42c6b2ea57bda9f9895
Fixed
4ba5bf7ed50f235ea4581de8e7a0002f4ed287b0
Fixed
6201cd1d70f1670c5b31ac506e7ab2fa7b8e7f75
Fixed
bd0e9289e2642f6a5c54faad304ce0f41e926d22

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74469.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
4.7.0
Fixed
5.10.265
Type
ECOSYSTEM
Events
Introduced
5.11.0
Fixed
5.15.216
Type
ECOSYSTEM
Events
Introduced
5.16.0
Fixed
6.1.183
Type
ECOSYSTEM
Events
Introduced
6.2.0
Fixed
6.6.151
Type
ECOSYSTEM
Events
Introduced
6.7.0
Fixed
6.12.103
Type
ECOSYSTEM
Events
Introduced
6.13.0
Fixed
6.18.44
Type
ECOSYSTEM
Events
Introduced
6.19.0
Fixed
7.1.8

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74469.json"