Answer in brief
CVE-2026-74469 records a High severity (CVSS 8.8) vulnerability in sctp: prevent peer transport count overflow. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 8.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=8f840e47f190cbe61a96945c13e9551048d42cef <546221b86ceeba0d8fec92d46a0604bb7b62be07 || >=8f840e47f190cbe61a96945c13e9551048d42cef <09e722030e8148ba4ed1e42c6b2ea57bda9f9895 || >=8f840e47f190cbe61a96945c13e9551048d42cef <4ba5bf7ed50f235ea4581de8e7a0002f4ed287b0 || >=8f840e47f190cbe61a96945c13e9551048d42cef <6201cd1d70f1670c5b31ac506e7ab2fa7b8e7f75 || >=8f840e47f190cbe61a96945c13e9551048d42cef <bd0e9289e2642f6a5c54faad304ce0f41e926d22 | 546221b86ceeba0d8fec92d46a0604bb7b62be07, 09e722030e8148ba4ed1e42c6b2ea57bda9f9895, 4ba5bf7ed50f235ea4581de8e7a0002f4ed287b0, 6201cd1d70f1670c5b31ac506e7ab2fa7b8e7f75, bd0e9289e2642f6a5c54faad304ce0f41e926d22 |
| Linux/Linuxgeneric | 4.7 | Not reported |
| Linux/Linuxgeneric | >=8f840e47f190cbe61a96945c13e9551048d42cef <b453e00da1211e997b82743d28af7714c59c05c8 || >=8f840e47f190cbe61a96945c13e9551048d42cef <dfea32dd76f390e3155177b0038cc47b01386198 || >=8f840e47f190cbe61a96945c13e9551048d42cef <80f48523a0fe42db2e7375dff4e38a25c117090a || >=8f840e47f190cbe61a96945c13e9551048d42cef <546221b86ceeba0d8fec92d46a0604bb7b62be07 || >=8f840e47f190cbe61a96945c13e9551048d42cef <09e722030e8148ba4ed1e42c6b2ea57bda9f9895 || >=8f840e47f190cbe61a96945c13e9551048d42cef <4ba5bf7ed50f235ea4581de8e7a0002f4ed287b0 || >=8f840e47f190cbe61a96945c13e9551048d42cef <6201cd1d70f1670c5b31ac506e7ab2fa7b8e7f75 || >=8f840e47f190cbe61a96945c13e9551048d42cef <bd0e9289e2642f6a5c54faad304ce0f41e926d22 | b453e00da1211e997b82743d28af7714c59c05c8, dfea32dd76f390e3155177b0038cc47b01386198, 80f48523a0fe42db2e7375dff4e38a25c117090a, 546221b86ceeba0d8fec92d46a0604bb7b62be07, 09e722030e8148ba4ed1e42c6b2ea57bda9f9895, 4ba5bf7ed50f235ea4581de8e7a0002f4ed287b0, 6201cd1d70f1670c5b31ac506e7ab2fa7b8e7f75, bd0e9289e2642f6a5c54faad304ce0f41e926d22 |
Published upstream
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 19, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 15, 2026
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.
Quoted source text, attributed separately from HOL analysis.