{ "schemaVersion": 1, "attribution": [ { "source": "CISA Known Exploited Vulnerabilities", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog", "licence": "US government work" }, { "source": "GitHub Advisory Database", "url": "https://github.com/advisories", "licence": "CC BY 4.0" }, { "source": "Have I Been Pwned", "url": "https://haveibeenpwned.com/", "licence": "CC BY 4.0" }, { "source": "CVE Program (CVE records)", "url": "https://www.cve.org/Legal/TermsOfUse", "licence": "CVE Terms of Use", "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.", "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy." }, { "source": "FIRST EPSS", "url": "https://www.first.org/epss/", "licence": "free to use; FIRST requests attribution" } ], "record": { "id": "CVE-2025-38718", "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2025-38718", "idYear": 2025, "status": "PUBLISHED", "publishedAt": "2025-09-04T15:33:12.448Z", "updatedAt": "2026-08-05T12:04:15.979Z", "importedAt": "2026-10-24T01:57:34.152Z", "snapshot": { "id": "cve_2026-10-24_midnight_baseline", "at": "2026-10-24T00:00:00.000Z", "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z" }, "facts": { "title": "sctp: linearize cloned gso packets in sctp_rcv", "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nsctp: linearize cloned gso packets in sctp_rcv\n\nA cloned head skb still shares these frag skbs in fraglist with the\noriginal head skb. It's not safe to access these frag skbs.\n\nsyzbot reported two use-of-uninitialized-memory bugs caused by this:\n\n BUG: KMSAN: uninit-value in sctp_inq_pop+0x15b7/0x1920 net/sctp/inqueue.c:211\n sctp_inq_pop+0x15b7/0x1920 net/sctp/inqueue.c:211\n sctp_assoc_bh_rcv+0x1a7/0xc50 net/sctp/associola.c:998\n sctp_inq_push+0x2ef/0x380 net/sctp/inqueue.c:88\n sctp_backlog_rcv+0x397/0xdb0 net/sctp/input.c:331\n sk_backlog_rcv+0x13b/0x420 include/net/sock.h:1122\n __release_sock+0x1da/0x330 net/core/sock.c:3106\n release_sock+0x6b/0x250 net/core/sock.c:3660\n sctp_wait_for_connect+0x487/0x820 net/sctp/socket.c:9360\n sctp_sendmsg_to_asoc+0x1ec1/0x1f00 net/sctp/socket.c:1885\n sctp_sendmsg+0x32b9/0x4a80 net/sctp/socket.c:2031\n inet_sendmsg+0x25a/0x280 net/ipv4/af_inet.c:851\n sock_sendmsg_nosec net/socket.c:718 [inline]\n\nand\n\n BUG: KMSAN: uninit-value in sctp_assoc_bh_rcv+0x34e/0xbc0 net/sctp/associola.c:987\n sctp_assoc_bh_rcv+0x34e/0xbc0 net/sctp/associola.c:987\n sctp_inq_push+0x2a3/0x350 net/sctp/inqueue.c:88\n sctp_backlog_rcv+0x3c7/0xda0 net/sctp/input.c:331\n sk_backlog_rcv+0x142/0x420 include/net/sock.h:1148\n __release_sock+0x1d3/0x330 net/core/sock.c:3213\n release_sock+0x6b/0x270 net/core/sock.c:3767\n sctp_wait_for_connect+0x458/0x820 net/sctp/socket.c:9367\n sctp_sendmsg_to_asoc+0x223a/0x2260 net/sctp/socket.c:1886\n sctp_sendmsg+0x3910/0x49f0 net/sctp/socket.c:2032\n inet_sendmsg+0x269/0x2a0 net/ipv4/af_inet.c:851\n sock_sendmsg_nosec net/socket.c:712 [inline]\n\nThis patch fixes it by linearizing cloned gso packets in sctp_rcv().", "affected": [ { "vendor": "Linux", "product": "Linux", "defaultStatus": "unaffected", "versions": [ { "version": "90017accff61ae89283ad9a51f9ac46ca01633fb", "status": "affected", "versionType": "git", "lessThan": "d0194e391bb493aa6cec56d177b14df6b29188d5" }, { "version": "90017accff61ae89283ad9a51f9ac46ca01633fb", "status": "affected", "versionType": "git", "lessThan": "03d0cc6889e02420125510b5444b570f4bbf53d5" }, { "version": "90017accff61ae89283ad9a51f9ac46ca01633fb", "status": "affected", "versionType": "git", "lessThan": "cd0e92bb2b7542fb96397ffac639b4f5b099d0cb" }, { "version": "90017accff61ae89283ad9a51f9ac46ca01633fb", "status": "affected", "versionType": "git", "lessThan": "4506bcaabe004d07be8ff09116a3024fbd6aa965" }, { "version": "90017accff61ae89283ad9a51f9ac46ca01633fb", "status": "affected", "versionType": "git", "lessThan": "ea094f38d387d1b0ded5dee4a3e5720aa4ce0139" }, { "version": "90017accff61ae89283ad9a51f9ac46ca01633fb", "status": "affected", "versionType": "git", "lessThan": "7d757f17bc2ef2727994ffa6d5d6e4bc4789a770" }, { "version": "90017accff61ae89283ad9a51f9ac46ca01633fb", "status": "affected", "versionType": "git", "lessThan": "fc66772607101bd2030a4332b3bd0ea3b3605250" }, { "version": "90017accff61ae89283ad9a51f9ac46ca01633fb", "status": "affected", "versionType": "git", "lessThan": "1bd5214ea681584c5886fea3ba03e49f93a43c0e" }, { "version": "90017accff61ae89283ad9a51f9ac46ca01633fb", "status": "affected", "versionType": "git", "lessThan": "fd60d8a086191fe33c2d719732d2482052fa6805" } ] }, { "vendor": "Linux", "product": "Linux", "defaultStatus": "affected", "versions": [ { "version": "4.8", "status": "affected" }, { "version": "0", "status": "unaffected", "versionType": "semver", "lessThan": "4.8" }, { "version": "5.4.297", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.4.*" }, { "version": "5.10.241", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.10.*" }, { "version": "5.15.190", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.15.*" }, { "version": "6.1.162", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.1.*" }, { "version": "6.6.103", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.6.*" }, { "version": "6.12.43", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.12.*" }, { "version": "6.15.11", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.15.*" }, { "version": "6.16.2", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.16.*" }, { "version": "6.17", "status": "unaffected", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*" } ] } ] } } }