{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-64569", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-07-19T15:36:31.797Z", "datePublished": "2026-08-05T08:08:07.233Z", "dateUpdated": "2026-08-19T16:28:44.216Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-19T16:28:44.216Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmpls: fix NULL deref in mpls_valid_fib_dump_req() on CONFIG_INET=n\n\nOn CONFIG_INET=n builds, mpls_valid_fib_dump_req() walks the parsed\nattribute table itself instead of calling ip_valid_fib_dump_req(). The\nRTA_OIF arm passes tb[RTA_OIF] to nla_get_u32() without checking it is\npresent, so an RTM_GETROUTE dump for AF_MPLS with strict checking and no\nRTA_OIF hits a NULL dereference.\n\nRTM_GETROUTE is RTNL_KIND_GET, which rtnetlink_rcv_msg() permits without\nCAP_NET_ADMIN, so an unprivileged user can trigger it.\n\n Oops: general protection fault, probably for non-canonical address\n 0xdffffc0000000000: 0000 [#1] SMP KASAN NOPTI\n KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]\n RIP: 0010:mpls_valid_fib_dump_req (net/mpls/af_mpls.c:2189)\n Call Trace:\n mpls_dump_routes (net/mpls/af_mpls.c:2236)\n netlink_dump (net/netlink/af_netlink.c:2331)\n __netlink_dump_start (net/netlink/af_netlink.c:2446)\n rtnetlink_rcv_msg (net/core/rtnetlink.c:7033)\n netlink_rcv_skb (net/netlink/af_netlink.c:2556)\n netlink_unicast (net/netlink/af_netlink.c:1345)\n netlink_sendmsg (net/netlink/af_netlink.c:1900)\n __sock_sendmsg (net/socket.c:790)\n ____sys_sendmsg (net/socket.c:2684)\n ___sys_sendmsg (net/socket.c:2738)\n __sys_sendmsg (net/socket.c:2770)\n do_syscall_64 (arch/x86/entry/syscall_64.c:94)\n entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)\n\nSkip unset attributes, as ip_valid_fib_dump_req() does." } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "net/mpls/af_mpls.c" ], "versions": [ { "version": "196cfebf897266c3450519e916bab9daff74e52c", "lessThan": "bfc1cb5d6a8308e493e307f1c823d2107abc0a47", "status": "affected", "versionType": "git" }, { "version": "196cfebf897266c3450519e916bab9daff74e52c", "lessThan": "03b5a2c29afc8e634924c75d6ee94140e70de88d", "status": "affected", "versionType": "git" }, { "version": "196cfebf897266c3450519e916bab9daff74e52c", "lessThan": "e796ce9ef4356dc7cbbaa8373843f77852f2814d", "status": "affected", "versionType": "git" }, { "version": "196cfebf897266c3450519e916bab9daff74e52c", "lessThan": "d6eee7cd078aaf9dd75efc801f6c9b608a37cd71", "status": "affected", "versionType": "git" }, { "version": "196cfebf897266c3450519e916bab9daff74e52c", "lessThan": "ad6284ced6a15e4abd57ca4d0793b7bd15ca52ce", "status": "affected", "versionType": "git" }, { "version": "196cfebf897266c3450519e916bab9daff74e52c", "lessThan": "5f6e7b32bd1fbde10fd31a4143260735ea535b8a", "status": "affected", "versionType": "git" }, { "version": "196cfebf897266c3450519e916bab9daff74e52c", "lessThan": "06db79411a280707c7e4bf4b221ff4e664b51502", "status": "affected", "versionType": "git" }, { "version": "196cfebf897266c3450519e916bab9daff74e52c", "lessThan": "56d96fededd61192cd7cc8d2b0f36adfd59036c3", "status": "affected", "versionType": "git" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "net/mpls/af_mpls.c" ], "versions": [ { "version": "4.20", "status": "affected" }, { "version": "0", "lessThan": "4.20", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.265", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.216", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.183", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.148", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.12.101", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.18.42", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver" }, { "version": "7.1.6", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "7.2", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ] } ], "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.20", "versionEndExcluding": "5.10.265" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.20", "versionEndExcluding": "5.15.216" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.20", "versionEndExcluding": "6.1.183" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.20", "versionEndExcluding": "6.6.148" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.20", "versionEndExcluding": "6.12.101" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.20", "versionEndExcluding": "6.18.42" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.20", "versionEndExcluding": "7.1.6" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.20", "versionEndExcluding": "7.2" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/bfc1cb5d6a8308e493e307f1c823d2107abc0a47" }, { "url": "https://git.kernel.org/stable/c/03b5a2c29afc8e634924c75d6ee94140e70de88d" }, { "url": "https://git.kernel.org/stable/c/e796ce9ef4356dc7cbbaa8373843f77852f2814d" }, { "url": "https://git.kernel.org/stable/c/d6eee7cd078aaf9dd75efc801f6c9b608a37cd71" }, { "url": "https://git.kernel.org/stable/c/ad6284ced6a15e4abd57ca4d0793b7bd15ca52ce" }, { "url": "https://git.kernel.org/stable/c/5f6e7b32bd1fbde10fd31a4143260735ea535b8a" }, { "url": "https://git.kernel.org/stable/c/06db79411a280707c7e4bf4b221ff4e664b51502" }, { "url": "https://git.kernel.org/stable/c/56d96fededd61192cd7cc8d2b0f36adfd59036c3" } ], "title": "mpls: fix NULL deref in mpls_valid_fib_dump_req() on CONFIG_INET=n", "x_generator": { "engine": "bippy-1.2.0" } } } }