{"api_version":"1","generated_at":"2026-08-05T23:06:17+00:00","cve":"CVE-2026-64569","urls":{"html":"https://cve.report/CVE-2026-64569","api":"https://cve.report/api/cve/CVE-2026-64569.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-64569","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-64569"},"summary":{"title":"mpls: fix NULL deref in mpls_valid_fib_dump_req() on CONFIG_INET=n","description":"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.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-08-05 08:16:36","updated_at":"2026-08-05 08:16:36"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/56d96fededd61192cd7cc8d2b0f36adfd59036c3","name":"https://git.kernel.org/stable/c/56d96fededd61192cd7cc8d2b0f36adfd59036c3","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/06db79411a280707c7e4bf4b221ff4e664b51502","name":"https://git.kernel.org/stable/c/06db79411a280707c7e4bf4b221ff4e664b51502","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/ad6284ced6a15e4abd57ca4d0793b7bd15ca52ce","name":"https://git.kernel.org/stable/c/ad6284ced6a15e4abd57ca4d0793b7bd15ca52ce","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/d6eee7cd078aaf9dd75efc801f6c9b608a37cd71","name":"https://git.kernel.org/stable/c/d6eee7cd078aaf9dd75efc801f6c9b608a37cd71","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/5f6e7b32bd1fbde10fd31a4143260735ea535b8a","name":"https://git.kernel.org/stable/c/5f6e7b32bd1fbde10fd31a4143260735ea535b8a","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-64569","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64569","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 196cfebf897266c3450519e916bab9daff74e52c d6eee7cd078aaf9dd75efc801f6c9b608a37cd71 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 196cfebf897266c3450519e916bab9daff74e52c ad6284ced6a15e4abd57ca4d0793b7bd15ca52ce git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 196cfebf897266c3450519e916bab9daff74e52c 5f6e7b32bd1fbde10fd31a4143260735ea535b8a git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 196cfebf897266c3450519e916bab9daff74e52c 06db79411a280707c7e4bf4b221ff4e664b51502 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 196cfebf897266c3450519e916bab9daff74e52c 56d96fededd61192cd7cc8d2b0f36adfd59036c3 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 4.20","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 4.20 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.148 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.101 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.42 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1.6 7.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2-rc4 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/mpls/af_mpls.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"d6eee7cd078aaf9dd75efc801f6c9b608a37cd71","status":"affected","version":"196cfebf897266c3450519e916bab9daff74e52c","versionType":"git"},{"lessThan":"ad6284ced6a15e4abd57ca4d0793b7bd15ca52ce","status":"affected","version":"196cfebf897266c3450519e916bab9daff74e52c","versionType":"git"},{"lessThan":"5f6e7b32bd1fbde10fd31a4143260735ea535b8a","status":"affected","version":"196cfebf897266c3450519e916bab9daff74e52c","versionType":"git"},{"lessThan":"06db79411a280707c7e4bf4b221ff4e664b51502","status":"affected","version":"196cfebf897266c3450519e916bab9daff74e52c","versionType":"git"},{"lessThan":"56d96fededd61192cd7cc8d2b0f36adfd59036c3","status":"affected","version":"196cfebf897266c3450519e916bab9daff74e52c","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["net/mpls/af_mpls.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.20"},{"lessThan":"4.20","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.148","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.101","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.42","versionType":"semver"},{"lessThanOrEqual":"7.1.*","status":"unaffected","version":"7.1.6","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.2-rc4","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.148","versionStartIncluding":"4.20","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.101","versionStartIncluding":"4.20","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.42","versionStartIncluding":"4.20","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1.6","versionStartIncluding":"4.20","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2-rc4","versionStartIncluding":"4.20","vulnerable":true}],"negate":false,"operator":"OR"}]}],"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."}],"providerMetadata":{"dateUpdated":"2026-08-05T08:08:07.233Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"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"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-64569","datePublished":"2026-08-05T08:08:07.233Z","dateReserved":"2026-07-19T15:36:31.797Z","dateUpdated":"2026-08-05T08:08:07.233Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-08-05 08:16:36","lastModifiedDate":"2026-08-05 08:16:36","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"64569","Ordinal":"1","Title":"mpls: fix NULL deref in mpls_valid_fib_dump_req() on CONFIG_INET","CVE":"CVE-2026-64569","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"64569","Ordinal":"1","NoteData":"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.","Type":"Description","Title":"mpls: fix NULL deref in mpls_valid_fib_dump_req() on CONFIG_INET"}]}}}