248 lines
13 KiB
JSON
248 lines
13 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-98379",
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"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"state": "PUBLISHED",
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"assignerShortName": "Linux",
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"dateReserved": "2026-09-25T10:25:14.345Z",
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"datePublished": "2026-10-09T07:34:19.425Z",
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"dateUpdated": "2026-10-19T09:18:30.044Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-10-19T09:18:30.044Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: ip6t_rpfilter: reject routes without inet6_dev\n\nip6_route_lookup() can return an error-free route whose rt6i_idev is\nNULL. Lowering an external nexthop device's MTU below IPV6_MIN_MTU tears\ndown its inet6_dev while fib6_ifdown() leaves routes using nexthop objects\nin the FIB. An unprivileged user can construct this state with rtnetlink\nin a private user and network namespace, then trigger a NULL dereference\nthrough an IPv6 rpfilter lookup:\n\n Oops: general protection fault, probably for non-canonical address\n 0xdffffc0000000000\n KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]\n RIP: rpfilter_mt (net/ipv6/netfilter/ip6t_rpfilter.c:75)\n Call Trace:\n ip6t_do_table (net/ipv6/netfilter/ip6_tables.c:316)\n nf_hook_slow (net/netfilter/core.c:619)\n ipv6_rcv (net/ipv6/ip6_input.c:351)\n __netif_receive_skb_one_core (net/core/dev.c:6216)\n process_backlog (net/core/dev.c:6680)\n __napi_poll (net/core/dev.c:7739)\n net_rx_action (net/core/dev.c:7959)\n handle_softirqs (kernel/softirq.c:622)\n do_softirq.part.0 (kernel/softirq.c:523)\n __local_bh_enable_ip (kernel/softirq.c:450)\n __dev_queue_xmit (net/core/dev.c:4913)\n packet_sendmsg (net/packet/af_packet.c:3139)\n __sys_sendto (net/socket.c:2252)\n __x64_sys_sendto (net/socket.c:2259)\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 Kernel panic - not syncing: Fatal exception in interrupt\n\nReject routes without an inet6_dev immediately after lookup. Such routes\nare not eligible for reverse-path filtering, and the check protects all\nlater rt6i_idev dereferences."
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}
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],
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"affected": [
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "unaffected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"net/ipv6/netfilter/ip6t_rpfilter.c"
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],
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"versions": [
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{
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"version": "e26f9a480fb6c1b614660e824d69a74e2ce990f3",
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"lessThan": "f4de78756b0fddbd125b2b1b77c74f2eccc8e977",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "e26f9a480fb6c1b614660e824d69a74e2ce990f3",
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"lessThan": "1681ab6dd1271f2f36047490793b78b1848bbcc9",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "e26f9a480fb6c1b614660e824d69a74e2ce990f3",
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"lessThan": "65487e9e99431ffcf05024a817f51ee4e3bd9b47",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "e26f9a480fb6c1b614660e824d69a74e2ce990f3",
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"lessThan": "f49da48bd679cfee646d6a40dd02b1933de577d1",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "e26f9a480fb6c1b614660e824d69a74e2ce990f3",
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"lessThan": "290c96e5d9471d1ded9ab1e8ffbb04f6ee7b0f40",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "e26f9a480fb6c1b614660e824d69a74e2ce990f3",
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"lessThan": "eafe081ea77d25b5c8e601680671b4ecb4520e7d",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "e26f9a480fb6c1b614660e824d69a74e2ce990f3",
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"lessThan": "3a7384bc2e66217c9a01a392281334f4423740a0",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "e26f9a480fb6c1b614660e824d69a74e2ce990f3",
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"lessThan": "1b9b5323725e458906c7620a3bc10398b51ad954",
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"status": "affected",
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"versionType": "git"
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}
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]
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},
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "affected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"net/ipv6/netfilter/ip6t_rpfilter.c"
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],
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"versions": [
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{
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"version": "3.3",
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"status": "affected"
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},
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{
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"version": "0",
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"lessThan": "3.3",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.10.271",
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"lessThanOrEqual": "5.10.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.15.222",
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"lessThanOrEqual": "5.15.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.1.189",
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"lessThanOrEqual": "6.1.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.6.158",
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"lessThanOrEqual": "6.6.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.12.112",
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"lessThanOrEqual": "6.12.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.18.55",
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"lessThanOrEqual": "6.18.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "7.2.9",
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"lessThanOrEqual": "7.2.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "7.3",
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"lessThanOrEqual": "*",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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}
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]
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}
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],
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"cpeApplicability": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "3.3",
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"versionEndExcluding": "5.10.271"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "3.3",
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"versionEndExcluding": "5.15.222"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "3.3",
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"versionEndExcluding": "6.1.189"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "3.3",
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"versionEndExcluding": "6.6.158"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "3.3",
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"versionEndExcluding": "6.12.112"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "3.3",
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"versionEndExcluding": "6.18.55"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "3.3",
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"versionEndExcluding": "7.2.9"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "3.3",
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"versionEndExcluding": "7.3"
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}
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]
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}
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]
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}
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],
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/f4de78756b0fddbd125b2b1b77c74f2eccc8e977"
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},
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{
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"url": "https://git.kernel.org/stable/c/1681ab6dd1271f2f36047490793b78b1848bbcc9"
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},
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{
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"url": "https://git.kernel.org/stable/c/65487e9e99431ffcf05024a817f51ee4e3bd9b47"
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},
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{
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"url": "https://git.kernel.org/stable/c/f49da48bd679cfee646d6a40dd02b1933de577d1"
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},
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{
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"url": "https://git.kernel.org/stable/c/290c96e5d9471d1ded9ab1e8ffbb04f6ee7b0f40"
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},
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{
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"url": "https://git.kernel.org/stable/c/eafe081ea77d25b5c8e601680671b4ecb4520e7d"
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},
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{
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"url": "https://git.kernel.org/stable/c/3a7384bc2e66217c9a01a392281334f4423740a0"
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},
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{
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"url": "https://git.kernel.org/stable/c/1b9b5323725e458906c7620a3bc10398b51ad954"
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}
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],
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"title": "netfilter: ip6t_rpfilter: reject routes without inet6_dev",
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"x_generator": {
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"engine": "bippy-1.2.0"
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}
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}
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}
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} |