{"id":"CVE-2024-36902","revision":"67af8964bf43415ba3e75ebf5b224928","records":[{"revision":"67af8964bf43415ba3e75ebf5b224928","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2024-36902","aliases":[],"title":"ipv6: fib6_rules: avoid possible NULL dereference in fib6_rule_action()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nipv6: fib6_rules: avoid possible NULL dereference in fib6_rule_action()\n\nsyzbot is able to trigger the following crash [1],\ncaused by unsafe ip6_dst_idev() use.\n\nIndeed ip6_dst_idev() can return NULL, and must always be checked.\n\n[1]\n\nOops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN PTI\nKASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]\nCPU: 0 PID: 31648 Comm: syz-executor.0 Not tainted 6.9.0-rc4-next-20240417-syzkaller #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024\n RIP: 0010:__fib6_rule_action net/ipv6/fib6_rules.c:237 [inline]\n RIP: 0010:fib6_rule_action+0x241/0x7b0 net/ipv6/fib6_rules.c:267\nCode: 02 00 00 49 8d 9f d8 00 00 00 48 89 d8 48 c1 e8 03 42 80 3c 20 00 74 08 48 89 df e8 f9 32 bf f7 48 8b 1b 48 89 d8 48 c1 e8 03 <42> 80 3c 20 00 74 08 48 89 df e8 e0 32 bf f7 4c 8b 03 48 89 ef 4c\nRSP: 0018:ffffc9000fc1f2f0 EFLAGS: 00010246\nRAX: 0000000000000000 RBX: 0000000000000000 RCX: 1a772f98c8186700\nRDX: 0000000000000003 RSI: ffffffff8bcac4e0 RDI: ffffffff8c1f9760\nRBP: ffff8880673fb980 R08: ffffffff8fac15ef R09: 1ffffffff1f582bd\nR10: dffffc0000000000 R11: fffffbfff1f582be R12: dffffc0000000000\nR13: 0000000000000080 R14: ffff888076509000 R15: ffff88807a029a00\nFS: 00007f55e82ca6c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 0000001b31d23000 CR3: 0000000022b66000 CR4: 00000000003506f0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\nCall Trace:\n \n fib_rules_lookup+0x62c/0xdb0 net/core/fib_rules.c:317\n fib6_rule_lookup+0x1fd/0x790 net/ipv6/fib6_rules.c:108\n ip6_route_output_flags_noref net/ipv6/route.c:2637 [inline]\n ip6_route_output_flags+0x38e/0x610 net/ipv6/route.c:2649\n ip6_route_output include/net/ip6_route.h:93 [inline]\n ip6_dst_lookup_tail+0x189/0x11a0 net/ipv6/ip6_output.c:1120\n ip6_dst_lookup_flow+0xb9/0x180 net/ipv6/ip6_output.c:1250\n sctp_v6_get_dst+0x792/0x1e20 net/sctp/ipv6.c:326\n sctp_transport_route+0x12c/0x2e0 net/sctp/transport.c:455\n sctp_assoc_add_peer+0x614/0x15c0 net/sctp/associola.c:662\n sctp_connect_new_asoc+0x31d/0x6c0 net/sctp/socket.c:1099\n __sctp_connect+0x66d/0xe30 net/sctp/socket.c:1197\n sctp_connect net/sctp/socket.c:4819 [inline]\n sctp_inet_connect+0x149/0x1f0 net/sctp/socket.c:4834\n __sys_connect_file net/socket.c:2048 [inline]\n __sys_connect+0x2df/0x310 net/socket.c:2065\n __do_sys_connect net/socket.c:2075 [inline]\n __se_sys_connect net/socket.c:2072 [inline]\n __x64_sys_connect+0x7a/0x90 net/socket.c:2072\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83\n entry_SYSCALL_64_after_hwframe+0x77/0x7f","state":0,"publishedAt":"2024-05-30T15:29:04.298+00:00","modifiedAt":"2026-10-15T00:42:41.33+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n \"product\": \"Linux\",\n \"vendor\": \"Linux\",\n \"defaultStatus\": \"unaffected\",\n \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n \"programFiles\": [\n \"net/ipv6/fib6_rules.c\"\n ],\n \"versions\": [\n {\n \"version\": \"5e5f3f0f801321078c897a5de0b4b4304f234da0\",\n \"lessThan\": \"4a5a573387da6a6b23a4cc62147453ff1bc32afa\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"5e5f3f0f801321078c897a5de0b4b4304f234da0\",\n \"lessThan\": \"ddec23f206a944c73bcc2724358b85388837daff\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"5e5f3f0f801321078c897a5de0b4b4304f234da0\",\n \"lessThan\": \"674c951ab8a23f7aff9b4c3f2f865901bc76a290\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"5e5f3f0f801321078c897a5de0b4b4304f234da0\",\n \"lessThan\": \"35297fc68de36826087e976f86a5b1f94fd0bf95\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"5e5f3f0f801321078c897a5de0b4b4304f234da0\",\n \"lessThan\": \"7e3242c139c38e60844638e394c2877b16b396b0\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"5e5f3f0f801321078c897a5de0b4b4304f234da0\",\n \"lessThan\": \"8745a8d74ba17dafe72b6ab461fa6c007d879747\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"5e5f3f0f801321078c897a5de0b4b4304f234da0\",\n \"lessThan\": \"1876881c9a49613b5249fb400cbf53412d90cb09\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"5e5f3f0f801321078c897a5de0b4b4304f234da0\",\n \"lessThan\": \"d101291b2681e5ab938554e3e323f7a7ee33e3aa\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n }\n ]\n }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n \"product\": \"Linux\",\n \"vendor\": \"Linux\",\n \"defaultStatus\": \"affected\",\n \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n \"programFiles\": [\n \"net/ipv6/fib6_rules.c\"\n ],\n \"versions\": [\n {\n \"version\": \"2.6.26\",\n \"status\": \"affected\"\n },\n {\n \"version\": \"0\",\n \"lessThan\": \"2.6.26\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"4.19.314\",\n \"lessThanOrEqual\": \"4.19.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.4.276\",\n \"lessThanOrEqual\": \"5.4.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.10.217\",\n \"lessThanOrEqual\": \"5.10.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.15.159\",\n \"lessThanOrEqual\": \"5.15.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.1.91\",\n \"lessThanOrEqual\": \"6.1.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.6.31\",\n \"lessThanOrEqual\": \"6.6.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.8.10\",\n \"lessThanOrEqual\": \"6.8.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.9\",\n \"lessThanOrEqual\": \"*\",\n \"status\": \"unaffected\",\n \"versionType\": \"original_commit_for_fix\"\n }\n ]\n }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/4a5a573387da6a6b23a4cc62147453ff1bc32afa","https://git.kernel.org/stable/c/ddec23f206a944c73bcc2724358b85388837daff","https://git.kernel.org/stable/c/674c951ab8a23f7aff9b4c3f2f865901bc76a290","https://git.kernel.org/stable/c/35297fc68de36826087e976f86a5b1f94fd0bf95","https://git.kernel.org/stable/c/7e3242c139c38e60844638e394c2877b16b396b0","https://git.kernel.org/stable/c/8745a8d74ba17dafe72b6ab461fa6c007d879747","https://git.kernel.org/stable/c/1876881c9a49613b5249fb400cbf53412d90cb09","https://git.kernel.org/stable/c/d101291b2681e5ab938554e3e323f7a7ee33e3aa"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2024-36902","license":"CVE Program Terms of Use","key":"cve-program:CVE-2024-36902","identifiers":["CVE-2024-36902"]},"retained":false,"historicalAffected":[]}],"coverage":[]}