{"id":"CVE-2024-40960","revision":"694c0fd5130647debc45d16b1a0e45b7","records":[{"revision":"694c0fd5130647debc45d16b1a0e45b7","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2024-40960","aliases":[],"title":"ipv6: prevent possible NULL dereference in rt6_probe()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nipv6: prevent possible NULL dereference in rt6_probe()\n\nsyzbot caught a NULL dereference in rt6_probe() [1]\n\nBail out if __in6_dev_get() returns NULL.\n\n[1]\nOops: general protection fault, probably for non-canonical address 0xdffffc00000000cb: 0000 [#1] PREEMPT SMP KASAN PTI\nKASAN: null-ptr-deref in range [0x0000000000000658-0x000000000000065f]\nCPU: 1 PID: 22444 Comm: syz-executor.0 Not tainted 6.10.0-rc2-syzkaller-00383-gb8481381d4e2 #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024\n RIP: 0010:rt6_probe net/ipv6/route.c:656 [inline]\n RIP: 0010:find_match+0x8c4/0xf50 net/ipv6/route.c:758\nCode: 14 fd f7 48 8b 85 38 ff ff ff 48 c7 45 b0 00 00 00 00 48 8d b8 5c 06 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 19\nRSP: 0018:ffffc900034af070 EFLAGS: 00010203\nRAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc90004521000\nRDX: 00000000000000cb RSI: ffffffff8990d0cd RDI: 000000000000065c\nRBP: ffffc900034af150 R08: 0000000000000005 R09: 0000000000000000\nR10: 0000000000000001 R11: 0000000000000002 R12: 000000000000000a\nR13: 1ffff92000695e18 R14: ffff8880244a1d20 R15: 0000000000000000\nFS: 00007f4844a5a6c0(0000) GS:ffff8880b9300000(0000) knlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 0000001b31b27000 CR3: 000000002d42c000 CR4: 00000000003506f0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\nCall Trace:\n \n rt6_nh_find_match+0xfa/0x1a0 net/ipv6/route.c:784\n nexthop_for_each_fib6_nh+0x26d/0x4a0 net/ipv4/nexthop.c:1496\n __find_rr_leaf+0x6e7/0xe00 net/ipv6/route.c:825\n find_rr_leaf net/ipv6/route.c:853 [inline]\n rt6_select net/ipv6/route.c:897 [inline]\n fib6_table_lookup+0x57e/0xa30 net/ipv6/route.c:2195\n ip6_pol_route+0x1cd/0x1150 net/ipv6/route.c:2231\n pol_lookup_func include/net/ip6_fib.h:616 [inline]\n fib6_rule_lookup+0x386/0x720 net/ipv6/fib6_rules.c:121\n ip6_route_output_flags_noref net/ipv6/route.c:2639 [inline]\n ip6_route_output_flags+0x1d0/0x640 net/ipv6/route.c:2651\n ip6_dst_lookup_tail.constprop.0+0x961/0x1760 net/ipv6/ip6_output.c:1147\n ip6_dst_lookup_flow+0x99/0x1d0 net/ipv6/ip6_output.c:1250\n rawv6_sendmsg+0xdab/0x4340 net/ipv6/raw.c:898\n inet_sendmsg+0x119/0x140 net/ipv4/af_inet.c:853\n sock_sendmsg_nosec net/socket.c:730 [inline]\n __sock_sendmsg net/socket.c:745 [inline]\n sock_write_iter+0x4b8/0x5c0 net/socket.c:1160\n new_sync_write fs/read_write.c:497 [inline]\n vfs_write+0x6b6/0x1140 fs/read_write.c:590\n ksys_write+0x1f8/0x260 fs/read_write.c:643\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83\n entry_SYSCALL_64_after_hwframe+0x77/0x7f","state":0,"publishedAt":"2024-07-12T12:32:01.939+00:00","modifiedAt":"2026-10-15T00:46:04.558+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/route.c\"\n ],\n \"versions\": [\n {\n \"version\": \"52e1635631b342803aecaf81a362c1464e3da2e5\",\n \"lessThan\": \"f0cda984e4e634b221dbf9642b8ecc5b4806b41e\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"52e1635631b342803aecaf81a362c1464e3da2e5\",\n \"lessThan\": \"d66fc4826127c82f99c4033380f8e93833d331c7\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"52e1635631b342803aecaf81a362c1464e3da2e5\",\n \"lessThan\": \"1ed9849fdf9a1a617129346b11d2094ca26828dc\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"52e1635631b342803aecaf81a362c1464e3da2e5\",\n \"lessThan\": \"569c9d9ea6648d099187527b93982f406ddcebc0\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"52e1635631b342803aecaf81a362c1464e3da2e5\",\n \"lessThan\": \"51ee2f7c30790799d0ec30c0ce0c743e58f046f2\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"52e1635631b342803aecaf81a362c1464e3da2e5\",\n \"lessThan\": \"73e7c8ca6ad76f29b2c99c20845a6f3b203ff0c6\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"52e1635631b342803aecaf81a362c1464e3da2e5\",\n \"lessThan\": \"6eed6d3cd19ff3cfa83aeceed86da14abaf7417b\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"52e1635631b342803aecaf81a362c1464e3da2e5\",\n \"lessThan\": \"b86762dbe19a62e785c189f313cda5b989931f37\",\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/route.c\"\n ],\n \"versions\": [\n {\n \"version\": \"2.6.17\",\n \"status\": \"affected\"\n },\n {\n \"version\": \"0\",\n \"lessThan\": \"2.6.17\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"4.19.317\",\n \"lessThanOrEqual\": \"4.19.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.4.279\",\n \"lessThanOrEqual\": \"5.4.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.10.221\",\n \"lessThanOrEqual\": \"5.10.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.15.162\",\n \"lessThanOrEqual\": \"5.15.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.1.96\",\n \"lessThanOrEqual\": \"6.1.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.6.36\",\n \"lessThanOrEqual\": \"6.6.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.9.7\",\n \"lessThanOrEqual\": \"6.9.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.10\",\n \"lessThanOrEqual\": \"*\",\n \"status\": \"unaffected\",\n \"versionType\": \"original_commit_for_fix\"\n }\n ]\n }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/f0cda984e4e634b221dbf9642b8ecc5b4806b41e","https://git.kernel.org/stable/c/d66fc4826127c82f99c4033380f8e93833d331c7","https://git.kernel.org/stable/c/1ed9849fdf9a1a617129346b11d2094ca26828dc","https://git.kernel.org/stable/c/569c9d9ea6648d099187527b93982f406ddcebc0","https://git.kernel.org/stable/c/51ee2f7c30790799d0ec30c0ce0c743e58f046f2","https://git.kernel.org/stable/c/73e7c8ca6ad76f29b2c99c20845a6f3b203ff0c6","https://git.kernel.org/stable/c/6eed6d3cd19ff3cfa83aeceed86da14abaf7417b","https://git.kernel.org/stable/c/b86762dbe19a62e785c189f313cda5b989931f37"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2024-40960","license":"CVE Program Terms of Use","key":"cve-program:CVE-2024-40960","identifiers":["CVE-2024-40960"]},"retained":false,"historicalAffected":[]}],"coverage":[]}