{ "containers": { "cna": { "providerMetadata": { "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038" }, "descriptions": [ { "lang": "en", "value": "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" } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "net/ipv6/fib6_rules.c" ], "versions": [ { "version": "5e5f3f0f8013", "lessThan": "4a5a573387da", "status": "affected", "versionType": "git" }, { "version": "5e5f3f0f8013", "lessThan": "ddec23f206a9", "status": "affected", "versionType": "git" }, { "version": "5e5f3f0f8013", "lessThan": "674c951ab8a2", "status": "affected", "versionType": "git" }, { "version": "5e5f3f0f8013", "lessThan": "35297fc68de3", "status": "affected", "versionType": "git" }, { "version": "5e5f3f0f8013", "lessThan": "7e3242c139c3", "status": "affected", "versionType": "git" }, { "version": "5e5f3f0f8013", "lessThan": "8745a8d74ba1", "status": "affected", "versionType": "git" }, { "version": "5e5f3f0f8013", "lessThan": "1876881c9a49", "status": "affected", "versionType": "git" }, { "version": "5e5f3f0f8013", "lessThan": "d101291b2681", "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/ipv6/fib6_rules.c" ], "versions": [ { "version": "2.6.26", "status": "affected" }, { "version": "0", "lessThan": "2.6.26", "status": "unaffected", "versionType": "custom" }, { "version": "4.19.314", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "custom" }, { "version": "5.4.276", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "custom" }, { "version": "5.10.217", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "custom" }, { "version": "5.15.159", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "custom" }, { "version": "6.1.91", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "custom" }, { "version": "6.6.31", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "custom" }, { "version": "6.8.10", "lessThanOrEqual": "6.8.*", "status": "unaffected", "versionType": "custom" }, { "version": "6.9", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/4a5a573387da6a6b23a4cc62147453ff1bc32afa" }, { "url": "https://git.kernel.org/stable/c/ddec23f206a944c73bcc2724358b85388837daff" }, { "url": "https://git.kernel.org/stable/c/674c951ab8a23f7aff9b4c3f2f865901bc76a290" }, { "url": "https://git.kernel.org/stable/c/35297fc68de36826087e976f86a5b1f94fd0bf95" }, { "url": "https://git.kernel.org/stable/c/7e3242c139c38e60844638e394c2877b16b396b0" }, { "url": "https://git.kernel.org/stable/c/8745a8d74ba17dafe72b6ab461fa6c007d879747" }, { "url": "https://git.kernel.org/stable/c/1876881c9a49613b5249fb400cbf53412d90cb09" }, { "url": "https://git.kernel.org/stable/c/d101291b2681e5ab938554e3e323f7a7ee33e3aa" } ], "title": "ipv6: fib6_rules: avoid possible NULL dereference in fib6_rule_action()", "x_generator": { "engine": "bippy-a5840b7849dd" } } }, "cveMetadata": { "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038", "cveID": "CVE-2024-36902", "requesterUserId": "gregkh@kernel.org", "serial": "1", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.0" }