CVE-2024-36902 (GCVE-0-2024-36902)

Vulnerability from cvelistv5 – Published: 2024-05-30 15:29 – Updated: 2025-05-04 09:11
VLAI?
Title
ipv6: fib6_rules: avoid possible NULL dereference in fib6_rule_action()
Summary
In the Linux kernel, the following vulnerability has been resolved: ipv6: fib6_rules: avoid possible NULL dereference in fib6_rule_action() syzbot is able to trigger the following crash [1], caused by unsafe ip6_dst_idev() use. Indeed ip6_dst_idev() can return NULL, and must always be checked. [1] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN PTI KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] CPU: 0 PID: 31648 Comm: syz-executor.0 Not tainted 6.9.0-rc4-next-20240417-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:__fib6_rule_action net/ipv6/fib6_rules.c:237 [inline] RIP: 0010:fib6_rule_action+0x241/0x7b0 net/ipv6/fib6_rules.c:267 Code: 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 RSP: 0018:ffffc9000fc1f2f0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 1a772f98c8186700 RDX: 0000000000000003 RSI: ffffffff8bcac4e0 RDI: ffffffff8c1f9760 RBP: ffff8880673fb980 R08: ffffffff8fac15ef R09: 1ffffffff1f582bd R10: dffffc0000000000 R11: fffffbfff1f582be R12: dffffc0000000000 R13: 0000000000000080 R14: ffff888076509000 R15: ffff88807a029a00 FS: 00007f55e82ca6c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b31d23000 CR3: 0000000022b66000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> fib_rules_lookup+0x62c/0xdb0 net/core/fib_rules.c:317 fib6_rule_lookup+0x1fd/0x790 net/ipv6/fib6_rules.c:108 ip6_route_output_flags_noref net/ipv6/route.c:2637 [inline] ip6_route_output_flags+0x38e/0x610 net/ipv6/route.c:2649 ip6_route_output include/net/ip6_route.h:93 [inline] ip6_dst_lookup_tail+0x189/0x11a0 net/ipv6/ip6_output.c:1120 ip6_dst_lookup_flow+0xb9/0x180 net/ipv6/ip6_output.c:1250 sctp_v6_get_dst+0x792/0x1e20 net/sctp/ipv6.c:326 sctp_transport_route+0x12c/0x2e0 net/sctp/transport.c:455 sctp_assoc_add_peer+0x614/0x15c0 net/sctp/associola.c:662 sctp_connect_new_asoc+0x31d/0x6c0 net/sctp/socket.c:1099 __sctp_connect+0x66d/0xe30 net/sctp/socket.c:1197 sctp_connect net/sctp/socket.c:4819 [inline] sctp_inet_connect+0x149/0x1f0 net/sctp/socket.c:4834 __sys_connect_file net/socket.c:2048 [inline] __sys_connect+0x2df/0x310 net/socket.c:2065 __do_sys_connect net/socket.c:2075 [inline] __se_sys_connect net/socket.c:2072 [inline] __x64_sys_connect+0x7a/0x90 net/socket.c:2072 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 5e5f3f0f801321078c897a5de0b4b4304f234da0 , < 4a5a573387da6a6b23a4cc62147453ff1bc32afa (git)
Affected: 5e5f3f0f801321078c897a5de0b4b4304f234da0 , < ddec23f206a944c73bcc2724358b85388837daff (git)
Affected: 5e5f3f0f801321078c897a5de0b4b4304f234da0 , < 674c951ab8a23f7aff9b4c3f2f865901bc76a290 (git)
Affected: 5e5f3f0f801321078c897a5de0b4b4304f234da0 , < 35297fc68de36826087e976f86a5b1f94fd0bf95 (git)
Affected: 5e5f3f0f801321078c897a5de0b4b4304f234da0 , < 7e3242c139c38e60844638e394c2877b16b396b0 (git)
Affected: 5e5f3f0f801321078c897a5de0b4b4304f234da0 , < 8745a8d74ba17dafe72b6ab461fa6c007d879747 (git)
Affected: 5e5f3f0f801321078c897a5de0b4b4304f234da0 , < 1876881c9a49613b5249fb400cbf53412d90cb09 (git)
Affected: 5e5f3f0f801321078c897a5de0b4b4304f234da0 , < d101291b2681e5ab938554e3e323f7a7ee33e3aa (git)
Create a notification for this product.
    Linux Linux Affected: 2.6.26
Unaffected: 0 , < 2.6.26 (semver)
Unaffected: 4.19.314 , ≤ 4.19.* (semver)
Unaffected: 5.4.276 , ≤ 5.4.* (semver)
Unaffected: 5.10.217 , ≤ 5.10.* (semver)
Unaffected: 5.15.159 , ≤ 5.15.* (semver)
Unaffected: 6.1.91 , ≤ 6.1.* (semver)
Unaffected: 6.6.31 , ≤ 6.6.* (semver)
Unaffected: 6.8.10 , ≤ 6.8.* (semver)
Unaffected: 6.9 , ≤ * (original_commit_for_fix)
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          "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 \u003c42\u003e 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 \u003cTASK\u003e\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"
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\"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"net/ipv6/fib6_rules.c\"], \"defaultStatus\": \"affected\"}], \"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\"}], \"x_generator\": {\"engine\": \"bippy-5f407fcff5a0\"}, \"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 \u003c42\u003e 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 \u003cTASK\u003e\\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\"}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2024-12-19T09:01:42.861Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-36902\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2024-12-19T09:01:42.861Z\", \"dateReserved\": \"2024-05-30T15:25:07.066Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-05-30T15:29:04.298Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.