CVE-2024-36008 (GCVE-0-2024-36008)
Vulnerability from cvelistv5
Published
2024-05-20 09:48
Modified
2026-05-12 11:53
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: ipv4: check for NULL idev in ip_route_use_hint() syzbot was able to trigger a NULL deref in fib_validate_source() in an old tree [1]. It appears the bug exists in latest trees. All calls to __in_dev_get_rcu() must be checked for a NULL result. [1] general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] CPU: 2 PID: 3257 Comm: syz-executor.3 Not tainted 5.10.0-syzkaller #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:fib_validate_source+0xbf/0x15a0 net/ipv4/fib_frontend.c:425 Code: 18 f2 f2 f2 f2 42 c7 44 20 23 f3 f3 f3 f3 48 89 44 24 78 42 c6 44 20 27 f3 e8 5d 88 48 fc 4c 89 e8 48 c1 e8 03 48 89 44 24 18 <42> 80 3c 20 00 74 08 4c 89 ef e8 d2 15 98 fc 48 89 5c 24 10 41 bf RSP: 0018:ffffc900015fee40 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff88800f7a4000 RCX: ffff88800f4f90c0 RDX: 0000000000000000 RSI: 0000000004001eac RDI: ffff8880160c64c0 RBP: ffffc900015ff060 R08: 0000000000000000 R09: ffff88800f7a4000 R10: 0000000000000002 R11: ffff88800f4f90c0 R12: dffffc0000000000 R13: 0000000000000000 R14: 0000000000000000 R15: ffff88800f7a4000 FS: 00007f938acfe6c0(0000) GS:ffff888058c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f938acddd58 CR3: 000000001248e000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ip_route_use_hint+0x410/0x9b0 net/ipv4/route.c:2231 ip_rcv_finish_core+0x2c4/0x1a30 net/ipv4/ip_input.c:327 ip_list_rcv_finish net/ipv4/ip_input.c:612 [inline] ip_sublist_rcv+0x3ed/0xe50 net/ipv4/ip_input.c:638 ip_list_rcv+0x422/0x470 net/ipv4/ip_input.c:673 __netif_receive_skb_list_ptype net/core/dev.c:5572 [inline] __netif_receive_skb_list_core+0x6b1/0x890 net/core/dev.c:5620 __netif_receive_skb_list net/core/dev.c:5672 [inline] netif_receive_skb_list_internal+0x9f9/0xdc0 net/core/dev.c:5764 netif_receive_skb_list+0x55/0x3e0 net/core/dev.c:5816 xdp_recv_frames net/bpf/test_run.c:257 [inline] xdp_test_run_batch net/bpf/test_run.c:335 [inline] bpf_test_run_xdp_live+0x1818/0x1d00 net/bpf/test_run.c:363 bpf_prog_test_run_xdp+0x81f/0x1170 net/bpf/test_run.c:1376 bpf_prog_test_run+0x349/0x3c0 kernel/bpf/syscall.c:3736 __sys_bpf+0x45c/0x710 kernel/bpf/syscall.c:5115 __do_sys_bpf kernel/bpf/syscall.c:5201 [inline] __se_sys_bpf kernel/bpf/syscall.c:5199 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5199
References
Impacted products
Vendor Product Version
Linux Linux Version: 02b24941619fcce3d280311ac73b1e461552e9c8
Version: 02b24941619fcce3d280311ac73b1e461552e9c8
Version: 02b24941619fcce3d280311ac73b1e461552e9c8
Version: 02b24941619fcce3d280311ac73b1e461552e9c8
Version: 02b24941619fcce3d280311ac73b1e461552e9c8
Version: 02b24941619fcce3d280311ac73b1e461552e9c8
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nipv4: check for NULL idev in ip_route_use_hint()\n\nsyzbot was able to trigger a NULL deref in fib_validate_source()\nin an old tree [1].\n\nIt appears the bug exists in latest trees.\n\nAll calls to __in_dev_get_rcu() must be checked for a NULL result.\n\n[1]\ngeneral protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] SMP KASAN\nKASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]\nCPU: 2 PID: 3257 Comm: syz-executor.3 Not tainted 5.10.0-syzkaller #0\nHardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014\n RIP: 0010:fib_validate_source+0xbf/0x15a0 net/ipv4/fib_frontend.c:425\nCode: 18 f2 f2 f2 f2 42 c7 44 20 23 f3 f3 f3 f3 48 89 44 24 78 42 c6 44 20 27 f3 e8 5d 88 48 fc 4c 89 e8 48 c1 e8 03 48 89 44 24 18 \u003c42\u003e 80 3c 20 00 74 08 4c 89 ef e8 d2 15 98 fc 48 89 5c 24 10 41 bf\nRSP: 0018:ffffc900015fee40 EFLAGS: 00010246\nRAX: 0000000000000000 RBX: ffff88800f7a4000 RCX: ffff88800f4f90c0\nRDX: 0000000000000000 RSI: 0000000004001eac RDI: ffff8880160c64c0\nRBP: ffffc900015ff060 R08: 0000000000000000 R09: ffff88800f7a4000\nR10: 0000000000000002 R11: ffff88800f4f90c0 R12: dffffc0000000000\nR13: 0000000000000000 R14: 0000000000000000 R15: ffff88800f7a4000\nFS:  00007f938acfe6c0(0000) GS:ffff888058c00000(0000) knlGS:0000000000000000\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 00007f938acddd58 CR3: 000000001248e000 CR4: 0000000000352ef0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\nCall Trace:\n  ip_route_use_hint+0x410/0x9b0 net/ipv4/route.c:2231\n  ip_rcv_finish_core+0x2c4/0x1a30 net/ipv4/ip_input.c:327\n  ip_list_rcv_finish net/ipv4/ip_input.c:612 [inline]\n  ip_sublist_rcv+0x3ed/0xe50 net/ipv4/ip_input.c:638\n  ip_list_rcv+0x422/0x470 net/ipv4/ip_input.c:673\n  __netif_receive_skb_list_ptype net/core/dev.c:5572 [inline]\n  __netif_receive_skb_list_core+0x6b1/0x890 net/core/dev.c:5620\n  __netif_receive_skb_list net/core/dev.c:5672 [inline]\n  netif_receive_skb_list_internal+0x9f9/0xdc0 net/core/dev.c:5764\n  netif_receive_skb_list+0x55/0x3e0 net/core/dev.c:5816\n  xdp_recv_frames net/bpf/test_run.c:257 [inline]\n  xdp_test_run_batch net/bpf/test_run.c:335 [inline]\n  bpf_test_run_xdp_live+0x1818/0x1d00 net/bpf/test_run.c:363\n  bpf_prog_test_run_xdp+0x81f/0x1170 net/bpf/test_run.c:1376\n  bpf_prog_test_run+0x349/0x3c0 kernel/bpf/syscall.c:3736\n  __sys_bpf+0x45c/0x710 kernel/bpf/syscall.c:5115\n  __do_sys_bpf kernel/bpf/syscall.c:5201 [inline]\n  __se_sys_bpf kernel/bpf/syscall.c:5199 [inline]\n  __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5199"
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  "cveMetadata": {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2024-36008",
    "datePublished": "2024-05-20T09:48:07.596Z",
    "dateReserved": "2024-05-17T13:50:33.152Z",
    "dateUpdated": "2026-05-12T11:53:38.481Z",
    "state": "PUBLISHED"
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  "dataVersion": "5.2"
}


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