CVE-2025-22055 (GCVE-0-2025-22055)
Vulnerability from cvelistv5
Published
2025-04-16 14:12
Modified
2025-05-26 05:17
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: net: fix geneve_opt length integer overflow struct geneve_opt uses 5 bit length for each single option, which means every vary size option should be smaller than 128 bytes. However, all current related Netlink policies cannot promise this length condition and the attacker can exploit a exact 128-byte size option to *fake* a zero length option and confuse the parsing logic, further achieve heap out-of-bounds read. One example crash log is like below: [ 3.905425] ================================================================== [ 3.905925] BUG: KASAN: slab-out-of-bounds in nla_put+0xa9/0xe0 [ 3.906255] Read of size 124 at addr ffff888005f291cc by task poc/177 [ 3.906646] [ 3.906775] CPU: 0 PID: 177 Comm: poc-oob-read Not tainted 6.1.132 #1 [ 3.907131] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014 [ 3.907784] Call Trace: [ 3.907925] <TASK> [ 3.908048] dump_stack_lvl+0x44/0x5c [ 3.908258] print_report+0x184/0x4be [ 3.909151] kasan_report+0xc5/0x100 [ 3.909539] kasan_check_range+0xf3/0x1a0 [ 3.909794] memcpy+0x1f/0x60 [ 3.909968] nla_put+0xa9/0xe0 [ 3.910147] tunnel_key_dump+0x945/0xba0 [ 3.911536] tcf_action_dump_1+0x1c1/0x340 [ 3.912436] tcf_action_dump+0x101/0x180 [ 3.912689] tcf_exts_dump+0x164/0x1e0 [ 3.912905] fw_dump+0x18b/0x2d0 [ 3.913483] tcf_fill_node+0x2ee/0x460 [ 3.914778] tfilter_notify+0xf4/0x180 [ 3.915208] tc_new_tfilter+0xd51/0x10d0 [ 3.918615] rtnetlink_rcv_msg+0x4a2/0x560 [ 3.919118] netlink_rcv_skb+0xcd/0x200 [ 3.919787] netlink_unicast+0x395/0x530 [ 3.921032] netlink_sendmsg+0x3d0/0x6d0 [ 3.921987] __sock_sendmsg+0x99/0xa0 [ 3.922220] __sys_sendto+0x1b7/0x240 [ 3.922682] __x64_sys_sendto+0x72/0x90 [ 3.922906] do_syscall_64+0x5e/0x90 [ 3.923814] entry_SYSCALL_64_after_hwframe+0x6e/0xd8 [ 3.924122] RIP: 0033:0x7e83eab84407 [ 3.924331] Code: 48 89 fa 4c 89 df e8 38 aa 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 faf [ 3.925330] RSP: 002b:00007ffff505e370 EFLAGS: 00000202 ORIG_RAX: 000000000000002c [ 3.925752] RAX: ffffffffffffffda RBX: 00007e83eaafa740 RCX: 00007e83eab84407 [ 3.926173] RDX: 00000000000001a8 RSI: 00007ffff505e3c0 RDI: 0000000000000003 [ 3.926587] RBP: 00007ffff505f460 R08: 00007e83eace1000 R09: 000000000000000c [ 3.926977] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffff505f3c0 [ 3.927367] R13: 00007ffff505f5c8 R14: 00007e83ead1b000 R15: 00005d4fbbe6dcb8 Fix these issues by enforing correct length condition in related policies.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/21748669c5825761cbbf47cbeeb01387ddccc8cb
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2952776c69a1a551649ed770bf22e3f691f6ec65
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4d606069bdd3c76f8ab1f06796c97ef7f4746807
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5a2976cc4d9c36ff58a0f10e35ce4283cbaa9c0e
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/738ae5712215fe9181587d582b23333f02c62ca6
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a2cb85f989e2074e2f392e00188c438cab3de088
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b27055a08ad4b415dcf15b63034f9cb236f7fb40
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b4513ad0f391871d3feee8ddf535609a3aabeeac
Impacted products
Vendor Product Version
Linux Linux Version: 0ed5269f9e41f495c8e9020c85f5e1644c1afc57
Version: 0ed5269f9e41f495c8e9020c85f5e1644c1afc57
Version: 0ed5269f9e41f495c8e9020c85f5e1644c1afc57
Version: 0ed5269f9e41f495c8e9020c85f5e1644c1afc57
Version: 0ed5269f9e41f495c8e9020c85f5e1644c1afc57
Version: 0ed5269f9e41f495c8e9020c85f5e1644c1afc57
Version: 0ed5269f9e41f495c8e9020c85f5e1644c1afc57
Version: 0ed5269f9e41f495c8e9020c85f5e1644c1afc57
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   Linux Linux Version: 4.19
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{
  "containers": {
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          "programFiles": [
            "net/ipv4/ip_tunnel_core.c",
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            "net/sched/act_tunnel_key.c",
            "net/sched/cls_flower.c"
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              "version": "0",
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              "version": "5.10.236",
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              "version": "5.15.180",
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              "version": "6.12.23",
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              "version": "6.14.2",
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      "cpeApplicability": [
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          "nodes": [
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              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: fix geneve_opt length integer overflow\n\nstruct geneve_opt uses 5 bit length for each single option, which\nmeans every vary size option should be smaller than 128 bytes.\n\nHowever, all current related Netlink policies cannot promise this\nlength condition and the attacker can exploit a exact 128-byte size\noption to *fake* a zero length option and confuse the parsing logic,\nfurther achieve heap out-of-bounds read.\n\nOne example crash log is like below:\n\n[    3.905425] ==================================================================\n[    3.905925] BUG: KASAN: slab-out-of-bounds in nla_put+0xa9/0xe0\n[    3.906255] Read of size 124 at addr ffff888005f291cc by task poc/177\n[    3.906646]\n[    3.906775] CPU: 0 PID: 177 Comm: poc-oob-read Not tainted 6.1.132 #1\n[    3.907131] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014\n[    3.907784] Call Trace:\n[    3.907925]  \u003cTASK\u003e\n[    3.908048]  dump_stack_lvl+0x44/0x5c\n[    3.908258]  print_report+0x184/0x4be\n[    3.909151]  kasan_report+0xc5/0x100\n[    3.909539]  kasan_check_range+0xf3/0x1a0\n[    3.909794]  memcpy+0x1f/0x60\n[    3.909968]  nla_put+0xa9/0xe0\n[    3.910147]  tunnel_key_dump+0x945/0xba0\n[    3.911536]  tcf_action_dump_1+0x1c1/0x340\n[    3.912436]  tcf_action_dump+0x101/0x180\n[    3.912689]  tcf_exts_dump+0x164/0x1e0\n[    3.912905]  fw_dump+0x18b/0x2d0\n[    3.913483]  tcf_fill_node+0x2ee/0x460\n[    3.914778]  tfilter_notify+0xf4/0x180\n[    3.915208]  tc_new_tfilter+0xd51/0x10d0\n[    3.918615]  rtnetlink_rcv_msg+0x4a2/0x560\n[    3.919118]  netlink_rcv_skb+0xcd/0x200\n[    3.919787]  netlink_unicast+0x395/0x530\n[    3.921032]  netlink_sendmsg+0x3d0/0x6d0\n[    3.921987]  __sock_sendmsg+0x99/0xa0\n[    3.922220]  __sys_sendto+0x1b7/0x240\n[    3.922682]  __x64_sys_sendto+0x72/0x90\n[    3.922906]  do_syscall_64+0x5e/0x90\n[    3.923814]  entry_SYSCALL_64_after_hwframe+0x6e/0xd8\n[    3.924122] RIP: 0033:0x7e83eab84407\n[    3.924331] Code: 48 89 fa 4c 89 df e8 38 aa 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 \u003c5b\u003e c3 0f 1f 80 00 00 00 00 83 e2 39 83 faf\n[    3.925330] RSP: 002b:00007ffff505e370 EFLAGS: 00000202 ORIG_RAX: 000000000000002c\n[    3.925752] RAX: ffffffffffffffda RBX: 00007e83eaafa740 RCX: 00007e83eab84407\n[    3.926173] RDX: 00000000000001a8 RSI: 00007ffff505e3c0 RDI: 0000000000000003\n[    3.926587] RBP: 00007ffff505f460 R08: 00007e83eace1000 R09: 000000000000000c\n[    3.926977] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffff505f3c0\n[    3.927367] R13: 00007ffff505f5c8 R14: 00007e83ead1b000 R15: 00005d4fbbe6dcb8\n\nFix these issues by enforing correct length condition in related\npolicies."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-26T05:17:29.255Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/a2cb85f989e2074e2f392e00188c438cab3de088"
        },
        {
          "url": "https://git.kernel.org/stable/c/b4513ad0f391871d3feee8ddf535609a3aabeeac"
        },
        {
          "url": "https://git.kernel.org/stable/c/21748669c5825761cbbf47cbeeb01387ddccc8cb"
        },
        {
          "url": "https://git.kernel.org/stable/c/5a2976cc4d9c36ff58a0f10e35ce4283cbaa9c0e"
        },
        {
          "url": "https://git.kernel.org/stable/c/2952776c69a1a551649ed770bf22e3f691f6ec65"
        },
        {
          "url": "https://git.kernel.org/stable/c/738ae5712215fe9181587d582b23333f02c62ca6"
        },
        {
          "url": "https://git.kernel.org/stable/c/4d606069bdd3c76f8ab1f06796c97ef7f4746807"
        },
        {
          "url": "https://git.kernel.org/stable/c/b27055a08ad4b415dcf15b63034f9cb236f7fb40"
        }
      ],
      "title": "net: fix geneve_opt length integer overflow",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-22055",
    "datePublished": "2025-04-16T14:12:12.595Z",
    "dateReserved": "2024-12-29T08:45:45.811Z",
    "dateUpdated": "2025-05-26T05:17:29.255Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-22055\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-04-16T15:15:58.983\",\"lastModified\":\"2025-04-17T20:22:16.240\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnet: fix geneve_opt length integer overflow\\n\\nstruct geneve_opt uses 5 bit length for each single option, which\\nmeans every vary size option should be smaller than 128 bytes.\\n\\nHowever, all current related Netlink policies cannot promise this\\nlength condition and the attacker can exploit a exact 128-byte size\\noption to *fake* a zero length option and confuse the parsing logic,\\nfurther achieve heap out-of-bounds read.\\n\\nOne example crash log is like below:\\n\\n[    3.905425] ==================================================================\\n[    3.905925] BUG: KASAN: slab-out-of-bounds in nla_put+0xa9/0xe0\\n[    3.906255] Read of size 124 at addr ffff888005f291cc by task poc/177\\n[    3.906646]\\n[    3.906775] CPU: 0 PID: 177 Comm: poc-oob-read Not tainted 6.1.132 #1\\n[    3.907131] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014\\n[    3.907784] Call Trace:\\n[    3.907925]  \u003cTASK\u003e\\n[    3.908048]  dump_stack_lvl+0x44/0x5c\\n[    3.908258]  print_report+0x184/0x4be\\n[    3.909151]  kasan_report+0xc5/0x100\\n[    3.909539]  kasan_check_range+0xf3/0x1a0\\n[    3.909794]  memcpy+0x1f/0x60\\n[    3.909968]  nla_put+0xa9/0xe0\\n[    3.910147]  tunnel_key_dump+0x945/0xba0\\n[    3.911536]  tcf_action_dump_1+0x1c1/0x340\\n[    3.912436]  tcf_action_dump+0x101/0x180\\n[    3.912689]  tcf_exts_dump+0x164/0x1e0\\n[    3.912905]  fw_dump+0x18b/0x2d0\\n[    3.913483]  tcf_fill_node+0x2ee/0x460\\n[    3.914778]  tfilter_notify+0xf4/0x180\\n[    3.915208]  tc_new_tfilter+0xd51/0x10d0\\n[    3.918615]  rtnetlink_rcv_msg+0x4a2/0x560\\n[    3.919118]  netlink_rcv_skb+0xcd/0x200\\n[    3.919787]  netlink_unicast+0x395/0x530\\n[    3.921032]  netlink_sendmsg+0x3d0/0x6d0\\n[    3.921987]  __sock_sendmsg+0x99/0xa0\\n[    3.922220]  __sys_sendto+0x1b7/0x240\\n[    3.922682]  __x64_sys_sendto+0x72/0x90\\n[    3.922906]  do_syscall_64+0x5e/0x90\\n[    3.923814]  entry_SYSCALL_64_after_hwframe+0x6e/0xd8\\n[    3.924122] RIP: 0033:0x7e83eab84407\\n[    3.924331] Code: 48 89 fa 4c 89 df e8 38 aa 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 \u003c5b\u003e c3 0f 1f 80 00 00 00 00 83 e2 39 83 faf\\n[    3.925330] RSP: 002b:00007ffff505e370 EFLAGS: 00000202 ORIG_RAX: 000000000000002c\\n[    3.925752] RAX: ffffffffffffffda RBX: 00007e83eaafa740 RCX: 00007e83eab84407\\n[    3.926173] RDX: 00000000000001a8 RSI: 00007ffff505e3c0 RDI: 0000000000000003\\n[    3.926587] RBP: 00007ffff505f460 R08: 00007e83eace1000 R09: 000000000000000c\\n[    3.926977] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffff505f3c0\\n[    3.927367] R13: 00007ffff505f5c8 R14: 00007e83ead1b000 R15: 00005d4fbbe6dcb8\\n\\nFix these issues by enforing correct length condition in related\\npolicies.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/21748669c5825761cbbf47cbeeb01387ddccc8cb\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/2952776c69a1a551649ed770bf22e3f691f6ec65\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/4d606069bdd3c76f8ab1f06796c97ef7f4746807\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/5a2976cc4d9c36ff58a0f10e35ce4283cbaa9c0e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/738ae5712215fe9181587d582b23333f02c62ca6\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/a2cb85f989e2074e2f392e00188c438cab3de088\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/b27055a08ad4b415dcf15b63034f9cb236f7fb40\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/b4513ad0f391871d3feee8ddf535609a3aabeeac\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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