CVE-2025-22056 (GCVE-0-2025-22056)

Vulnerability from cvelistv5 – Published: 2025-04-16 14:12 – Updated: 2026-05-11 21:11
VLAI
Title
netfilter: nft_tunnel: fix geneve_opt type confusion addition
Summary
In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_tunnel: fix geneve_opt type confusion addition When handling multiple NFTA_TUNNEL_KEY_OPTS_GENEVE attributes, the parsing logic should place every geneve_opt structure one by one compactly. Hence, when deciding the next geneve_opt position, the pointer addition should be in units of char *. However, the current implementation erroneously does type conversion before the addition, which will lead to heap out-of-bounds write. [ 6.989857] ================================================================== [ 6.990293] BUG: KASAN: slab-out-of-bounds in nft_tunnel_obj_init+0x977/0xa70 [ 6.990725] Write of size 124 at addr ffff888005f18974 by task poc/178 [ 6.991162] [ 6.991259] CPU: 0 PID: 178 Comm: poc-oob-write Not tainted 6.1.132 #1 [ 6.991655] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014 [ 6.992281] Call Trace: [ 6.992423] <TASK> [ 6.992586] dump_stack_lvl+0x44/0x5c [ 6.992801] print_report+0x184/0x4be [ 6.993790] kasan_report+0xc5/0x100 [ 6.994252] kasan_check_range+0xf3/0x1a0 [ 6.994486] memcpy+0x38/0x60 [ 6.994692] nft_tunnel_obj_init+0x977/0xa70 [ 6.995677] nft_obj_init+0x10c/0x1b0 [ 6.995891] nf_tables_newobj+0x585/0x950 [ 6.996922] nfnetlink_rcv_batch+0xdf9/0x1020 [ 6.998997] nfnetlink_rcv+0x1df/0x220 [ 6.999537] netlink_unicast+0x395/0x530 [ 7.000771] netlink_sendmsg+0x3d0/0x6d0 [ 7.001462] __sock_sendmsg+0x99/0xa0 [ 7.001707] ____sys_sendmsg+0x409/0x450 [ 7.002391] ___sys_sendmsg+0xfd/0x170 [ 7.003145] __sys_sendmsg+0xea/0x170 [ 7.004359] do_syscall_64+0x5e/0x90 [ 7.005817] entry_SYSCALL_64_after_hwframe+0x6e/0xd8 [ 7.006127] RIP: 0033:0x7ec756d4e407 [ 7.006339] 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 [ 7.007364] RSP: 002b:00007ffed5d46760 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 7.007827] RAX: ffffffffffffffda RBX: 00007ec756cc4740 RCX: 00007ec756d4e407 [ 7.008223] RDX: 0000000000000000 RSI: 00007ffed5d467f0 RDI: 0000000000000003 [ 7.008620] RBP: 00007ffed5d468a0 R08: 0000000000000000 R09: 0000000000000000 [ 7.009039] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000 [ 7.009429] R13: 00007ffed5d478b0 R14: 00007ec756ee5000 R15: 00005cbd4e655cb8 Fix this bug with correct pointer addition and conversion in parse and dump code.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 925d844696d9287f841d6b3e0ed62a35fb175970 , < 31d49eb436f2da61280508d7adf8c9b473b967aa (git)
Affected: 925d844696d9287f841d6b3e0ed62a35fb175970 , < ca2adfc03cd6273f0b589fe65afc6f75e0fe116e (git)
Affected: 925d844696d9287f841d6b3e0ed62a35fb175970 , < a263d31c8c92e5919d41af57d9479cfb66323782 (git)
Affected: 925d844696d9287f841d6b3e0ed62a35fb175970 , < 28d88ee1e1cc8ac2d79aeb112717b97c5c833d43 (git)
Affected: 925d844696d9287f841d6b3e0ed62a35fb175970 , < 0a93a710d6df334b828ea064c6d39fda34f901dc (git)
Affected: 925d844696d9287f841d6b3e0ed62a35fb175970 , < 446d94898c560ed2f61e26ae445858a4c4830762 (git)
Affected: 925d844696d9287f841d6b3e0ed62a35fb175970 , < 708e268acb3a446ad2a8a3d2e9bd41cc23660cd6 (git)
Affected: 925d844696d9287f841d6b3e0ed62a35fb175970 , < 1b755d8eb1ace3870789d48fbd94f386ad6e30be (git)
Create a notification for this product.
Linux Linux Affected: 5.7
Unaffected: 0 , < 5.7 (semver)
Unaffected: 5.10.236 , ≤ 5.10.* (semver)
Unaffected: 5.15.180 , ≤ 5.15.* (semver)
Unaffected: 6.1.134 , ≤ 6.1.* (semver)
Unaffected: 6.6.87 , ≤ 6.6.* (semver)
Unaffected: 6.12.23 , ≤ 6.12.* (semver)
Unaffected: 6.13.11 , ≤ 6.13.* (semver)
Unaffected: 6.14.2 , ≤ 6.14.* (semver)
Unaffected: 6.15 , ≤ * (original_commit_for_fix)
Create a notification for this product.
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nft_tunnel: fix geneve_opt type confusion addition\n\nWhen handling multiple NFTA_TUNNEL_KEY_OPTS_GENEVE attributes, the\nparsing logic should place every geneve_opt structure one by one\ncompactly. Hence, when deciding the next geneve_opt position, the\npointer addition should be in units of char *.\n\nHowever, the current implementation erroneously does type conversion\nbefore the addition, which will lead to heap out-of-bounds write.\n\n[    6.989857] ==================================================================\n[    6.990293] BUG: KASAN: slab-out-of-bounds in nft_tunnel_obj_init+0x977/0xa70\n[    6.990725] Write of size 124 at addr ffff888005f18974 by task poc/178\n[    6.991162]\n[    6.991259] CPU: 0 PID: 178 Comm: poc-oob-write Not tainted 6.1.132 #1\n[    6.991655] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014\n[    6.992281] Call Trace:\n[    6.992423]  \u003cTASK\u003e\n[    6.992586]  dump_stack_lvl+0x44/0x5c\n[    6.992801]  print_report+0x184/0x4be\n[    6.993790]  kasan_report+0xc5/0x100\n[    6.994252]  kasan_check_range+0xf3/0x1a0\n[    6.994486]  memcpy+0x38/0x60\n[    6.994692]  nft_tunnel_obj_init+0x977/0xa70\n[    6.995677]  nft_obj_init+0x10c/0x1b0\n[    6.995891]  nf_tables_newobj+0x585/0x950\n[    6.996922]  nfnetlink_rcv_batch+0xdf9/0x1020\n[    6.998997]  nfnetlink_rcv+0x1df/0x220\n[    6.999537]  netlink_unicast+0x395/0x530\n[    7.000771]  netlink_sendmsg+0x3d0/0x6d0\n[    7.001462]  __sock_sendmsg+0x99/0xa0\n[    7.001707]  ____sys_sendmsg+0x409/0x450\n[    7.002391]  ___sys_sendmsg+0xfd/0x170\n[    7.003145]  __sys_sendmsg+0xea/0x170\n[    7.004359]  do_syscall_64+0x5e/0x90\n[    7.005817]  entry_SYSCALL_64_after_hwframe+0x6e/0xd8\n[    7.006127] RIP: 0033:0x7ec756d4e407\n[    7.006339] 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[    7.007364] RSP: 002b:00007ffed5d46760 EFLAGS: 00000202 ORIG_RAX: 000000000000002e\n[    7.007827] RAX: ffffffffffffffda RBX: 00007ec756cc4740 RCX: 00007ec756d4e407\n[    7.008223] RDX: 0000000000000000 RSI: 00007ffed5d467f0 RDI: 0000000000000003\n[    7.008620] RBP: 00007ffed5d468a0 R08: 0000000000000000 R09: 0000000000000000\n[    7.009039] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000\n[    7.009429] R13: 00007ffed5d478b0 R14: 00007ec756ee5000 R15: 00005cbd4e655cb8\n\nFix this bug with correct pointer addition and conversion in parse\nand dump code."
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        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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        {
          "url": "https://git.kernel.org/stable/c/31d49eb436f2da61280508d7adf8c9b473b967aa"
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        {
          "url": "https://git.kernel.org/stable/c/ca2adfc03cd6273f0b589fe65afc6f75e0fe116e"
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        {
          "url": "https://git.kernel.org/stable/c/a263d31c8c92e5919d41af57d9479cfb66323782"
        },
        {
          "url": "https://git.kernel.org/stable/c/28d88ee1e1cc8ac2d79aeb112717b97c5c833d43"
        },
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          "url": "https://git.kernel.org/stable/c/0a93a710d6df334b828ea064c6d39fda34f901dc"
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        {
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        },
        {
          "url": "https://git.kernel.org/stable/c/1b755d8eb1ace3870789d48fbd94f386ad6e30be"
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      ],
      "title": "netfilter: nft_tunnel: fix geneve_opt type confusion addition",
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    "assignerShortName": "Linux",
    "cveId": "CVE-2025-22056",
    "datePublished": "2025-04-16T14:12:13.440Z",
    "dateReserved": "2024-12-29T08:45:45.812Z",
    "dateUpdated": "2026-05-11T21:11:47.291Z",
    "state": "PUBLISHED"
  },
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  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2025-22056",
      "date": "2026-06-14",
      "epss": "0.00013",
      "percentile": "0.02211"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-22056\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-04-16T15:15:59.087\",\"lastModified\":\"2025-11-03T20:17:40.557\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnetfilter: nft_tunnel: fix geneve_opt type confusion addition\\n\\nWhen handling multiple NFTA_TUNNEL_KEY_OPTS_GENEVE attributes, the\\nparsing logic should place every geneve_opt structure one by one\\ncompactly. Hence, when deciding the next geneve_opt position, the\\npointer addition should be in units of char *.\\n\\nHowever, the current implementation erroneously does type conversion\\nbefore the addition, which will lead to heap out-of-bounds write.\\n\\n[    6.989857] ==================================================================\\n[    6.990293] BUG: KASAN: slab-out-of-bounds in nft_tunnel_obj_init+0x977/0xa70\\n[    6.990725] Write of size 124 at addr ffff888005f18974 by task poc/178\\n[    6.991162]\\n[    6.991259] CPU: 0 PID: 178 Comm: poc-oob-write Not tainted 6.1.132 #1\\n[    6.991655] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014\\n[    6.992281] Call Trace:\\n[    6.992423]  \u003cTASK\u003e\\n[    6.992586]  dump_stack_lvl+0x44/0x5c\\n[    6.992801]  print_report+0x184/0x4be\\n[    6.993790]  kasan_report+0xc5/0x100\\n[    6.994252]  kasan_check_range+0xf3/0x1a0\\n[    6.994486]  memcpy+0x38/0x60\\n[    6.994692]  nft_tunnel_obj_init+0x977/0xa70\\n[    6.995677]  nft_obj_init+0x10c/0x1b0\\n[    6.995891]  nf_tables_newobj+0x585/0x950\\n[    6.996922]  nfnetlink_rcv_batch+0xdf9/0x1020\\n[    6.998997]  nfnetlink_rcv+0x1df/0x220\\n[    6.999537]  netlink_unicast+0x395/0x530\\n[    7.000771]  netlink_sendmsg+0x3d0/0x6d0\\n[    7.001462]  __sock_sendmsg+0x99/0xa0\\n[    7.001707]  ____sys_sendmsg+0x409/0x450\\n[    7.002391]  ___sys_sendmsg+0xfd/0x170\\n[    7.003145]  __sys_sendmsg+0xea/0x170\\n[    7.004359]  do_syscall_64+0x5e/0x90\\n[    7.005817]  entry_SYSCALL_64_after_hwframe+0x6e/0xd8\\n[    7.006127] RIP: 0033:0x7ec756d4e407\\n[    7.006339] 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[    7.007364] RSP: 002b:00007ffed5d46760 EFLAGS: 00000202 ORIG_RAX: 000000000000002e\\n[    7.007827] RAX: ffffffffffffffda RBX: 00007ec756cc4740 RCX: 00007ec756d4e407\\n[    7.008223] RDX: 0000000000000000 RSI: 00007ffed5d467f0 RDI: 0000000000000003\\n[    7.008620] RBP: 00007ffed5d468a0 R08: 0000000000000000 R09: 0000000000000000\\n[    7.009039] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000\\n[    7.009429] R13: 00007ffed5d478b0 R14: 00007ec756ee5000 R15: 00005cbd4e655cb8\\n\\nFix this bug with correct pointer addition and conversion in parse\\nand dump code.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: netfilter: nft_tunnel: correcci\u00f3n de la adici\u00f3n por confusi\u00f3n de tipos en geneve_opt. Al gestionar varios atributos NFTA_TUNNEL_KEY_OPTS_GENEVE, la l\u00f3gica de an\u00e1lisis deber\u00eda colocar cada estructura geneve_opt una a una de forma compacta. Por lo tanto, al determinar la siguiente posici\u00f3n de geneve_opt, la adici\u00f3n del puntero deber\u00eda realizarse en unidades de char *. Sin embargo, la implementaci\u00f3n actual realiza err\u00f3neamente la conversi\u00f3n de tipos antes de la adici\u00f3n, lo que provoca escrituras fuera de los l\u00edmites en el mont\u00edculo. [ 6.989857] ======================================================================= [ 6.990293] ERROR: KASAN: slab-out-of-bounds in nft_tunnel_obj_init+0x977/0xa70 [ 6.990725] Write of size 124 at addr ffff888005f18974 by task poc/178 [ 6.991162] [ 6.991259] CPU: 0 PID: 178 Comm: poc-oob-write Not tainted 6.1.132 #1 [ 6.991655] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014 [ 6.992281] Call Trace: [ 6.992423]  [ 6.992586] dump_stack_lvl+0x44/0x5c [ 6.992801] print_report+0x184/0x4be [ 6.993790] kasan_report+0xc5/0x100 [ 6.994252] kasan_check_range+0xf3/0x1a0 [ 6.994486] memcpy+0x38/0x60 [ 6.994692] nft_tunnel_obj_init+0x977/0xa70 [ 6.995677] nft_obj_init+0x10c/0x1b0 [ 6.995891] nf_tables_newobj+0x585/0x950 [ 6.996922] nfnetlink_rcv_batch+0xdf9/0x1020 [ 6.998997] nfnetlink_rcv+0x1df/0x220 [ 6.999537] netlink_unicast+0x395/0x530 [ 7.000771] netlink_sendmsg+0x3d0/0x6d0 [ 7.001462] __sock_sendmsg+0x99/0xa0 [ 7.001707] ____sys_sendmsg+0x409/0x450 [ 7.002391] ___sys_sendmsg+0xfd/0x170 [ 7.003145] __sys_sendmsg+0xea/0x170 [ 7.004359] do_syscall_64+0x5e/0x90 [ 7.005817] entry_SYSCALL_64_after_hwframe+0x6e/0xd8 [ 7.006127] RIP: 0033:0x7ec756d4e407 [ 7.006339] 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 \u0026lt;5b\u0026gt; c3 0f 1f 80 00 00 00 00 83 e2 39 83 faf [ 7.007364] RSP: 002b:00007ffed5d46760 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 7.007827] RAX: ffffffffffffffda RBX: 00007ec756cc4740 RCX: 00007ec756d4e407 [ 7.008223] RDX: 0000000000000000 RSI: 00007ffed5d467f0 RDI: 0000000000000003 [ 7.008620] RBP: 00007ffed5d468a0 R08: 0000000000000000 R09: 0000000000000000 [ 7.009039] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000 [ 7.009429] R13: 00007ffed5d478b0 R14: 00007ec756ee5000 R15: 00005cbd4e655cb8 Corrija este error con la correcta adici\u00f3n y conversi\u00f3n de punteros en el c\u00f3digo de an\u00e1lisis y volcado.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":7.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.9},{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":7.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.9}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-787\"}]},{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-787\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.7\",\"versionEndExcluding\":\"5.10.236\",\"matchCriteriaId\":\"1F9686CC-6114-42BE-BA92-079AFF3783A6\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.15.180\",\"matchCriteriaId\":\"D19801C8-3D18-405D-9989-E6C9B30255FA\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"6.1.134\",\"matchCriteriaId\":\"3985DEC3-0437-4177-BC42-314AB575285A\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.2\",\"versionEndExcluding\":\"6.6.87\",\"matchCriteriaId\":\"EFF24260-49B1-4251-9477-C564CFDAD25B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7\",\"versionEndExcluding\":\"6.12.23\",\"matchCriteriaId\":\"26CAB76D-F00F-43CE-BEAD-7097F8FB1D6C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.13\",\"versionEndExcluding\":\"6.13.11\",\"matchCriteriaId\":\"E7E864B0-8C00-4679-BA55-659B4C9C3AD3\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.14\",\"versionEndExcluding\":\"6.14.2\",\"matchCriteriaId\":\"FADAE5D8-4808-442C-B218-77B2CE8780A0\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/0a93a710d6df334b828ea064c6d39fda34f901dc\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/1b755d8eb1ace3870789d48fbd94f386ad6e30be\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/28d88ee1e1cc8ac2d79aeb112717b97c5c833d43\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/31d49eb436f2da61280508d7adf8c9b473b967aa\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/446d94898c560ed2f61e26ae445858a4c4830762\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/708e268acb3a446ad2a8a3d2e9bd41cc23660cd6\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/a263d31c8c92e5919d41af57d9479cfb66323782\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/ca2adfc03cd6273f0b589fe65afc6f75e0fe116e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 7.8, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"HIGH\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2025-22056\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-10-01T17:41:22.716014Z\"}}}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-787\", \"description\": \"CWE-787 Out-of-bounds Write\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-10-01T14:40:53.113Z\"}}], \"cna\": {\"title\": \"netfilter: nft_tunnel: fix geneve_opt type confusion addition\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"925d844696d9287f841d6b3e0ed62a35fb175970\", \"lessThan\": \"31d49eb436f2da61280508d7adf8c9b473b967aa\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"925d844696d9287f841d6b3e0ed62a35fb175970\", \"lessThan\": \"ca2adfc03cd6273f0b589fe65afc6f75e0fe116e\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"925d844696d9287f841d6b3e0ed62a35fb175970\", \"lessThan\": \"a263d31c8c92e5919d41af57d9479cfb66323782\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"925d844696d9287f841d6b3e0ed62a35fb175970\", \"lessThan\": \"28d88ee1e1cc8ac2d79aeb112717b97c5c833d43\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"925d844696d9287f841d6b3e0ed62a35fb175970\", \"lessThan\": \"0a93a710d6df334b828ea064c6d39fda34f901dc\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"925d844696d9287f841d6b3e0ed62a35fb175970\", \"lessThan\": \"446d94898c560ed2f61e26ae445858a4c4830762\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"925d844696d9287f841d6b3e0ed62a35fb175970\", \"lessThan\": \"708e268acb3a446ad2a8a3d2e9bd41cc23660cd6\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"925d844696d9287f841d6b3e0ed62a35fb175970\", \"lessThan\": \"1b755d8eb1ace3870789d48fbd94f386ad6e30be\", \"versionType\": \"git\"}], \"programFiles\": [\"net/netfilter/nft_tunnel.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"5.7\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"5.7\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"5.10.236\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.180\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.134\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6.87\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.12.23\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.12.*\"}, {\"status\": \"unaffected\", \"version\": \"6.13.11\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.13.*\"}, {\"status\": \"unaffected\", \"version\": \"6.14.2\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.14.*\"}, {\"status\": \"unaffected\", \"version\": \"6.15\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"net/netfilter/nft_tunnel.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/31d49eb436f2da61280508d7adf8c9b473b967aa\"}, {\"url\": \"https://git.kernel.org/stable/c/ca2adfc03cd6273f0b589fe65afc6f75e0fe116e\"}, {\"url\": \"https://git.kernel.org/stable/c/a263d31c8c92e5919d41af57d9479cfb66323782\"}, {\"url\": \"https://git.kernel.org/stable/c/28d88ee1e1cc8ac2d79aeb112717b97c5c833d43\"}, {\"url\": \"https://git.kernel.org/stable/c/0a93a710d6df334b828ea064c6d39fda34f901dc\"}, {\"url\": \"https://git.kernel.org/stable/c/446d94898c560ed2f61e26ae445858a4c4830762\"}, {\"url\": \"https://git.kernel.org/stable/c/708e268acb3a446ad2a8a3d2e9bd41cc23660cd6\"}, {\"url\": \"https://git.kernel.org/stable/c/1b755d8eb1ace3870789d48fbd94f386ad6e30be\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnetfilter: nft_tunnel: fix geneve_opt type confusion addition\\n\\nWhen handling multiple NFTA_TUNNEL_KEY_OPTS_GENEVE attributes, the\\nparsing logic should place every geneve_opt structure one by one\\ncompactly. Hence, when deciding the next geneve_opt position, the\\npointer addition should be in units of char *.\\n\\nHowever, the current implementation erroneously does type conversion\\nbefore the addition, which will lead to heap out-of-bounds write.\\n\\n[    6.989857] ==================================================================\\n[    6.990293] BUG: KASAN: slab-out-of-bounds in nft_tunnel_obj_init+0x977/0xa70\\n[    6.990725] Write of size 124 at addr ffff888005f18974 by task poc/178\\n[    6.991162]\\n[    6.991259] CPU: 0 PID: 178 Comm: poc-oob-write Not tainted 6.1.132 #1\\n[    6.991655] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014\\n[    6.992281] Call Trace:\\n[    6.992423]  \u003cTASK\u003e\\n[    6.992586]  dump_stack_lvl+0x44/0x5c\\n[    6.992801]  print_report+0x184/0x4be\\n[    6.993790]  kasan_report+0xc5/0x100\\n[    6.994252]  kasan_check_range+0xf3/0x1a0\\n[    6.994486]  memcpy+0x38/0x60\\n[    6.994692]  nft_tunnel_obj_init+0x977/0xa70\\n[    6.995677]  nft_obj_init+0x10c/0x1b0\\n[    6.995891]  nf_tables_newobj+0x585/0x950\\n[    6.996922]  nfnetlink_rcv_batch+0xdf9/0x1020\\n[    6.998997]  nfnetlink_rcv+0x1df/0x220\\n[    6.999537]  netlink_unicast+0x395/0x530\\n[    7.000771]  netlink_sendmsg+0x3d0/0x6d0\\n[    7.001462]  __sock_sendmsg+0x99/0xa0\\n[    7.001707]  ____sys_sendmsg+0x409/0x450\\n[    7.002391]  ___sys_sendmsg+0xfd/0x170\\n[    7.003145]  __sys_sendmsg+0xea/0x170\\n[    7.004359]  do_syscall_64+0x5e/0x90\\n[    7.005817]  entry_SYSCALL_64_after_hwframe+0x6e/0xd8\\n[    7.006127] RIP: 0033:0x7ec756d4e407\\n[    7.006339] 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[    7.007364] RSP: 002b:00007ffed5d46760 EFLAGS: 00000202 ORIG_RAX: 000000000000002e\\n[    7.007827] RAX: ffffffffffffffda RBX: 00007ec756cc4740 RCX: 00007ec756d4e407\\n[    7.008223] RDX: 0000000000000000 RSI: 00007ffed5d467f0 RDI: 0000000000000003\\n[    7.008620] RBP: 00007ffed5d468a0 R08: 0000000000000000 R09: 0000000000000000\\n[    7.009039] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000\\n[    7.009429] R13: 00007ffed5d478b0 R14: 00007ec756ee5000 R15: 00005cbd4e655cb8\\n\\nFix this bug with correct pointer addition and conversion in parse\\nand dump code.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.236\", \"versionStartIncluding\": \"5.7\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.180\", \"versionStartIncluding\": \"5.7\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.134\", \"versionStartIncluding\": \"5.7\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.87\", \"versionStartIncluding\": \"5.7\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.12.23\", \"versionStartIncluding\": \"5.7\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.13.11\", \"versionStartIncluding\": \"5.7\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.14.2\", \"versionStartIncluding\": \"5.7\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.15\", \"versionStartIncluding\": \"5.7\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-05-26T05:17:30.555Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2025-22056\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-10-01T17:41:26.294Z\", \"dateReserved\": \"2024-12-29T08:45:45.812Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2025-04-16T14:12:13.440Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

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.