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CVE-2025-37781 (GCVE-0-2025-37781)

Vulnerability from cvelistv5 – Published: 2025-05-01 13:07 – Updated: 2026-05-11 21:15
VLAI
Title
i2c: cros-ec-tunnel: defer probe if parent EC is not present
Summary
In the Linux kernel, the following vulnerability has been resolved: i2c: cros-ec-tunnel: defer probe if parent EC is not present When i2c-cros-ec-tunnel and the EC driver are built-in, the EC parent device will not be found, leading to NULL pointer dereference. That can also be reproduced by unbinding the controller driver and then loading i2c-cros-ec-tunnel module (or binding the device). [ 271.991245] BUG: kernel NULL pointer dereference, address: 0000000000000058 [ 271.998215] #PF: supervisor read access in kernel mode [ 272.003351] #PF: error_code(0x0000) - not-present page [ 272.008485] PGD 0 P4D 0 [ 272.011022] Oops: Oops: 0000 [#1] SMP NOPTI [ 272.015207] CPU: 0 UID: 0 PID: 3859 Comm: insmod Tainted: G S 6.15.0-rc1-00004-g44722359ed83 #30 PREEMPT(full) 3c7fb39a552e7d949de2ad921a7d6588d3a4fdc5 [ 272.030312] Tainted: [S]=CPU_OUT_OF_SPEC [ 272.034233] Hardware name: HP Berknip/Berknip, BIOS Google_Berknip.13434.356.0 05/17/2021 [ 272.042400] RIP: 0010:ec_i2c_probe+0x2b/0x1c0 [i2c_cros_ec_tunnel] [ 272.048577] Code: 1f 44 00 00 41 57 41 56 41 55 41 54 53 48 83 ec 10 65 48 8b 05 06 a0 6c e7 48 89 44 24 08 4c 8d 7f 10 48 8b 47 50 4c 8b 60 78 <49> 83 7c 24 58 00 0f 84 2f 01 00 00 48 89 fb be 30 06 00 00 4c 9 [ 272.067317] RSP: 0018:ffffa32082a03940 EFLAGS: 00010282 [ 272.072541] RAX: ffff969580b6a810 RBX: ffff969580b68c10 RCX: 0000000000000000 [ 272.079672] RDX: 0000000000000000 RSI: 0000000000000282 RDI: ffff969580b68c00 [ 272.086804] RBP: 00000000fffffdfb R08: 0000000000000000 R09: 0000000000000000 [ 272.093936] R10: 0000000000000000 R11: ffffffffc0600000 R12: 0000000000000000 [ 272.101067] R13: ffffffffa666fbb8 R14: ffffffffc05b5528 R15: ffff969580b68c10 [ 272.108198] FS: 00007b930906fc40(0000) GS:ffff969603149000(0000) knlGS:0000000000000000 [ 272.116282] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 272.122024] CR2: 0000000000000058 CR3: 000000012631c000 CR4: 00000000003506f0 [ 272.129155] Call Trace: [ 272.131606] <TASK> [ 272.133709] ? acpi_dev_pm_attach+0xdd/0x110 [ 272.137985] platform_probe+0x69/0xa0 [ 272.141652] really_probe+0x152/0x310 [ 272.145318] __driver_probe_device+0x77/0x110 [ 272.149678] driver_probe_device+0x1e/0x190 [ 272.153864] __driver_attach+0x10b/0x1e0 [ 272.157790] ? driver_attach+0x20/0x20 [ 272.161542] bus_for_each_dev+0x107/0x150 [ 272.165553] bus_add_driver+0x15d/0x270 [ 272.169392] driver_register+0x65/0x110 [ 272.173232] ? cleanup_module+0xa80/0xa80 [i2c_cros_ec_tunnel 3a00532f3f4af4a9eade753f86b0f8dd4e4e5698] [ 272.182617] do_one_initcall+0x110/0x350 [ 272.186543] ? security_kernfs_init_security+0x49/0xd0 [ 272.191682] ? __kernfs_new_node+0x1b9/0x240 [ 272.195954] ? security_kernfs_init_security+0x49/0xd0 [ 272.201093] ? __kernfs_new_node+0x1b9/0x240 [ 272.205365] ? kernfs_link_sibling+0x105/0x130 [ 272.209810] ? kernfs_next_descendant_post+0x1c/0xa0 [ 272.214773] ? kernfs_activate+0x57/0x70 [ 272.218699] ? kernfs_add_one+0x118/0x160 [ 272.222710] ? __kernfs_create_file+0x71/0xa0 [ 272.227069] ? sysfs_add_bin_file_mode_ns+0xd6/0x110 [ 272.232033] ? internal_create_group+0x453/0x4a0 [ 272.236651] ? __vunmap_range_noflush+0x214/0x2d0 [ 272.241355] ? __free_frozen_pages+0x1dc/0x420 [ 272.245799] ? free_vmap_area_noflush+0x10a/0x1c0 [ 272.250505] ? load_module+0x1509/0x16f0 [ 272.254431] do_init_module+0x60/0x230 [ 272.258181] __se_sys_finit_module+0x27a/0x370 [ 272.262627] do_syscall_64+0x6a/0xf0 [ 272.266206] ? do_syscall_64+0x76/0xf0 [ 272.269956] ? irqentry_exit_to_user_mode+0x79/0x90 [ 272.274836] entry_SYSCALL_64_after_hwframe+0x55/0x5d [ 272.279887] RIP: 0033:0x7b9309168d39 [ 272.283466] Code: 5b 41 5c 5d c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d af 40 0c 00 f7 d8 64 89 01 8 [ 272.302210] RSP: 002b:00007fff50f1a288 EFLAGS: 00000246 ORIG_RAX: 000 ---truncated---
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 9d230c9e4f4e67cb1c1cb9e0f6142da16b0f2796 , < 092de5ac8cb2eaa9593a765fa92ba39d8173f984 (git)
Affected: 9d230c9e4f4e67cb1c1cb9e0f6142da16b0f2796 , < b66d4910a608427367c4e21499e149f085782df7 (git)
Affected: 9d230c9e4f4e67cb1c1cb9e0f6142da16b0f2796 , < cd83035b6f2a102c2d5acd3bfb2a11ff967aaba6 (git)
Affected: 9d230c9e4f4e67cb1c1cb9e0f6142da16b0f2796 , < 3090cad5ccff8963b95160f4060068048a1e4c4c (git)
Affected: 9d230c9e4f4e67cb1c1cb9e0f6142da16b0f2796 , < e89bf1311d4497c6743f3021e9c481b16c3a41c9 (git)
Affected: 9d230c9e4f4e67cb1c1cb9e0f6142da16b0f2796 , < 1355b5ca4782be85a2ef7275e4c508f770d0fb27 (git)
Affected: 9d230c9e4f4e67cb1c1cb9e0f6142da16b0f2796 , < da8edc9eb2516aface7f86be5fa6d09c0d07b9f8 (git)
Affected: 9d230c9e4f4e67cb1c1cb9e0f6142da16b0f2796 , < 424eafe65647a8d6c690284536e711977153195a (git)
guessed Create a notification for this product.
Linux Linux Affected: 3.16
Unaffected: 0 , < 3.16 (semver)
Unaffected: 5.4.293 , ≤ 5.4.* (semver)
Unaffected: 5.10.237 , ≤ 5.10.* (semver)
Unaffected: 5.15.181 , ≤ 5.15.* (semver)
Unaffected: 6.1.135 , ≤ 6.1.* (semver)
Unaffected: 6.6.88 , ≤ 6.6.* (semver)
Unaffected: 6.12.25 , ≤ 6.12.* (semver)
Unaffected: 6.14.4 , ≤ 6.14.* (semver)
Unaffected: 6.15 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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            "url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html"
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            "url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html"
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          "product": "Linux",
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ni2c: cros-ec-tunnel: defer probe if parent EC is not present\n\nWhen i2c-cros-ec-tunnel and the EC driver are built-in, the EC parent\ndevice will not be found, leading to NULL pointer dereference.\n\nThat can also be reproduced by unbinding the controller driver and then\nloading i2c-cros-ec-tunnel module (or binding the device).\n\n[  271.991245] BUG: kernel NULL pointer dereference, address: 0000000000000058\n[  271.998215] #PF: supervisor read access in kernel mode\n[  272.003351] #PF: error_code(0x0000) - not-present page\n[  272.008485] PGD 0 P4D 0\n[  272.011022] Oops: Oops: 0000 [#1] SMP NOPTI\n[  272.015207] CPU: 0 UID: 0 PID: 3859 Comm: insmod Tainted: G S                  6.15.0-rc1-00004-g44722359ed83 #30 PREEMPT(full)  3c7fb39a552e7d949de2ad921a7d6588d3a4fdc5\n[  272.030312] Tainted: [S]=CPU_OUT_OF_SPEC\n[  272.034233] Hardware name: HP Berknip/Berknip, BIOS Google_Berknip.13434.356.0 05/17/2021\n[  272.042400] RIP: 0010:ec_i2c_probe+0x2b/0x1c0 [i2c_cros_ec_tunnel]\n[  272.048577] Code: 1f 44 00 00 41 57 41 56 41 55 41 54 53 48 83 ec 10 65 48 8b 05 06 a0 6c e7 48 89 44 24 08 4c 8d 7f 10 48 8b 47 50 4c 8b 60 78 \u003c49\u003e 83 7c 24 58 00 0f 84 2f 01 00 00 48 89 fb be 30 06 00 00 4c 9\n[  272.067317] RSP: 0018:ffffa32082a03940 EFLAGS: 00010282\n[  272.072541] RAX: ffff969580b6a810 RBX: ffff969580b68c10 RCX: 0000000000000000\n[  272.079672] RDX: 0000000000000000 RSI: 0000000000000282 RDI: ffff969580b68c00\n[  272.086804] RBP: 00000000fffffdfb R08: 0000000000000000 R09: 0000000000000000\n[  272.093936] R10: 0000000000000000 R11: ffffffffc0600000 R12: 0000000000000000\n[  272.101067] R13: ffffffffa666fbb8 R14: ffffffffc05b5528 R15: ffff969580b68c10\n[  272.108198] FS:  00007b930906fc40(0000) GS:ffff969603149000(0000) knlGS:0000000000000000\n[  272.116282] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[  272.122024] CR2: 0000000000000058 CR3: 000000012631c000 CR4: 00000000003506f0\n[  272.129155] Call Trace:\n[  272.131606]  \u003cTASK\u003e\n[  272.133709]  ? acpi_dev_pm_attach+0xdd/0x110\n[  272.137985]  platform_probe+0x69/0xa0\n[  272.141652]  really_probe+0x152/0x310\n[  272.145318]  __driver_probe_device+0x77/0x110\n[  272.149678]  driver_probe_device+0x1e/0x190\n[  272.153864]  __driver_attach+0x10b/0x1e0\n[  272.157790]  ? driver_attach+0x20/0x20\n[  272.161542]  bus_for_each_dev+0x107/0x150\n[  272.165553]  bus_add_driver+0x15d/0x270\n[  272.169392]  driver_register+0x65/0x110\n[  272.173232]  ? cleanup_module+0xa80/0xa80 [i2c_cros_ec_tunnel 3a00532f3f4af4a9eade753f86b0f8dd4e4e5698]\n[  272.182617]  do_one_initcall+0x110/0x350\n[  272.186543]  ? security_kernfs_init_security+0x49/0xd0\n[  272.191682]  ? __kernfs_new_node+0x1b9/0x240\n[  272.195954]  ? security_kernfs_init_security+0x49/0xd0\n[  272.201093]  ? __kernfs_new_node+0x1b9/0x240\n[  272.205365]  ? kernfs_link_sibling+0x105/0x130\n[  272.209810]  ? kernfs_next_descendant_post+0x1c/0xa0\n[  272.214773]  ? kernfs_activate+0x57/0x70\n[  272.218699]  ? kernfs_add_one+0x118/0x160\n[  272.222710]  ? __kernfs_create_file+0x71/0xa0\n[  272.227069]  ? sysfs_add_bin_file_mode_ns+0xd6/0x110\n[  272.232033]  ? internal_create_group+0x453/0x4a0\n[  272.236651]  ? __vunmap_range_noflush+0x214/0x2d0\n[  272.241355]  ? __free_frozen_pages+0x1dc/0x420\n[  272.245799]  ? free_vmap_area_noflush+0x10a/0x1c0\n[  272.250505]  ? load_module+0x1509/0x16f0\n[  272.254431]  do_init_module+0x60/0x230\n[  272.258181]  __se_sys_finit_module+0x27a/0x370\n[  272.262627]  do_syscall_64+0x6a/0xf0\n[  272.266206]  ? do_syscall_64+0x76/0xf0\n[  272.269956]  ? irqentry_exit_to_user_mode+0x79/0x90\n[  272.274836]  entry_SYSCALL_64_after_hwframe+0x55/0x5d\n[  272.279887] RIP: 0033:0x7b9309168d39\n[  272.283466] Code: 5b 41 5c 5d c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 \u003c48\u003e 3d 01 f0 ff ff 73 01 c3 48 8b 0d af 40 0c 00 f7 d8 64 89 01 8\n[  272.302210] RSP: 002b:00007fff50f1a288 EFLAGS: 00000246 ORIG_RAX: 000\n---truncated---"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T21:15:02.965Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/092de5ac8cb2eaa9593a765fa92ba39d8173f984"
        },
        {
          "url": "https://git.kernel.org/stable/c/b66d4910a608427367c4e21499e149f085782df7"
        },
        {
          "url": "https://git.kernel.org/stable/c/cd83035b6f2a102c2d5acd3bfb2a11ff967aaba6"
        },
        {
          "url": "https://git.kernel.org/stable/c/3090cad5ccff8963b95160f4060068048a1e4c4c"
        },
        {
          "url": "https://git.kernel.org/stable/c/e89bf1311d4497c6743f3021e9c481b16c3a41c9"
        },
        {
          "url": "https://git.kernel.org/stable/c/1355b5ca4782be85a2ef7275e4c508f770d0fb27"
        },
        {
          "url": "https://git.kernel.org/stable/c/da8edc9eb2516aface7f86be5fa6d09c0d07b9f8"
        },
        {
          "url": "https://git.kernel.org/stable/c/424eafe65647a8d6c690284536e711977153195a"
        }
      ],
      "title": "i2c: cros-ec-tunnel: defer probe if parent EC is not present",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-37781",
    "datePublished": "2025-05-01T13:07:18.390Z",
    "dateReserved": "2025-04-16T04:51:23.940Z",
    "dateUpdated": "2026-05-11T21:15:02.965Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2025-37781",
      "date": "2026-09-19",
      "epss": "0.002",
      "percentile": "0.10245"
    },
    "microsoft_vex": {
      "current_release_date": "2026-02-18T02:19:07.000Z",
      "cve": "CVE-2025-37781",
      "id": "msrc_CVE-2025-37781",
      "initial_release_date": "2025-05-02T00:00:00.000Z",
      "product_status:fixed": "2",
      "product_status:known_affected": "2",
      "source": "Microsoft CSAF VEX",
      "status": "final",
      "title": "i2c: cros-ec-tunnel: defer probe if parent EC is not present",
      "url": "https://msrc.microsoft.com/csaf/vex/2025/msrc_cve-2025-37781.json",
      "version": "2"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
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                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
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                    "version": "3.16"
                  },
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                    "lessThan": "3.16",
                    "status": "unaffected",
                    "version": "0",
                    "versionType": "semver"
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                    "status": "unaffected",
                    "version": "5.4.293",
                    "versionType": "semver"
                  },
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                    "lessThanOrEqual": "5.10.*",
                    "status": "unaffected",
                    "version": "5.10.237",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "5.15.*",
                    "status": "unaffected",
                    "version": "5.15.181",
                    "versionType": "semver"
                  },
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                    "lessThanOrEqual": "6.1.*",
                    "status": "unaffected",
                    "version": "6.1.135",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.6.*",
                    "status": "unaffected",
                    "version": "6.6.88",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.12.*",
                    "status": "unaffected",
                    "version": "6.12.25",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.14.*",
                    "status": "unaffected",
                    "version": "6.14.4",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "*",
                    "status": "unaffected",
                    "version": "6.15",
                    "versionType": "original_commit_for_fix"
                  }
                ]
              }
            ],
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
          }
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        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ni2c: cros-ec-tunnel: defer probe if parent EC is not present\n\nWhen i2c-cros-ec-tunnel and the EC driver are built-in, the EC parent\ndevice will not be found, leading to NULL pointer dereference.\n\nThat can also be reproduced by unbinding the controller driver and then\nloading i2c-cros-ec-tunnel module (or binding the device).\n\n[  271.991245] BUG: kernel NULL pointer dereference, address: 0000000000000058\n[  271.998215] #PF: supervisor read access in kernel mode\n[  272.003351] #PF: error_code(0x0000) - not-present page\n[  272.008485] PGD 0 P4D 0\n[  272.011022] Oops: Oops: 0000 [#1] SMP NOPTI\n[  272.015207] CPU: 0 UID: 0 PID: 3859 Comm: insmod Tainted: G S                  6.15.0-rc1-00004-g44722359ed83 #30 PREEMPT(full)  3c7fb39a552e7d949de2ad921a7d6588d3a4fdc5\n[  272.030312] Tainted: [S]=CPU_OUT_OF_SPEC\n[  272.034233] Hardware name: HP Berknip/Berknip, BIOS Google_Berknip.13434.356.0 05/17/2021\n[  272.042400] RIP: 0010:ec_i2c_probe+0x2b/0x1c0 [i2c_cros_ec_tunnel]\n[  272.048577] Code: 1f 44 00 00 41 57 41 56 41 55 41 54 53 48 83 ec 10 65 48 8b 05 06 a0 6c e7 48 89 44 24 08 4c 8d 7f 10 48 8b 47 50 4c 8b 60 78 \u003c49\u003e 83 7c 24 58 00 0f 84 2f 01 00 00 48 89 fb be 30 06 00 00 4c 9\n[  272.067317] RSP: 0018:ffffa32082a03940 EFLAGS: 00010282\n[  272.072541] RAX: ffff969580b6a810 RBX: ffff969580b68c10 RCX: 0000000000000000\n[  272.079672] RDX: 0000000000000000 RSI: 0000000000000282 RDI: ffff969580b68c00\n[  272.086804] RBP: 00000000fffffdfb R08: 0000000000000000 R09: 0000000000000000\n[  272.093936] R10: 0000000000000000 R11: ffffffffc0600000 R12: 0000000000000000\n[  272.101067] R13: ffffffffa666fbb8 R14: ffffffffc05b5528 R15: ffff969580b68c10\n[  272.108198] FS:  00007b930906fc40(0000) GS:ffff969603149000(0000) knlGS:0000000000000000\n[  272.116282] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[  272.122024] CR2: 0000000000000058 CR3: 000000012631c000 CR4: 00000000003506f0\n[  272.129155] Call Trace:\n[  272.131606]  \u003cTASK\u003e\n[  272.133709]  ? acpi_dev_pm_attach+0xdd/0x110\n[  272.137985]  platform_probe+0x69/0xa0\n[  272.141652]  really_probe+0x152/0x310\n[  272.145318]  __driver_probe_device+0x77/0x110\n[  272.149678]  driver_probe_device+0x1e/0x190\n[  272.153864]  __driver_attach+0x10b/0x1e0\n[  272.157790]  ? driver_attach+0x20/0x20\n[  272.161542]  bus_for_each_dev+0x107/0x150\n[  272.165553]  bus_add_driver+0x15d/0x270\n[  272.169392]  driver_register+0x65/0x110\n[  272.173232]  ? cleanup_module+0xa80/0xa80 [i2c_cros_ec_tunnel 3a00532f3f4af4a9eade753f86b0f8dd4e4e5698]\n[  272.182617]  do_one_initcall+0x110/0x350\n[  272.186543]  ? security_kernfs_init_security+0x49/0xd0\n[  272.191682]  ? __kernfs_new_node+0x1b9/0x240\n[  272.195954]  ? security_kernfs_init_security+0x49/0xd0\n[  272.201093]  ? __kernfs_new_node+0x1b9/0x240\n[  272.205365]  ? kernfs_link_sibling+0x105/0x130\n[  272.209810]  ? kernfs_next_descendant_post+0x1c/0xa0\n[  272.214773]  ? kernfs_activate+0x57/0x70\n[  272.218699]  ? kernfs_add_one+0x118/0x160\n[  272.222710]  ? __kernfs_create_file+0x71/0xa0\n[  272.227069]  ? sysfs_add_bin_file_mode_ns+0xd6/0x110\n[  272.232033]  ? internal_create_group+0x453/0x4a0\n[  272.236651]  ? __vunmap_range_noflush+0x214/0x2d0\n[  272.241355]  ? __free_frozen_pages+0x1dc/0x420\n[  272.245799]  ? free_vmap_area_noflush+0x10a/0x1c0\n[  272.250505]  ? load_module+0x1509/0x16f0\n[  272.254431]  do_init_module+0x60/0x230\n[  272.258181]  __se_sys_finit_module+0x27a/0x370\n[  272.262627]  do_syscall_64+0x6a/0xf0\n[  272.266206]  ? do_syscall_64+0x76/0xf0\n[  272.269956]  ? irqentry_exit_to_user_mode+0x79/0x90\n[  272.274836]  entry_SYSCALL_64_after_hwframe+0x55/0x5d\n[  272.279887] RIP: 0033:0x7b9309168d39\n[  272.283466] Code: 5b 41 5c 5d c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 \u003c48\u003e 3d 01 f0 ff ff 73 01 c3 48 8b 0d af 40 0c 00 f7 d8 64 89 01 8\n[  272.302210] RSP: 002b:00007fff50f1a288 EFLAGS: 00000246 ORIG_RAX: 000\n---truncated---"
          },
          {
            "lang": "es",
            "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: i2c: cros-ec-tunnel: aplazar la sonda si el EC principal no est\u00e1 presente. Cuando i2c-cros-ec-tunnel y el controlador EC est\u00e1n integrados, no se encuentra el dispositivo principal EC, lo que provoca una desreferencia de puntero nulo. Esto tambi\u00e9n se puede reproducir desvinculando el controlador y cargando el m\u00f3dulo i2c-cros-ec-tunnel (o vinculando el dispositivo). [ 271.991245] ERROR: desreferencia de puntero NULL del n\u00facleo, direcci\u00f3n: 0000000000000058 [ 271.998215] #PF: acceso de lectura del supervisor en modo n\u00facleo [ 272.003351] #PF: error_code(0x0000) - p\u00e1gina no presente [ 272.008485] PGD 0 P4D 0 [ 272.011022] Oops: Oops: 0000 [#1] SMP NOPTI [ 272.015207] CPU: 0 UID: 0 PID: 3859 Comm: insmod Tainted: G S 6.15.0-rc1-00004-g44722359ed83 #30 PREEMPT(full) 3c7fb39a552e7d949de2ad921a7d6588d3a4fdc5 [ 272.030312] Tainted: [S]=CPU_OUT_OF_SPEC [ 272.034233] Hardware name: HP Berknip/Berknip, BIOS Google_Berknip.13434.356.0 05/17/2021 [ 272.042400] RIP: 0010:ec_i2c_probe+0x2b/0x1c0 [i2c_cros_ec_tunnel] [ 272.048577] Code: 1f 44 00 00 41 57 41 56 41 55 41 54 53 48 83 ec 10 65 48 8b 05 06 a0 6c e7 48 89 44 24 08 4c 8d 7f 10 48 8b 47 50 4c 8b 60 78 \u0026lt;49\u0026gt; 83 7c 24 58 00 0f 84 2f 01 00 00 48 89 fb be 30 06 00 00 4c 9 [ 272.067317] RSP: 0018:ffffa32082a03940 EFLAGS: 00010282 [ 272.072541] RAX: ffff969580b6a810 RBX: ffff969580b68c10 RCX: 0000000000000000 [ 272.079672] RDX: 0000000000000000 RSI: 0000000000000282 RDI: ffff969580b68c00 [ 272.086804] RBP: 00000000fffffdfb R08: 0000000000000000 R09: 0000000000000000 [ 272.093936] R10: 0000000000000000 R11: ffffffffc0600000 R12: 0000000000000000 [ 272.101067] R13: ffffffffa666fbb8 R14: ffffffffc05b5528 R15: ffff969580b68c10 [ 272.108198] FS: 00007b930906fc40(0000) GS:ffff969603149000(0000) knlGS:0000000000000000 [ 272.116282] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 272.122024] CR2: 0000000000000058 CR3: 000000012631c000 CR4: 00000000003506f0 [ 272.129155] Call Trace: [ 272.131606]  [ 272.133709] ? acpi_dev_pm_attach+0xdd/0x110 [ 272.137985] platform_probe+0x69/0xa0 [ 272.141652] really_probe+0x152/0x310 [ 272.145318] __driver_probe_device+0x77/0x110 [ 272.149678] driver_probe_device+0x1e/0x190 [ 272.153864] __driver_attach+0x10b/0x1e0 [ 272.157790] ? driver_attach+0x20/0x20 [ 272.161542] bus_for_each_dev+0x107/0x150 [ 272.165553] bus_add_driver+0x15d/0x270 [ 272.169392] driver_register+0x65/0x110 [ 272.173232] ? cleanup_module+0xa80/0xa80 [i2c_cros_ec_tunnel 3a00532f3f4af4a9eade753f86b0f8dd4e4e5698] [ 272.182617] do_one_initcall+0x110/0x350 [ 272.186543] ? security_kernfs_init_security+0x49/0xd0 [ 272.191682] ? __kernfs_new_node+0x1b9/0x240 [ 272.195954] ? security_kernfs_init_security+0x49/0xd0 [ 272.201093] ? __kernfs_new_node+0x1b9/0x240 [ 272.205365] ? kernfs_link_sibling+0x105/0x130 [ 272.209810] ? kernfs_next_descendant_post+0x1c/0xa0 [ 272.214773] ? kernfs_activate+0x57/0x70 [ 272.218699] ? kernfs_add_one+0x118/0x160 [ 272.222710] ? __kernfs_create_file+0x71/0xa0 [ 272.227069] ? sysfs_add_bin_file_mode_ns+0xd6/0x110 [ 272.232033] ? internal_create_group+0x453/0x4a0 [ 272.236651] ? __vunmap_range_noflush+0x214/0x2d0 [ 272.241355] ? __free_frozen_pages+0x1dc/0x420 [ 272.245799] ? free_vmap_area_noflush+0x10a/0x1c0 [ 272.250505] ? load_module+0x1509/0x16f0 [ 272.254431] do_init_module+0x60/0x230 [ 272.258181] __se_sys_finit_module+0x27a/0x370 [ 272.262627] do_syscall_64+0x6a/0xf0 [ 272.266206] ? do_syscall_64+0x76/0xf0 [ 272.269956] ? irqentry_exit_to_user_mode+0x79/0x90 [ 272.274836] entry_SYSCALL_64_after_hwframe+0x55/0x5d [ 272.279887] RIP: 0033:0x7b9309168d39 [ 272.283466] Code: 5b 41 5c 5d c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 \u0026lt;48\u0026gt; 3d 01 f0 ff ff 73 01 c3 48 8b 0d af 40 0c 00 f7 d8 64 89 01 8 [ 272.302210] RSP: 002b:00007fff50f1a288 EFLAGS: 00000246 ORIG_RAX: 000 ---truncado---"
          }
        ],
        "id": "CVE-2025-37781",
        "lastModified": "2026-06-17T09:15:25.720",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 5.5,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 1.8,
              "impactScore": 3.6,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ]
        },
        "published": "2025-05-01T14:15:42.020",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/092de5ac8cb2eaa9593a765fa92ba39d8173f984"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/1355b5ca4782be85a2ef7275e4c508f770d0fb27"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/3090cad5ccff8963b95160f4060068048a1e4c4c"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/424eafe65647a8d6c690284536e711977153195a"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/b66d4910a608427367c4e21499e149f085782df7"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/cd83035b6f2a102c2d5acd3bfb2a11ff967aaba6"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/da8edc9eb2516aface7f86be5fa6d09c0d07b9f8"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/e89bf1311d4497c6743f3021e9c481b16c3a41c9"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Mailing List",
              "Third Party Advisory"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Mailing List",
              "Third Party Advisory"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Analyzed",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-476"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "None",
      "current_release_date": "2026-06-30T10:19:15+00:00",
      "cve": "CVE-2025-37781",
      "id": "CVE-2025-37781",
      "initial_release_date": "2025-05-01T00:00:00+00:00",
      "product_status:known_not_affected": "274",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: i2c: cros-ec-tunnel: defer probe if parent EC is not present",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-37781.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-02T01:18:09Z",
      "cve": "CVE-2025-37781",
      "id": "CVE-2025-37781",
      "initial_release_date": "2025-05-02T02:02:28Z",
      "product_status:known_affected": "731",
      "product_status:known_not_affected": "49",
      "product_status:recommended": "433",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2025-37781",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2025-37781.json",
      "version": "46"
    }
  }
}



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Tags
Taxonomy of the tags.





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.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.