CVE-2024-26867 (GCVE-0-2024-26867)
Vulnerability from cvelistv5
Published
2024-04-17 10:27
Modified
2025-05-04 08:58
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: comedi: comedi_8255: Correct error in subdevice initialization The refactoring done in commit 5c57b1ccecc7 ("comedi: comedi_8255: Rework subdevice initialization functions") to the initialization of the io field of struct subdev_8255_private broke all cards using the drivers/comedi/drivers/comedi_8255.c module. Prior to 5c57b1ccecc7, __subdev_8255_init() initialized the io field in the newly allocated struct subdev_8255_private to the non-NULL callback given to the function, otherwise it used a flag parameter to select between subdev_8255_mmio and subdev_8255_io. The refactoring removed that logic and the flag, as subdev_8255_mm_init() and subdev_8255_io_init() now explicitly pass subdev_8255_mmio and subdev_8255_io respectively to __subdev_8255_init(), only __subdev_8255_init() never sets spriv->io to the supplied callback. That spriv->io is NULL leads to a later BUG: BUG: kernel NULL pointer dereference, address: 0000000000000000 PGD 0 P4D 0 Oops: 0010 [#1] SMP PTI CPU: 1 PID: 1210 Comm: systemd-udevd Not tainted 6.7.3-x86_64 #1 Hardware name: XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX RIP: 0010:0x0 Code: Unable to access opcode bytes at 0xffffffffffffffd6. RSP: 0018:ffffa3f1c02d7b78 EFLAGS: 00010202 RAX: 0000000000000000 RBX: ffff91f847aefd00 RCX: 000000000000009b RDX: 0000000000000003 RSI: 0000000000000001 RDI: ffff91f840f6fc00 RBP: ffff91f840f6fc00 R08: 0000000000000000 R09: 0000000000000001 R10: 0000000000000000 R11: 000000000000005f R12: 0000000000000000 R13: 0000000000000000 R14: ffffffffc0102498 R15: ffff91f847ce6ba8 FS: 00007f72f4e8f500(0000) GS:ffff91f8d5c80000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffffffffd6 CR3: 000000010540e000 CR4: 00000000000406f0 Call Trace: <TASK> ? __die_body+0x15/0x57 ? page_fault_oops+0x2ef/0x33c ? insert_vmap_area.constprop.0+0xb6/0xd5 ? alloc_vmap_area+0x529/0x5ee ? exc_page_fault+0x15a/0x489 ? asm_exc_page_fault+0x22/0x30 __subdev_8255_init+0x79/0x8d [comedi_8255] pci_8255_auto_attach+0x11a/0x139 [8255_pci] comedi_auto_config+0xac/0x117 [comedi] ? __pfx___driver_attach+0x10/0x10 pci_device_probe+0x88/0xf9 really_probe+0x101/0x248 __driver_probe_device+0xbb/0xed driver_probe_device+0x1a/0x72 __driver_attach+0xd4/0xed bus_for_each_dev+0x76/0xb8 bus_add_driver+0xbe/0x1be driver_register+0x9a/0xd8 comedi_pci_driver_register+0x28/0x48 [comedi_pci] ? __pfx_pci_8255_driver_init+0x10/0x10 [8255_pci] do_one_initcall+0x72/0x183 do_init_module+0x5b/0x1e8 init_module_from_file+0x86/0xac __do_sys_finit_module+0x151/0x218 do_syscall_64+0x72/0xdb entry_SYSCALL_64_after_hwframe+0x6e/0x76 RIP: 0033:0x7f72f50a0cb9 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 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 47 71 0c 00 f7 d8 64 89 01 48 RSP: 002b:00007ffd47e512d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139 RAX: ffffffffffffffda RBX: 0000562dd06ae070 RCX: 00007f72f50a0cb9 RDX: 0000000000000000 RSI: 00007f72f52d32df RDI: 000000000000000e RBP: 0000000000000000 R08: 00007f72f5168b20 R09: 0000000000000000 R10: 0000000000000050 R11: 0000000000000246 R12: 00007f72f52d32df R13: 0000000000020000 R14: 0000562dd06785c0 R15: 0000562dcfd0e9a8 </TASK> Modules linked in: 8255_pci(+) comedi_8255 comedi_pci comedi intel_gtt e100(+) acpi_cpufreq rtc_cmos usbhid CR2: 0000000000000000 ---[ end trace 0000000000000000 ]--- RIP: 0010:0x0 Code: Unable to access opcode bytes at 0xffffffffffffffd6. RSP: 0018:ffffa3f1c02d7b78 EFLAGS: 00010202 RAX: 0000000000000000 RBX: ffff91f847aefd00 RCX: 000000000000009b RDX: 0000000000000003 RSI: 0000000000000001 RDI: ffff91f840f6fc00 RBP: ffff91f840f6fc00 R08: 0000000000000000 R09: 0000000000000001 R10: 0000000000000000 R11: 000000000000005f R12: 0000000000000000 R13: 0000000000000000 R14: ffffffffc0102498 R15: ffff91f847ce6ba8 FS: ---truncated---
References
Impacted products
Vendor Product Version
Linux Linux Version: 5c57b1ccecc72738d4b9be2dfcdfb9001be76bd7
Version: 5c57b1ccecc72738d4b9be2dfcdfb9001be76bd7
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{
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              "content": {
                "id": "CVE-2024-26867",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-06-17T17:41:27.783893Z",
                "version": "2.0.3"
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              "type": "ssvc"
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          "dateUpdated": "2024-06-17T17:48:10.615Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
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        "title": "CISA ADP Vulnrichment"
      },
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          "dateUpdated": "2024-08-02T00:21:04.180Z",
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            "url": "https://git.kernel.org/stable/c/cfa9ba1ae0bef0681833a22d326174fe633caab5"
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        "title": "CVE Program Container"
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    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/comedi/drivers/comedi_8255.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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          "product": "Linux",
          "programFiles": [
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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": "6.7"
            },
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              "version": "0",
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              "version": "6.7.11",
              "versionType": "semver"
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              "status": "unaffected",
              "version": "6.8",
              "versionType": "original_commit_for_fix"
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                  "versionEndExcluding": "6.7.11",
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncomedi: comedi_8255: Correct error in subdevice initialization\n\nThe refactoring done in commit 5c57b1ccecc7 (\"comedi: comedi_8255: Rework\nsubdevice initialization functions\") to the initialization of the io\nfield of struct subdev_8255_private broke all cards using the\ndrivers/comedi/drivers/comedi_8255.c module.\n\nPrior to 5c57b1ccecc7, __subdev_8255_init() initialized the io field\nin the newly allocated struct subdev_8255_private to the non-NULL\ncallback given to the function, otherwise it used a flag parameter to\nselect between subdev_8255_mmio and subdev_8255_io. The refactoring\nremoved that logic and the flag, as subdev_8255_mm_init() and\nsubdev_8255_io_init() now explicitly pass subdev_8255_mmio and\nsubdev_8255_io respectively to __subdev_8255_init(), only\n__subdev_8255_init() never sets spriv-\u003eio to the supplied\ncallback. That spriv-\u003eio is NULL leads to a later BUG:\n\nBUG: kernel NULL pointer dereference, address: 0000000000000000\nPGD 0 P4D 0\nOops: 0010 [#1] SMP PTI\nCPU: 1 PID: 1210 Comm: systemd-udevd Not tainted 6.7.3-x86_64 #1\nHardware name: XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX\nRIP: 0010:0x0\nCode: Unable to access opcode bytes at 0xffffffffffffffd6.\nRSP: 0018:ffffa3f1c02d7b78 EFLAGS: 00010202\nRAX: 0000000000000000 RBX: ffff91f847aefd00 RCX: 000000000000009b\nRDX: 0000000000000003 RSI: 0000000000000001 RDI: ffff91f840f6fc00\nRBP: ffff91f840f6fc00 R08: 0000000000000000 R09: 0000000000000001\nR10: 0000000000000000 R11: 000000000000005f R12: 0000000000000000\nR13: 0000000000000000 R14: ffffffffc0102498 R15: ffff91f847ce6ba8\nFS:  00007f72f4e8f500(0000) GS:ffff91f8d5c80000(0000) knlGS:0000000000000000\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: ffffffffffffffd6 CR3: 000000010540e000 CR4: 00000000000406f0\nCall Trace:\n \u003cTASK\u003e\n ? __die_body+0x15/0x57\n ? page_fault_oops+0x2ef/0x33c\n ? insert_vmap_area.constprop.0+0xb6/0xd5\n ? alloc_vmap_area+0x529/0x5ee\n ? exc_page_fault+0x15a/0x489\n ? asm_exc_page_fault+0x22/0x30\n __subdev_8255_init+0x79/0x8d [comedi_8255]\n pci_8255_auto_attach+0x11a/0x139 [8255_pci]\n comedi_auto_config+0xac/0x117 [comedi]\n ? __pfx___driver_attach+0x10/0x10\n pci_device_probe+0x88/0xf9\n really_probe+0x101/0x248\n __driver_probe_device+0xbb/0xed\n driver_probe_device+0x1a/0x72\n __driver_attach+0xd4/0xed\n bus_for_each_dev+0x76/0xb8\n bus_add_driver+0xbe/0x1be\n driver_register+0x9a/0xd8\n comedi_pci_driver_register+0x28/0x48 [comedi_pci]\n ? __pfx_pci_8255_driver_init+0x10/0x10 [8255_pci]\n do_one_initcall+0x72/0x183\n do_init_module+0x5b/0x1e8\n init_module_from_file+0x86/0xac\n __do_sys_finit_module+0x151/0x218\n do_syscall_64+0x72/0xdb\n entry_SYSCALL_64_after_hwframe+0x6e/0x76\nRIP: 0033:0x7f72f50a0cb9\nCode: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 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 47 71 0c 00 f7 d8 64 89 01 48\nRSP: 002b:00007ffd47e512d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139\nRAX: ffffffffffffffda RBX: 0000562dd06ae070 RCX: 00007f72f50a0cb9\nRDX: 0000000000000000 RSI: 00007f72f52d32df RDI: 000000000000000e\nRBP: 0000000000000000 R08: 00007f72f5168b20 R09: 0000000000000000\nR10: 0000000000000050 R11: 0000000000000246 R12: 00007f72f52d32df\nR13: 0000000000020000 R14: 0000562dd06785c0 R15: 0000562dcfd0e9a8\n \u003c/TASK\u003e\nModules linked in: 8255_pci(+) comedi_8255 comedi_pci comedi intel_gtt e100(+) acpi_cpufreq rtc_cmos usbhid\nCR2: 0000000000000000\n---[ end trace 0000000000000000 ]---\nRIP: 0010:0x0\nCode: Unable to access opcode bytes at 0xffffffffffffffd6.\nRSP: 0018:ffffa3f1c02d7b78 EFLAGS: 00010202\nRAX: 0000000000000000 RBX: ffff91f847aefd00 RCX: 000000000000009b\nRDX: 0000000000000003 RSI: 0000000000000001 RDI: ffff91f840f6fc00\nRBP: ffff91f840f6fc00 R08: 0000000000000000 R09: 0000000000000001\nR10: 0000000000000000 R11: 000000000000005f R12: 0000000000000000\nR13: 0000000000000000 R14: ffffffffc0102498 R15: ffff91f847ce6ba8\nFS: \n---truncated---"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-04T08:58:25.744Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
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          "url": "https://git.kernel.org/stable/c/4a825457a45d8debc46ab8cba57d47462411710d"
        },
        {
          "url": "https://git.kernel.org/stable/c/cfa9ba1ae0bef0681833a22d326174fe633caab5"
        }
      ],
      "title": "comedi: comedi_8255: Correct error in subdevice initialization",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-26867",
    "datePublished": "2024-04-17T10:27:28.795Z",
    "dateReserved": "2024-02-19T14:20:24.184Z",
    "dateUpdated": "2025-05-04T08:58:25.744Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2024-26867\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-04-17T11:15:09.303\",\"lastModified\":\"2024-11-21T09:03:15.117\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\ncomedi: comedi_8255: Correct error in subdevice initialization\\n\\nThe refactoring done in commit 5c57b1ccecc7 (\\\"comedi: comedi_8255: Rework\\nsubdevice initialization functions\\\") to the initialization of the io\\nfield of struct subdev_8255_private broke all cards using the\\ndrivers/comedi/drivers/comedi_8255.c module.\\n\\nPrior to 5c57b1ccecc7, __subdev_8255_init() initialized the io field\\nin the newly allocated struct subdev_8255_private to the non-NULL\\ncallback given to the function, otherwise it used a flag parameter to\\nselect between subdev_8255_mmio and subdev_8255_io. The refactoring\\nremoved that logic and the flag, as subdev_8255_mm_init() and\\nsubdev_8255_io_init() now explicitly pass subdev_8255_mmio and\\nsubdev_8255_io respectively to __subdev_8255_init(), only\\n__subdev_8255_init() never sets spriv-\u003eio to the supplied\\ncallback. That spriv-\u003eio is NULL leads to a later BUG:\\n\\nBUG: kernel NULL pointer dereference, address: 0000000000000000\\nPGD 0 P4D 0\\nOops: 0010 [#1] SMP PTI\\nCPU: 1 PID: 1210 Comm: systemd-udevd Not tainted 6.7.3-x86_64 #1\\nHardware name: XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX\\nRIP: 0010:0x0\\nCode: Unable to access opcode bytes at 0xffffffffffffffd6.\\nRSP: 0018:ffffa3f1c02d7b78 EFLAGS: 00010202\\nRAX: 0000000000000000 RBX: ffff91f847aefd00 RCX: 000000000000009b\\nRDX: 0000000000000003 RSI: 0000000000000001 RDI: ffff91f840f6fc00\\nRBP: ffff91f840f6fc00 R08: 0000000000000000 R09: 0000000000000001\\nR10: 0000000000000000 R11: 000000000000005f R12: 0000000000000000\\nR13: 0000000000000000 R14: ffffffffc0102498 R15: ffff91f847ce6ba8\\nFS:  00007f72f4e8f500(0000) GS:ffff91f8d5c80000(0000) knlGS:0000000000000000\\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\\nCR2: ffffffffffffffd6 CR3: 000000010540e000 CR4: 00000000000406f0\\nCall Trace:\\n \u003cTASK\u003e\\n ? __die_body+0x15/0x57\\n ? page_fault_oops+0x2ef/0x33c\\n ? insert_vmap_area.constprop.0+0xb6/0xd5\\n ? alloc_vmap_area+0x529/0x5ee\\n ? exc_page_fault+0x15a/0x489\\n ? asm_exc_page_fault+0x22/0x30\\n __subdev_8255_init+0x79/0x8d [comedi_8255]\\n pci_8255_auto_attach+0x11a/0x139 [8255_pci]\\n comedi_auto_config+0xac/0x117 [comedi]\\n ? __pfx___driver_attach+0x10/0x10\\n pci_device_probe+0x88/0xf9\\n really_probe+0x101/0x248\\n __driver_probe_device+0xbb/0xed\\n driver_probe_device+0x1a/0x72\\n __driver_attach+0xd4/0xed\\n bus_for_each_dev+0x76/0xb8\\n bus_add_driver+0xbe/0x1be\\n driver_register+0x9a/0xd8\\n comedi_pci_driver_register+0x28/0x48 [comedi_pci]\\n ? __pfx_pci_8255_driver_init+0x10/0x10 [8255_pci]\\n do_one_initcall+0x72/0x183\\n do_init_module+0x5b/0x1e8\\n init_module_from_file+0x86/0xac\\n __do_sys_finit_module+0x151/0x218\\n do_syscall_64+0x72/0xdb\\n entry_SYSCALL_64_after_hwframe+0x6e/0x76\\nRIP: 0033:0x7f72f50a0cb9\\nCode: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 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 47 71 0c 00 f7 d8 64 89 01 48\\nRSP: 002b:00007ffd47e512d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139\\nRAX: ffffffffffffffda RBX: 0000562dd06ae070 RCX: 00007f72f50a0cb9\\nRDX: 0000000000000000 RSI: 00007f72f52d32df RDI: 000000000000000e\\nRBP: 0000000000000000 R08: 00007f72f5168b20 R09: 0000000000000000\\nR10: 0000000000000050 R11: 0000000000000246 R12: 00007f72f52d32df\\nR13: 0000000000020000 R14: 0000562dd06785c0 R15: 0000562dcfd0e9a8\\n \u003c/TASK\u003e\\nModules linked in: 8255_pci(+) comedi_8255 comedi_pci comedi intel_gtt e100(+) acpi_cpufreq rtc_cmos usbhid\\nCR2: 0000000000000000\\n---[ end trace 0000000000000000 ]---\\nRIP: 0010:0x0\\nCode: Unable to access opcode bytes at 0xffffffffffffffd6.\\nRSP: 0018:ffffa3f1c02d7b78 EFLAGS: 00010202\\nRAX: 0000000000000000 RBX: ffff91f847aefd00 RCX: 000000000000009b\\nRDX: 0000000000000003 RSI: 0000000000000001 RDI: ffff91f840f6fc00\\nRBP: ffff91f840f6fc00 R08: 0000000000000000 R09: 0000000000000001\\nR10: 0000000000000000 R11: 000000000000005f R12: 0000000000000000\\nR13: 0000000000000000 R14: ffffffffc0102498 R15: ffff91f847ce6ba8\\nFS: \\n---truncated---\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux se ha resuelto la siguiente vulnerabilidad: comedi: comedi_8255: Corregir error en la inicializaci\u00f3n del subdispositivo La refactorizaci\u00f3n realizada en el commit 5c57b1ccecc7 (\\\"comedi: comedi_8255: Rework subdevice inicializationfunctions\\\") a la inicializaci\u00f3n del campo io de la estructura subdev_8255_private se rompi\u00f3 todas las tarjetas que utilizan el m\u00f3dulo drivers/comedi/drivers/comedi_8255.c. Antes de 5c57b1ccecc7, __subdev_8255_init() inicializaba el campo io en la estructura subdev_8255_private reci\u00e9n asignada a la devoluci\u00f3n de llamada no NULL proporcionada a la funci\u00f3n; de lo contrario, usaba un par\u00e1metro de marca para seleccionar entre subdev_8255_mmio y subdev_8255_io. La refactorizaci\u00f3n elimin\u00f3 esa l\u00f3gica y la bandera, ya que subdev_8255_mm_init() y subdev_8255_io_init() ahora pasan expl\u00edcitamente subdev_8255_mmio y subdev_8255_io respectivamente a __subdev_8255_init(), solo __subdev_8255_init() nunca establece spriv-\u0026gt;io en la devoluci\u00f3n de llamada proporcionada. Que spriv-\u0026gt;io sea NULL conduce a un ERROR posterior: ERROR: desreferencia del puntero NULL del n\u00facleo, direcci\u00f3n: 0000000000000000 PGD 0 P4D 0 Ups: 0010 [#1] SMP PTI CPU: 1 PID: 1210 Comm: systemd-udevd No contaminado 6.7 .3-x86_64 #1 Nombre de hardware: XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX RIP: 0010:0x0 C\u00f3digo: No se puede acceder a los bytes del c\u00f3digo de operaci\u00f3n en 0xffffffffffffffd6. RSP: 0018: FFFFA3F1C02D7B78 EFLAGS: 00010202 RAX: 000000000000000000 RBX: FFFF91F847AEFD00 RCX: 00000000000000009B RDX: 00000000000003 RSI: 00000000000001 RDI: FFF91F840F6FC00 R08: 000000000000000000 R09: 000000000000000001 R10: 000000000000000000 R11: 000000000000005F R12: 0000000000000000000000000000: 0000000000000000 RUBI R15: ffff91f847ce6ba8 FS: 00007f72f4e8f500(0000) GS:ffff91f8d5c80000(0000) knlGS:00000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050 033 CR2: ffffffffffffffd6 CR3: 000000010540e000 CR4: 00000000000406f0 Seguimiento de llamadas:  ? __die_body+0x15/0x57 ? page_fault_oops+0x2ef/0x33c? insert_vmap_area.constprop.0+0xb6/0xd5? alloc_vmap_area+0x529/0x5ee? exc_page_fault+0x15a/0x489? asm_exc_page_fault+0x22/0x30 __subdev_8255_init+0x79/0x8d [comedi_8255] pci_8255_auto_attach+0x11a/0x139 [8255_pci] comedi_auto_config+0xac/0x117 [comedi] ? __pfx___driver_attach+0x10/0x10 pci_device_probe+0x88/0xf9 very_probe+0x101/0x248 __driver_probe_device+0xbb/0xed driver_probe_device+0x1a/0x72 __driver_attach+0xd4/0xed bus_for_each_dev+0x76/0xb 8 bus_add_driver+0xbe/0x1be driver_register+0x9a/0xd8 comedi_pci_driver_register+0x28/0x48 [comedia_pci] ? __pfx_pci_8255_driver_init+0x10/0x10 [8255_pci] do_one_initcall+0x72/0x183 do_init_module+0x5b/0x1e8 init_module_from_file+0x86/0xac __do_sys_finit_module+0x151/0x218 do_syscall_ 64+0x72/0xdb Entry_SYSCALL_64_after_hwframe+0x6e/0x76 RIP: 0033:0x7f72f50a0cb9 C\u00f3digo: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 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 47 71 0c 00 f7 d8 64 89 01 48 RSP: 002b:00007ffd47e512d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139 RAX: ffffffffffffffda RBX: X: 00007f72f50a0cb9 RDX: 0000000000000000 RSI: 00007f72f52d32df RDI: 000000000000000e RBP: 00000000000000000 R08: 00007f72f5168b20 0000000000000000 R10 : 0000000000000050 R11: 0000000000000246 R12: 00007f72f52d32df R13: 0000000000020000 R14: 0000562dd06785c0 R15: 0000562dcfd0e9a8 K\u0026gt; M\u00f3dulos vinculados en: 8255_pci(+) comedi_8255 comedi_pci comedi intel_gtt e100(+) acpi_cpufreq rtc_cmos usbhid CR2: 00000000000000000 ---[ end trace 0000000000000000 ]--- RIP: 0010:0x0 C\u00f3digo: No se puede acceder a los bytes del c\u00f3digo de operaci\u00f3n en 0xffffffffffffffd6. RSP: 0018: FFFFA3F1C02D7B78 EFLAGS: 00010202 RAX: 000000000000000000 RBX: FFFF91F847AEFD00 RCX: 00000000000000009B RDX: 00000000000003 RSI: 00000000000001 RDI: FFF91F840F6FC00  ---truncado---\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/4a825457a45d8debc46ab8cba57d47462411710d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/cfa9ba1ae0bef0681833a22d326174fe633caab5\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/4a825457a45d8debc46ab8cba57d47462411710d\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://git.kernel.org/stable/c/cfa9ba1ae0bef0681833a22d326174fe633caab5\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://git.kernel.org/stable/c/4a825457a45d8debc46ab8cba57d47462411710d\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/cfa9ba1ae0bef0681833a22d326174fe633caab5\", \"tags\": [\"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-02T00:21:04.180Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2024-26867\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-06-17T17:41:27.783893Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-06-17T17:41:28.823Z\"}}], \"cna\": {\"title\": \"comedi: comedi_8255: Correct error in subdevice initialization\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"5c57b1ccecc72738d4b9be2dfcdfb9001be76bd7\", \"lessThan\": \"4a825457a45d8debc46ab8cba57d47462411710d\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"5c57b1ccecc72738d4b9be2dfcdfb9001be76bd7\", \"lessThan\": \"cfa9ba1ae0bef0681833a22d326174fe633caab5\", \"versionType\": \"git\"}], \"programFiles\": [\"drivers/comedi/drivers/comedi_8255.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"6.7\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"6.7\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"6.7.11\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.7.*\"}, {\"status\": \"unaffected\", \"version\": \"6.8\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/comedi/drivers/comedi_8255.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/4a825457a45d8debc46ab8cba57d47462411710d\"}, {\"url\": \"https://git.kernel.org/stable/c/cfa9ba1ae0bef0681833a22d326174fe633caab5\"}], \"x_generator\": {\"engine\": \"bippy-5f407fcff5a0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\ncomedi: comedi_8255: Correct error in subdevice initialization\\n\\nThe refactoring done in commit 5c57b1ccecc7 (\\\"comedi: comedi_8255: Rework\\nsubdevice initialization functions\\\") to the initialization of the io\\nfield of struct subdev_8255_private broke all cards using the\\ndrivers/comedi/drivers/comedi_8255.c module.\\n\\nPrior to 5c57b1ccecc7, __subdev_8255_init() initialized the io field\\nin the newly allocated struct subdev_8255_private to the non-NULL\\ncallback given to the function, otherwise it used a flag parameter to\\nselect between subdev_8255_mmio and subdev_8255_io. The refactoring\\nremoved that logic and the flag, as subdev_8255_mm_init() and\\nsubdev_8255_io_init() now explicitly pass subdev_8255_mmio and\\nsubdev_8255_io respectively to __subdev_8255_init(), only\\n__subdev_8255_init() never sets spriv-\u003eio to the supplied\\ncallback. That spriv-\u003eio is NULL leads to a later BUG:\\n\\nBUG: kernel NULL pointer dereference, address: 0000000000000000\\nPGD 0 P4D 0\\nOops: 0010 [#1] SMP PTI\\nCPU: 1 PID: 1210 Comm: systemd-udevd Not tainted 6.7.3-x86_64 #1\\nHardware name: XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX\\nRIP: 0010:0x0\\nCode: Unable to access opcode bytes at 0xffffffffffffffd6.\\nRSP: 0018:ffffa3f1c02d7b78 EFLAGS: 00010202\\nRAX: 0000000000000000 RBX: ffff91f847aefd00 RCX: 000000000000009b\\nRDX: 0000000000000003 RSI: 0000000000000001 RDI: ffff91f840f6fc00\\nRBP: ffff91f840f6fc00 R08: 0000000000000000 R09: 0000000000000001\\nR10: 0000000000000000 R11: 000000000000005f R12: 0000000000000000\\nR13: 0000000000000000 R14: ffffffffc0102498 R15: ffff91f847ce6ba8\\nFS:  00007f72f4e8f500(0000) GS:ffff91f8d5c80000(0000) knlGS:0000000000000000\\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\\nCR2: ffffffffffffffd6 CR3: 000000010540e000 CR4: 00000000000406f0\\nCall Trace:\\n \u003cTASK\u003e\\n ? __die_body+0x15/0x57\\n ? page_fault_oops+0x2ef/0x33c\\n ? insert_vmap_area.constprop.0+0xb6/0xd5\\n ? alloc_vmap_area+0x529/0x5ee\\n ? exc_page_fault+0x15a/0x489\\n ? asm_exc_page_fault+0x22/0x30\\n __subdev_8255_init+0x79/0x8d [comedi_8255]\\n pci_8255_auto_attach+0x11a/0x139 [8255_pci]\\n comedi_auto_config+0xac/0x117 [comedi]\\n ? __pfx___driver_attach+0x10/0x10\\n pci_device_probe+0x88/0xf9\\n really_probe+0x101/0x248\\n __driver_probe_device+0xbb/0xed\\n driver_probe_device+0x1a/0x72\\n __driver_attach+0xd4/0xed\\n bus_for_each_dev+0x76/0xb8\\n bus_add_driver+0xbe/0x1be\\n driver_register+0x9a/0xd8\\n comedi_pci_driver_register+0x28/0x48 [comedi_pci]\\n ? __pfx_pci_8255_driver_init+0x10/0x10 [8255_pci]\\n do_one_initcall+0x72/0x183\\n do_init_module+0x5b/0x1e8\\n init_module_from_file+0x86/0xac\\n __do_sys_finit_module+0x151/0x218\\n do_syscall_64+0x72/0xdb\\n entry_SYSCALL_64_after_hwframe+0x6e/0x76\\nRIP: 0033:0x7f72f50a0cb9\\nCode: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 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 47 71 0c 00 f7 d8 64 89 01 48\\nRSP: 002b:00007ffd47e512d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139\\nRAX: ffffffffffffffda RBX: 0000562dd06ae070 RCX: 00007f72f50a0cb9\\nRDX: 0000000000000000 RSI: 00007f72f52d32df RDI: 000000000000000e\\nRBP: 0000000000000000 R08: 00007f72f5168b20 R09: 0000000000000000\\nR10: 0000000000000050 R11: 0000000000000246 R12: 00007f72f52d32df\\nR13: 0000000000020000 R14: 0000562dd06785c0 R15: 0000562dcfd0e9a8\\n \u003c/TASK\u003e\\nModules linked in: 8255_pci(+) comedi_8255 comedi_pci comedi intel_gtt e100(+) acpi_cpufreq rtc_cmos usbhid\\nCR2: 0000000000000000\\n---[ end trace 0000000000000000 ]---\\nRIP: 0010:0x0\\nCode: Unable to access opcode bytes at 0xffffffffffffffd6.\\nRSP: 0018:ffffa3f1c02d7b78 EFLAGS: 00010202\\nRAX: 0000000000000000 RBX: ffff91f847aefd00 RCX: 000000000000009b\\nRDX: 0000000000000003 RSI: 0000000000000001 RDI: ffff91f840f6fc00\\nRBP: ffff91f840f6fc00 R08: 0000000000000000 R09: 0000000000000001\\nR10: 0000000000000000 R11: 000000000000005f R12: 0000000000000000\\nR13: 0000000000000000 R14: ffffffffc0102498 R15: ffff91f847ce6ba8\\nFS: \\n---truncated---\"}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2024-12-19T08:49:01.732Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-26867\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2024-12-19T08:49:01.732Z\", \"dateReserved\": \"2024-02-19T14:20:24.184Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-04-17T10:27:28.795Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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