CVE-2025-38581 (GCVE-0-2025-38581)
Vulnerability from cvelistv5
Published
2025-08-19 17:03
Modified
2025-08-28 14:43
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: crypto: ccp - Fix crash when rebind ccp device for ccp.ko When CONFIG_CRYPTO_DEV_CCP_DEBUGFS is enabled, rebinding the ccp device causes the following crash: $ echo '0000:0a:00.2' > /sys/bus/pci/drivers/ccp/unbind $ echo '0000:0a:00.2' > /sys/bus/pci/drivers/ccp/bind [ 204.976930] BUG: kernel NULL pointer dereference, address: 0000000000000098 [ 204.978026] #PF: supervisor write access in kernel mode [ 204.979126] #PF: error_code(0x0002) - not-present page [ 204.980226] PGD 0 P4D 0 [ 204.981317] Oops: Oops: 0002 [#1] SMP NOPTI ... [ 204.997852] Call Trace: [ 204.999074] <TASK> [ 205.000297] start_creating+0x9f/0x1c0 [ 205.001533] debugfs_create_dir+0x1f/0x170 [ 205.002769] ? srso_return_thunk+0x5/0x5f [ 205.004000] ccp5_debugfs_setup+0x87/0x170 [ccp] [ 205.005241] ccp5_init+0x8b2/0x960 [ccp] [ 205.006469] ccp_dev_init+0xd4/0x150 [ccp] [ 205.007709] sp_init+0x5f/0x80 [ccp] [ 205.008942] sp_pci_probe+0x283/0x2e0 [ccp] [ 205.010165] ? srso_return_thunk+0x5/0x5f [ 205.011376] local_pci_probe+0x4f/0xb0 [ 205.012584] pci_device_probe+0xdb/0x230 [ 205.013810] really_probe+0xed/0x380 [ 205.015024] __driver_probe_device+0x7e/0x160 [ 205.016240] device_driver_attach+0x2f/0x60 [ 205.017457] bind_store+0x7c/0xb0 [ 205.018663] drv_attr_store+0x28/0x40 [ 205.019868] sysfs_kf_write+0x5f/0x70 [ 205.021065] kernfs_fop_write_iter+0x145/0x1d0 [ 205.022267] vfs_write+0x308/0x440 [ 205.023453] ksys_write+0x6d/0xe0 [ 205.024616] __x64_sys_write+0x1e/0x30 [ 205.025778] x64_sys_call+0x16ba/0x2150 [ 205.026942] do_syscall_64+0x56/0x1e0 [ 205.028108] entry_SYSCALL_64_after_hwframe+0x76/0x7e [ 205.029276] RIP: 0033:0x7fbc36f10104 [ 205.030420] Code: 89 02 48 c7 c0 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 8d 05 e1 08 2e 00 8b 00 85 c0 75 13 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 54 f3 c3 66 90 41 54 55 49 89 d4 53 48 89 f5 This patch sets ccp_debugfs_dir to NULL after destroying it in ccp5_debugfs_destroy, allowing the directory dentry to be recreated when rebinding the ccp device. Tested on AMD Ryzen 7 1700X.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/181698af38d3f93381229ad89c09b5bd0496661a
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/20c0ed8dd65834e6bab464f54cd6ff68659bacb9
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2d4060f05e74dbee884ba723f6afd9282befc3c5
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/64ec9a7e7a6398b172ab6feba60e952163a1c3d5
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6eadf50c1d894cb34f3237064063207460946040
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9dea08eac4f6d6fbbae59992978252e2edab995d
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a25ab6dfa0ce323ec308966988be6b675eb9d3e5
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ce63a83925964ab7564bd216bd92b80bc365492e
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/db111468531777cac8b4beb6515a88a54b0c4a74
Impacted products
Vendor Product Version
Linux Linux Version: 3cdbe346ed3f380eae1cb3e9febfe703e7d8a7b0
Version: 3cdbe346ed3f380eae1cb3e9febfe703e7d8a7b0
Version: 3cdbe346ed3f380eae1cb3e9febfe703e7d8a7b0
Version: 3cdbe346ed3f380eae1cb3e9febfe703e7d8a7b0
Version: 3cdbe346ed3f380eae1cb3e9febfe703e7d8a7b0
Version: 3cdbe346ed3f380eae1cb3e9febfe703e7d8a7b0
Version: 3cdbe346ed3f380eae1cb3e9febfe703e7d8a7b0
Version: 3cdbe346ed3f380eae1cb3e9febfe703e7d8a7b0
Version: 3cdbe346ed3f380eae1cb3e9febfe703e7d8a7b0
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   Linux Linux Version: 4.13
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{
  "containers": {
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                  "vulnerable": true
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                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.16.1",
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                  "vulnerable": true
                },
                {
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                  "versionEndExcluding": "6.17-rc1",
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              "negate": false,
              "operator": "OR"
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: ccp - Fix crash when rebind ccp device for ccp.ko\n\nWhen CONFIG_CRYPTO_DEV_CCP_DEBUGFS is enabled, rebinding\nthe ccp device causes the following crash:\n\n$ echo \u00270000:0a:00.2\u0027 \u003e /sys/bus/pci/drivers/ccp/unbind\n$ echo \u00270000:0a:00.2\u0027 \u003e /sys/bus/pci/drivers/ccp/bind\n\n[  204.976930] BUG: kernel NULL pointer dereference, address: 0000000000000098\n[  204.978026] #PF: supervisor write access in kernel mode\n[  204.979126] #PF: error_code(0x0002) - not-present page\n[  204.980226] PGD 0 P4D 0\n[  204.981317] Oops: Oops: 0002 [#1] SMP NOPTI\n...\n[  204.997852] Call Trace:\n[  204.999074]  \u003cTASK\u003e\n[  205.000297]  start_creating+0x9f/0x1c0\n[  205.001533]  debugfs_create_dir+0x1f/0x170\n[  205.002769]  ? srso_return_thunk+0x5/0x5f\n[  205.004000]  ccp5_debugfs_setup+0x87/0x170 [ccp]\n[  205.005241]  ccp5_init+0x8b2/0x960 [ccp]\n[  205.006469]  ccp_dev_init+0xd4/0x150 [ccp]\n[  205.007709]  sp_init+0x5f/0x80 [ccp]\n[  205.008942]  sp_pci_probe+0x283/0x2e0 [ccp]\n[  205.010165]  ? srso_return_thunk+0x5/0x5f\n[  205.011376]  local_pci_probe+0x4f/0xb0\n[  205.012584]  pci_device_probe+0xdb/0x230\n[  205.013810]  really_probe+0xed/0x380\n[  205.015024]  __driver_probe_device+0x7e/0x160\n[  205.016240]  device_driver_attach+0x2f/0x60\n[  205.017457]  bind_store+0x7c/0xb0\n[  205.018663]  drv_attr_store+0x28/0x40\n[  205.019868]  sysfs_kf_write+0x5f/0x70\n[  205.021065]  kernfs_fop_write_iter+0x145/0x1d0\n[  205.022267]  vfs_write+0x308/0x440\n[  205.023453]  ksys_write+0x6d/0xe0\n[  205.024616]  __x64_sys_write+0x1e/0x30\n[  205.025778]  x64_sys_call+0x16ba/0x2150\n[  205.026942]  do_syscall_64+0x56/0x1e0\n[  205.028108]  entry_SYSCALL_64_after_hwframe+0x76/0x7e\n[  205.029276] RIP: 0033:0x7fbc36f10104\n[  205.030420] Code: 89 02 48 c7 c0 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 8d 05 e1 08 2e 00 8b 00 85 c0 75 13 b8 01 00 00 00 0f 05 \u003c48\u003e 3d 00 f0 ff ff 77 54 f3 c3 66 90 41 54 55 49 89 d4 53 48 89 f5\n\nThis patch sets ccp_debugfs_dir to NULL after destroying it in\nccp5_debugfs_destroy, allowing the directory dentry to be\nrecreated when rebinding the ccp device.\n\nTested on AMD Ryzen 7 1700X."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-08-28T14:43:59.913Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/a25ab6dfa0ce323ec308966988be6b675eb9d3e5"
        },
        {
          "url": "https://git.kernel.org/stable/c/ce63a83925964ab7564bd216bd92b80bc365492e"
        },
        {
          "url": "https://git.kernel.org/stable/c/20c0ed8dd65834e6bab464f54cd6ff68659bacb9"
        },
        {
          "url": "https://git.kernel.org/stable/c/2d4060f05e74dbee884ba723f6afd9282befc3c5"
        },
        {
          "url": "https://git.kernel.org/stable/c/db111468531777cac8b4beb6515a88a54b0c4a74"
        },
        {
          "url": "https://git.kernel.org/stable/c/9dea08eac4f6d6fbbae59992978252e2edab995d"
        },
        {
          "url": "https://git.kernel.org/stable/c/6eadf50c1d894cb34f3237064063207460946040"
        },
        {
          "url": "https://git.kernel.org/stable/c/64ec9a7e7a6398b172ab6feba60e952163a1c3d5"
        },
        {
          "url": "https://git.kernel.org/stable/c/181698af38d3f93381229ad89c09b5bd0496661a"
        }
      ],
      "title": "crypto: ccp - Fix crash when rebind ccp device for ccp.ko",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-38581",
    "datePublished": "2025-08-19T17:03:03.718Z",
    "dateReserved": "2025-04-16T04:51:24.026Z",
    "dateUpdated": "2025-08-28T14:43:59.913Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-38581\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-08-19T17:15:35.280\",\"lastModified\":\"2025-08-28T15:15:54.400\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\ncrypto: ccp - Fix crash when rebind ccp device for ccp.ko\\n\\nWhen CONFIG_CRYPTO_DEV_CCP_DEBUGFS is enabled, rebinding\\nthe ccp device causes the following crash:\\n\\n$ echo \u00270000:0a:00.2\u0027 \u003e /sys/bus/pci/drivers/ccp/unbind\\n$ echo \u00270000:0a:00.2\u0027 \u003e /sys/bus/pci/drivers/ccp/bind\\n\\n[  204.976930] BUG: kernel NULL pointer dereference, address: 0000000000000098\\n[  204.978026] #PF: supervisor write access in kernel mode\\n[  204.979126] #PF: error_code(0x0002) - not-present page\\n[  204.980226] PGD 0 P4D 0\\n[  204.981317] Oops: Oops: 0002 [#1] SMP NOPTI\\n...\\n[  204.997852] Call Trace:\\n[  204.999074]  \u003cTASK\u003e\\n[  205.000297]  start_creating+0x9f/0x1c0\\n[  205.001533]  debugfs_create_dir+0x1f/0x170\\n[  205.002769]  ? srso_return_thunk+0x5/0x5f\\n[  205.004000]  ccp5_debugfs_setup+0x87/0x170 [ccp]\\n[  205.005241]  ccp5_init+0x8b2/0x960 [ccp]\\n[  205.006469]  ccp_dev_init+0xd4/0x150 [ccp]\\n[  205.007709]  sp_init+0x5f/0x80 [ccp]\\n[  205.008942]  sp_pci_probe+0x283/0x2e0 [ccp]\\n[  205.010165]  ? srso_return_thunk+0x5/0x5f\\n[  205.011376]  local_pci_probe+0x4f/0xb0\\n[  205.012584]  pci_device_probe+0xdb/0x230\\n[  205.013810]  really_probe+0xed/0x380\\n[  205.015024]  __driver_probe_device+0x7e/0x160\\n[  205.016240]  device_driver_attach+0x2f/0x60\\n[  205.017457]  bind_store+0x7c/0xb0\\n[  205.018663]  drv_attr_store+0x28/0x40\\n[  205.019868]  sysfs_kf_write+0x5f/0x70\\n[  205.021065]  kernfs_fop_write_iter+0x145/0x1d0\\n[  205.022267]  vfs_write+0x308/0x440\\n[  205.023453]  ksys_write+0x6d/0xe0\\n[  205.024616]  __x64_sys_write+0x1e/0x30\\n[  205.025778]  x64_sys_call+0x16ba/0x2150\\n[  205.026942]  do_syscall_64+0x56/0x1e0\\n[  205.028108]  entry_SYSCALL_64_after_hwframe+0x76/0x7e\\n[  205.029276] RIP: 0033:0x7fbc36f10104\\n[  205.030420] Code: 89 02 48 c7 c0 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 8d 05 e1 08 2e 00 8b 00 85 c0 75 13 b8 01 00 00 00 0f 05 \u003c48\u003e 3d 00 f0 ff ff 77 54 f3 c3 66 90 41 54 55 49 89 d4 53 48 89 f5\\n\\nThis patch sets ccp_debugfs_dir to NULL after destroying it in\\nccp5_debugfs_destroy, allowing the directory dentry to be\\nrecreated when rebinding the ccp device.\\n\\nTested on AMD Ryzen 7 1700X.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: crypto: ccp - Se corrige el fallo al revincular el dispositivo ccp para ccp.ko Cuando CONFIG_CRYPTO_DEV_CCP_DEBUGFS est\u00e1 habilitado, revincular el dispositivo ccp provoca el siguiente fallo: $ echo \u00270000:0a:00.2\u0027 \u0026gt; /sys/bus/pci/drivers/ccp/unbind $ echo \u00270000:0a:00.2\u0027 \u0026gt; /sys/bus/pci/drivers/ccp/bind [ 204.976930] ERROR: desreferencia de puntero NULL del kernel, direcci\u00f3n: 0000000000000098 [ 204.978026] #PF: acceso de escritura del supervisor en modo kernel [ 204.979126] #PF: error_code(0x0002) - p\u00e1gina no presente [ 204.980226] PGD 0 P4D 0 [ 204.981317] Ups: Ups: 0002 [#1] SMP NOPTI ... [ 204.997852] Seguimiento de llamadas: [ 204.999074]  [ 205.000297] start_creating+0x9f/0x1c0 [ 205.001533] debugfs_create_dir+0x1f/0x170 [ 205.002769] ? srso_return_thunk+0x5/0x5f [ 205.004000] ccp5_debugfs_setup+0x87/0x170 [ccp] [ 205.005241] ccp5_init+0x8b2/0x960 [ccp] [ 205.006469] ccp_dev_init+0xd4/0x150 [ccp] [ 205.007709] sp_init+0x5f/0x80 [ccp] [ 205.008942] sp_pci_probe+0x283/0x2e0 [ccp] [ 205.010165] ? srso_return_thunk+0x5/0x5f [ 205.011376] local_pci_probe+0x4f/0xb0 [ 205.012584] pci_device_probe+0xdb/0x230 [ 205.013810] really_probe+0xed/0x380 [ 205.015024] __driver_probe_device+0x7e/0x160 [ 205.016240] device_driver_attach+0x2f/0x60 [ 205.017457] bind_store+0x7c/0xb0 [ 205.018663] drv_attr_store+0x28/0x40 [ 205.019868] sysfs_kf_write+0x5f/0x70 [ 205.021065] kernfs_fop_write_iter+0x145/0x1d0 [ 205.022267] vfs_write+0x308/0x440 [ 205.023453] ksys_write+0x6d/0xe0 [ 205.024616] __x64_sys_write+0x1e/0x30 [ 205.025778] x64_sys_call+0x16ba/0x2150 [ 205.026942] do_syscall_64+0x56/0x1e0 [ 205.028108] entry_SYSCALL_64_after_hwframe+0x76/0x7e [ 205.029276] RIP: 0033:0x7fbc36f10104 [ 205.030420] Code: 89 02 48 c7 c0 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 8d 05 e1 08 2e 00 8b 00 85 c0 75 13 b8 01 00 00 00 0f 05 \u0026lt;48\u0026gt; 3d 00 f0 ff ff 77 54 f3 c3 66 90 41 54 55 49 89 d4 53 48 89 f5  Este parche establece ccp_debugfs_dir como NULL tras destruirlo en ccp5_debugfs_destroy, lo que permite recrear la entrada del directorio al reenlazar el dispositivo ccp. Probado en AMD Ryzen 7 1700X.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/181698af38d3f93381229ad89c09b5bd0496661a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/20c0ed8dd65834e6bab464f54cd6ff68659bacb9\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/2d4060f05e74dbee884ba723f6afd9282befc3c5\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/64ec9a7e7a6398b172ab6feba60e952163a1c3d5\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/6eadf50c1d894cb34f3237064063207460946040\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/9dea08eac4f6d6fbbae59992978252e2edab995d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/a25ab6dfa0ce323ec308966988be6b675eb9d3e5\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/ce63a83925964ab7564bd216bd92b80bc365492e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/db111468531777cac8b4beb6515a88a54b0c4a74\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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