CVE-2024-50150
Vulnerability from cvelistv5
Published
2024-11-07 09:31
Modified
2024-12-19 09:34
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: usb: typec: altmode should keep reference to parent The altmode device release refers to its parent device, but without keeping a reference to it. When registering the altmode, get a reference to the parent and put it in the release function. Before this fix, when using CONFIG_DEBUG_KOBJECT_RELEASE, we see issues like this: [ 43.572860] kobject: 'port0.0' (ffff8880057ba008): kobject_release, parent 0000000000000000 (delayed 3000) [ 43.573532] kobject: 'port0.1' (ffff8880057bd008): kobject_release, parent 0000000000000000 (delayed 1000) [ 43.574407] kobject: 'port0' (ffff8880057b9008): kobject_release, parent 0000000000000000 (delayed 3000) [ 43.575059] kobject: 'port1.0' (ffff8880057ca008): kobject_release, parent 0000000000000000 (delayed 4000) [ 43.575908] kobject: 'port1.1' (ffff8880057c9008): kobject_release, parent 0000000000000000 (delayed 4000) [ 43.576908] kobject: 'typec' (ffff8880062dbc00): kobject_release, parent 0000000000000000 (delayed 4000) [ 43.577769] kobject: 'port1' (ffff8880057bf008): kobject_release, parent 0000000000000000 (delayed 3000) [ 46.612867] ================================================================== [ 46.613402] BUG: KASAN: slab-use-after-free in typec_altmode_release+0x38/0x129 [ 46.614003] Read of size 8 at addr ffff8880057b9118 by task kworker/2:1/48 [ 46.614538] [ 46.614668] CPU: 2 UID: 0 PID: 48 Comm: kworker/2:1 Not tainted 6.12.0-rc1-00138-gedbae730ad31 #535 [ 46.615391] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.15.0-1 04/01/2014 [ 46.616042] Workqueue: events kobject_delayed_cleanup [ 46.616446] Call Trace: [ 46.616648] <TASK> [ 46.616820] dump_stack_lvl+0x5b/0x7c [ 46.617112] ? typec_altmode_release+0x38/0x129 [ 46.617470] print_report+0x14c/0x49e [ 46.617769] ? rcu_read_unlock_sched+0x56/0x69 [ 46.618117] ? __virt_addr_valid+0x19a/0x1ab [ 46.618456] ? kmem_cache_debug_flags+0xc/0x1d [ 46.618807] ? typec_altmode_release+0x38/0x129 [ 46.619161] kasan_report+0x8d/0xb4 [ 46.619447] ? typec_altmode_release+0x38/0x129 [ 46.619809] ? process_scheduled_works+0x3cb/0x85f [ 46.620185] typec_altmode_release+0x38/0x129 [ 46.620537] ? process_scheduled_works+0x3cb/0x85f [ 46.620907] device_release+0xaf/0xf2 [ 46.621206] kobject_delayed_cleanup+0x13b/0x17a [ 46.621584] process_scheduled_works+0x4f6/0x85f [ 46.621955] ? __pfx_process_scheduled_works+0x10/0x10 [ 46.622353] ? hlock_class+0x31/0x9a [ 46.622647] ? lock_acquired+0x361/0x3c3 [ 46.622956] ? move_linked_works+0x46/0x7d [ 46.623277] worker_thread+0x1ce/0x291 [ 46.623582] ? __kthread_parkme+0xc8/0xdf [ 46.623900] ? __pfx_worker_thread+0x10/0x10 [ 46.624236] kthread+0x17e/0x190 [ 46.624501] ? kthread+0xfb/0x190 [ 46.624756] ? __pfx_kthread+0x10/0x10 [ 46.625015] ret_from_fork+0x20/0x40 [ 46.625268] ? __pfx_kthread+0x10/0x10 [ 46.625532] ret_from_fork_asm+0x1a/0x30 [ 46.625805] </TASK> [ 46.625953] [ 46.626056] Allocated by task 678: [ 46.626287] kasan_save_stack+0x24/0x44 [ 46.626555] kasan_save_track+0x14/0x2d [ 46.626811] __kasan_kmalloc+0x3f/0x4d [ 46.627049] __kmalloc_noprof+0x1bf/0x1f0 [ 46.627362] typec_register_port+0x23/0x491 [ 46.627698] cros_typec_probe+0x634/0xbb6 [ 46.628026] platform_probe+0x47/0x8c [ 46.628311] really_probe+0x20a/0x47d [ 46.628605] device_driver_attach+0x39/0x72 [ 46.628940] bind_store+0x87/0xd7 [ 46.629213] kernfs_fop_write_iter+0x1aa/0x218 [ 46.629574] vfs_write+0x1d6/0x29b [ 46.629856] ksys_write+0xcd/0x13b [ 46.630128] do_syscall_64+0xd4/0x139 [ 46.630420] entry_SYSCALL_64_after_hwframe+0x76/0x7e [ 46.630820] [ 46.630946] Freed by task 48: [ 46.631182] kasan_save_stack+0x24/0x44 [ 46.631493] kasan_save_track+0x14/0x2d [ 46.631799] kasan_save_free_info+0x3f/0x4d [ 46.632144] __kasan_slab_free+0x37/0x45 [ 46.632474] ---truncated---
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1ded6b12499e6dee9b0e1ceac633be36538f6fc2Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2b0b33e8a58388fa9078f0fbe9af1900e6b08879Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2c15c4133d00f5da632fce60ed013fc31aa9aa58Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/68a7c7fe322546be1464174c8d85874b8161dedaPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6af43ec3bf40f8b428d9134ffa7a291aecd60da8Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/87474406056891e4fdea0794e1f632b21b3dfa27Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/bee1b68cb8bcee4fd3a8bde3a4886e0b1375dc4dPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/befab3a278c59db0cc88c8799638064f6d3fd6f8Patch
Impacted products
Vendor Product Version
Linux Linux Version: 4.19
Show details on NVD website

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/usb/typec/class.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "2b0b33e8a58388fa9078f0fbe9af1900e6b08879",
              "status": "affected",
              "version": "8a37d87d72f0c69f837229c04d2fcd7117ea57e7",
              "versionType": "git"
            },
            {
              "lessThan": "2c15c4133d00f5da632fce60ed013fc31aa9aa58",
              "status": "affected",
              "version": "8a37d87d72f0c69f837229c04d2fcd7117ea57e7",
              "versionType": "git"
            },
            {
              "lessThan": "6af43ec3bf40f8b428d9134ffa7a291aecd60da8",
              "status": "affected",
              "version": "8a37d87d72f0c69f837229c04d2fcd7117ea57e7",
              "versionType": "git"
            },
            {
              "lessThan": "87474406056891e4fdea0794e1f632b21b3dfa27",
              "status": "affected",
              "version": "8a37d87d72f0c69f837229c04d2fcd7117ea57e7",
              "versionType": "git"
            },
            {
              "lessThan": "bee1b68cb8bcee4fd3a8bde3a4886e0b1375dc4d",
              "status": "affected",
              "version": "8a37d87d72f0c69f837229c04d2fcd7117ea57e7",
              "versionType": "git"
            },
            {
              "lessThan": "1ded6b12499e6dee9b0e1ceac633be36538f6fc2",
              "status": "affected",
              "version": "8a37d87d72f0c69f837229c04d2fcd7117ea57e7",
              "versionType": "git"
            },
            {
              "lessThan": "68a7c7fe322546be1464174c8d85874b8161deda",
              "status": "affected",
              "version": "8a37d87d72f0c69f837229c04d2fcd7117ea57e7",
              "versionType": "git"
            },
            {
              "lessThan": "befab3a278c59db0cc88c8799638064f6d3fd6f8",
              "status": "affected",
              "version": "8a37d87d72f0c69f837229c04d2fcd7117ea57e7",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/usb/typec/class.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.19"
            },
            {
              "lessThan": "4.19",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.323",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.285",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.229",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.170",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.115",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.59",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.11.*",
              "status": "unaffected",
              "version": "6.11.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.12",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: typec: altmode should keep reference to parent\n\nThe altmode device release refers to its parent device, but without keeping\na reference to it.\n\nWhen registering the altmode, get a reference to the parent and put it in\nthe release function.\n\nBefore this fix, when using CONFIG_DEBUG_KOBJECT_RELEASE, we see issues\nlike this:\n\n[   43.572860] kobject: \u0027port0.0\u0027 (ffff8880057ba008): kobject_release, parent 0000000000000000 (delayed 3000)\n[   43.573532] kobject: \u0027port0.1\u0027 (ffff8880057bd008): kobject_release, parent 0000000000000000 (delayed 1000)\n[   43.574407] kobject: \u0027port0\u0027 (ffff8880057b9008): kobject_release, parent 0000000000000000 (delayed 3000)\n[   43.575059] kobject: \u0027port1.0\u0027 (ffff8880057ca008): kobject_release, parent 0000000000000000 (delayed 4000)\n[   43.575908] kobject: \u0027port1.1\u0027 (ffff8880057c9008): kobject_release, parent 0000000000000000 (delayed 4000)\n[   43.576908] kobject: \u0027typec\u0027 (ffff8880062dbc00): kobject_release, parent 0000000000000000 (delayed 4000)\n[   43.577769] kobject: \u0027port1\u0027 (ffff8880057bf008): kobject_release, parent 0000000000000000 (delayed 3000)\n[   46.612867] ==================================================================\n[   46.613402] BUG: KASAN: slab-use-after-free in typec_altmode_release+0x38/0x129\n[   46.614003] Read of size 8 at addr ffff8880057b9118 by task kworker/2:1/48\n[   46.614538]\n[   46.614668] CPU: 2 UID: 0 PID: 48 Comm: kworker/2:1 Not tainted 6.12.0-rc1-00138-gedbae730ad31 #535\n[   46.615391] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.15.0-1 04/01/2014\n[   46.616042] Workqueue: events kobject_delayed_cleanup\n[   46.616446] Call Trace:\n[   46.616648]  \u003cTASK\u003e\n[   46.616820]  dump_stack_lvl+0x5b/0x7c\n[   46.617112]  ? typec_altmode_release+0x38/0x129\n[   46.617470]  print_report+0x14c/0x49e\n[   46.617769]  ? rcu_read_unlock_sched+0x56/0x69\n[   46.618117]  ? __virt_addr_valid+0x19a/0x1ab\n[   46.618456]  ? kmem_cache_debug_flags+0xc/0x1d\n[   46.618807]  ? typec_altmode_release+0x38/0x129\n[   46.619161]  kasan_report+0x8d/0xb4\n[   46.619447]  ? typec_altmode_release+0x38/0x129\n[   46.619809]  ? process_scheduled_works+0x3cb/0x85f\n[   46.620185]  typec_altmode_release+0x38/0x129\n[   46.620537]  ? process_scheduled_works+0x3cb/0x85f\n[   46.620907]  device_release+0xaf/0xf2\n[   46.621206]  kobject_delayed_cleanup+0x13b/0x17a\n[   46.621584]  process_scheduled_works+0x4f6/0x85f\n[   46.621955]  ? __pfx_process_scheduled_works+0x10/0x10\n[   46.622353]  ? hlock_class+0x31/0x9a\n[   46.622647]  ? lock_acquired+0x361/0x3c3\n[   46.622956]  ? move_linked_works+0x46/0x7d\n[   46.623277]  worker_thread+0x1ce/0x291\n[   46.623582]  ? __kthread_parkme+0xc8/0xdf\n[   46.623900]  ? __pfx_worker_thread+0x10/0x10\n[   46.624236]  kthread+0x17e/0x190\n[   46.624501]  ? kthread+0xfb/0x190\n[   46.624756]  ? __pfx_kthread+0x10/0x10\n[   46.625015]  ret_from_fork+0x20/0x40\n[   46.625268]  ? __pfx_kthread+0x10/0x10\n[   46.625532]  ret_from_fork_asm+0x1a/0x30\n[   46.625805]  \u003c/TASK\u003e\n[   46.625953]\n[   46.626056] Allocated by task 678:\n[   46.626287]  kasan_save_stack+0x24/0x44\n[   46.626555]  kasan_save_track+0x14/0x2d\n[   46.626811]  __kasan_kmalloc+0x3f/0x4d\n[   46.627049]  __kmalloc_noprof+0x1bf/0x1f0\n[   46.627362]  typec_register_port+0x23/0x491\n[   46.627698]  cros_typec_probe+0x634/0xbb6\n[   46.628026]  platform_probe+0x47/0x8c\n[   46.628311]  really_probe+0x20a/0x47d\n[   46.628605]  device_driver_attach+0x39/0x72\n[   46.628940]  bind_store+0x87/0xd7\n[   46.629213]  kernfs_fop_write_iter+0x1aa/0x218\n[   46.629574]  vfs_write+0x1d6/0x29b\n[   46.629856]  ksys_write+0xcd/0x13b\n[   46.630128]  do_syscall_64+0xd4/0x139\n[   46.630420]  entry_SYSCALL_64_after_hwframe+0x76/0x7e\n[   46.630820]\n[   46.630946] Freed by task 48:\n[   46.631182]  kasan_save_stack+0x24/0x44\n[   46.631493]  kasan_save_track+0x14/0x2d\n[   46.631799]  kasan_save_free_info+0x3f/0x4d\n[   46.632144]  __kasan_slab_free+0x37/0x45\n[   46.632474]\n---truncated---"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-12-19T09:34:11.774Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/2b0b33e8a58388fa9078f0fbe9af1900e6b08879"
        },
        {
          "url": "https://git.kernel.org/stable/c/2c15c4133d00f5da632fce60ed013fc31aa9aa58"
        },
        {
          "url": "https://git.kernel.org/stable/c/6af43ec3bf40f8b428d9134ffa7a291aecd60da8"
        },
        {
          "url": "https://git.kernel.org/stable/c/87474406056891e4fdea0794e1f632b21b3dfa27"
        },
        {
          "url": "https://git.kernel.org/stable/c/bee1b68cb8bcee4fd3a8bde3a4886e0b1375dc4d"
        },
        {
          "url": "https://git.kernel.org/stable/c/1ded6b12499e6dee9b0e1ceac633be36538f6fc2"
        },
        {
          "url": "https://git.kernel.org/stable/c/68a7c7fe322546be1464174c8d85874b8161deda"
        },
        {
          "url": "https://git.kernel.org/stable/c/befab3a278c59db0cc88c8799638064f6d3fd6f8"
        }
      ],
      "title": "usb: typec: altmode should keep reference to parent",
      "x_generator": {
        "engine": "bippy-5f407fcff5a0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-50150",
    "datePublished": "2024-11-07T09:31:26.782Z",
    "dateReserved": "2024-10-21T19:36:19.959Z",
    "dateUpdated": "2024-12-19T09:34:11.774Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2024-50150\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-11-07T10:15:06.707\",\"lastModified\":\"2024-11-22T17:29:00.880\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nusb: typec: altmode should keep reference to parent\\n\\nThe altmode device release refers to its parent device, but without keeping\\na reference to it.\\n\\nWhen registering the altmode, get a reference to the parent and put it in\\nthe release function.\\n\\nBefore this fix, when using CONFIG_DEBUG_KOBJECT_RELEASE, we see issues\\nlike this:\\n\\n[   43.572860] kobject: \u0027port0.0\u0027 (ffff8880057ba008): kobject_release, parent 0000000000000000 (delayed 3000)\\n[   43.573532] kobject: \u0027port0.1\u0027 (ffff8880057bd008): kobject_release, parent 0000000000000000 (delayed 1000)\\n[   43.574407] kobject: \u0027port0\u0027 (ffff8880057b9008): kobject_release, parent 0000000000000000 (delayed 3000)\\n[   43.575059] kobject: \u0027port1.0\u0027 (ffff8880057ca008): kobject_release, parent 0000000000000000 (delayed 4000)\\n[   43.575908] kobject: \u0027port1.1\u0027 (ffff8880057c9008): kobject_release, parent 0000000000000000 (delayed 4000)\\n[   43.576908] kobject: \u0027typec\u0027 (ffff8880062dbc00): kobject_release, parent 0000000000000000 (delayed 4000)\\n[   43.577769] kobject: \u0027port1\u0027 (ffff8880057bf008): kobject_release, parent 0000000000000000 (delayed 3000)\\n[   46.612867] ==================================================================\\n[   46.613402] BUG: KASAN: slab-use-after-free in typec_altmode_release+0x38/0x129\\n[   46.614003] Read of size 8 at addr ffff8880057b9118 by task kworker/2:1/48\\n[   46.614538]\\n[   46.614668] CPU: 2 UID: 0 PID: 48 Comm: kworker/2:1 Not tainted 6.12.0-rc1-00138-gedbae730ad31 #535\\n[   46.615391] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.15.0-1 04/01/2014\\n[   46.616042] Workqueue: events kobject_delayed_cleanup\\n[   46.616446] Call Trace:\\n[   46.616648]  \u003cTASK\u003e\\n[   46.616820]  dump_stack_lvl+0x5b/0x7c\\n[   46.617112]  ? typec_altmode_release+0x38/0x129\\n[   46.617470]  print_report+0x14c/0x49e\\n[   46.617769]  ? rcu_read_unlock_sched+0x56/0x69\\n[   46.618117]  ? __virt_addr_valid+0x19a/0x1ab\\n[   46.618456]  ? kmem_cache_debug_flags+0xc/0x1d\\n[   46.618807]  ? typec_altmode_release+0x38/0x129\\n[   46.619161]  kasan_report+0x8d/0xb4\\n[   46.619447]  ? typec_altmode_release+0x38/0x129\\n[   46.619809]  ? process_scheduled_works+0x3cb/0x85f\\n[   46.620185]  typec_altmode_release+0x38/0x129\\n[   46.620537]  ? process_scheduled_works+0x3cb/0x85f\\n[   46.620907]  device_release+0xaf/0xf2\\n[   46.621206]  kobject_delayed_cleanup+0x13b/0x17a\\n[   46.621584]  process_scheduled_works+0x4f6/0x85f\\n[   46.621955]  ? __pfx_process_scheduled_works+0x10/0x10\\n[   46.622353]  ? hlock_class+0x31/0x9a\\n[   46.622647]  ? lock_acquired+0x361/0x3c3\\n[   46.622956]  ? move_linked_works+0x46/0x7d\\n[   46.623277]  worker_thread+0x1ce/0x291\\n[   46.623582]  ? __kthread_parkme+0xc8/0xdf\\n[   46.623900]  ? __pfx_worker_thread+0x10/0x10\\n[   46.624236]  kthread+0x17e/0x190\\n[   46.624501]  ? kthread+0xfb/0x190\\n[   46.624756]  ? __pfx_kthread+0x10/0x10\\n[   46.625015]  ret_from_fork+0x20/0x40\\n[   46.625268]  ? __pfx_kthread+0x10/0x10\\n[   46.625532]  ret_from_fork_asm+0x1a/0x30\\n[   46.625805]  \u003c/TASK\u003e\\n[   46.625953]\\n[   46.626056] Allocated by task 678:\\n[   46.626287]  kasan_save_stack+0x24/0x44\\n[   46.626555]  kasan_save_track+0x14/0x2d\\n[   46.626811]  __kasan_kmalloc+0x3f/0x4d\\n[   46.627049]  __kmalloc_noprof+0x1bf/0x1f0\\n[   46.627362]  typec_register_port+0x23/0x491\\n[   46.627698]  cros_typec_probe+0x634/0xbb6\\n[   46.628026]  platform_probe+0x47/0x8c\\n[   46.628311]  really_probe+0x20a/0x47d\\n[   46.628605]  device_driver_attach+0x39/0x72\\n[   46.628940]  bind_store+0x87/0xd7\\n[   46.629213]  kernfs_fop_write_iter+0x1aa/0x218\\n[   46.629574]  vfs_write+0x1d6/0x29b\\n[   46.629856]  ksys_write+0xcd/0x13b\\n[   46.630128]  do_syscall_64+0xd4/0x139\\n[   46.630420]  entry_SYSCALL_64_after_hwframe+0x76/0x7e\\n[   46.630820]\\n[   46.630946] Freed by task 48:\\n[   46.631182]  kasan_save_stack+0x24/0x44\\n[   46.631493]  kasan_save_track+0x14/0x2d\\n[   46.631799]  kasan_save_free_info+0x3f/0x4d\\n[   46.632144]  __kasan_slab_free+0x37/0x45\\n[   46.632474]\\n---truncated---\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: usb: typec: altmode deber\u00eda mantener la referencia al padre La versi\u00f3n del dispositivo altmode hace referencia a su dispositivo padre, pero sin mantener una referencia a \u00e9l. Al registrar el altmode, se obtiene una referencia al padre y se coloca en la funci\u00f3n de lanzamiento. Antes de esta correcci\u00f3n, al usar CONFIG_DEBUG_KOBJECT_RELEASE, vemos problemas como este: [ 43.572860] kobject: \u0027port0.0\u0027 (ffff8880057ba008): kobject_release, parent 000000000000000 (delayed 3000) [ 43.573532] kobject: \u0027port0.1\u0027 (ffff8880057bd008): kobject_release, parent 000000000000000 (delayed 1000) [ 43.574407] kobject: \u0027port0\u0027 (ffff8880057b9008): kobject_release, parent 0000000000000000 (delayed 3000) [ 43.575059] kobject: \u0027port1.0\u0027 (ffff8880057ca008): kobject_release, padre 0000000000000000 (retrasado 4000) [ 43.575908] kobject: \u0027port1.1\u0027 (ffff8880057c9008): kobject_release, padre 0000000000000000 (retrasado 4000) [ 43.576908] kobject: \u0027typec\u0027 (ffff8880062dbc00): kobject_release, padre 000000000000000 (retrasado 4000) [ 43.577769] kobject: \u0027port1\u0027 (ffff8880057bf008): kobject_release, padre 0000000000000000 (retrasado 3000) [ 46.612867] ======================================================================= [ 46.613402] ERROR: KASAN: slab-use-after-free en typec_altmode_release+0x38/0x129 [ 46.614003] Lectura de tama\u00f1o 8 en la direcci\u00f3n ffff8880057b9118 por la tarea kworker/2:1/48 [ 46.614538] [ 46.614668] CPU: 2 UID: 0 PID: 48 Comm: kworker/2:1 No contaminado 6.12.0-rc1-00138-gedbae730ad31 #535 [ 46.615391] Nombre del hardware: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.15.0-1 04/01/2014 [ 46.616042] Cola de trabajo: eventos kobject_delayed_cleanup [ 46.616446] Seguimiento de llamadas: [ 46.616648]  [ 46.616820] dump_stack_lvl+0x5b/0x7c [ 46.617112] ? kmem_cache_debug_flags+0xc/0x1d [ 46.618807] ? typec_altmode_release+0x38/0x129 [ 46.619161] kasan_report+0x8d/0xb4 [ 46.619447] ? proceso_trabajo_programado+0x3cb/0x85f [ 46.620185] tipoc_modo_alt_release+0x38/0x129 [ 46.620537] ? proceso_trabajo_programado+0x3cb/0x85f [ 46.620907] dispositivo_release+0xaf/0xf2 [ 46.621206] limpieza_retrasada_de_objetos+0x13b/0x17a [ 46.621584] proceso_trabajo_programado+0x4f6/0x85f [ 46.621955] ? __pfx_process_scheduled_works+0x10/0x10 [ 46.622353] ? hlock_class+0x31/0x9a [ 46.622647] ? lock_acquired+0x361/0x3c3 [ 46.622956] ? move_linked_works+0x46/0x7d [ 46.623277] subproceso de trabajo+0x1ce/0x291 [ 46.623582] ? __kthread_parkme+0xc8/0xdf [ 46.623900] ? __pfx_worker_thread+0x10/0x10 [ 46.624236] kthread+0x17e/0x190 [ 46.624501] ? kthread+0xfb/0x190 [ 46.624756] ? __pfx_kthread+0x10/0x10 [ 46.625015] ret_from_fork+0x20/0x40 [ 46.625268] ? __pfx_kthread+0x10/0x10 [ 46.625532] ret_from_fork_asm+0x1a/0x30 [ 46.625805]  [ 46.625953] [ 46.626056] Asignado por la tarea 678: [ 46.626287] kasan_save_stack+0x24/0x44 [ 46.626555] kasan_save_track+0x14/0x2d [ 46.626811] __kasan_kmalloc+0x3f/0x4d [ 46.627049] __kmalloc_noprof+0x1bf/0x1f0 [ 46.627362] typec_register_port+0x23/0x491 [ 46.627698] cros_typec_probe+0x634/0xbb6 [ 46.628026] platform_probe+0x47/0x8c [ 46.628311] really_probe+0x20a/0x47d [ 46.628605] device_driver_attach+0x39/0x72 [ 46.628940] bind_store+0x87/0xd7 [ 46.629213] kernfs_fop_write_iter+0x1aa/0x218 [ 46.629574] vfs_write+0x1d6/0x29b [ 46.629856] ksys_write+0xcd/0x13b [ 46.630128] do_syscall_64+0xd4/0x139 [ 46.630420] entry_SYSCALL_64_after_hwframe+0x76/0x7e [ 46.630820] [ 46.630946] Liberado por la tarea 48: [ 46.631182] kasan_save_stack+0x24/0x44 [ 46.631493] kasan_save_track+0x14/0x2d [ 46.631799] kasan_save_free_info+0x3f/0x4d [ 46.632144] __kasan_slab_free+0x37/0x45 [ 46.632474] ---truncado---\"}],\"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}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-416\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.19\",\"versionEndExcluding\":\"4.19.323\",\"matchCriteriaId\":\"6B3438F1-9C53-4842-B664-2FD0F4BA34C6\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.20\",\"versionEndExcluding\":\"5.4.285\",\"matchCriteriaId\":\"B5A89369-320F-47FC-8695-56F61F87E4C0\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.5\",\"versionEndExcluding\":\"5.10.229\",\"matchCriteriaId\":\"1A03CABE-9B43-4E7F-951F-10DEEADAA426\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.15.170\",\"matchCriteriaId\":\"A9BA1C73-2D2E-45E3-937B-276A28AEB5FC\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"6.1.115\",\"matchCriteriaId\":\"C08A77A6-E42E-4EFD-B5A1-2BF6CBBB42AE\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.2\",\"versionEndExcluding\":\"6.6.59\",\"matchCriteriaId\":\"5D15CA59-D15C-4ACD-8B03-A072DEAD2081\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7\",\"versionEndExcluding\":\"6.11.6\",\"matchCriteriaId\":\"E4486B12-007B-4794-9857-F07145637AA1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.12:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"7F361E1D-580F-4A2D-A509-7615F73167A1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.12:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"925478D0-3E3D-4E6F-ACD5-09F28D5DF82C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.12:rc3:*:*:*:*:*:*\",\"matchCriteriaId\":\"3C95E234-D335-4B6C-96BF-E2CEBD8654ED\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/1ded6b12499e6dee9b0e1ceac633be36538f6fc2\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/2b0b33e8a58388fa9078f0fbe9af1900e6b08879\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/2c15c4133d00f5da632fce60ed013fc31aa9aa58\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/68a7c7fe322546be1464174c8d85874b8161deda\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/6af43ec3bf40f8b428d9134ffa7a291aecd60da8\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/87474406056891e4fdea0794e1f632b21b3dfa27\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/bee1b68cb8bcee4fd3a8bde3a4886e0b1375dc4d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/befab3a278c59db0cc88c8799638064f6d3fd6f8\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}"
  }
}


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