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CVE-2024-56587 (GCVE-0-2024-56587)

Vulnerability from cvelistv5 – Published: 2024-12-27 14:50 – Updated: 2026-05-11 20:55
VLAI
Title
leds: class: Protect brightness_show() with led_cdev->led_access mutex
Summary
In the Linux kernel, the following vulnerability has been resolved: leds: class: Protect brightness_show() with led_cdev->led_access mutex There is NULL pointer issue observed if from Process A where hid device being added which results in adding a led_cdev addition and later a another call to access of led_cdev attribute from Process B can result in NULL pointer issue. Use mutex led_cdev->led_access to protect access to led->cdev and its attribute inside brightness_show() and max_brightness_show() and also update the comment for mutex that it should be used to protect the led class device fields. Process A Process B kthread+0x114 worker_thread+0x244 process_scheduled_works+0x248 uhid_device_add_worker+0x24 hid_add_device+0x120 device_add+0x268 bus_probe_device+0x94 device_initial_probe+0x14 __device_attach+0xfc bus_for_each_drv+0x10c __device_attach_driver+0x14c driver_probe_device+0x3c __driver_probe_device+0xa0 really_probe+0x190 hid_device_probe+0x130 ps_probe+0x990 ps_led_register+0x94 devm_led_classdev_register_ext+0x58 led_classdev_register_ext+0x1f8 device_create_with_groups+0x48 device_create_groups_vargs+0xc8 device_add+0x244 kobject_uevent+0x14 kobject_uevent_env[jt]+0x224 mutex_unlock[jt]+0xc4 __mutex_unlock_slowpath+0xd4 wake_up_q+0x70 try_to_wake_up[jt]+0x48c preempt_schedule_common+0x28 __schedule+0x628 __switch_to+0x174 el0t_64_sync+0x1a8/0x1ac el0t_64_sync_handler+0x68/0xbc el0_svc+0x38/0x68 do_el0_svc+0x1c/0x28 el0_svc_common+0x80/0xe0 invoke_syscall+0x58/0x114 __arm64_sys_read+0x1c/0x2c ksys_read+0x78/0xe8 vfs_read+0x1e0/0x2c8 kernfs_fop_read_iter+0x68/0x1b4 seq_read_iter+0x158/0x4ec kernfs_seq_show+0x44/0x54 sysfs_kf_seq_show+0xb4/0x130 dev_attr_show+0x38/0x74 brightness_show+0x20/0x4c dualshock4_led_get_brightness+0xc/0x74 [ 3313.874295][ T4013] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000060 [ 3313.874301][ T4013] Mem abort info: [ 3313.874303][ T4013] ESR = 0x0000000096000006 [ 3313.874305][ T4013] EC = 0x25: DABT (current EL), IL = 32 bits [ 3313.874307][ T4013] SET = 0, FnV = 0 [ 3313.874309][ T4013] EA = 0, S1PTW = 0 [ 3313.874311][ T4013] FSC = 0x06: level 2 translation fault [ 3313.874313][ T4013] Data abort info: [ 3313.874314][ T4013] ISV = 0, ISS = 0x00000006, ISS2 = 0x00000000 [ 3313.874316][ T4013] CM = 0, WnR = 0, TnD = 0, TagAccess = 0 [ 3313.874318][ T4013] GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0 [ 3313.874320][ T4013] user pgtable: 4k pages, 39-bit VAs, pgdp=00000008f2b0a000 .. [ 3313.874332][ T4013] Dumping ftrace buffer: [ 3313.874334][ T4013] (ftrace buffer empty) .. .. [ dd3313.874639][ T4013] CPU: 6 PID: 4013 Comm: InputReader [ 3313.874648][ T4013] pc : dualshock4_led_get_brightness+0xc/0x74 [ 3313.874653][ T4013] lr : led_update_brightness+0x38/0x60 [ 3313.874656][ T4013] sp : ffffffc0b910bbd0 .. .. [ 3313.874685][ T4013] Call trace: [ 3313.874687][ T4013] dualshock4_led_get_brightness+0xc/0x74 [ 3313.874690][ T4013] brightness_show+0x20/0x4c [ 3313.874692][ T4013] dev_attr_show+0x38/0x74 [ 3313.874696][ T4013] sysfs_kf_seq_show+0xb4/0x130 [ 3313.874700][ T4013] kernfs_seq_show+0x44/0x54 [ 3313.874703][ T4013] seq_read_iter+0x158/0x4ec [ 3313.874705][ T4013] kernfs_fop_read_iter+0x68/0x1b4 [ 3313.874708][ T4013] vfs_read+0x1e0/0x2c8 [ 3313.874711][ T4013] ksys_read+0x78/0xe8 [ 3313.874714][ T4013] __arm64_sys_read+0x1c/0x2c [ 3313.874718][ T4013] invoke_syscall+0x58/0x114 [ 3313.874721][ T4013] el0_svc_common+0x80/0xe0 [ 3313.874724][ T4013] do_el0_svc+0x1c/0x28 [ 3313.874727][ T4013] el0_svc+0x38/0x68 [ 3313.874730][ T4013] el0t_64_sync_handler+0x68/0xbc [ 3313.874732][ T4013] el0t_64_sync+0x1a8/0x1ac
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-10-01 20:01 UTC
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 29d76dfa29fe22583aefddccda0bc56aa81035dc , < 84b42d5b5fcd767c9b7f30b0b32065ed949fe804 (git)
Affected: 29d76dfa29fe22583aefddccda0bc56aa81035dc , < ddcfc5708da9972ac23a9121b3d819b0a53d6f21 (git)
Affected: 29d76dfa29fe22583aefddccda0bc56aa81035dc , < b8283d52ed15c02bb2eb9b1b8644dcc34f8e98f1 (git)
Affected: 29d76dfa29fe22583aefddccda0bc56aa81035dc , < 50d9f68e4adf86901cbab1bd5b91f710aa9141b9 (git)
Affected: 29d76dfa29fe22583aefddccda0bc56aa81035dc , < f6d6fb563e4be245a17bc4261a4b294e8bf8a31e (git)
Affected: 29d76dfa29fe22583aefddccda0bc56aa81035dc , < bb4a6236a430cfc3713f470f3a969f39d6d4ca25 (git)
Affected: 29d76dfa29fe22583aefddccda0bc56aa81035dc , < 4ca7cd938725a4050dcd62ae9472e931d603118d (git)
guessed Create a notification for this product.
Linux Linux Affected: 2.6.26
Unaffected: 0 , < 2.6.26 (semver)
Unaffected: 5.4.287 , ≤ 5.4.* (semver)
Unaffected: 5.10.231 , ≤ 5.10.* (semver)
Unaffected: 5.15.174 , ≤ 5.15.* (semver)
Unaffected: 6.1.120 , ≤ 6.1.* (semver)
Unaffected: 6.6.66 , ≤ 6.6.* (semver)
Unaffected: 6.12.5 , ≤ 6.12.* (semver)
Unaffected: 6.13 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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{
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              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "LOW",
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              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
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    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/leds/led-class.c",
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          ],
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              "status": "unaffected",
              "version": "5.15.174",
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              "status": "unaffected",
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              "status": "unaffected",
              "version": "6.12.5",
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              "status": "unaffected",
              "version": "6.13",
              "versionType": "original_commit_for_fix"
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      "cpeApplicability": [
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                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.287",
                  "versionStartIncluding": "2.6.26",
                  "vulnerable": true
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                {
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              "operator": "OR"
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nleds: class: Protect brightness_show() with led_cdev-\u003eled_access mutex\n\nThere is NULL pointer issue observed if from Process A where hid device\nbeing added which results in adding a led_cdev addition and later a\nanother call to access of led_cdev attribute from Process B can result\nin NULL pointer issue.\n\nUse mutex led_cdev-\u003eled_access to protect access to led-\u003ecdev and its\nattribute inside brightness_show() and max_brightness_show() and also\nupdate the comment for mutex that it should be used to protect the led\nclass device fields.\n\n\tProcess A \t\t\t\tProcess B\n\n kthread+0x114\n worker_thread+0x244\n process_scheduled_works+0x248\n uhid_device_add_worker+0x24\n hid_add_device+0x120\n device_add+0x268\n bus_probe_device+0x94\n device_initial_probe+0x14\n __device_attach+0xfc\n bus_for_each_drv+0x10c\n __device_attach_driver+0x14c\n driver_probe_device+0x3c\n __driver_probe_device+0xa0\n really_probe+0x190\n hid_device_probe+0x130\n ps_probe+0x990\n ps_led_register+0x94\n devm_led_classdev_register_ext+0x58\n led_classdev_register_ext+0x1f8\n device_create_with_groups+0x48\n device_create_groups_vargs+0xc8\n device_add+0x244\n kobject_uevent+0x14\n kobject_uevent_env[jt]+0x224\n mutex_unlock[jt]+0xc4\n __mutex_unlock_slowpath+0xd4\n wake_up_q+0x70\n try_to_wake_up[jt]+0x48c\n preempt_schedule_common+0x28\n __schedule+0x628\n __switch_to+0x174\n\t\t\t\t\t\tel0t_64_sync+0x1a8/0x1ac\n\t\t\t\t\t\tel0t_64_sync_handler+0x68/0xbc\n\t\t\t\t\t\tel0_svc+0x38/0x68\n\t\t\t\t\t\tdo_el0_svc+0x1c/0x28\n\t\t\t\t\t\tel0_svc_common+0x80/0xe0\n\t\t\t\t\t\tinvoke_syscall+0x58/0x114\n\t\t\t\t\t\t__arm64_sys_read+0x1c/0x2c\n\t\t\t\t\t\tksys_read+0x78/0xe8\n\t\t\t\t\t\tvfs_read+0x1e0/0x2c8\n\t\t\t\t\t\tkernfs_fop_read_iter+0x68/0x1b4\n\t\t\t\t\t\tseq_read_iter+0x158/0x4ec\n\t\t\t\t\t\tkernfs_seq_show+0x44/0x54\n\t\t\t\t\t\tsysfs_kf_seq_show+0xb4/0x130\n\t\t\t\t\t\tdev_attr_show+0x38/0x74\n\t\t\t\t\t\tbrightness_show+0x20/0x4c\n\t\t\t\t\t\tdualshock4_led_get_brightness+0xc/0x74\n\n[ 3313.874295][ T4013] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000060\n[ 3313.874301][ T4013] Mem abort info:\n[ 3313.874303][ T4013]   ESR = 0x0000000096000006\n[ 3313.874305][ T4013]   EC = 0x25: DABT (current EL), IL = 32 bits\n[ 3313.874307][ T4013]   SET = 0, FnV = 0\n[ 3313.874309][ T4013]   EA = 0, S1PTW = 0\n[ 3313.874311][ T4013]   FSC = 0x06: level 2 translation fault\n[ 3313.874313][ T4013] Data abort info:\n[ 3313.874314][ T4013]   ISV = 0, ISS = 0x00000006, ISS2 = 0x00000000\n[ 3313.874316][ T4013]   CM = 0, WnR = 0, TnD = 0, TagAccess = 0\n[ 3313.874318][ T4013]   GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0\n[ 3313.874320][ T4013] user pgtable: 4k pages, 39-bit VAs, pgdp=00000008f2b0a000\n..\n\n[ 3313.874332][ T4013] Dumping ftrace buffer:\n[ 3313.874334][ T4013]    (ftrace buffer empty)\n..\n..\n[ dd3313.874639][ T4013] CPU: 6 PID: 4013 Comm: InputReader\n[ 3313.874648][ T4013] pc : dualshock4_led_get_brightness+0xc/0x74\n[ 3313.874653][ T4013] lr : led_update_brightness+0x38/0x60\n[ 3313.874656][ T4013] sp : ffffffc0b910bbd0\n..\n..\n[ 3313.874685][ T4013] Call trace:\n[ 3313.874687][ T4013]  dualshock4_led_get_brightness+0xc/0x74\n[ 3313.874690][ T4013]  brightness_show+0x20/0x4c\n[ 3313.874692][ T4013]  dev_attr_show+0x38/0x74\n[ 3313.874696][ T4013]  sysfs_kf_seq_show+0xb4/0x130\n[ 3313.874700][ T4013]  kernfs_seq_show+0x44/0x54\n[ 3313.874703][ T4013]  seq_read_iter+0x158/0x4ec\n[ 3313.874705][ T4013]  kernfs_fop_read_iter+0x68/0x1b4\n[ 3313.874708][ T4013]  vfs_read+0x1e0/0x2c8\n[ 3313.874711][ T4013]  ksys_read+0x78/0xe8\n[ 3313.874714][ T4013]  __arm64_sys_read+0x1c/0x2c\n[ 3313.874718][ T4013]  invoke_syscall+0x58/0x114\n[ 3313.874721][ T4013]  el0_svc_common+0x80/0xe0\n[ 3313.874724][ T4013]  do_el0_svc+0x1c/0x28\n[ 3313.874727][ T4013]  el0_svc+0x38/0x68\n[ 3313.874730][ T4013]  el0t_64_sync_handler+0x68/0xbc\n[ 3313.874732][ T4013]  el0t_64_sync+0x1a8/0x1ac"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T20:55:20.639Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/84b42d5b5fcd767c9b7f30b0b32065ed949fe804"
        },
        {
          "url": "https://git.kernel.org/stable/c/ddcfc5708da9972ac23a9121b3d819b0a53d6f21"
        },
        {
          "url": "https://git.kernel.org/stable/c/b8283d52ed15c02bb2eb9b1b8644dcc34f8e98f1"
        },
        {
          "url": "https://git.kernel.org/stable/c/50d9f68e4adf86901cbab1bd5b91f710aa9141b9"
        },
        {
          "url": "https://git.kernel.org/stable/c/f6d6fb563e4be245a17bc4261a4b294e8bf8a31e"
        },
        {
          "url": "https://git.kernel.org/stable/c/bb4a6236a430cfc3713f470f3a969f39d6d4ca25"
        },
        {
          "url": "https://git.kernel.org/stable/c/4ca7cd938725a4050dcd62ae9472e931d603118d"
        }
      ],
      "title": "leds: class: Protect brightness_show() with led_cdev-\u003eled_access mutex",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-56587",
    "datePublished": "2024-12-27T14:50:55.402Z",
    "dateReserved": "2024-12-27T14:03:06.002Z",
    "dateUpdated": "2026-05-11T20:55:20.639Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2024-56587",
      "date": "2026-09-15",
      "epss": "0.00254",
      "percentile": "0.17068"
    },
    "fkie_nvd": {
      "descriptions": "[{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nleds: class: Protect brightness_show() with led_cdev-\u003eled_access mutex\\n\\nThere is NULL pointer issue observed if from Process A where hid device\\nbeing added which results in adding a led_cdev addition and later a\\nanother call to access of led_cdev attribute from Process B can result\\nin NULL pointer issue.\\n\\nUse mutex led_cdev-\u003eled_access to protect access to led-\u003ecdev and its\\nattribute inside brightness_show() and max_brightness_show() and also\\nupdate the comment for mutex that it should be used to protect the led\\nclass device fields.\\n\\n\\tProcess A \\t\\t\\t\\tProcess B\\n\\n kthread+0x114\\n worker_thread+0x244\\n process_scheduled_works+0x248\\n uhid_device_add_worker+0x24\\n hid_add_device+0x120\\n device_add+0x268\\n bus_probe_device+0x94\\n device_initial_probe+0x14\\n __device_attach+0xfc\\n bus_for_each_drv+0x10c\\n __device_attach_driver+0x14c\\n driver_probe_device+0x3c\\n __driver_probe_device+0xa0\\n really_probe+0x190\\n hid_device_probe+0x130\\n ps_probe+0x990\\n ps_led_register+0x94\\n devm_led_classdev_register_ext+0x58\\n led_classdev_register_ext+0x1f8\\n device_create_with_groups+0x48\\n device_create_groups_vargs+0xc8\\n device_add+0x244\\n kobject_uevent+0x14\\n kobject_uevent_env[jt]+0x224\\n mutex_unlock[jt]+0xc4\\n __mutex_unlock_slowpath+0xd4\\n wake_up_q+0x70\\n try_to_wake_up[jt]+0x48c\\n preempt_schedule_common+0x28\\n __schedule+0x628\\n __switch_to+0x174\\n\\t\\t\\t\\t\\t\\tel0t_64_sync+0x1a8/0x1ac\\n\\t\\t\\t\\t\\t\\tel0t_64_sync_handler+0x68/0xbc\\n\\t\\t\\t\\t\\t\\tel0_svc+0x38/0x68\\n\\t\\t\\t\\t\\t\\tdo_el0_svc+0x1c/0x28\\n\\t\\t\\t\\t\\t\\tel0_svc_common+0x80/0xe0\\n\\t\\t\\t\\t\\t\\tinvoke_syscall+0x58/0x114\\n\\t\\t\\t\\t\\t\\t__arm64_sys_read+0x1c/0x2c\\n\\t\\t\\t\\t\\t\\tksys_read+0x78/0xe8\\n\\t\\t\\t\\t\\t\\tvfs_read+0x1e0/0x2c8\\n\\t\\t\\t\\t\\t\\tkernfs_fop_read_iter+0x68/0x1b4\\n\\t\\t\\t\\t\\t\\tseq_read_iter+0x158/0x4ec\\n\\t\\t\\t\\t\\t\\tkernfs_seq_show+0x44/0x54\\n\\t\\t\\t\\t\\t\\tsysfs_kf_seq_show+0xb4/0x130\\n\\t\\t\\t\\t\\t\\tdev_attr_show+0x38/0x74\\n\\t\\t\\t\\t\\t\\tbrightness_show+0x20/0x4c\\n\\t\\t\\t\\t\\t\\tdualshock4_led_get_brightness+0xc/0x74\\n\\n[ 3313.874295][ T4013] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000060\\n[ 3313.874301][ T4013] Mem abort info:\\n[ 3313.874303][ T4013]   ESR = 0x0000000096000006\\n[ 3313.874305][ T4013]   EC = 0x25: DABT (current EL), IL = 32 bits\\n[ 3313.874307][ T4013]   SET = 0, FnV = 0\\n[ 3313.874309][ T4013]   EA = 0, S1PTW = 0\\n[ 3313.874311][ T4013]   FSC = 0x06: level 2 translation fault\\n[ 3313.874313][ T4013] Data abort info:\\n[ 3313.874314][ T4013]   ISV = 0, ISS = 0x00000006, ISS2 = 0x00000000\\n[ 3313.874316][ T4013]   CM = 0, WnR = 0, TnD = 0, TagAccess = 0\\n[ 3313.874318][ T4013]   GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0\\n[ 3313.874320][ T4013] user pgtable: 4k pages, 39-bit VAs, pgdp=00000008f2b0a000\\n..\\n\\n[ 3313.874332][ T4013] Dumping ftrace buffer:\\n[ 3313.874334][ T4013]    (ftrace buffer empty)\\n..\\n..\\n[ dd3313.874639][ T4013] CPU: 6 PID: 4013 Comm: InputReader\\n[ 3313.874648][ T4013] pc : dualshock4_led_get_brightness+0xc/0x74\\n[ 3313.874653][ T4013] lr : led_update_brightness+0x38/0x60\\n[ 3313.874656][ T4013] sp : ffffffc0b910bbd0\\n..\\n..\\n[ 3313.874685][ T4013] Call trace:\\n[ 3313.874687][ T4013]  dualshock4_led_get_brightness+0xc/0x74\\n[ 3313.874690][ T4013]  brightness_show+0x20/0x4c\\n[ 3313.874692][ T4013]  dev_attr_show+0x38/0x74\\n[ 3313.874696][ T4013]  sysfs_kf_seq_show+0xb4/0x130\\n[ 3313.874700][ T4013]  kernfs_seq_show+0x44/0x54\\n[ 3313.874703][ T4013]  seq_read_iter+0x158/0x4ec\\n[ 3313.874705][ T4013]  kernfs_fop_read_iter+0x68/0x1b4\\n[ 3313.874708][ T4013]  vfs_read+0x1e0/0x2c8\\n[ 3313.874711][ T4013]  ksys_read+0x78/0xe8\\n[ 3313.874714][ T4013]  __arm64_sys_read+0x1c/0x2c\\n[ 3313.874718][ T4013]  invoke_syscall+0x58/0x114\\n[ 3313.874721][ T4013]  el0_svc_common+0x80/0xe0\\n[ 3313.874724][ T4013]  do_el0_svc+0x1c/0x28\\n[ 3313.874727][ T4013]  el0_svc+0x38/0x68\\n[ 3313.874730][ T4013]  el0t_64_sync_handler+0x68/0xbc\\n[ 3313.874732][ T4013]  el0t_64_sync+0x1a8/0x1ac\"}, {\"lang\": \"es\", \"value\": \"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: leds: clase: Proteger illumination_show() con led_cdev-\u0026gt;led_access mutex Se observa un problema de puntero NULL si desde el Proceso A se agrega el dispositivo hid, lo que da como resultado la adici\\u00f3n de una adici\\u00f3n led_cdev y luego otra llamada para acceder al atributo led_cdev desde el Proceso B puede resultar en un problema de puntero NULL. Use mutex led_cdev-\u0026gt;led_access para proteger el acceso a led-\u0026gt;cdev y su atributo dentro de illumination_show() y max_brightness_show() y tambi\\u00e9n actualice el comentario para mutex que debe usarse para proteger los campos del dispositivo de clase led. Proceso A Proceso B kthread+0x114 worker_thread+0x244 process_scheduled_works+0x248 uhid_device_add_worker+0x24 hid_add_device+0x120 device_add+0x268 bus_probe_device+0x94 device_initial_probe+0x14 __device_attach+0xfc bus_for_each_drv+0x10c __device_attach_driver+0x14c driver_probe_device+0x3c __driver_probe_device+0xa0 really_probe+0x190 hid_device_probe+0x130 ps_probe+0x990 ps_led_register+0x94 devm_led_classdev_register_ext+0x58 led_classdev_register_ext+0x1f8 dispositivo_crear_con_grupos+0x48 dispositivo_crear_grupos_vargs+0xc8 dispositivo_agregar+0x244 kobject_uevent+0x14 kobject_uevent_env[jt]+0x224 mutex_unlock[jt]+0xc4 __mutex_unlock_slowpath+0xd4 wake_up_q+0x70 intento_de_activar[jt]+0x48c preempt_schedule_common+0x28 __schedule+0x628 __switch_to+0x174 el0t_64_sync+0x1a8/0x1ac el0t_64_sync_handler+0x68/0xbc el0_svc+0x38/0x68 do_el0_svc+0x1c/0x28 el0_svc_common+0x80/0xe0 invocar_syscall+0x58/0x114 __arm64_sys_read+0x1c/0x2c ksys_read+0x78/0xe8 vfs_read+0x1e0/0x2c8 kernfs_fop_read_iter+0x68/0x1b4 seq_read_iter+0x158/0x4ec kernfs_seq_show+0x44/0x54 sysfs_kf_seq_show+0xb4/0x130 dev_attr_show+0x38/0x74 brillo_show+0x20/0x4c dualshock4_led_get_brillo+0xc/0x74 [ 3313.874295][ T4013] No se puede gestionar la desreferencia del puntero NULL del n\\u00facleo en la direcci\\u00f3n virtual 0000000000000060 [ 3313.874301][ T4013] Informaci\\u00f3n de aborto de memoria: [ 3313.874303][ T4013] ESR = 0x0000000096000006 [ 3313.874305][ T4013] EC = 0x25: DABT (EL actual), IL = 32 bits [ 3313.874307][ T4013] SET = 0, FnV = 0 [ 3313.874309][ T4013] EA = 0, S1PTW = 0 [ 3313.874311][ T4013] FSC = 0x06: error de traducci\\u00f3n de nivel 2 [ 3313.874313][ T4013] Informaci\\u00f3n de cancelaci\\u00f3n de datos: [ 3313.874314][ T4013] ISV = 0, ISS = 0x00000006, ISS2 = 0x00000000 [ 3313.874316][ T4013] CM = 0, WnR = 0, TnD = 0, TagAccess = 0 [ 3313.874318][ T4013] GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0 [ 3313.874320][ T4013] pgtable de usuario: p\\u00e1ginas de 4k, VA de 39 bits, pgdp=00000008f2b0a000 .. [ 3313.874332][ T4013] Volcando b\\u00fafer ftrace: [ 3313.874334][ T4013] (b\\u00fafer ftrace vac\\u00edo) .. .. [ dd3313.874639][ T4013] CPU: 6 PID: 4013 Comm: InputReader [ 3313.874648][ T4013] pc : dualshock4_led_get_brightness+0xc/0x74 [ 3313.874653][ T4013] lr : led_update_brightness+0x38/0x60 [ 3313.874656][ T4013] sp : ffffffc0b910bbd0 .. .. [ 3313.874685][ T4013] Rastreo de llamadas: [ 3313.874687][ T4013] dualshock4_led_get_brightness+0xc/0x74 [ 3313.874690][ T4013] brillo_show+0x20/0x4c [ 3313.874692][ T4013] dev_attr_show+0x38/0x74 [ 3313.874696][ T4013] sysfs_kf_seq_show+0xb4/0x130 [ 3313.874700][ T4013] kernfs_seq_show+0x44/0x54 [ 3313.874703][ T4013] seq_read_iter+0x158/0x4ec [ 3313.874705][ T4013] kernfs_fop_read_iter+0x68/0x1b4 [ 3313.874708][ T4013] vfs_read+0x1e0/0x2c8 [ 3313.874711][ T4013] ksys_read+0x78/0xe8 [ 3313.874714][ T4013] __arm64_sys_read+0x1c/0x2c [ 3313.874718][ T4013] invocar_llamada_al_sistema+0x58/0x114 [ 3313.874721][ T4013] el0_svc_common+0x80/0xe0 [ 3313.874724][ T4013] do_el0_svc+0x1c/0x28 [ 3313.874727][ T4013] el0_svc+0x38/0x68 [ 3313.874730][ T4013] el0t_64_sync_handler+0x68/0xbc [ 3313.874732][ T4013] el0t_64_sync+0x1a8/0x1ac\"}]",
      "id": "CVE-2024-56587",
      "lastModified": "2024-12-27T15:15:17.917",
      "published": "2024-12-27T15:15:17.917",
      "references": "[{\"url\": \"https://git.kernel.org/stable/c/4ca7cd938725a4050dcd62ae9472e931d603118d\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}, {\"url\": \"https://git.kernel.org/stable/c/50d9f68e4adf86901cbab1bd5b91f710aa9141b9\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}, {\"url\": \"https://git.kernel.org/stable/c/84b42d5b5fcd767c9b7f30b0b32065ed949fe804\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}, {\"url\": \"https://git.kernel.org/stable/c/b8283d52ed15c02bb2eb9b1b8644dcc34f8e98f1\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}, {\"url\": \"https://git.kernel.org/stable/c/bb4a6236a430cfc3713f470f3a969f39d6d4ca25\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}, {\"url\": \"https://git.kernel.org/stable/c/ddcfc5708da9972ac23a9121b3d819b0a53d6f21\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}, {\"url\": \"https://git.kernel.org/stable/c/f6d6fb563e4be245a17bc4261a4b294e8bf8a31e\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]",
      "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "vulnStatus": "Awaiting Analysis"
    },
    "microsoft_vex": {
      "current_release_date": "2025-03-13T00:00:00.000Z",
      "cve": "CVE-2024-56587",
      "id": "msrc_CVE-2024-56587",
      "initial_release_date": "2024-12-02T00:00:00.000Z",
      "product_status:fixed": "4",
      "product_status:known_affected": "4",
      "source": "Microsoft CSAF VEX",
      "status": "final",
      "title": "leds: class: Protect brightness_show() with led_cdev-\u003eled_access mutex",
      "url": "https://msrc.microsoft.com/csaf/vex/2024/msrc_cve-2024-56587.json",
      "version": "2"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2024-56587\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-12-27T15:15:17.917\",\"lastModified\":\"2026-06-17T08:12:28.863\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nleds: class: Protect brightness_show() with led_cdev-\u003eled_access mutex\\n\\nThere is NULL pointer issue observed if from Process A where hid device\\nbeing added which results in adding a led_cdev addition and later a\\nanother call to access of led_cdev attribute from Process B can result\\nin NULL pointer issue.\\n\\nUse mutex led_cdev-\u003eled_access to protect access to led-\u003ecdev and its\\nattribute inside brightness_show() and max_brightness_show() and also\\nupdate the comment for mutex that it should be used to protect the led\\nclass device fields.\\n\\n\\tProcess A \\t\\t\\t\\tProcess B\\n\\n kthread+0x114\\n worker_thread+0x244\\n process_scheduled_works+0x248\\n uhid_device_add_worker+0x24\\n hid_add_device+0x120\\n device_add+0x268\\n bus_probe_device+0x94\\n device_initial_probe+0x14\\n __device_attach+0xfc\\n bus_for_each_drv+0x10c\\n __device_attach_driver+0x14c\\n driver_probe_device+0x3c\\n __driver_probe_device+0xa0\\n really_probe+0x190\\n hid_device_probe+0x130\\n ps_probe+0x990\\n ps_led_register+0x94\\n devm_led_classdev_register_ext+0x58\\n led_classdev_register_ext+0x1f8\\n device_create_with_groups+0x48\\n device_create_groups_vargs+0xc8\\n device_add+0x244\\n kobject_uevent+0x14\\n kobject_uevent_env[jt]+0x224\\n mutex_unlock[jt]+0xc4\\n __mutex_unlock_slowpath+0xd4\\n wake_up_q+0x70\\n try_to_wake_up[jt]+0x48c\\n preempt_schedule_common+0x28\\n __schedule+0x628\\n __switch_to+0x174\\n\\t\\t\\t\\t\\t\\tel0t_64_sync+0x1a8/0x1ac\\n\\t\\t\\t\\t\\t\\tel0t_64_sync_handler+0x68/0xbc\\n\\t\\t\\t\\t\\t\\tel0_svc+0x38/0x68\\n\\t\\t\\t\\t\\t\\tdo_el0_svc+0x1c/0x28\\n\\t\\t\\t\\t\\t\\tel0_svc_common+0x80/0xe0\\n\\t\\t\\t\\t\\t\\tinvoke_syscall+0x58/0x114\\n\\t\\t\\t\\t\\t\\t__arm64_sys_read+0x1c/0x2c\\n\\t\\t\\t\\t\\t\\tksys_read+0x78/0xe8\\n\\t\\t\\t\\t\\t\\tvfs_read+0x1e0/0x2c8\\n\\t\\t\\t\\t\\t\\tkernfs_fop_read_iter+0x68/0x1b4\\n\\t\\t\\t\\t\\t\\tseq_read_iter+0x158/0x4ec\\n\\t\\t\\t\\t\\t\\tkernfs_seq_show+0x44/0x54\\n\\t\\t\\t\\t\\t\\tsysfs_kf_seq_show+0xb4/0x130\\n\\t\\t\\t\\t\\t\\tdev_attr_show+0x38/0x74\\n\\t\\t\\t\\t\\t\\tbrightness_show+0x20/0x4c\\n\\t\\t\\t\\t\\t\\tdualshock4_led_get_brightness+0xc/0x74\\n\\n[ 3313.874295][ T4013] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000060\\n[ 3313.874301][ T4013] Mem abort info:\\n[ 3313.874303][ T4013]   ESR = 0x0000000096000006\\n[ 3313.874305][ T4013]   EC = 0x25: DABT (current EL), IL = 32 bits\\n[ 3313.874307][ T4013]   SET = 0, FnV = 0\\n[ 3313.874309][ T4013]   EA = 0, S1PTW = 0\\n[ 3313.874311][ T4013]   FSC = 0x06: level 2 translation fault\\n[ 3313.874313][ T4013] Data abort info:\\n[ 3313.874314][ T4013]   ISV = 0, ISS = 0x00000006, ISS2 = 0x00000000\\n[ 3313.874316][ T4013]   CM = 0, WnR = 0, TnD = 0, TagAccess = 0\\n[ 3313.874318][ T4013]   GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0\\n[ 3313.874320][ T4013] user pgtable: 4k pages, 39-bit VAs, pgdp=00000008f2b0a000\\n..\\n\\n[ 3313.874332][ T4013] Dumping ftrace buffer:\\n[ 3313.874334][ T4013]    (ftrace buffer empty)\\n..\\n..\\n[ dd3313.874639][ T4013] CPU: 6 PID: 4013 Comm: InputReader\\n[ 3313.874648][ T4013] pc : dualshock4_led_get_brightness+0xc/0x74\\n[ 3313.874653][ T4013] lr : led_update_brightness+0x38/0x60\\n[ 3313.874656][ T4013] sp : ffffffc0b910bbd0\\n..\\n..\\n[ 3313.874685][ T4013] Call trace:\\n[ 3313.874687][ T4013]  dualshock4_led_get_brightness+0xc/0x74\\n[ 3313.874690][ T4013]  brightness_show+0x20/0x4c\\n[ 3313.874692][ T4013]  dev_attr_show+0x38/0x74\\n[ 3313.874696][ T4013]  sysfs_kf_seq_show+0xb4/0x130\\n[ 3313.874700][ T4013]  kernfs_seq_show+0x44/0x54\\n[ 3313.874703][ T4013]  seq_read_iter+0x158/0x4ec\\n[ 3313.874705][ T4013]  kernfs_fop_read_iter+0x68/0x1b4\\n[ 3313.874708][ T4013]  vfs_read+0x1e0/0x2c8\\n[ 3313.874711][ T4013]  ksys_read+0x78/0xe8\\n[ 3313.874714][ T4013]  __arm64_sys_read+0x1c/0x2c\\n[ 3313.874718][ T4013]  invoke_syscall+0x58/0x114\\n[ 3313.874721][ T4013]  el0_svc_common+0x80/0xe0\\n[ 3313.874724][ T4013]  do_el0_svc+0x1c/0x28\\n[ 3313.874727][ T4013]  el0_svc+0x38/0x68\\n[ 3313.874730][ T4013]  el0t_64_sync_handler+0x68/0xbc\\n[ 3313.874732][ T4013]  el0t_64_sync+0x1a8/0x1ac\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: leds: clase: Proteger illumination_show() con led_cdev-\u0026gt;led_access mutex Se observa un problema de puntero NULL si desde el Proceso A se agrega el dispositivo hid, lo que da como resultado la adici\u00f3n de una adici\u00f3n led_cdev y luego otra llamada para acceder al atributo led_cdev desde el Proceso B puede resultar en un problema de puntero NULL. Use mutex led_cdev-\u0026gt;led_access para proteger el acceso a led-\u0026gt;cdev y su atributo dentro de illumination_show() y max_brightness_show() y tambi\u00e9n actualice el comentario para mutex que debe usarse para proteger los campos del dispositivo de clase led. Proceso A Proceso B kthread+0x114 worker_thread+0x244 process_scheduled_works+0x248 uhid_device_add_worker+0x24 hid_add_device+0x120 device_add+0x268 bus_probe_device+0x94 device_initial_probe+0x14 __device_attach+0xfc bus_for_each_drv+0x10c __device_attach_driver+0x14c driver_probe_device+0x3c __driver_probe_device+0xa0 really_probe+0x190 hid_device_probe+0x130 ps_probe+0x990 ps_led_register+0x94 devm_led_classdev_register_ext+0x58 led_classdev_register_ext+0x1f8 dispositivo_crear_con_grupos+0x48 dispositivo_crear_grupos_vargs+0xc8 dispositivo_agregar+0x244 kobject_uevent+0x14 kobject_uevent_env[jt]+0x224 mutex_unlock[jt]+0xc4 __mutex_unlock_slowpath+0xd4 wake_up_q+0x70 intento_de_activar[jt]+0x48c preempt_schedule_common+0x28 __schedule+0x628 __switch_to+0x174 el0t_64_sync+0x1a8/0x1ac el0t_64_sync_handler+0x68/0xbc el0_svc+0x38/0x68 do_el0_svc+0x1c/0x28 el0_svc_common+0x80/0xe0 invocar_syscall+0x58/0x114 __arm64_sys_read+0x1c/0x2c ksys_read+0x78/0xe8 vfs_read+0x1e0/0x2c8 kernfs_fop_read_iter+0x68/0x1b4 seq_read_iter+0x158/0x4ec kernfs_seq_show+0x44/0x54 sysfs_kf_seq_show+0xb4/0x130 dev_attr_show+0x38/0x74 brillo_show+0x20/0x4c dualshock4_led_get_brillo+0xc/0x74 [ 3313.874295][ T4013] No se puede gestionar la desreferencia del puntero NULL del n\u00facleo en la direcci\u00f3n virtual 0000000000000060 [ 3313.874301][ T4013] Informaci\u00f3n de aborto de memoria: [ 3313.874303][ T4013] ESR = 0x0000000096000006 [ 3313.874305][ T4013] EC = 0x25: DABT (EL actual), IL = 32 bits [ 3313.874307][ T4013] SET = 0, FnV = 0 [ 3313.874309][ T4013] EA = 0, S1PTW = 0 [ 3313.874311][ T4013] FSC = 0x06: error de traducci\u00f3n de nivel 2 [ 3313.874313][ T4013] Informaci\u00f3n de cancelaci\u00f3n de datos: [ 3313.874314][ T4013] ISV = 0, ISS = 0x00000006, ISS2 = 0x00000000 [ 3313.874316][ T4013] CM = 0, WnR = 0, TnD = 0, TagAccess = 0 [ 3313.874318][ T4013] GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0 [ 3313.874320][ T4013] pgtable de usuario: p\u00e1ginas de 4k, VA de 39 bits, pgdp=00000008f2b0a000 .. [ 3313.874332][ T4013] Volcando b\u00fafer ftrace: [ 3313.874334][ T4013] (b\u00fafer ftrace vac\u00edo) .. .. [ dd3313.874639][ T4013] CPU: 6 PID: 4013 Comm: InputReader [ 3313.874648][ T4013] pc : dualshock4_led_get_brightness+0xc/0x74 [ 3313.874653][ T4013] lr : led_update_brightness+0x38/0x60 [ 3313.874656][ T4013] sp : ffffffc0b910bbd0 .. .. [ 3313.874685][ T4013] Rastreo de llamadas: [ 3313.874687][ T4013] dualshock4_led_get_brightness+0xc/0x74 [ 3313.874690][ T4013] brillo_show+0x20/0x4c [ 3313.874692][ T4013] dev_attr_show+0x38/0x74 [ 3313.874696][ T4013] sysfs_kf_seq_show+0xb4/0x130 [ 3313.874700][ T4013] kernfs_seq_show+0x44/0x54 [ 3313.874703][ T4013] seq_read_iter+0x158/0x4ec [ 3313.874705][ T4013] kernfs_fop_read_iter+0x68/0x1b4 [ 3313.874708][ T4013] vfs_read+0x1e0/0x2c8 [ 3313.874711][ T4013] ksys_read+0x78/0xe8 [ 3313.874714][ T4013] __arm64_sys_read+0x1c/0x2c [ 3313.874718][ T4013] invocar_llamada_al_sistema+0x58/0x114 [ 3313.874721][ T4013] el0_svc_common+0x80/0xe0 [ 3313.874724][ T4013] do_el0_svc+0x1c/0x28 [ 3313.874727][ T4013] el0_svc+0x38/0x68 [ 3313.874730][ T4013] el0t_64_sync_handler+0x68/0xbc [ 3313.874732][ T4013] el0t_64_sync+0x1a8/0x1ac\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"drivers/leds/led-class.c\",\"include/linux/leds.h\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"29d76dfa29fe22583aefddccda0bc56aa81035dc\",\"lessThan\":\"84b42d5b5fcd767c9b7f30b0b32065ed949fe804\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"29d76dfa29fe22583aefddccda0bc56aa81035dc\",\"lessThan\":\"ddcfc5708da9972ac23a9121b3d819b0a53d6f21\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"29d76dfa29fe22583aefddccda0bc56aa81035dc\",\"lessThan\":\"b8283d52ed15c02bb2eb9b1b8644dcc34f8e98f1\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"29d76dfa29fe22583aefddccda0bc56aa81035dc\",\"lessThan\":\"50d9f68e4adf86901cbab1bd5b91f710aa9141b9\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"29d76dfa29fe22583aefddccda0bc56aa81035dc\",\"lessThan\":\"f6d6fb563e4be245a17bc4261a4b294e8bf8a31e\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"29d76dfa29fe22583aefddccda0bc56aa81035dc\",\"lessThan\":\"bb4a6236a430cfc3713f470f3a969f39d6d4ca25\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"29d76dfa29fe22583aefddccda0bc56aa81035dc\",\"lessThan\":\"4ca7cd938725a4050dcd62ae9472e931d603118d\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"drivers/leds/led-class.c\",\"include/linux/leds.h\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"2.6.26\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"2.6.26\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.4.287\",\"lessThanOrEqual\":\"5.4.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.10.231\",\"lessThanOrEqual\":\"5.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.174\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.120\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.6.66\",\"lessThanOrEqual\":\"6.6.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.12.5\",\"lessThanOrEqual\":\"6.12.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.13\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"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:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6},{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2025-10-01T20:01:43.486351Z\",\"id\":\"CVE-2024-56587\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-476\"}]},{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-476\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"5.4.287\",\"matchCriteriaId\":\"DC7D5C80-B677-4131-A399-3366D7F3961C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.5\",\"versionEndExcluding\":\"5.10.231\",\"matchCriteriaId\":\"B5C644CC-2BD7-4E32-BC54-8DCC7ABE9935\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.15.174\",\"matchCriteriaId\":\"419FD073-1517-4FD5-8158-F94BC68A1E89\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"6.1.120\",\"matchCriteriaId\":\"09AC6122-E2A4-40FE-9D33-268A1B2EC265\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.2\",\"versionEndExcluding\":\"6.6.66\",\"matchCriteriaId\":\"29A976AD-B9AB-4A95-9F08-7669F8847EB9\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7\",\"versionEndExcluding\":\"6.12.5\",\"matchCriteriaId\":\"9501D045-7A94-42CA-8B03-821BE94A65B7\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/4ca7cd938725a4050dcd62ae9472e931d603118d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/50d9f68e4adf86901cbab1bd5b91f710aa9141b9\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/84b42d5b5fcd767c9b7f30b0b32065ed949fe804\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/b8283d52ed15c02bb2eb9b1b8644dcc34f8e98f1\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/bb4a6236a430cfc3713f470f3a969f39d6d4ca25\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/ddcfc5708da9972ac23a9121b3d819b0a53d6f21\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/f6d6fb563e4be245a17bc4261a4b294e8bf8a31e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}",
    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2025-11-21T13:54:25+00:00",
      "cve": "CVE-2024-56587",
      "id": "CVE-2024-56587",
      "initial_release_date": "2024-12-27T00:00:00+00:00",
      "product_status:known_affected": "198",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: leds: class: Protect brightness_show() with led_cdev-\u003eled_access mutex",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-56587.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-11T16:41:39Z",
      "cve": "CVE-2024-56587",
      "id": "CVE-2024-56587",
      "initial_release_date": "2025-01-07T03:49:13Z",
      "product_status:known_affected": "809",
      "product_status:known_not_affected": "28",
      "product_status:recommended": "398",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2024-56587",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2024-56587.json",
      "version": "64"
    },
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html\"}, {\"url\": \"https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html\"}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2025-11-03T20:50:09.706Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 5.5, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"NONE\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2024-56587\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-10-01T20:01:43.486351Z\"}}}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-476\", \"description\": \"CWE-476 NULL Pointer Dereference\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-10-01T15:42:25.251Z\"}}], \"cna\": {\"title\": \"leds: class: Protect brightness_show() with led_cdev-\u003eled_access mutex\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"29d76dfa29fe22583aefddccda0bc56aa81035dc\", \"lessThan\": \"84b42d5b5fcd767c9b7f30b0b32065ed949fe804\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"29d76dfa29fe22583aefddccda0bc56aa81035dc\", \"lessThan\": \"ddcfc5708da9972ac23a9121b3d819b0a53d6f21\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"29d76dfa29fe22583aefddccda0bc56aa81035dc\", \"lessThan\": \"b8283d52ed15c02bb2eb9b1b8644dcc34f8e98f1\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"29d76dfa29fe22583aefddccda0bc56aa81035dc\", \"lessThan\": \"50d9f68e4adf86901cbab1bd5b91f710aa9141b9\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"29d76dfa29fe22583aefddccda0bc56aa81035dc\", \"lessThan\": \"f6d6fb563e4be245a17bc4261a4b294e8bf8a31e\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"29d76dfa29fe22583aefddccda0bc56aa81035dc\", \"lessThan\": \"bb4a6236a430cfc3713f470f3a969f39d6d4ca25\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"29d76dfa29fe22583aefddccda0bc56aa81035dc\", \"lessThan\": \"4ca7cd938725a4050dcd62ae9472e931d603118d\", \"versionType\": \"git\"}], \"programFiles\": [\"drivers/leds/led-class.c\", \"include/linux/leds.h\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"2.6.26\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"2.6.26\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"5.4.287\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.231\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.174\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.120\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6.66\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.12.5\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.12.*\"}, {\"status\": \"unaffected\", \"version\": \"6.13\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/leds/led-class.c\", \"include/linux/leds.h\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/84b42d5b5fcd767c9b7f30b0b32065ed949fe804\"}, {\"url\": \"https://git.kernel.org/stable/c/ddcfc5708da9972ac23a9121b3d819b0a53d6f21\"}, {\"url\": \"https://git.kernel.org/stable/c/b8283d52ed15c02bb2eb9b1b8644dcc34f8e98f1\"}, {\"url\": \"https://git.kernel.org/stable/c/50d9f68e4adf86901cbab1bd5b91f710aa9141b9\"}, {\"url\": \"https://git.kernel.org/stable/c/f6d6fb563e4be245a17bc4261a4b294e8bf8a31e\"}, {\"url\": \"https://git.kernel.org/stable/c/bb4a6236a430cfc3713f470f3a969f39d6d4ca25\"}, {\"url\": \"https://git.kernel.org/stable/c/4ca7cd938725a4050dcd62ae9472e931d603118d\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nleds: class: Protect brightness_show() with led_cdev-\u003eled_access mutex\\n\\nThere is NULL pointer issue observed if from Process A where hid device\\nbeing added which results in adding a led_cdev addition and later a\\nanother call to access of led_cdev attribute from Process B can result\\nin NULL pointer issue.\\n\\nUse mutex led_cdev-\u003eled_access to protect access to led-\u003ecdev and its\\nattribute inside brightness_show() and max_brightness_show() and also\\nupdate the comment for mutex that it should be used to protect the led\\nclass device fields.\\n\\n\\tProcess A \\t\\t\\t\\tProcess B\\n\\n kthread+0x114\\n worker_thread+0x244\\n process_scheduled_works+0x248\\n uhid_device_add_worker+0x24\\n hid_add_device+0x120\\n device_add+0x268\\n bus_probe_device+0x94\\n device_initial_probe+0x14\\n __device_attach+0xfc\\n bus_for_each_drv+0x10c\\n __device_attach_driver+0x14c\\n driver_probe_device+0x3c\\n __driver_probe_device+0xa0\\n really_probe+0x190\\n hid_device_probe+0x130\\n ps_probe+0x990\\n ps_led_register+0x94\\n devm_led_classdev_register_ext+0x58\\n led_classdev_register_ext+0x1f8\\n device_create_with_groups+0x48\\n device_create_groups_vargs+0xc8\\n device_add+0x244\\n kobject_uevent+0x14\\n kobject_uevent_env[jt]+0x224\\n mutex_unlock[jt]+0xc4\\n __mutex_unlock_slowpath+0xd4\\n wake_up_q+0x70\\n try_to_wake_up[jt]+0x48c\\n preempt_schedule_common+0x28\\n __schedule+0x628\\n __switch_to+0x174\\n\\t\\t\\t\\t\\t\\tel0t_64_sync+0x1a8/0x1ac\\n\\t\\t\\t\\t\\t\\tel0t_64_sync_handler+0x68/0xbc\\n\\t\\t\\t\\t\\t\\tel0_svc+0x38/0x68\\n\\t\\t\\t\\t\\t\\tdo_el0_svc+0x1c/0x28\\n\\t\\t\\t\\t\\t\\tel0_svc_common+0x80/0xe0\\n\\t\\t\\t\\t\\t\\tinvoke_syscall+0x58/0x114\\n\\t\\t\\t\\t\\t\\t__arm64_sys_read+0x1c/0x2c\\n\\t\\t\\t\\t\\t\\tksys_read+0x78/0xe8\\n\\t\\t\\t\\t\\t\\tvfs_read+0x1e0/0x2c8\\n\\t\\t\\t\\t\\t\\tkernfs_fop_read_iter+0x68/0x1b4\\n\\t\\t\\t\\t\\t\\tseq_read_iter+0x158/0x4ec\\n\\t\\t\\t\\t\\t\\tkernfs_seq_show+0x44/0x54\\n\\t\\t\\t\\t\\t\\tsysfs_kf_seq_show+0xb4/0x130\\n\\t\\t\\t\\t\\t\\tdev_attr_show+0x38/0x74\\n\\t\\t\\t\\t\\t\\tbrightness_show+0x20/0x4c\\n\\t\\t\\t\\t\\t\\tdualshock4_led_get_brightness+0xc/0x74\\n\\n[ 3313.874295][ T4013] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000060\\n[ 3313.874301][ T4013] Mem abort info:\\n[ 3313.874303][ T4013]   ESR = 0x0000000096000006\\n[ 3313.874305][ T4013]   EC = 0x25: DABT (current EL), IL = 32 bits\\n[ 3313.874307][ T4013]   SET = 0, FnV = 0\\n[ 3313.874309][ T4013]   EA = 0, S1PTW = 0\\n[ 3313.874311][ T4013]   FSC = 0x06: level 2 translation fault\\n[ 3313.874313][ T4013] Data abort info:\\n[ 3313.874314][ T4013]   ISV = 0, ISS = 0x00000006, ISS2 = 0x00000000\\n[ 3313.874316][ T4013]   CM = 0, WnR = 0, TnD = 0, TagAccess = 0\\n[ 3313.874318][ T4013]   GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0\\n[ 3313.874320][ T4013] user pgtable: 4k pages, 39-bit VAs, pgdp=00000008f2b0a000\\n..\\n\\n[ 3313.874332][ T4013] Dumping ftrace buffer:\\n[ 3313.874334][ T4013]    (ftrace buffer empty)\\n..\\n..\\n[ dd3313.874639][ T4013] CPU: 6 PID: 4013 Comm: InputReader\\n[ 3313.874648][ T4013] pc : dualshock4_led_get_brightness+0xc/0x74\\n[ 3313.874653][ T4013] lr : led_update_brightness+0x38/0x60\\n[ 3313.874656][ T4013] sp : ffffffc0b910bbd0\\n..\\n..\\n[ 3313.874685][ T4013] Call trace:\\n[ 3313.874687][ T4013]  dualshock4_led_get_brightness+0xc/0x74\\n[ 3313.874690][ T4013]  brightness_show+0x20/0x4c\\n[ 3313.874692][ T4013]  dev_attr_show+0x38/0x74\\n[ 3313.874696][ T4013]  sysfs_kf_seq_show+0xb4/0x130\\n[ 3313.874700][ T4013]  kernfs_seq_show+0x44/0x54\\n[ 3313.874703][ T4013]  seq_read_iter+0x158/0x4ec\\n[ 3313.874705][ T4013]  kernfs_fop_read_iter+0x68/0x1b4\\n[ 3313.874708][ T4013]  vfs_read+0x1e0/0x2c8\\n[ 3313.874711][ T4013]  ksys_read+0x78/0xe8\\n[ 3313.874714][ T4013]  __arm64_sys_read+0x1c/0x2c\\n[ 3313.874718][ T4013]  invoke_syscall+0x58/0x114\\n[ 3313.874721][ T4013]  el0_svc_common+0x80/0xe0\\n[ 3313.874724][ T4013]  do_el0_svc+0x1c/0x28\\n[ 3313.874727][ T4013]  el0_svc+0x38/0x68\\n[ 3313.874730][ T4013]  el0t_64_sync_handler+0x68/0xbc\\n[ 3313.874732][ T4013]  el0t_64_sync+0x1a8/0x1ac\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.287\", \"versionStartIncluding\": \"2.6.26\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.231\", \"versionStartIncluding\": \"2.6.26\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.174\", \"versionStartIncluding\": \"2.6.26\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.120\", \"versionStartIncluding\": \"2.6.26\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.66\", \"versionStartIncluding\": \"2.6.26\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.12.5\", \"versionStartIncluding\": \"2.6.26\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.13\", \"versionStartIncluding\": \"2.6.26\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-01-05T10:55:52.017Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-56587\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-01-05T10:55:52.017Z\", \"dateReserved\": \"2024-12-27T14:03:06.002Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-12-27T14:50:55.402Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.