| { |
| "containers": { |
| "cna": { |
| "providerMetadata": { |
| "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038" |
| }, |
| "descriptions": [ |
| { |
| "lang": "en", |
| "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nleds: class: Protect brightness_show() with led_cdev->led_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->led_access to protect access to led->cdev 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" |
| } |
| ], |
| "affected": [ |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "unaffected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "drivers/leds/led-class.c", |
| "include/linux/leds.h" |
| ], |
| "versions": [ |
| { |
| "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", |
| "lessThan": "84b42d5b5fcd767c9b7f30b0b32065ed949fe804", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", |
| "lessThan": "ddcfc5708da9972ac23a9121b3d819b0a53d6f21", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", |
| "lessThan": "b8283d52ed15c02bb2eb9b1b8644dcc34f8e98f1", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", |
| "lessThan": "50d9f68e4adf86901cbab1bd5b91f710aa9141b9", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", |
| "lessThan": "f6d6fb563e4be245a17bc4261a4b294e8bf8a31e", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", |
| "lessThan": "bb4a6236a430cfc3713f470f3a969f39d6d4ca25", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", |
| "lessThan": "4ca7cd938725a4050dcd62ae9472e931d603118d", |
| "status": "affected", |
| "versionType": "git" |
| } |
| ] |
| }, |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "affected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "drivers/leds/led-class.c", |
| "include/linux/leds.h" |
| ], |
| "versions": [ |
| { |
| "version": "5.4.287", |
| "lessThanOrEqual": "5.4.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.10.231", |
| "lessThanOrEqual": "5.10.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.15.174", |
| "lessThanOrEqual": "5.15.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.1.120", |
| "lessThanOrEqual": "6.1.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.6.66", |
| "lessThanOrEqual": "6.6.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.12.5", |
| "lessThanOrEqual": "6.12.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.13", |
| "lessThanOrEqual": "*", |
| "status": "unaffected", |
| "versionType": "original_commit_for_fix" |
| } |
| ] |
| } |
| ], |
| "cpeApplicability": [ |
| { |
| "nodes": [ |
| { |
| "operator": "OR", |
| "negate": false, |
| "cpeMatch": [ |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionEndExcluding": "5.4.287" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionEndExcluding": "5.10.231" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionEndExcluding": "5.15.174" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionEndExcluding": "6.1.120" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionEndExcluding": "6.6.66" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionEndExcluding": "6.12.5" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionEndExcluding": "6.13" |
| } |
| ] |
| } |
| ] |
| } |
| ], |
| "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->led_access mutex", |
| "x_generator": { |
| "engine": "bippy-1.2.0" |
| } |
| } |
| }, |
| "cveMetadata": { |
| "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038", |
| "cveID": "CVE-2024-56587", |
| "requesterUserId": "gregkh@kernel.org", |
| "serial": "1", |
| "state": "PUBLISHED" |
| }, |
| "dataType": "CVE_RECORD", |
| "dataVersion": "5.0" |
| } |
