CVE-2024-56587

一、漏洞信息
 漏洞编号：[CVE-2024-56587](https://nvd.nist.gov/vuln/detail/CVE-2024-56587)
 漏洞归属组件：[kernel](https://gitee.com/src-openeuler/kernel)
 漏洞归属的版本：4.19.140,4.19.194,4.19.90,5.10.0,6.1.19,6.4.0,6.6.0
 CVSS V3.0分值：
  BaseScore：5.5 Medium
  Vector：CVSS：3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
 漏洞简述：
  In the Linux kernel, the following vulnerability has been resolved:leds: class: Protect brightness_show() with led_cdev->led_access mutexThere is NULL pointer issue observed if from Process A where hid devicebeing added which results in adding a led_cdev addition and later aanother call to access of led_cdev attribute from Process B can resultin NULL pointer issue.Use mutex led_cdev->led_access to protect access to led->cdev and itsattribute inside brightness_show() and max_brightness_show() and alsoupdate the comment for mutex that it should be used to protect the ledclass 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
 漏洞公开时间：2024-12-27 23:15:17
 漏洞创建时间：2024-12-28 00:04:08
 漏洞详情参考链接：
  https://nvd.nist.gov/vuln/detail/CVE-2024-56587
<details>
<summary>更多参考(点击展开)</summary>

| 参考来源 | 参考链接 | 来源链接 |
| ------- | -------- | -------- |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/4ca7cd938725a4050dcd62ae9472e931d603118d |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/50d9f68e4adf86901cbab1bd5b91f710aa9141b9 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/84b42d5b5fcd767c9b7f30b0b32065ed949fe804 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/b8283d52ed15c02bb2eb9b1b8644dcc34f8e98f1 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/bb4a6236a430cfc3713f470f3a969f39d6d4ca25 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/ddcfc5708da9972ac23a9121b3d819b0a53d6f21 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/f6d6fb563e4be245a17bc4261a4b294e8bf8a31e |  |
| suse_bugzilla | http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2024-56587 | https://bugzilla.suse.com/show_bug.cgi?id=1235125 |
| suse_bugzilla | https://www.cve.org/CVERecord?id=CVE-2024-56587 | https://bugzilla.suse.com/show_bug.cgi?id=1235125 |
| suse_bugzilla | https://git.kernel.org/stable/c/4ca7cd938725a4050dcd62ae9472e931d603118d | https://bugzilla.suse.com/show_bug.cgi?id=1235125 |
| suse_bugzilla | https://git.kernel.org/stable/c/50d9f68e4adf86901cbab1bd5b91f710aa9141b9 | https://bugzilla.suse.com/show_bug.cgi?id=1235125 |
| suse_bugzilla | https://git.kernel.org/stable/c/84b42d5b5fcd767c9b7f30b0b32065ed949fe804 | https://bugzilla.suse.com/show_bug.cgi?id=1235125 |
| suse_bugzilla | https://git.kernel.org/stable/c/b8283d52ed15c02bb2eb9b1b8644dcc34f8e98f1 | https://bugzilla.suse.com/show_bug.cgi?id=1235125 |
| suse_bugzilla | https://git.kernel.org/stable/c/bb4a6236a430cfc3713f470f3a969f39d6d4ca25 | https://bugzilla.suse.com/show_bug.cgi?id=1235125 |
| suse_bugzilla | https://git.kernel.org/stable/c/ddcfc5708da9972ac23a9121b3d819b0a53d6f21 | https://bugzilla.suse.com/show_bug.cgi?id=1235125 |
| suse_bugzilla | https://git.kernel.org/stable/c/f6d6fb563e4be245a17bc4261a4b294e8bf8a31e | https://bugzilla.suse.com/show_bug.cgi?id=1235125 |
| suse_bugzilla | https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2024/CVE-2024-56587.mbox | https://bugzilla.suse.com/show_bug.cgi?id=1235125 |
| suse_bugzilla | https://bugzilla.redhat.com/show_bug.cgi?id=2334505 | https://bugzilla.suse.com/show_bug.cgi?id=1235125 |
| redhat_bugzilla | https://lore.kernel.org/linux-cve-announce/2024122758-CVE-2024-56587-1786@gregkh/T | https://bugzilla.redhat.com/show_bug.cgi?id=2334505 |
| debian |  | https://security-tracker.debian.org/tracker/CVE-2024-56587 |
| anolis |  | https://anas.openanolis.cn/cves/detail/CVE-2024-56587 |
| mageia |  | http://advisories.mageia.org/MGASA-2025-0030.html |
| osv | https://git.kernel.org/stable/c/4ca7cd938725a4050dcd62ae9472e931d603118d | https://osv.dev/vulnerability/CVE-2024-56587 |
| osv | https://git.kernel.org/stable/c/50d9f68e4adf86901cbab1bd5b91f710aa9141b9 | https://osv.dev/vulnerability/CVE-2024-56587 |
| osv | https://git.kernel.org/stable/c/84b42d5b5fcd767c9b7f30b0b32065ed949fe804 | https://osv.dev/vulnerability/CVE-2024-56587 |
| osv | https://git.kernel.org/stable/c/b8283d52ed15c02bb2eb9b1b8644dcc34f8e98f1 | https://osv.dev/vulnerability/CVE-2024-56587 |
| osv | https://git.kernel.org/stable/c/bb4a6236a430cfc3713f470f3a969f39d6d4ca25 | https://osv.dev/vulnerability/CVE-2024-56587 |
| osv | https://git.kernel.org/stable/c/ddcfc5708da9972ac23a9121b3d819b0a53d6f21 | https://osv.dev/vulnerability/CVE-2024-56587 |
| osv | https://git.kernel.org/stable/c/f6d6fb563e4be245a17bc4261a4b294e8bf8a31e | https://osv.dev/vulnerability/CVE-2024-56587 |
| osv | https://security-tracker.debian.org/tracker/CVE-2024-56587 | https://osv.dev/vulnerability/CVE-2024-56587 |

</details>

漏洞分析指导链接：
  https://gitee.com/openeuler/cve-manager/blob/master/cve-vulner-manager/doc/md/manual.md
 漏洞数据来源:
  openBrain开源漏洞感知系统
 漏洞补丁信息：
  <details>
<summary>详情(点击展开)</summary>

| 影响的包 | 修复版本 | 修复补丁 | 问题引入补丁 | 来源  |
| ------- | -------- | ------- | -------- | --------- |
|  |  | https://git.kernel.org/stable/c/4ca7cd938725a4050dcd62ae9472e931d603118d |  | nvd |
|  |  | https://git.kernel.org/stable/c/50d9f68e4adf86901cbab1bd5b91f710aa9141b9 |  | nvd |
|  |  | https://git.kernel.org/stable/c/84b42d5b5fcd767c9b7f30b0b32065ed949fe804 |  | nvd |
|  |  | https://git.kernel.org/stable/c/b8283d52ed15c02bb2eb9b1b8644dcc34f8e98f1 |  | nvd |
|  |  | https://git.kernel.org/stable/c/bb4a6236a430cfc3713f470f3a969f39d6d4ca25 |  | nvd |
|  |  | https://git.kernel.org/stable/c/ddcfc5708da9972ac23a9121b3d819b0a53d6f21 |  | nvd |
|  |  | https://git.kernel.org/stable/c/f6d6fb563e4be245a17bc4261a4b294e8bf8a31e |  | nvd |
| linux_kernel | 5.4.287 | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=84b42d5b5fcd767c9b7f30b0b32065ed949fe804Fixed |  | linuxkernelcves |
| linux_kernel | 5.10.231 | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=ddcfc5708da9972ac23a9121b3d819b0a53d6f21Fixed |  | linuxkernelcves |
| linux_kernel | 5.15.174 | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=b8283d52ed15c02bb2eb9b1b8644dcc34f8e98f1Fixed |  | linuxkernelcves |
| linux_kernel | 6.1.120 | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=50d9f68e4adf86901cbab1bd5b91f710aa9141b9Fixed |  | linuxkernelcves |
| linux_kernel | 6.6.66 | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=f6d6fb563e4be245a17bc4261a4b294e8bf8a31eFixed |  | linuxkernelcves |
| linux_kernel | 6.12.5 | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=bb4a6236a430cfc3713f470f3a969f39d6d4ca25Fixed |  | linuxkernelcves |
| linux_kernel | 6.13-rc1 | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=4ca7cd938725a4050dcd62ae9472e931d603118dPlease |  | linuxkernelcves |

</details>

二、漏洞分析结构反馈
 影响性分析说明：
  In the Linux kernel, the following vulnerability has been resolved:leds: class: Protect brightness_show() with led_cdev->led_access mutexThere is NULL pointer issue observed if from Process A where hid devicebeing added which results in adding a led_cdev addition and later aanother call to access of led_cdev attribute from Process B can resultin NULL pointer issue.Use mutex led_cdev->led_access to protect access to led->cdev and itsattribute inside brightness_show() and max_brightness_show() and alsoupdate the comment for mutex that it should be used to protect the ledclass 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+0x174el0t_64_sync+0x1a8/0x1acel0t_64_sync_handler+0x68/0xbcel0_svc+0x38/0x68do_el0_svc+0x1c/0x28el0_svc_common+0x80/0xe0invoke_syscall+0x58/0x114__arm64_sys_read+0x1c/0x2cksys_read+0x78/0xe8vfs_read+0x1e0/0x2c8kernfs_fop_read_iter+0x68/0x1b4seq_read_iter+0x158/0x4eckernfs_seq_show+0x44/0x54sysfs_kf_seq_show+0xb4/0x130dev_attr_show+0x38/0x74brightness_show+0x20/0x4cdualshock4_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
 openEuler评分：
  5.5
 Vector：CVSS：3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
 受影响版本排查(受影响/不受影响)：
  1.openEuler-20.03-LTS-SP4(4.19.90):受影响
2.openEuler-22.03-LTS-SP3(5.10.0):受影响
3.openEuler-22.03-LTS-SP4(5.10.0):受影响
4.openEuler-24.03-LTS(6.6.0):受影响
5.openEuler-24.03-LTS-SP1(6.6.0):受影响
6.master(6.6.0):不受影响
7.openEuler-24.03-LTS-Next(6.6.0):不受影响

修复是否涉及abi变化(是/否)：
  1.openEuler-20.03-LTS-SP4(4.19.90):否
2.openEuler-22.03-LTS-SP3(5.10.0):否
3.master(6.6.0):否
4.openEuler-24.03-LTS(6.6.0):否
5.openEuler-24.03-LTS-Next(6.6.0):否
6.openEuler-22.03-LTS-SP4(5.10.0):否
7.openEuler-24.03-LTS-SP1(6.6.0):否

原因说明：
  1.openEuler-24.03-LTS(6.6.0):正常修复
2.openEuler-24.03-LTS-SP1(6.6.0):正常修复
3.openEuler-20.03-LTS-SP4(4.19.90):不修复-超出修复范围
4.openEuler-22.03-LTS-SP3(5.10.0):不修复-超出修复范围
5.openEuler-22.03-LTS-SP4(5.10.0):不修复-超出修复范围
6.master(6.6.0):不受影响-漏洞代码不能被攻击者触发
7.openEuler-24.03-LTS-Next(6.6.0):不受影响-漏洞代码不能被攻击者触发

三、漏洞修复
安全公告链接：https://www.openeuler.org/zh/security/safety-bulletin/detail/?id=openEuler-SA-2025-1450

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