CVE-2024-56587— Linux kernel 安全漏洞
一分钟漏洞结论
影响对象
Linux Linux
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于leds类设备中的空指针问题。
可能的 ATT&CK 技术 1 AI
T1499 · Endpoint Denial of Service影响版本矩阵 16
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| Linux | Linux | 29d76dfa29fe22583aefddccda0bc56aa81035dc< 84b42d5b5fcd767c9b7f30b0b32065ed949fe804 |
affected |
29d76dfa29fe22583aefddccda0bc56aa81035dc< ddcfc5708da9972ac23a9121b3d819b0a53d6f21 |
affected | ||
29d76dfa29fe22583aefddccda0bc56aa81035dc< b8283d52ed15c02bb2eb9b1b8644dcc34f8e98f1 |
affected | ||
29d76dfa29fe22583aefddccda0bc56aa81035dc< 50d9f68e4adf86901cbab1bd5b91f710aa9141b9 |
affected | ||
29d76dfa29fe22583aefddccda0bc56aa81035dc< f6d6fb563e4be245a17bc4261a4b294e8bf8a31e |
affected | ||
29d76dfa29fe22583aefddccda0bc56aa81035dc< bb4a6236a430cfc3713f470f3a969f39d6d4ca25 |
affected | ||
29d76dfa29fe22583aefddccda0bc56aa81035dc< 4ca7cd938725a4050dcd62ae9472e931d603118d |
affected | ||
2.6.26 |
affected | ||
| … +8 条更多 | |||
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一、 漏洞 CVE-2024-56587 基础信息
漏洞信息
对漏洞内容有疑问？看看神龙的深度分析是否有帮助！
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Vulnerability Title
leds: class: Protect brightness_show() with led_cdev->led_access mutex
来源: CVE Program / CVE List V5
Vulnerability Description
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
来源: CVE Program / CVE List V5
CVSS Information
N/A
来源: CVE Program / CVE List V5
Vulnerability Type
N/A
来源: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于leds类设备中的空指针问题。
来源: 中国国家信息安全漏洞库 CNNVD
CVSS Information
N/A
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Type
N/A
来源: 中国国家信息安全漏洞库 CNNVD
受影响产品
二、漏洞 CVE-2024-56587 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2024-56587 补丁与修复 (7)
同批安全公告 · Linux · 2024-12-27 · 共 221 条
| CVE-2024-53206 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2024-53209 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2024-56656 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2024-53169 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2024-56645 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2024-53186 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2024-56640 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2024-53176 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2024-53177 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2024-53179 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2024-56626 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-56653 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-56651 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-56591 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-53224 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-53237 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-56669 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-56627 | 8.1 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-53214 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-56619 | 7.8 HIGH | Linux kernel 安全漏洞 |
显示前 20 条，共 221 条。 查看全部 → →
IV. Related Vulnerabilities
V. Comments for CVE-2024-56587
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