CVE-2026-89999— Wacom HID驱动远程代码执行漏洞
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。
在 Linux 内核中，以下漏洞已得到解决： HID: wacom: 在 中校验报告长度 函数接收通过 传递的线路报告长度，但在解析前从未参考该长度。在通过报告 ID 门控（gate）后，它会无条件调用 ，随后根据 选择一组固定的子解析器链条。这些子解析器均未接收 参数： 每个子解析器都在固定偏移量处解引用 。各分支中触及的最远字节如下： INTUOSP2_BT / INTUOSP2S_BT： 读取 （touchring 字节），因此报告长度必须至少为 286 字节； INTUOSHT3_BT ("gen3")：
影响版本矩阵 18
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| Linux | Linux | 4922cd26f03c1c71bf7dd6cbdb638e7e36a4a50b< d2844f3fcd058113acbe0aa110ab13ef28b98d9f |
affected |
4922cd26f03c1c71bf7dd6cbdb638e7e36a4a50b< 1bfc0547b81d5861443420d19b5ed2fd533cd17f |
affected | ||
4922cd26f03c1c71bf7dd6cbdb638e7e36a4a50b< 84781a1f3c5dc6650480be9329e6e8528939eaa0 |
affected | ||
4922cd26f03c1c71bf7dd6cbdb638e7e36a4a50b< 96dd0af7597aba2d80cc97e2f66e8b72d30ba125 |
affected | ||
4922cd26f03c1c71bf7dd6cbdb638e7e36a4a50b< 114af803e409a68e52516810ecd24df4d8ce0c68 |
affected | ||
4922cd26f03c1c71bf7dd6cbdb638e7e36a4a50b< 74ec08f7b81c2726578039ca6dea0fec136c38ea |
affected | ||
4922cd26f03c1c71bf7dd6cbdb638e7e36a4a50b< 0cdc6cb242dd8d2731956fdf3390de094482a4b2 |
affected | ||
4922cd26f03c1c71bf7dd6cbdb638e7e36a4a50b< a8e04f3f894ccb52cfcd7e60125a9f35da4a616d |
affected | ||
| … +10 条更多 | |||
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一、 漏洞 CVE-2026-89999 基础信息
漏洞信息
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Vulnerability Title
HID: wacom: validate report length in wacom_intuos_pro2_bt_irq
来源: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved:
HID: wacom: validate report length in wacom_intuos_pro2_bt_irq
wacom_intuos_pro2_bt_irq() receives the wire report length in `len`
but never consults it before parsing. After the report-id gate it
unconditionally calls wacom_intuos_pro2_bt_pen() and then, selected by
features.type, a fixed chain of sub-parsers, none of which receive
`len`:
wacom_intuos_pro2_bt_pen(wacom);
if (type == INTUOSP2_BT || type == INTUOSP2S_BT) {
wacom_intuos_pro2_bt_touch(wacom);
wacom_intuos_pro2_bt_pad(wacom);
wacom_intuos_pro2_bt_battery(wacom);
} else {
wacom_intuos_gen3_bt_pad(wacom);
wacom_intuos_gen3_bt_battery(wacom);
}
Each sub-parser dereferences wacom->data at fixed offsets. The furthest
byte touched on each branch is:
INTUOSP2_BT / INTUOSP2S_BT: wacom_intuos_pro2_bt_pad() reads data[285]
(the touchring byte), so the report must be at least 286 bytes;
INTUOSHT3_BT ("gen3"): wacom_intuos_gen3_bt_battery() reads data[45],
so the report must be at least 46 bytes.
features.type is selected from the VID/PID id_table entry and
wacom_setup_device_quirks() force-registers the pen/pad/touch inputs
for that type independent of the report descriptor, so a malicious or
malfunctioning paired/spoofed Bluetooth peripheral can advertise that
VID/PID and send an undersized report that still satisfies the
data[0] == 0x80/0x81 gate. The driver then reads past the received
report and forwards the bytes to userspace via evdev (MSC_SERIAL /
ABS_MISC / ABS_WHEEL on the pen and pad input nodes), an out-of-bounds
read with a concrete userspace read-back channel, and a true
out-of-bounds read on transports whose backing buffer is sized to the
(small) report descriptor rather than a fixed-size staging buffer.
This is the same class of bug commit 2f1763f62909 ("HID: wacom: fix
out-of-bounds read in wacom_intuos_bt_irq") already hardened in the
sibling wacom_intuos_bt_irq(), which guards each report id against its
minimum length before parsing.
Guard wacom_intuos_pro2_bt_irq() the same way: before parsing, reject
reports shorter than the furthest offset the selected branch actually
dereferences, warn, and bail out. Because the whole pen/touch/pad/
battery chain runs unconditionally per branch, a single up-front check
against the maximum offset (286 bytes for INTUOSP2_BT/INTUOSP2S_BT,
46 bytes for the gen3 branch) bounds every sub-parser. Returning 0 on
a short report also skips those calls for the same malformed report,
which is the safe, conservative behavior.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
来源: CVE Program / CVE List V5
Vulnerability Type
N/A
来源: CVE Program / CVE List V5
受影响产品
二、漏洞 CVE-2026-89999 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2026-89999 其他参考 (8)
同批安全公告 · Linux · 2026-09-16 · 共 276 条
| CVE-2026-90048 | 9.8 CRITICAL | Linux内核NTFS3文件系统越界写漏洞 |
| CVE-2026-90012 | 9.8 CRITICAL | SPI DMA映射所有权修复 |
| CVE-2026-89970 | 9.8 CRITICAL | NVM Target SQ拆除时超时工作未同步 |
| CVE-2026-89857 | 9.8 CRITICAL | QLogic qla2xxx NVMe LS拒绝竞态条件漏洞 |
| CVE-2026-89969 | 9.8 CRITICAL | Linux内核 nvmet-tcp 越界写入漏洞 |
| CVE-2026-89847 | 9.8 CRITICAL | qla2xxx SCSI驱动异步IOCB超时双重完成漏洞 |
| CVE-2026-89972 | 9.8 CRITICAL | NVMe驱动错误路径SRCU宽限期缺失漏洞 |
| CVE-2026-89990 | 9.8 CRITICAL | Ceph ceph_mds_check_access 互斥锁缺失漏洞 |
| CVE-2026-90036 | 9.8 CRITICAL | Linux NFSd 阻塞锁收割时释放后使用漏洞 |
| CVE-2026-90038 | 9.8 CRITICAL | Linux内核NFSD导出撤销后使用漏洞 |
| CVE-2026-90037 | 9.8 CRITICAL | Linux内核NFSD close_lru释放后使用漏洞 |
| CVE-2026-89788 | 9.8 CRITICAL | Linux kernel ksmbd 释放后使用漏洞 |
| CVE-2026-89783 | 9.8 CRITICAL | Linux内核 xfrm6 越界写入漏洞 |
| CVE-2026-90042 | 9.8 CRITICAL | Ceph 虚拟内存分配缓冲区文件名解密漏洞 |
| CVE-2026-89778 | 9.8 CRITICAL | isofs 空 zisofs 块页面数组越界访问漏洞 |
| CVE-2026-89915 | 9.3 CRITICAL | KVM arm64 移除虚拟机级 VNCR 映射计数器 |
| CVE-2026-90049 | 9.3 CRITICAL | 内核网络子系统中skb_zerocopy处理中的缺陷 |
| CVE-2026-89775 | 9.3 CRITICAL | KVM arm64 VNCR TLB大小计算漏洞 |
| CVE-2026-89916 | 9.3 CRITICAL | KVM arm64 VNCR失效重试漏洞 |
| CVE-2026-89930 | 9.3 CRITICAL | KVM嵌套虚拟化本地TLB刷新漏洞 |
显示前 20 条，共 276 条。 查看全部 → →
IV. Related Vulnerabilities
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