CVE-2026-99019— SCSI ch 子系统数据引用未释放漏洞
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，以下漏洞已得到修复： SCSI 子系统（ch 驱动）：不再保留对数据传输单元设备的引用 函数会根据磁带库（changer）在 命令中报告的数据传输单元（data transfer element）的 SCSI ID，查找对应的 结构体，并将其存储在 数组中。 会获取一个引用计数，但后续没有任何代码释放该引用： 仅通过 释放了数组本身，而 在其他地方并未被读取，其唯一用途是在同一循环中打印厂商、型号和版本信息。 一旦此类驱动器被移除，其对应的 结构体将永远无法被释放。该设备会一直保留在主机设备
影响版本矩阵 12
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| Linux | Linux | daa6eda65a53e5addf86c6bc829129ff51b08bda< ec6ecab1b7577ae555ee6b81480814d123dd9ec0 |
affected |
daa6eda65a53e5addf86c6bc829129ff51b08bda< cef2cedb6f7a394b278775b3d6ffb9b20ecd61db |
affected | ||
daa6eda65a53e5addf86c6bc829129ff51b08bda< a34a230ccea1b8b667ae59dca11295a2c8f81738 |
affected | ||
daa6eda65a53e5addf86c6bc829129ff51b08bda< 1d35a17f1c2ed4154731895694a1a3557f0da766 |
affected | ||
daa6eda65a53e5addf86c6bc829129ff51b08bda< 27c0f718d3b3c99e6d315308e95d987d0382a8a8 |
affected | ||
2.6.13 |
affected | ||
< 2.6.13 |
unaffected | ||
6.6.160≤ 6.6.* |
unaffected | ||
| … +4 条更多 | |||
获取后续新漏洞提醒
登录后订阅
一、 漏洞 CVE-2026-99019 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！
查看神龙十问 ↗
尽管我们使用了先进的大模型技术，但其输出仍可能包含不准确或过时的信息。神龙努力确保数据的准确性，但请您根据实际情况进行核实和判断。
Vulnerability Title
scsi: ch: Do not keep references to data transfer element devices
来源: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved:
scsi: ch: Do not keep references to data transfer element devices
ch_readconfig() looks up the scsi_device of every data transfer element
whose SCSI id the changer reports in READ ELEMENT STATUS, and stores it in
ch->dt[]. scsi_device_lookup() takes a reference, and nothing ever drops
it: ch_destroy() frees the array with kfree(). ch->dt[] is read nowhere
else - it only supplies the vendor, model and revision printed in the same
loop.
Once such a drive is removed, its scsi_device can never be released. It
stays on the host's device list at its address, so a new device there is
refused by anything that walks the list - target_core_pscsi reports
"scsi_device_get() failed for H:C:T:L" - and the low-level driver's module
can no longer be unloaded. Only a reboot recovers.
It shows with any changer that reports its drives' ids; with the mhvtl
virtual library (IBM 3573-TL personality), each create and remove of a
library with four drives leaves four references behind, counted by the
module's use count in lsmod. With ch not bound the count is unchanged, and
with this patch applied it is unchanged too.
Drop the reference as soon as the name has been printed, and remove the now
unused dt[] array. That also removes the array leaked when ch_probe() fails
after ch_readconfig().
The same leak was reported with an RFC patch in 2022, which was not merged.
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
受影响产品
二、漏洞 CVE-2026-99019 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
AI 生成 POC
高级
未找到公开 POC。
登录以生成 AI POC三、漏洞 CVE-2026-99019 的情报信息
请登录查看更多情报信息。
CVE-2026-99019 补丁与修复 (5)
同批安全公告 · Linux · 2026-10-23 · 共 217 条
| CVE-2026-98959 | 9.8 CRITICAL | btrfs 扩展属性替换处理远程代码执行漏洞 |
| CVE-2026-99078 | 9.8 CRITICAL | Mellanox mlx5e MPWQE重试时XSK缓冲区释放漏洞 |
| CVE-2026-99079 | 9.8 CRITICAL | Mellanox mlx5e 驱动 XSK 缓冲区释放漏洞 |
| CVE-2026-98988 | 8.8 HIGH | Linux 5.13 命名空间越界漏洞 |
| CVE-2026-99083 | 8.8 HIGH | ksmbd 的 krb5_authenticate() 函数堆越界写漏洞 |
| CVE-2026-99082 | 8.8 HIGH | KVM x86 内存管理漏洞 |
| CVE-2026-98870 | 8.8 HIGH | ksmbd 会话清理时存在通道移除逻辑漏洞 |
| CVE-2026-98980 | 8.8 HIGH | namei 遍历中过度挂载条目信息泄露漏洞 |
| CVE-2026-98981 | 8.8 HIGH | Linux 内核命名空间 dentry 解挂载前未哈希漏洞 |
| CVE-2026-99042 | 8.4 HIGH | io_uring 24 字节 sockaddr_in6 过滤字段填充漏洞 |
| CVE-2026-98978 | 8.4 HIGH | Linux 命名空间 锁定挂载永不失效漏洞 |
| CVE-2026-99064 | 8.1 HIGH | CIPSO 缓存选项偏移调整漏洞 |
| CVE-2026-98968 | 8.1 HIGH | AMT 中继通用查询远程代码执行漏洞 |
| CVE-2026-98899 | 7.8 HIGH | Linux netfilter ipset 竞态条件漏洞 |
| CVE-2026-99018 | 7.8 HIGH | RISC-V 内核影子调用栈加载逻辑缺陷 |
| CVE-2026-99002 | 7.8 HIGH | vmwgfx 驱动用户空间 pitch 参数验证漏洞 |
| CVE-2026-99016 | 7.8 HIGH | RISC-V futex 用户指针未去标签原子访问漏洞 |
| CVE-2026-99051 | 7.8 HIGH | fsverity 信息结构释放延迟漏洞 |
| CVE-2026-99032 | 7.8 HIGH | Linux 内核 SMC 模块 信息泄露漏洞 |
| CVE-2026-98999 | 7.8 HIGH | Intel Xe DRM 驱动程序链接表项失效漏洞 |
显示前 20 条，共 217 条。 查看全部 → →