CVE-2026-90307— Linux RDMA 修复 SRP_CRED_REQ 堆信息泄露
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： RDMA/srp：修复因截断的 SRP_CRED_REQ 导致的堆信息泄露 函数将 传递给 。但该函数未向 和 传递任何参数，而这两个函数在读取接收缓冲区中的固定大小字段时，并未检查这些字段是否已完整接收。 缓冲区的大小为 ，该值来自登录响应，且未经过验证。如果目标端（Target）通告 8 并随后发送一个 8 字节的 ，发起端（Initiator）就会从缓冲区末尾之外读取 。由于 会被复制到 并回发给目标端，因此这些字节最终会到达目标端。 的行为相同，并且还会读取 。
可能的 ATT&CK 技术 1 AI
T1203 · Exploitation for Client Execution影响版本矩阵 18
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| Linux | Linux | bb12588a38e6db85e01dceadff7bc161fc92e7d2< 3f7fdf561f1ec3b523c39708df00bd808671668d |
affected |
bb12588a38e6db85e01dceadff7bc161fc92e7d2< 138eb2f0ef02adfe6ad126afad5b54c56b5046ee |
affected | ||
bb12588a38e6db85e01dceadff7bc161fc92e7d2< 3787f4c3e0d813d6c56be9f6dfaf66f8551fb0a7 |
affected | ||
bb12588a38e6db85e01dceadff7bc161fc92e7d2< 0e7ba617514902501514d577647d866e670dad90 |
affected | ||
bb12588a38e6db85e01dceadff7bc161fc92e7d2< 001adf2fe87d1ab677c014a97467bbea5153ae5f |
affected | ||
bb12588a38e6db85e01dceadff7bc161fc92e7d2< dc2272c00d7c00ee2a69b57f7ca9caaefcbdb8cd |
affected | ||
bb12588a38e6db85e01dceadff7bc161fc92e7d2< fa1b33fdab3e79dce83721ead3220200a2dbec22 |
affected | ||
bb12588a38e6db85e01dceadff7bc161fc92e7d2< 961ac0f0c5e414abdd6b33fae84b311d9fde0bd0 |
affected | ||
| … +10 条更多 | |||
获取后续新漏洞提醒
登录后订阅
一、 漏洞 CVE-2026-90307 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
RDMA/srp: fix heap information leak on a truncated SRP_CRED_REQ
来源: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved:
RDMA/srp: fix heap information leak on a truncated SRP_CRED_REQ
srp_recv_done() passes wc->byte_len to srp_process_rsp(). It passes
nothing to srp_process_cred_req() and srp_process_aer_req(), which read
fixed-size fields from the receive buffer without checking that those
fields were received.
The buffer size is max_ti_iu_len, which comes from the login response
and is not validated. A target that advertises 8 and then sends an
8-byte SRP_CRED_REQ makes the initiator read req->tag from beyond the
end of the buffer. req->tag is copied into the SRP_CRED_RSP and sent
back, so those bytes reach the target. SRP_AER_REQ behaves the same way
and also reads req->lun.
The leak is 8 bytes per response. max_ti_iu_len also decides which slab
cache the buffer comes from. With 8 the buffer is a kmalloc-8 object and
the read is entirely outside it:
BUG: KASAN: slab-out-of-bounds in srp_recv_done+0x172b/0x1aa0
Read of size 8 at addr ffff888104714da8 by task kworker/u8:3/50
which belongs to the cache kmalloc-8 of size 8
The buggy address is located 0 bytes to the right of
allocated 8-byte region [ffff888104714da0, ffff888104714da8)
Without KASAN the returned bytes are whatever is next in the slab. One
run returned ".strtab".
rsp->data[3] in srp_process_rsp() has the same problem: only
resp_data_len is checked before it is read.
Drop a request that is shorter than the structure being parsed, and
check byte_len before the tsk_mgmt read.
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-2026-90307 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-2026-90307 的情报信息
请登录查看更多情报信息。
CVE-2026-90307 补丁与修复 (8)
同批安全公告 · Linux · 2026-09-17 · 共 602 条
| CVE-2026-90255 | Linux内核 Bluetooth 漏洞 | |
| CVE-2026-90238 | Linux内核 AMD ISP4 驱动死锁漏洞 | |
| CVE-2026-90240 | Linux内核 IOMMU 别名拆除时刷新缓存错误 | |
| CVE-2026-90239 | Linux内核 AMD ISP4 内存管理缺陷 | |
| CVE-2026-90241 | Intel VT-d 可扩展模式探测失败导致上下文拆除缺陷 | |
| CVE-2026-90243 | Linux内核 VT-d IOMMU 安全漏洞 | |
| CVE-2026-90242 | Linux内核IOMMU VTD引用计数泄漏 | |
| CVE-2026-90244 | Linux内核 iommu/dma 竞争条件漏洞 | |
| CVE-2026-90245 | Linux fbdev kyro 驱动坐标校验缺陷 | |
| CVE-2026-90246 | AppArmor 标签验证整数溢出 | |
| CVE-2026-90247 | 内核bpf路径mmap_lock内存泄漏 | |
| CVE-2026-90248 | Linux内核net/sched：修复竞态条件导致的协议拆解错误 | |
| CVE-2026-90249 | Linux内核iio驱动运行时电源管理修复 | |
| CVE-2026-90250 | Linux内核 bpf cgroup 空指针解引用漏洞 | |
| CVE-2026-90251 | Windows 17763 Bluetooth RCE漏洞 | |
| CVE-2026-90253 | Linux 蓝牙MESH 发送取消命令内存泄漏漏洞 | |
| CVE-2026-90252 | Linux Bluetooth MGMT 取消时未释放HCI命令 | |
| CVE-2026-90254 | 蓝牙 hci_sync 广告实例释放漏洞 | |
| CVE-2026-90256 | Linux Bluetooth L2CAP 远程代码执行漏洞 | |
| CVE-2026-90268 | Linux内核 SCSI子系统探测功能处理错误 |
显示前 20 条，共 602 条。 查看全部 → →
IV. Related Vulnerabilities
V. Comments for CVE-2026-90307
暂无评论