CVE-2026-64534— Linux nvmet-tcp digest错误处理漏洞
可能的 ATT&CK 技术 1AI
T1211 · Exploitation for Stealth影响版本矩阵 20
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| Linux | Linux | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 22ec7a9fe9153d2737ee9b2fa6d2e43a1491decf | affected |
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< ba35b1c674ca3841c0dfadd698f2c1b3ec542d4e | affected | ||
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< c7874dad84b20433c0fe3919f291a762d40de08b | affected | ||
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< e602c93b25bda4a9d0ff1791a4bdbfdcbb074af1 | affected | ||
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< d306da8833e75f669d93424fd84940236f3850bc | affected | ||
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 2ed3c9d955e8cd6361f130623baa664a75fb345f | affected | ||
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 4606467a75cfc16721937272ed29462a750b60c8 | affected | ||
< 5.10.261 | affected | ||
| … +12 条更多 | |||
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一、 漏洞 CVE-2026-64534 基础信息
漏洞信息
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Vulnerability Title
nvmet-tcp: check INIT_FAILED before nvmet_req_uninit in digest error path
来源: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: nvmet-tcp: check INIT_FAILED before nvmet_req_uninit in digest error path In nvmet_tcp_try_recv_ddgst(), when a data digest mismatch is detected, nvmet_req_uninit() is called unconditionally. However, if the command arrived via the nvmet_tcp_handle_req_failure() path, nvmet_req_init() had returned false and percpu_ref_tryget_live() was never executed. The unconditional percpu_ref_put() inside nvmet_req_uninit() then causes a refcount underflow, leading to a WARNING in percpu_ref_switch_to_atomic_rcu, a use-after-free diagnostic, and eventually a permanent workqueue deadlock. Check cmd->flags & NVMET_TCP_F_INIT_FAILED before calling nvmet_req_uninit(), matching the existing pattern in nvmet_tcp_execute_request().
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-2026-64534 的公开POC
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|---|
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CVE-2026-64534 补丁与修复 (6)
同批安全公告 · Linux · 2026-07-27 · 共 25 条
| CVE-2026-64543 | TIPC discoverer use-after-free漏洞 | |
| CVE-2026-64532 | NTFS3 更新记录数据越界访问漏洞 | |
| CVE-2026-64531 | OpenvSwitch 拒绝超大嵌套动作属性漏洞 | |
| CVE-2026-64533 | ntfs3：日志回放转换中lcns_follow验证缺失 | |
| CVE-2026-64535 | nvmet-tcp 远程代码执行漏洞 | |
| CVE-2026-64536 | rtl8723bs 驱动 is_ap_in_tkip() 函数存在越界读取漏洞 | |
| CVE-2026-64537 | bridge cfm 配置时拒绝无效 CCM 间隔 | |
| CVE-2026-64538 | IPv6 fib6_nh_mtu_change()空指针解引用漏洞 | |
| CVE-2026-64539 | 蓝牙 EIR 标志 AD 预写栈溢出漏洞 | |
| CVE-2026-64540 | USBNet gl620a泛林rx_fixup()越界读取漏洞 | |
| CVE-2026-64541 | net/smc：修复smc_cdc_rx_handler()中的UAF漏洞 | |
| CVE-2026-64542 | IPv6 网络发现 accept_untracked_na() NULL 解引用漏洞 | |
| CVE-2026-64554 | Linux netfilter 桥接模块 br_ip6_fragment() 悬垂指针漏洞 | |
| CVE-2026-64544 | crypto: 不对称密钥 pefile_digest_pe_contents 越界读取漏洞 | |
| CVE-2026-64546 | drm/edid: drm_parse_tiled_block()越界读取漏洞 | |
| CVE-2026-64545 | Linux内核BPF模块xpd_master_redirect()空指针解引用漏洞 | |
| CVE-2026-64547 | net1080 驱动 rx_fixup 函数漏洞 | |
| CVE-2026-64548 | bpf sockmap: bpf_msg_push_data() 溢出复制长度拒绝 | |
| CVE-2026-64550 | Qualcomm RMNET MAP帧长度验证漏洞 | |
| CVE-2026-64549 | 蓝牙驱动 bpa10x 在 bpa10x_setup() 中存在越界读取漏洞 |
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IV. Related Vulnerabilities
V. Comments for CVE-2026-64534
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