CVE-2026-53081— BPF 内核 远程代码执行漏洞
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一、 漏洞 CVE-2026-53081 基础信息
漏洞信息
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Vulnerability Title
bpf: Enforce regsafe base id consistency for BPF_ADD_CONST scalars
来源: 美国国家漏洞数据库 NVD
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: bpf: Enforce regsafe base id consistency for BPF_ADD_CONST scalars When regsafe() compares two scalar registers that both carry BPF_ADD_CONST, check_scalar_ids() maps their full compound id (aka base | BPF_ADD_CONST flag) as one idmap entry. However, it never verifies that the underlying base ids, that is, with the flag stripped are consistent with existing idmap mappings. This allows construction of two verifier states where the old state has R3 = R2 + 10 (both sharing base id A) while the current state has R3 = R4 + 10 (base id C, unrelated to R2). The idmap creates two independent entries: A->B (for R2) and A|flag->C|flag (for R3), without catching that A->C conflicts with A->B. State pruning then incorrectly succeeds. Fix this by additionally verifying base ID mapping consistency whenever BPF_ADD_CONST is set: after mapping the compound ids, also invoke check_ids() on the base IDs (flag bits stripped). This ensures that if A was already mapped to B from comparing the source register, any ADD_CONST derivative must also derive from B, not an unrelated C.
来源: 美国国家漏洞数据库 NVD
CVSS Information
N/A
来源: 美国国家漏洞数据库 NVD
Vulnerability Type
N/A
来源: 美国国家漏洞数据库 NVD
受影响产品
二、漏洞 CVE-2026-53081 的公开POC
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CVE-2026-53081 补丁与修复 (4)
同批安全公告 · Linux · 2026-06-24 · 共 219 条
| CVE-2026-52980 | Linux内核公平调度器初始化时未清除相对截止期漏洞 | |
| CVE-2026-52993 | TIPC tipc_buf_append() 双重释放漏洞 | |
| CVE-2026-52991 | sched/psi 文件释放与压力写入间竞态条件漏洞 | |
| CVE-2026-52990 | fsnotify inode引用泄漏漏洞 | |
| CVE-2026-52988 | netfilter: nf_tables 在提交阶段使用 splice_list_rcu() 加入钩子列表 | |
| CVE-2026-52989 | nvmet-tcp 传播 nvmet_tcp_build_pdu_iovec() 错误到调用者 | |
| CVE-2026-52987 | AMD GPU 驱动用户队列验证中双重释放漏洞 | |
| CVE-2026-52986 | netfilter nf_conntrack_sip 漏洞 | |
| CVE-2026-52985 | netdevsim 虚拟网卡 iphdr结构体未初始化漏洞 | |
| CVE-2026-52984 | Linux netem 队列限制检查漏洞 | |
| CVE-2026-52982 | Realtek RTL8150 网卡 use-after-free 漏洞 | |
| CVE-2026-52983 | Airoha网络驱动TX路径BQL失衡漏洞 | |
| CVE-2026-52981 | 内核neigh模块skb所有权管理漏洞 | |
| CVE-2026-52979 | net: psp: 创建关联时检查设备注销 | |
| CVE-2026-52968 | KVM s390 PCI GAIT表索引双重缩放指针算法定位漏洞 | |
| CVE-2026-52972 | crypto: af_alg - AEAD附加数据长度限制漏洞 | |
| CVE-2026-52970 | nft_ct: obj eval缺失expect put导致漏洞 | |
| CVE-2026-52969 | KVM: kvm_reset_dirty_gfn() 回绕偏移拒绝漏洞 | |
| CVE-2026-52971 | ena: get_timestamp中潜在Use-after-Free漏洞 | |
| CVE-2026-52967 | SMB客户端符号链接无限循环及越界读取漏洞 |
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IV. Related Vulnerabilities
V. Comments for CVE-2026-53081
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