CVE-2026-93150

CVE-2026-93150 affects the Linux kernel cgroup/cpuset subsystem. The root cause is a race condition on the nr_deadline_tasks variable in the cpuset structure: it can be concurrently modified by inc_dl_tasks_cs() (under rq->lock) and cpuset_attach() (under cpuset_mutex), leading to data corrupt...

EUVD-2026-82258

In the Linux kernel, the following vulnerability has been resolved: cgroup/cpuset: Make nrdeadlinetasks an atomict The nrdeadlinetasks variable in the cpuset structure was introduced by commit 6c24849f5515 "sched/cpuset: Keep track of SCHEDDEADLINE task in cpusets". It is reported by sashiko 1 th...

CVE-2024-42239

A denial of service flaw was found in the linux kernel based on mutual exclusion locking. Two bpftimercancel calls wwill wait for the other callback to finish executing, resulting in a deadlock situation...

CVE-2024-42239

In the Linux kernel, the following vulnerability has been resolved: bpf: Fail bpftimercancel when callback is being cancelled Given a schedule: timer1 cb timer2 cb bpftimercanceltimer2; bpftimercanceltimer1; Both bpftimercancel calls would wait for the other callback to finish executing,...

CVE-2024-42239 bpf: Fail bpf_timer_cancel when callback is being cancelled

In the Linux kernel, the following vulnerability has been resolved: bpf: Fail bpftimercancel when callback is being cancelled Given a schedule: timer1 cb timer2 cb bpftimercanceltimer2; bpftimercanceltimer1; Both bpftimercancel calls would wait for the other callback to finish executing,...

CVE-2024-42239 bpf: Fail bpf_timer_cancel when callback is being cancelled

In the Linux kernel, the following vulnerability has been resolved: bpf: Fail bpftimercancel when callback is being cancelled Given a schedule: timer1 cb timer2 cb bpftimercanceltimer2; bpftimercanceltimer1; Both bpftimercancel calls would wait for the other callback to finish executing,...

Linux内核 Keyrings 引用计数溢出 UAF 漏洞

漏洞分析 Linux Kernel的这个漏洞会造成两个影响，第一个是造成信息泄露，可以bypass ASLR，另一个是UAF造成代码执行，利用的是KeyRing机制中的两个漏洞，一个是对Keyring操作控制不严谨，另一个是利用对Keyring计数变量控制不严谨，其中代码执行利用条件相对苛刻，下面对此漏洞进行详细分析。 Keyring信息泄露： Keyring和安全密钥有关，进程可以申请自己新的keyring，同时也可以通过申请新的keyring替换老的keyring，其中，调用到joinsessionkeyring函数。 long joinsessionkeyringconst cha...