CHARON

/ || | | | / \ | \ / | \ | | | | | || | / \ | | | | | | | | | | | |/ | "살아 계신 하나님의 손에 빠지는 것은 두려운 일입니다." — 히브리서 10:31 이것이 무엇인가 CVE-2026-46333 에 대한 작고 의존성 없는 PoC입니다. ptracemayaccess의 mm==NULL 우회는 2026년 5월 15일에 Qualys가 공개했습니다. Charon은 죽어가는 SUID-root 프로세스에 대해 pidfdgetfd2를 경쟁 조건으로 사용하여, doexit의 짧은...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15, Linux-6.1

In the Linux kernel, the following vulnerability has been resolved: Binder: Fixed the race condition between mmput and doexit. Task A calls binderupdatepagerange to allocate and insert pages in a remote address space from Task B. To do this, Task A first pinches the remote memory region using...

SUSE CVE-2026-74335

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix NULL pointer dereference in bpftaskfromvpid bpftaskfromvpid looks up a task in the pid namespace of the current task, via findtaskbyvpid: findtaskbyvpidvpid findtaskbypidnsvpid, taskactivepidnscurrent findpidnsnr, ns -...

CVE-2026-74335

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix NULL pointer dereference in bpftaskfromvpid bpftaskfromvpid looks up a task in the pid namespace of the current task, via findtaskbyvpid: findtaskbyvpidvpid findtaskbypidnsvpid, taskactivepidnscurrent findpidnsnr, ns -...

UBUNTU-CVE-2026-74335

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix NULL pointer dereference in bpftaskfromvpid bpftaskfromvpid looks up a task in the pid namespace of the current task, via findtaskbyvpid: findtaskbyvpidvpid findtaskbypidnsvpid, taskactivepidnscurrent findpidnsnr, ns -...

CVE-2026-74335 bpf: Fix NULL pointer dereference in bpf_task_from_vpid()

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix NULL pointer dereference in bpftaskfromvpid bpftaskfromvpid looks up a task in the pid namespace of the current task, via findtaskbyvpid: findtaskbyvpidvpid findtaskbypidnsvpid, taskactivepidnscurrent findpidnsnr, ns -...

EUVD-2026-59482

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix NULL pointer dereference in bpftaskfromvpid bpftaskfromvpid looks up a task in the pid namespace of the current task, via findtaskbyvpid: findtaskbyvpidvpid findtaskbypidnsvpid, taskactivepidnscurrent findpidnsnr, ns -...

CVE-2026-74335

The CVE-2026-74335 issue is in the Linux kernel’s BPF helpers: bpf_task_from_vpid() dereferences NULL in task_active_pid_ns(current) when a thread is exiting and its pid namespace is cleared, leading to a NULL pointer dereference in idr_find(). The vulnerability path involves bpf/cgroup programs ...

Linux Kernel __ptrace_may_access() Exit Race chage File Disclosure

This module exploits a race condition in the Linux kernel doexit teardown path affecting ptracemayaccess. During process termination, privileged file descriptors may remain accessible through pidfdgetfd after task-mm becomes NULL, allowing sensitive file disclosure from privileged SUID binaries...

CVE-2026-43402

Summary: CVE-2026-43402 affects the Linux kernel where kthread exit paths were consolidated to prevent a use-after-free in the kthread/pid data cleanup, after crashes traced to corrupted RCU function pointers during KUnit tests. The root cause involves a pid hashtable conversion changing structur...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from the perf module attempting user stack sampling during doexit, which may result in memory access errors...

CVE-2024-26743

Technical details about CVE-2024-26743 are not provided in the supplied documents. Please monitor vendor advisories for affected products, impact, and fixes.

CVE-2023-52609

In the Linux kernel, the following vulnerability has been resolved: binder: fix race between mmput and doexit Task A calls binderupdatepagerange to allocate and insert pages on a remote address space from Task B. For this, Task A pins the remote mm via mmgetnotzero first. This can race with Task ...

CVE-2023-52609

In the Linux kernel, the following vulnerability has been resolved: binder: fix race between mmput and doexit Task A calls binderupdatepagerange to allocate and insert pages on a remote address space from Task B. For this, Task A pins the remote mm via mmgetnotzero first. This can race with Task ...

UBUNTU-CVE-2023-52609

In the Linux kernel, the following vulnerability has been resolved: binder: fix race between mmput and doexit Task A calls binderupdatepagerange to allocate and insert pages on a remote address space from Task B. For this, Task A pins the remote mm via mmgetnotzero first. This can race with Task ...

CVE-2023-52609 binder: fix race between mmput() and do_exit()

In the Linux kernel, the following vulnerability has been resolved: binder: fix race between mmput and doexit Task A calls binderupdatepagerange to allocate and insert pages on a remote address space from Task B. For this, Task A pins the remote mm via mmgetnotzero first. This can race with Task ...

CVE-2023-52609

CVE-2023-52609 : Linux kernel binder race between mmput() and do_exit() causes delayed cleanup when Task A pins a remote mm and Task B exits. The race can defer death notifications until a binder event wakes Task A. The patch uses mmput_async() to schedule cleanup work in the mm->async_put_wor...

CVE-2023-52609 binder: fix race between mmput() and do_exit()

In the Linux kernel, the following vulnerability has been resolved: binder: fix race between mmput and doexit Task A calls binderupdatepagerange to allocate and insert pages on a remote address space from Task B. For this, Task A pins the remote mm via mmgetnotzero first. This can race with Task ...

Linux kernel security vulnerabilities

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. Linux kernel has a security vulnerability that stems from a contention problem between mmput and doexit...

CVE-2023-52609: Concurrent Execution using Shared Resource with Improper Synchronization

In the Linux kernel, the following vulnerability has been resolved: binder: fix race between mmput and doexit Task A calls binderupdatepagerange to allocate and insert pages on a remote address space from Task B. For this, Task A pins the remote mm via mmgetnotzero first. This can race with Task ...