Linux Kernel Security
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| 日期 | 订阅者增长 | 提及 | 频道 | |
| 03 十一月 | 0 | |||
| 02 十一月 | +2 | |||
| 01 十一月 | +1 |
频道帖子
Bad UVM
Article by Ziyi Guo about escaping an NVidia Container Toolkit container by exploiting a logical bug in the NVidia GPU driver.
| 2 |  When Defenses Become Attack Surface: CVE-2026-20971, a Samsung Kernel UAF
Article about analyzing exploitation primitives derived from a racy use-after-free bug in the Samsung PROCA (Process Authenticator) kernel module. | 2 036 |
| 3 |  SoK: Take a Deep Step into Linux Kernel Hardening Effectiveness from the Offensive-Defensive Perspective
A paper with analysis of 121 publicly documented exploits since 2015 and in-depth evaluation of 51 existing kernel defense mechanisms. | 3 033 |
| 4 |  PageJack in Action: CVE-2022-0995 exploit
Article by Jean Vincent describing how a relatively old CVE can be exploited using the PageJack exploitation technique. | 3 229 |
| 5 |  CROSS-X: Generalized and Stable Cross-Cache Attack on the Linux Kernel
Paper by Dong-ok Kim, Juhyun Song, et al. documenting the steps for executing a cross-cache attacks for caches with min_partial >= cpu_partial_slabs.
The paper also describes a fuzzing-based approach of finding target slab objects useful for exploitation. | 3 344 |
| 6 |  Testing race conditions with memory access tracing and stack-based delay injection
Article by Jann Horn about MAccConc — a KCOV-based tool for exploring possible kernel code interleavings of a multi-threaded program. | 3 301 |
| 7 |  SCTPhantom: An 18-Year-Old SCTP ASCONF Transport Use-After-Free
Article about exploiting CVE-2026-64564 in the implementation of the Stream Control Transmission Protocol (SCTP). Authors exploited a UAF in the kmalloc-1k cache to gain root and escape a container. | 3 311 |
| 8 |  Gone in 60 Frames – USB Video Exploitation
Article (and slides) by Alex Plaskett and Robert Herrera about fuzzing USB drivers with syzkaller and writing an exploit that gains code execution over USB on Ubuntu. | 3 831 |
| 9 |  IonStack part III: Rooting Android 17 with GhostLock
Article about adapting the exploit of CVE-2026-43499 (racy stack use-after-free in the futex implementation) to Android.
The researchers used KernelSnitch, ashmem fops overwriting, pipe_buffer corruption, and other tricks to perform LPE. | 2 755 |
| 10 |  I handed the epoll UAF to an agent
Article by Guy Beck about using Claude for porting an exploit for an eventpoll vulnerability to Android. | 2 741 |
| 11 |  IonStack part II: GhostLock, a stack-UAF that has existed in ALL Linux distributions for 15 years
Article about exploiting a racy stack use-after-free in the futex implementation. The bug was used to pwn a kernelCTF instance. | 2 574 |
| 12 |  Unprivileged root via an out-of-bounds write in the FUSE readdir cache (CVE-2026-31694)
Article by Stan Shaw about exploiting a page OOB write bug in the FUSE subsystem by overwriting /etc/passwd in the page cache. | 2 341 |
| 13 |  Januscape: Guest-to-Host Escape in KVM/x86
Hyunwoo Kim published an article about a use-after-free vulnerability in the shadow MMU emulation of KVM/x86 (CVE-2026-53359). Both Intel (VMX) and AMD (SVM) code is affected.
The article only covers achieving a kernel crash via this bug, but the vulnerability can also be exploited to escape the guest VM. The author used this bug to pwn a kvmCTF instance. | 2 441 |
| 14 |  ITScape: Guest-to-Host Escape in KVM/arm64
Article by Hyunwoo Kim about exploiting a race condition bug in the KVM driver on the arm64 architecture to escape the guest VM. | 7 309 |
| 15 |  Bad Epoll: The bug missed by Mythos
Article by Jaeyoung Chung about exploiting CVE-2026-46242 — a race condition bug in the eventpoll subsystem. Jaeyoung exploited this bug to claim a kernelCTF entry, but the vulnerability also affects Android kernels. | 4 335 |
| 16 |  Unprivileged root via a use-after-free in DRM GEM change_handle (CVE-2026-46215)
Stan Shaw published an article about exploiting UAF in a DRM GEM ioctl. The researcher reallocated freed memory as a pipe_buffer array to set PIPE_BUF_FLAG_CAN_MERGE and perform the Dirty Pipe attack. | 3 085 |
| 17 | Off By !: Exploiting a Use-after-Free in the Linux Kernel
Oliver Sieber published a write-up about CVE-2026-23111 in nftables, which they found in early 2025 and other researchers patched upstream in February 2026. The article describes exploiting this UAF on Debian and Ubuntu. | 2 785 |
| 18 | CIFSwitch: a non-universal Linux local root vulnerability
Asim Viladi Oglu Manizada posted an article about a nice logic bug in the interaction between the kernel CIFS subsystem and the userspace cifs-utils package.
An attacker can forge a "cifs.spnego" key in Linux keyring to make the kernel run a root userspace helper to escalate privileges of the attacker's process. | 2 656 |
| 19 |  Unix GC Remastered
Article by Moe Acherir about the internals of the new Unix sockets garbage collector implementation and the analysis of CVE-2025-40214, which was used in a kernelCTF entry. | 2 820 |
| 20 | PinTheft Linux LPE
Aaron Esau published an LPE exploit for a page double-free bug in the RDS zerocopy implementation, which can be turned into a page-cache overwrite through io_uring. | 2 461 |
