CVE-2026-64563_EXP

CVE-2026-64563EXP 실험 연구 전용이며, prefetch 및 nperm의 코드설정이 필요한 메모리 참조 set.gdb는 첨부되지 않았고, 최적화를 수행하지 않아 히트 확률이 낮습니다. 저자는 이 취약점의 작성자가 해당 취약점 관련 정보를 이미 공개했음을 확인했습니다: https://github.com/google/security-research/pull/414 이용 방식은 전혀 다릅니다. 해당 이용 방식을 완전히 검증하지 못했기 때문에 보수적인 입장을 유지합니다주로 sock 스핀락이 실제로 레이스 상태를 유발할 수...

CVE-2021-43267

CVE-2021-43267 CVE-2021-43267에 대한 로컬 PoC 익스플로잇 Linux TIPC 참고: https://haxx.in/posts/pwning-tipc/...

CVE-2022-0435-Poc

CVE-2022-0435스택 오버플로우 wget https://releases.ubuntu.com/jammy/ubuntu-22.04.5-live-server-amd64.iso mkdir kernel wget https://kernel.ubuntu.com/mainline/v5.13/amd64/linux-headers-5.13.0-051300-generic5.13.0-051300.202106272333amd64.deb wget...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: net/tipc: fixed the slab-use-after-free issue in tipcaeadencryptdone+0x4bd/0x510 net/tipc/crypto.c:840. Syzbot reported a slab-use-after-free with the following call trace:...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, Linux, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: rhashtable: It is necessary to clear the stale iter-p variable upon table restart. The rhashtablewalkstartcheck function has two restart paths when resuming a walk. When iter-walker.tbl is valid, it revalidates iter-p against...

Astra Linux – Vulnerability in Linux

In the Linux kernel, the following vulnerability has been resolved: tipc: skblinearize the head skb when reassembling msgs It’s not a good idea to append the frag skb to a skb’s fraglist if the fraglist already contains skbs from elsewhere. For example, this frag skb was created by pskbcopy, wher...

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

In the Linux kernel, the following vulnerabilities have been resolved: tipc: Check the bearer type before calling tipcudpnlbeareradd syzbot reported the following general protection fault 1: General protection fault, likely for non-canonical address 0xdffffc0000000010: 0000 1 PREEMPT SMP KASAN...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: tipc: Fixed the msg-req TLV len check in tipcnlcompatnametabledumpheader. This is a follow-up to commit 974cb0e3e7c9 “tipc: Fixed uninit-value in tipcnlcompatnametabledump“”, where a type cast from sizeof.. to int was required so...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, Linux, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: tipc: Fixed a use-after-free in the kernel socket during the cleanupbearer function. syzkaller reported a use-after-free of the UDP kernel socket in cleanupbearer. This issue occurred without any reprovisioning. When the...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: tipc: Fixed the underflow of bcackers when duplicate GRPACKMSG messages occur. The GRPACKMSG handler in tipcgroupprotorcv currently decrements bcackers for every inbound group ACK, even when the same member has already acknowledg...

Astra Linux – Vulnerability in Linux

In the Linux kernel, the following vulnerability has been resolved: tipc: Wait and exit until all work queues are completed On some hosts, a crash could occur simply by repeating these commands several times: bash modprobe tipc tipc bearer enable media udp name UDP1 localip 127.0.0.1 rmmod tipc T...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: In net:tIPC, there is a fix for the refcount warning in tipcaeadencrypt. The syzbot report identified a refcount warning 1 caused by calling getnet on a network namespace that is being destroyed refcount=0. This occurs when a TIP...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: tipc: Fixed an infinite loop in tipcnlcompatdumpit. The cmd-dumpit callback can return a negative errno, causing an infinite loop due to the whilelen condition. Since the loop never terminates, the genlmutex is never released, an...

kernel: tipc: fix double-free in tipc_buf_append()

A flaw was found in the Linux kernel's Transparent Inter-Process Communication TIPC module. This vulnerability, a double-free, occurs when the tipcbufappend function incorrectly handles memory after a socket buffer skb reallocation. An attacker could potentially exploit this to cause system...

CVE-2024-36886

N-Day 취약점 연구 개요 이 프로젝트는 Linux 커널의 N-Day 취약점 에 초점을 맞추며, 해당 취약점의 수명 주기 이해, 영향 분석, 완화 전략 탐구를 강조합니다. N-Day 취약점은 공개적으로 알려졌음에도 많은 시스템에서 패치되지 않은 채 남아 있는 결함으로, 공격자에게 고가치 공격 대상이 됩니다. 본 연구는 특정 Linux 커널 서브시스템을 조사하고 실제 취약점CVE-2024-36886을 평가하여 그 보안 영향을 입증하고 적시 패치 관리의 중요성을 강조합니다. 목표 Linux 커널 서브시스템과 잠재적 취약점에 대한...

kernel: tipc: fix double-free in tipc_buf_append()

A flaw was found in the Linux kernel's Transparent Inter-Process Communication TIPC module. This vulnerability, a double-free, occurs when the tipcbufappend function incorrectly handles memory after a socket buffer skb reallocation. An attacker could potentially exploit this to cause system...

Rocky Linux 8 [CIQ] Security Update: kernel-rt / kernel-rt-core / kernel-rt-debug / kernel-rt-debug-core / etc Multiple Vulnerabilities (crlsa-2025_15009)

The Rocky Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ crlsa-202515009 advisory. kernel: RDMA/iwcm: Fix use-after-free of work objects after cmid destruction CVE-2025-38211 kernel: tipc: Fix use-after-free in tipcconnclose CVE-2025-384...

Rocky Linux 9 [CIQ] Security Update: kernel / kernel-64k / kernel-64k-core / kernel-64k-debug / etc Multiple Vulnerabilities (crlsa-2026_49212)

The Rocky Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ crlsa-202649212 advisory. kernel: ipc: limit nextid allocation to the valid ID range CVE-2026-52923 kernel: tipc: fix double-free in tipcbufappend CVE-2026-52993 kernel: net: sched...

Rocky Linux 8 [CIQ] Security Update: bpftool / bpftool-debuginfo / kernel / kernel-abi-stablelists / etc Multiple Vulnerabilities (crlsa-2025_12752)

The Rocky Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ crlsa-202512752 advisory. kernel: HID: intel-ish-hid: Fix use-after-free issue in ishtphidremove CVE-2025-21928 kernel: memstick: rtsxusbms: Fix slab-use-after-free in...

Rocky Linux 8 [CIQ] Security Update: kernel-rt / kernel-rt-core / kernel-rt-debug / kernel-rt-debug-core / etc Multiple Vulnerabilities (crlsa-2026_45116)

The Rocky Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ crlsa-202645116 advisory. kernel: KVM: x86: Don't recheck L1 intercepts when completing userspace I/O CVE-2025-40026 kernel: xfrm single-frag length not properly limited kernel: dm...