CVE-2023-5178

CVE-2023-5178 इसके लिए एक्सप्लॉइट CVE-2023-5178: NVMe-oF-TCP कमजोरी, जो NVMe-oF-TCP ड्राइवर में दूषित Initialize Connection Request को संभालने के दौरान एक तार्किक त्रुटि है। यह racy double-free in kmalloc-96 की ओर ले जाता है, जिसका उपयोग LPE प्राप्त करने के लिए किया जा सकता है नीचे डेमो देखें।...

CVE-2026-11108-Integer-Overflow-in-Memory-Allocator-kmalloc-Sim-

CVE-2026-11108 – تجاوز سعة العدد الصحيح في أداة تخصيص الذاكرة kmalloc Sim كود البرنامج C root@kitploit: // allocsim.c - Vulnerable memory allocator include include include define MAXBLOCK 1024 void mymallocsizet size sizet total = size + sizeofsizet; // header if total MAXBLOCK return NULL; void...

Linux_LPE_io_uring_CVE-2021-41073

LinuxLPEiouringCVE-2021-41073 استغلال LPE لثغرة CVE-2021-41073 في iouring من نوع confusion type. اطّلع على الشرح التقني Put an iouring on it: Exploiting the Linux Kernel. المؤلف: @chompie1337 لأغراض تعليمية/بحثية فقط. ليس للاستخدام في الاختبارات أو التقييمات الأمنية. للبناء يتطلب liburing:...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-098772)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-098772 advisory. In the Linux kernel, the following vulnerability has been resolved: btrfs: fix btrfsioctlspaceinfo slotcount TOCTOU which can lead to info-leak btrfsioctlspaceinfo h...

Astra Linux – Vulnerability found in Linux 5.15, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: Issue: overlay – Fix null pointer dereferencing in finddupcsetnodeentry and finddupcsetprop. When kmalloc fails to allocate memory in kasprintf, fn1 or fn2 will be NULL, and strcmp will cause a null pointer dereference...

Astra Linux – Vulnerability found in Linux 5.15, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: media: coda: A check for kmalloc has been added. Since kmalloc may return a NULL pointer, it is better to check the return value to avoid dereferencing a NULL pointer, just like with the other cases...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: iouring: add a schedule point in ioaddbuffers Looping 65535 times doing kmalloc calls can trigger soft lockups, especially with DEBUG features like KASAN. 253.536212 watchdog: BUG: soft lockup - CPU64 stuck for 26s!...

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: exfat: Use kvmallocarray/kvfree instead of kmallocarray/kfree. The call stack shown below represents a scenario in the Linux 4.19 kernel. Memory allocation failed for the exfat file system, due to system memory fragmentation...

Astra Linux – Vulnerability in Linux

A issue was discovered in the Linux kernel before version 5.8.10. The file virt/kvm/kvmmain.c contains a memory leak in kvmiobusunregisterdev due to a kmalloc failure, identified as CID-f65886606c2d...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: mm/slub: Fixed the issue by returning errno if kmalloc fails. In createuniqueid, kmalloc, GFPKERNEL may fail due to out-of-memory conditions. If this happens, errno should be returned correctly instead of triggering a panic via...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: net: Handling of integer overflows in kmallocreserve The committed change was as follows: c ptr = kmallocsize; if ptr size = ksizeptr; size = kmallocsizeroundupsize; ptr = kmallocsize; This caused various crashes, as reported ...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: udmabuf: validate ubuf-pagecount Syzbot reported a GPF in sgallocAppendTableFromPages. The problem lies in ubuf-pages == ZEROPTR. ubuf-pagecount is calculated based on arguments passed from user-space. If the user creates an...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: Check for a potential null return from kmallocarray. Since kmallocarray may return null, the use of 'eventwaitersi.wait' could lead to a null pointer derefrence. Therefore, it is better to check the return value of...

CVE-2026-74576

A flaw was found in the Linux kernel's memory management. This vulnerability allows for unbounded recursion in the slab free path, a process where the kernel manages and releases small blocks of memory. When certain kernel memory allocation caches kmalloc caches form a cycle during internal data...

CVE-2026-74576

In the Linux kernel, the following vulnerability has been resolved: mm/slab: prevent unbounded recursion in free path with new kmalloc type Commit 280ea9c3154b "mm/slab: avoid allocating slabobjext array from its own slab" avoided recursive allocation of objexts from kmalloc caches of the same...

CVE-2026-74576

In the Linux kernel, the following vulnerability has been resolved: mm/slab: prevent unbounded recursion in free path with new kmalloc type Commit 280ea9c3154b "mm/slab: avoid allocating slabobjext array from its own slab" avoided recursive allocation of objexts from kmalloc caches of the same...

UBUNTU-CVE-2026-74576

In the Linux kernel, the following vulnerability has been resolved: mm/slab: prevent unbounded recursion in free path with new kmalloc type Commit 280ea9c3154b "mm/slab: avoid allocating slabobjext array from its own slab" avoided recursive allocation of objexts from kmalloc caches of the same...

CVE-2026-74456

In the Linux kernel, the following vulnerability has been resolved: can: peakusb: peakusbstart: fix double free of transfer buffer on URB submit error In peakusbstart, each RX URB transfer buffer is allocated with kmalloc and the URB is flagged URBFREEBUFFER so that the final usbfreeurb also free...

UBUNTU-CVE-2026-74528

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcisync: hold conn in hcipastsync callback Avoids giving freed pointers to hciconnvalid, which kmalloc may have reused. Hold refcount to avoid that...

CVE-2026-74576

Summary of CVE-2026-74576 (Linux kernel) : The vulnerability stems from the slab allocator allowing unbounded recursion in the free path due to cycles formed when obj_exts arrays are allocated across KMALLOC_NORMAL caches. Specifically, slabs can form a cycle by allocating each other’s obj_exts a...