532238 matches found
kernel: drm/amdgpu/vce: fix integer overflow in image size
A flaw was found in the drm/amdgpu/vce component of the Linux kernel. Malicious VCE Video Codec Engine command streams with oversized dimensions can cause a 32-bit integer overflow. This overflow bypasses validation, allowing the GPU firmware to perform out-of-bound memory access. This could lead...
kernel: drm/amdgpu/vcn4: Prevent OOB reads when parsing dec msg
A flaw was found in the Linux kernel's drm/amdgpu/vcn4 component. This vulnerability allows an attacker to trigger an out-of-bounds OOB read when parsing decoder messages due to insufficient bounds checking. This could lead to information disclosure, potentially revealing sensitive data from memo...
kernel: drm/xe: Hold a dma-buf reference for imported BOs
A flaw was found in the drm/xe component of the Linux kernel. This vulnerability, a use-after-free, occurs because a dma-buf Direct Memory Access Buffer reference is not properly held for imported Buffer Objects BOs. If the exporter of a dma-buf is freed while a BO still references its reservatio...
kernel: netfilter: nf_queue: hold bridge skb->dev while queued
A flaw was found in the Linux kernel's netfilter component. This vulnerability occurs because a queued bridge packet can retain a freed bridge master in its skb-dev field until it is reinjected. When the packet is later reinjected, the system attempts to use the freed bridge master, leading to a...
kernel: drm/amdgpu: Fix context pstate override handling
A flaw was found in the Linux kernel's amdgpu graphics driver. Improper handling of context pstate overrides can lead to use-after-free and NULL pointer dereferences during context initialization and finalization. A local attacker could exploit this vulnerability to cause system instability or a...
kernel: drm/xe/rtp: Add RING_FORCE_TO_NONPRIV_DENY to OA whitelists
A flaw was found in the drm/xe/rtp component of the Linux kernel. This vulnerability arises from the unconditional whitelisting of Output/Availability OA registers, which is a security violation. By default, these registers could be whitelisted after system events such as probe, graphics...
kernel: accel/ivpu: Add buffer overflow check in MS get_info_ioctl
A flaw was found in the Linux kernel's accel/ivpu component. This vulnerability, a buffer overflow, occurs when the firmware returns a size larger than the allocated buffer during a metric stream information query. This can lead to an incorrect buffer copy, potentially causing system instability ...
kernel: drm/amdgpu/vcn4: Prevent OOB reads when parsing IB
A flaw was found in the Linux kernel's AMD GPU Graphics Processing Unit driver, specifically within the drm/amdgpu/vcn4 component. This vulnerability allows for an out-of-bounds read when processing an Instruction Buffer IB. An attacker could potentially exploit this to read sensitive information...
Important: Red Hat Security Advisory: kernel security, bug fix, and enhancement update
An update for kernel is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from th...
kernel: drm/virtio: use uninterruptible resv lock for plane updates
A flaw was found in the Linux kernel's VirtIO GPU Graphics Processing Unit driver. The virtiogpucursorplaneupdate and virtiogpuresourceflush functions fail to properly acquire a required lock, which can lead to a race condition. A local user could exploit this vulnerability by triggering a memory...
kernel: drm/amdkfd: fix 32-bit overflow in CWSR total size calculation
A flaw was found in the Linux kernel's drm/amdkfd component. An integer overflow vulnerability exists in the calculation of a memory allocation size. When processing large input values, this calculation can result in an undersized memory region, which can then be overrun by firmware. This could...
kernel: drm/xe/eustall: Fix drm_dev_put called before stream disable in close
A flaw was found in the Linux kernel's drm/xe/eustall component. This vulnerability occurs because the drmdevput function is called before a stream is disabled and its resources are freed within xeeustallstreamclose. This timing issue can lead to a use-after-free condition, where device structure...
kernel: drm/amdgpu/userq: fix access to stale wptr mapping
A flaw was found in the Linux kernel. This vulnerability, located in the drm/amdgpu/userq component, involves improper handling of memory mappings. A local attacker could potentially exploit a race condition during queue creation, where a memory object is unmapped while another is being assigned ...
kernel: fbcon: Set fb_display[i]->mode to NULL when the mode is released
A use-after-free vulnerability was identified in the Linux kernel framebuffer console fbcon subsystem. During framebuffer unregistration, the kernel freed the memory for a display mode but did not clear the corresponding fbdisplayi-mode pointer. Subsequent framebuffer ioctl operations could then...
kernel: pppoe: reload header pointer after dev_hard_header()
A flaw was found in the Linux kernel's PPPoE Point-to-Point Protocol over Ethernet implementation. This vulnerability occurs because a pointer to network packet data is not updated after memory is reallocated, leading to the use of an outdated memory address. An attacker with local access could...
CVE-2019-18885
CVE-2019-18885 CVE-2019-18885 bobfuzzer Miembros del Equipo Información Resumen Objetivo Reproducir Causas del Error Vista del Depurador Registros de KASAN Agradecimientos bobfuzzer equipo del proyecto en BoB también conocido como Best of the Best, República de Corea. [email protected]...
CVE-2021-33624
Prueba de Concepto para CVE-2021-33624 compilar con gcc -pthread -o bpfspectretypeconfusion bpfspectretypeconfusion.c -Wall -ggdb -std=gnu99 ejecutar con sudo ./bpfspectretypeconfusion 1 2 ffffffffa4925620 0x10 donde 1 y 2 son hilos de CPU que se ejecutan en dos núcleos de hardware distintos,...
kernel-exploits
Exploits del kernel Varios exploits del kernel CVE-2021-22555 Exploit local de root en Linux. Versión actualizada del exploit de theflow para CVE-2021-22555. Se descubrió una escritura fuera de los límites del heap que afecta a Linux desde v2.6.19-rc1 en net/netfilter/xtables.c. Esto permite a un...
LARE
LARE L ocal A uto R oot E xploiter es un script bash simple que te ayuda a desplegar exploits de root locales desde tu máquina atacante cuando tu máquina víctima no tiene conectividad a internet. El script es útil en un escenario donde tu máquina víctima no tiene conexión a internet por ejemplo...