CVE-2022-41218

はじめに 本脆弱性は、drivers/media/dvb-core/dmxdev.c に存在する競合状態の脆弱性です。 そのため、この dmxdev を使用する usb デバイスドライバでは競合状態が発生する可能性があります。 この脆弱性は、3つの UAF を引き起こすために使用される可能性があります。 脆弱性 1. vmalloc UAF 書き込み まず、エクスプロイトの順序は次のとおりです（drivers/media/usb/ttusb-dec/ttusbdec.c を使用してデバッグしました）： cpu0 cpu1 cpu 2 1. dvbdvropen 2...

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

In the Linux kernel, the following vulnerabilities have been resolved: media: vidtv: Terminating the subsequent process due to initialization failure. syzbot reported a slab-use-after-free error in vidtvmuxinit. After PSI initialization fails, the si member is accessed again, resulting in this...

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

A issue was discovered in the Linux kernel through version 6.0.9. In the file drivers/media/dvb-core/dvbnet.c, there is a race condition between .disconnect and dvbdeviceopen, which leads to a use-after-free situation...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: Media: dvb-core: Fixed an issue where incorrect reinitializations of the ringbuffer occurred upon reopening the device. The dvbdvropen function calls dvbringbufferinit, when a new reader opens the DVR device. dvbringbufferinit th...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: media: dvb-core: The double-free operation in dvbregisterdevice has been fixed. In the function dvbregisterdevice - dvbregistermediadevice - dvbcreatemediaentity, the dvb-entity is allocated and initialized. If the initialization...

Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-013588)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013588 advisory. In the Linux kernel, the following vulnerability has been resolved: media: vidtv: Fix use-after-free in vidtvbridgedvbinit KASAN reports a use-after-free: BUG: KASAN...

Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-011309)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-011309 advisory. In the Linux kernel, the following vulnerability has been resolved: media: vidtv: Fix use-after-free in vidtvbridgedvbinit KASAN reports a use-after-free: BUG: KASAN...

The vulnerability of the dvb_ringbuffer_init() function in the drivers/media/dvb-core/dmxdev.c module of the Linux kernel allows a hacker to cause a service failure.

The vulnerability of the dvbringbufferinit function in the drivers/media/dvb-core/dmxdev.c module of the Linux kernel is related to improper resource management throughout its lifecycle. Exploiting this vulnerability could allow an attacker to cause a service failure...

media: dvb-core: fix wrong reinitialization of ringbuffer on reopen

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SUSE CVE-2026-23253

In the Linux kernel, the following vulnerability has been resolved: media: dvb-core: fix wrong reinitialization of ringbuffer on reopen dvbdvropen calls dvbringbufferinit when a new reader opens the DVR device. dvbringbufferinit calls initwaitqueuehead, which reinitializes the waitqueue list head...

EUVD-2026-12860

In the Linux kernel, the following vulnerability has been resolved: media: dvb-core: fix wrong reinitialization of ringbuffer on reopen dvbdvropen calls dvbringbufferinit when a new reader opens the DVR device. dvbringbufferinit calls initwaitqueuehead, which reinitializes the waitqueue list head...

CVE-2026-23253

In the Linux kernel, the following vulnerability has been resolved: media: dvb-core: fix wrong reinitialization of ringbuffer on reopen dvbdvropen calls dvbringbufferinit when a new reader opens the DVR device. dvbringbufferinit calls initwaitqueuehead, which reinitializes the waitqueue list head...

AZL-80079 CVE-2026-23253 affecting package kernel for versions less than 6.6.130.1-1

In the Linux kernel, the following vulnerability has been resolved: media: dvb-core: fix wrong reinitialization of ringbuffer on reopen dvbdvropen calls dvbringbufferinit when a new reader opens the DVR device. dvbringbufferinit calls initwaitqueuehead, which reinitializes the waitqueue list head...

CVE-2026-23253

In the Linux kernel, the following vulnerability has been resolved: media: dvb-core: fix wrong reinitialization of ringbuffer on reopen dvbdvropen calls dvbringbufferinit when a new reader opens the DVR device. dvbringbufferinit calls initwaitqueuehead, which reinitializes the waitqueue list head...

UBUNTU-CVE-2026-23253

In the Linux kernel, the following vulnerability has been resolved: media: dvb-core: fix wrong reinitialization of ringbuffer on reopen dvbdvropen calls dvbringbufferinit when a new reader opens the DVR device. dvbringbufferinit calls initwaitqueuehead, which reinitializes the waitqueue list head...

CVE-2026-23253

In the Linux kernel, the following vulnerability has been resolved: media: dvb-core: fix wrong reinitialization of ringbuffer on reopen dvbdvropen calls dvbringbufferinit when a new reader opens the DVR device. dvbringbufferinit calls initwaitqueuehead, which reinitializes the waitqueue list head...

CVE-2026-23253

CVE-2026-23253 affects the Linux kernel dvb-core/dvb_dvr_open path where reinitializing the shared dvr_buffer waitqueue via dvb_ringbuffer_init() could leave stale waitqueue entries. The fix uses direct data/size assignment and calls dvb_ringbuffer_reset() instead, avoiding waitqueue/spinlock tou...

CVE-2026-23253 media: dvb-core: fix wrong reinitialization of ringbuffer on reopen

In the Linux kernel, the following vulnerability has been resolved: media: dvb-core: fix wrong reinitialization of ringbuffer on reopen dvbdvropen calls dvbringbufferinit when a new reader opens the DVR device. dvbringbufferinit calls initwaitqueuehead, which reinitializes the waitqueue list head...

CVE-2026-23253 media: dvb-core: fix wrong reinitialization of ringbuffer on reopen

In the Linux kernel, the following vulnerability has been resolved: media: dvb-core: fix wrong reinitialization of ringbuffer on reopen dvbdvropen calls dvbringbufferinit when a new reader opens the DVR device. dvbringbufferinit calls initwaitqueuehead, which reinitializes the waitqueue list head...

CVE-2026-23253: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: media: dvb-core: fix wrong reinitialization of ringbuffer on reopen dvbdvropen calls dvbringbufferinit when a new reader opens the DVR device. dvbringbufferinit calls initwaitqueuehead, which reinitializes the waitqueue list head...