CVE-2026-53242

Summary of CVE-2026-53242 (Linux kernel) : The ALSA PCM code path in snd_pcm_drain() had a wait-queue handling flaw that could corrupt wait queue lists during linked-stream drain operations. Specifically, using init_waitqueue_entry without clearing prev/next, coupled with conditional add_wait_que...

CVE-2026-53242

In the Linux kernel, the following vulnerability has been resolved: ALSA: PCM: Fix wait queue list corruption in sndpcmdrain on linked streams sndpcmdrain uses initwaitqueueentry which does not clear entry.prev/next, and addwaitqueue with a conditional removewaitqueue that is skipped when tocheck...

CVE-2026-54233

vLLM is an inference and serving engine for large language models LLMs. Prior to 0.23.1rc0, vLLM's /v1/audio/transcriptions endpoint limits compressed upload size but not decoded PCM output. A 25MB OPUS file expands to 14.9GB of float32 PCM at decode time. This vulnerability is fixed in 0.23.1rc0...

CVE-2026-3196

An integer overflow vulnerability was found in the virtio-snd device via PCMINFO requests from the guest. A malicious guest can provide out-of-bounds stream counts, potentially leading to unbounded memory allocation on the host and a denial of service condition...

CVE-2026-3195

CVE-2026-3195 : In QEMU’s virtio-snd, the heap buffer overflow occurs in the input callback (virtio_snd_pcm_in_cb) due to an incomplete bounds/iov check. The Attackerkb entry reiterates that the function does not verify whether the iov can fit the data buffer, enabling a heap out-of-bounds write....

EUVD-2026-38042

An integer overflow vulnerability was found in the virtio-snd device via PCMINFO requests from the guest. A malicious guest can provide out-of-bounds stream counts, potentially leading to unbounded memory allocation on the host and a denial of service condition...

CVE-2026-3196

CVE-2026-3196 describes an integer overflow in the virtio-snd device triggered by PCM_INFO requests from a guest, causing unbounded host memory allocation and potential denial-of-service. Documented in multiple feeds (CVE listing, AttackersKB, OSV/Nessus advisories) indicates the vulnerability af...

CVE-2026-3196 Qemu-kvm: virtio-snd: integer overflow leading to unbounded memory allocation

An integer overflow vulnerability was found in the virtio-snd device via PCMINFO requests from the guest. A malicious guest can provide out-of-bounds stream counts, potentially leading to unbounded memory allocation on the host and a denial of service condition...

CVE-2026-3196

An integer overflow vulnerability was found in the virtio-snd device via PCMINFO requests from the guest. A malicious guest can provide out-of-bounds stream counts, potentially leading to unbounded memory allocation on the host and a denial of service condition...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: ALSA: emu10k1: Fixed an out-of-bounds access in sndemu10k1pcmchannelalloc The voice allocator sometimes begins allocating from near the end of the array, and then wraps around. However, the sndemu10k1pcmchannelalloc function...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: ALSA: pcm: Fix potential AB/BA lock issue with buffermutex and mmaplock syzbot detected a potential deadlock between the PCM’s runtime-buffermutex and the mm-mmaplock. This issue arose due to the recent fix related to racy...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: ALSA: pcm: Disabling bottom softirqs as part of spinlockirq on PREEMPTRT sndpcmgrouplockirq acquires a spinlockt and disables interrupts via spinlockirq. This also implicitly disables the handling of softirqs such as TIMERSOFTIRQ...

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

In the Linux kernel, the following vulnerability has been resolved: ALSA: pcm: Fixed a potential data race in the PCM memory allocation helpers The PCM memory allocation helpers include a sanity check to prevent too many buffer allocations. However, this check is performed without proper locking,...

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

In the Linux kernel, the following vulnerability has been resolved: ALSA: sh: aica: reordering cleanup operations to avoid UAF bugs The dreamcastcard-timer could schedule the spudmawork, and the spudmawork could also trigger the dreamcastcard-timer. When the sndpcmsubstream is closing, the...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: ASoC: soc-compress: Repositioned and added pcmmutex. If paniconwarn is set and the compress stream DPCM is initiated, then a kernel panic occurs because card-pcmmutex is not properly locked. In the following functions, a warni...

vLLM: OOM Denial of Service via Audio Decompression Bomb

Summary vLLM's /v1/audio/transcriptions endpoint limits compressed upload size but not decoded PCM output. A 25MB OPUS file expands to 14.9GB of float32 PCM at decode time. Tested on vLLM v0.19.0. Details SpeechToTextProcessor rejects uploads over VLLMMAXAUDIOCLIPFILESIZEMB default 25MB based on...

kernel: ALSA: aloop: Fix racy access at PCM trigger

In the Linux kernel, the following vulnerability has been resolved: ALSA: aloop: Fix racy access at PCM trigger The PCM trigger callback of aloop driver tries to check the PCM state and stop the stream of the tied substream in the corresponding cable. Since both check and stop operations are...

PT-2026-50489

Name of the Vulnerable Software and Affected Versions vLLM versions prior to 0.23.1rc0 Description The '/v1/audio/transcriptions' endpoint limits the size of compressed uploads but fails to limit the size of the decoded PCM Pulse Code Modulation output. PCM is an uncompressed digital audio format...

Security update for qemu

This update for qemu fixes the following issues: CVE-2025-14876: qemu-kvm: Unbounded allocation in virtio-crypto bsc1255400. CVE-2026-0665: out-of-bounds heap access can lead to a denial of service or potential memory corruption bsc1256484. CVE-2026-2243: incorrect bounds check leads to heap...

Security update for the Linux Kernel

The SUSE Linux Enterprise 11 SP4 kernel was updated to fix various security issues The following security issues were fixed: CVE-2026-23271: perf: Fix perfeventoverflow vs perfremovefromcontext race bsc1260018. CVE-2026-31402: nfsd: fix heap overflow in NFSv4.0 LOCK replay cache bsc1261638...