CVE-2026-74504

In the Linux kernel, the following vulnerability has been resolved: ALSA: seq: Fix division by zero in initializetimer A userspace-driven ALSA timer SNDUTIMER lets an unprivileged user set the backing sndtimer's hardware resolution to an arbitrary 64-bit value via SNDRVTIMERIOCTLCREATE...

CVE-2026-74504

Summary (CVE-2026-74504): The Linux kernel ALSA sequencing timer (SND_UTIMER) can be driven by an unprivileged user to set arbitrary 64‑bit hardware resolution for snd_timer via SNDRV_TIMER_IOCTL_CREATE. When bound to a sequencer queue, initialize_timer() computes tmr->ticks = 1_000_000_000 / ...

CVE-2026-74504 ALSA: seq: Fix division by zero in initialize_timer()

In the Linux kernel, the following vulnerability has been resolved: ALSA: seq: Fix division by zero in initializetimer A userspace-driven ALSA timer SNDUTIMER lets an unprivileged user set the backing sndtimer's hardware resolution to an arbitrary 64-bit value via SNDRVTIMERIOCTLCREATE...

CVE-2026-74388

In the Linux kernel, the following vulnerability has been resolved: ALSA: seq: oss: Fix UAF at handling events with embedded SysEx data The OSS sequencer processes the input MIDI bytes into a sequencer event to be dispatched later in sndseqossmidiputc called from sndseqossprocessevent. When it's ...

EUVD-2026-59535

In the Linux kernel, the following vulnerability has been resolved: ALSA: seq: oss: Fix UAF at handling events with embedded SysEx data The OSS sequencer processes the input MIDI bytes into a sequencer event to be dispatched later in sndseqossmidiputc called from sndseqossprocessevent. When it's ...

CVE-2026-74388 ALSA: seq: oss: Fix UAF at handling events with embedded SysEx data

In the Linux kernel, the following vulnerability has been resolved: ALSA: seq: oss: Fix UAF at handling events with embedded SysEx data The OSS sequencer processes the input MIDI bytes into a sequencer event to be dispatched later in sndseqossmidiputc called from sndseqossprocessevent. When it's ...

CVE-2026-74388

Summary of CVE-2026-74388 (Linux kernel, ALSA: seq: oss): A use-after-free in the OSS MIDI SysEx handling was fixed. The OSS sequencer’s SysEx events contained a pointer to original data, which could be freed if a port closed concurrently before dispatch. The fix adds a reference-counting mechani...

CVE-2026-74388 ALSA: seq: oss: Fix UAF at handling events with embedded SysEx data

In the Linux kernel, the following vulnerability has been resolved: ALSA: seq: oss: Fix UAF at handling events with embedded SysEx data The OSS sequencer processes the input MIDI bytes into a sequencer event to be dispatched later in sndseqossmidiputc called from sndseqossprocessevent. When it's ...

CVE-2026-74339

The CVE-2026-74339 entry describes a Linux kernel ALSA seq vulnerability in snd_seq_read where a queued variable-length event header could reveal a kernel address via data.ext.ptr, because the read path did not clear the temporary header pointer before copy_to_user. The fix involves clearing that...

CVE-2026-74261 ALSA: seq: avoid stale FIFO cells during resize

In the Linux kernel, the following vulnerability has been resolved: ALSA: seq: avoid stale FIFO cells during resize sndseqfiforesize still needs to publish the replacement pool before it waits for FIFO users. A blocking sndseqread holds f-uselock while it sleeps, so concurrent senders must be abl...

CVE-2026-74261

CVE-2026-74261 — In the Linux kernel ALSA sequencer, a bug during fifo pool resize could leave stale cells and block pool teardown. The issue stems from snd_seq_fifo_resize() waiting for the replacement pool while a reader holds f->use_lock, and race conditions where events can be duplicated o...

PT-2026-72824

In the Linux kernel, the following vulnerability has been resolved: ALSA: seq: oss: Fix UAF at handling events with embedded SysEx data The OSS sequencer processes the input MIDI bytes into a sequencer event to be dispatched later in snd seq oss midi putc called from snd seq oss process event. Wh...

CVE-2026-68202

A flaw was found in the Linux kernel's ALSA Advanced Linux Sound Architecture sequencer component. An unprivileged local user with access to the sound device can exploit a timing window during the cleanup of a queue timer. This allows the user to re-open a timer that has already been closed,...

CVE-2026-68202

CVE-2026-68202 affects the Linux kernel’s ALSA sequencer. A race in queue timer cleanup allows an unprivileged local user with access to /dev/snd/seq to re-open a timer that has just been closed, leading to a use-after-free of the timer/queue object and a potential crash or, in theory, arbitrary ...

EUVD-2026-55303

In the Linux kernel, the following vulnerability has been resolved: ALSA: seq: close a re-opened queue timer in the destructor queuedelete closes the queue timer, then frees it. sndseqtimerclose clears q-timer-timeri. snduselocksync then drains borrowers, and sndseqtimerdelete frees q-timer. A...

Astra Linux – Vulnerability found in Linux 6.12, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: mfd: arizona: Fixed a regulator resource leak caused by a failure in wm5102clearwritesequencer. The wm5102clearwritesequencer helper function may return an error and simply terminate, bypassing the cleanup sequence. This results ...

CVE-2026-64479

A flaw was found in the Linux kernel's Advanced Linux Sound Architecture ALSA sequencer. This vulnerability allows an unprivileged local user to trigger a heap information leak in the sndseqeventdup function. By reading from /dev/snd/seq, an attacker can obtain 4 bytes of uninitialized kernel hea...

EUVD-2026-48823

In the Linux kernel, the following vulnerability has been resolved: ALSA: seq: Fix uninitialised heap leak in sndseqeventdup sndseqeventdup copies an incoming event into a pool cell and, in the UMP-enabled build, clears the trailing cell-ump.raw.extra word that the memcpy did not cover. The guard...

CVE-2026-64479

In the Linux kernel, the following vulnerability has been resolved: ALSA: seq: Fix uninitialised heap leak in sndseqeventdup sndseqeventdup copies an incoming event into a pool cell and, in the UMP-enabled build, clears the trailing cell-ump.raw.extra word that the memcpy did not cover. The guard...

CVE-2026-64029

A flaw was found in the Advanced Linux Sound Architecture ALSA sequencer component of the Linux kernel. This vulnerability, a use-after-free, occurs because of improper synchronization when handling Universal MIDI Packet UMP output. A local attacker could exploit this by creating a specific timin...