Important: Red Hat Security Advisory: libevent security update

An update for libevent is now available for Red Hat Enterprise Linux 8. 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...

libevent: Libevent: Arbitrary code execution via heap out-of-bounds write in AF_UNIX handling

A flaw was found in Libevent. A heap out-of-bounds write vulnerability in the buffereventsocketsetconnaddress function allows an unauthenticated local peer to achieve arbitrary code execution. By connecting to an AFUNIX listener, an attacker can overwrite critical heap data, leading to memory...

CVE-2026-90037

In the Linux kernel, the following vulnerability has been resolved: NFSD: Prevent client use-after-free during closelru reaping An nfs4openowner left on nn-closelru after its final CLOSE keeps its last closed stateid in oolastclosedstid, holding only a raw pointer to its nfs4client. The laundroma...

CVE-2026-89998

In the Linux kernel, the following vulnerability has been resolved: dm: fix race when loading and unloading a table If the userspace calls two concurrent table load ioctls and one of them succeeds and the other fails, there is a race condition because dmsetupmdqueue walks &md-tabledevices without...

CVE-2026-89816

In the Linux kernel, the following vulnerability has been resolved: drm: Fix drmcrtccommit leak if signaled when PAGEFLIPEVENT is used Commit 1c6ceeee6ebb "drm/atomic: Fix memleak on ERESTARTSYS during non-blocking commits" fixed a very similar issue when the event was allocated by...

RHEL 8 : libevent (RHSA-2026:67908)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:67908 advisory. The libevent packages provide an abstract asynchronous event notification library. Security Fixes: libevent: Libevent: Denial of Service vi...

ALSA-2026:67909 Important: libevent security update

The libevent packages provide an abstract asynchronous event notification library. Security Fixes: libevent: Libevent: Denial of Service via malformed RPC data CVE-2026-63383 libevent: Libevent: Off-by-one stack buffer overflow leading to denial of service or data corruption CVE-2026-63387...

RHEL 9 : libevent (RHSA-2026:67910)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:67910 advisory. The libevent packages provide an abstract asynchronous event notification library. Security Fixes: libevent: Libevent: Denial of Service vi...

Important: libevent security update

The libevent packages provide an abstract asynchronous event notification library. Security Fixes: libevent: Libevent: Denial of Service via malformed RPC data CVE-2026-63383 libevent: Libevent: Off-by-one stack buffer overflow leading to denial of service or data corruption CVE-2026-63387...

RHEL 10 : libevent (RHSA-2026:67909)

The remote Redhat Enterprise Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:67909 advisory. The libevent packages provide an abstract asynchronous event notification library. Security Fixes: libevent: Libevent: Denial of Service v...

ALSA-2026:67910 Important: libevent security update

The libevent packages provide an abstract asynchronous event notification library. Security Fixes: libevent: Libevent: Denial of Service via malformed RPC data CVE-2026-63383 libevent: Libevent: Off-by-one stack buffer overflow leading to denial of service or data corruption CVE-2026-63387...

Important: libevent security update

The libevent packages provide an abstract asynchronous event notification library. Security Fixes: libevent: Libevent: Denial of Service via malformed RPC data CVE-2026-63383 libevent: Libevent: Off-by-one stack buffer overflow leading to denial of service or data corruption CVE-2026-63387...

ALSA-2026:67908 Important: libevent security update

The libevent packages provide an abstract asynchronous event notification library. Security Fixes: libevent: Libevent: Denial of Service via malformed RPC data CVE-2026-63383 libevent: Libevent: Off-by-one stack buffer overflow leading to denial of service or data corruption CVE-2026-63387...

kernel: af_unix: Set gc_in_progress to true in unix_gc()

A flaw was found in the Linux kernel's afunix component. A race condition exists within the unixgc garbage collection function where the gcinprogress flag may not be correctly set. This could lead to unixpeekfpl misinterpreting garbage collection status when handling MSGPEEK operations, potential...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: iouring/afunix: disabling the sending of iouring via sockets File reference cycles have caused many problems for iouring in the past. It still doesn’t work correctly, and it causes race conditions with unixstreamreadgeneric. The...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: afunix: Do not use GC if MSGPEEK occurred. Igor Ushakov reported that GC purged the receive queue of a live socket due to a race with MSGPEEK, with a fix provided. This is exactly the same issue that was previously fixed in the...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: afunix: fixed the issue of struct pid leaks in OOB support. The issue arises from queueoob calling maybeaddcreds, which potentially holds a reference to a pid. However, the destructor of skb is not set either directly or by...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: afunix: Fixed a data race in unixdgrampeerwakeme. In unixdgrampoll, unixdgrampeerwakeme is called without ensuring that the other lock is held, and there is no check to see if the receive queue is full. In this case, we need t...

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

In the Linux kernel, the following vulnerabilities have been resolved: afunix: Fixed data races related to user-unixinflight. user-unixinflight is updated under spinlockunixgclock, but toomanyunixfds reads it without locking. Let’s annotate the write/read accesses to user-unixinflight. BUG: KCSAN...

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

In the Linux kernel, the following vulnerability has been resolved: afunix: Fixed data race conditions in unixreleasesock/unixstreamsendmsg. A data race condition was identified in afunix. In one data path, the write function unixreleasesock atomically writes to sk-skshutdown using WRITEONCE...