CVE-2026-54904

A flaw was found in concurrent-ruby. A remote attacker could exploit a vulnerability in the Concurrent::AtomicReferenceupdate method, which can enter a permanent busy retry loop. This occurs when the current value is a special 'Not a Number' Float::NAN floating-point value, causing the method to...

CVE-2026-54904

concurrent-ruby is a modern concurrency tools for Ruby. Prior to 1.3.7, Concurrent::AtomicReferenceupdate can enter a permanent busy retry loop when the current value is Float::NAN. The issue is caused by the interaction between AtomicReferenceupdate, which retries until compareandsetoldvalue,...

CVE-2026-54904 concurrent-ruby: `AtomicReference#update` livelocks when the stored value is `Float::NAN`

concurrent-ruby is a modern concurrency tools for Ruby. Prior to 1.3.7, Concurrent::AtomicReferenceupdate can enter a permanent busy retry loop when the current value is Float::NAN. The issue is caused by the interaction between AtomicReferenceupdate, which retries until compareandsetoldvalue,...

CVE-2026-54904

Technical details for CVE-2026-54904 are not publicly available in the provided documents. No affected versions, root cause, or fixes are described beyond the initial entry. Monitor for updates.

Infinite loop

Overview Affected versions of this package are vulnerable to Infinite loop in the AtomicReferenceupdate function when the current value is Float::NAN. An attacker can cause indefinite busy retry loops and CPU exhaustion by supplying malicious numeric data. Remediation Upgrade concurrent-ruby to...

Concurrent Ruby : `AtomicReference#update` livelocks when the stored value is `Float::NAN`

Summary Concurrent::AtomicReferenceupdate can enter a permanent busy retry loop when the current value is Float::NAN. The issue is caused by the interaction between: - AtomicReferenceupdate, which retries until compareandsetoldvalue, newvalue succeeds. - Numeric compareandset, which checks old ==...

GHSA-H8W8-99G7-QMVJ Concurrent Ruby : `AtomicReference#update` livelocks when the stored value is `Float::NAN`

Summary Concurrent::AtomicReferenceupdate can enter a permanent busy retry loop when the current value is Float::NAN. The issue is caused by the interaction between: - AtomicReferenceupdate, which retries until compareandsetoldvalue, newvalue succeeds. - Numeric compareandset, which checks old ==...

PT-2026-51090

Name of the Vulnerable Software and Affected Versions concurrent-ruby versions prior to 1.3.7 Description The Concurrent::AtomicReferenceupdate function can enter a permanent busy retry loop when the current value is Float::NAN. This occurs due to the interaction between AtomicReferenceupdate,...

Concurrent Ruby - `AtomicReference#update` livelocks when the stored value is `Float::NAN`

Summary Concurrent::AtomicReferenceupdate can enter a permanent busy retry loop when the current value is Float::NAN. The issue is caused by the interaction between: - AtomicReferenceupdate, which retries until compareandsetoldvalue, newvalue succeeds. - Numeric compareandset, which checks old ==...

CVE-2025-39826

In the Linux kernel, the following vulnerability has been resolved: net: rose: convert 'use' field to refcountt The 'use' field in struct roseneigh is used as a reference counter but lacks atomicity. This can lead to race conditions where a roseneigh structure is freed while still being reference...

CVE-2025-39826 net: rose: convert 'use' field to refcount_t

In the Linux kernel, the following vulnerability has been resolved: net: rose: convert 'use' field to refcountt The 'use' field in struct roseneigh is used as a reference counter but lacks atomicity. This can lead to race conditions where a roseneigh structure is freed while still being reference...

SUSE CVE-2024-26583

In the Linux kernel, the following vulnerability has been resolved: tls: fix race between async notify and socket close The submitting thread one which called recvmsg/sendmsg may exit as soon as the async crypto handler calls complete so any code past that point risks touching already freed data...

CVE-2024-26583 tls: fix race between async notify and socket close

In the Linux kernel, the following vulnerability has been resolved: tls: fix race between async notify and socket close The submitting thread one which called recvmsg/sendmsg may exit as soon as the async crypto handler calls complete so any code past that point risks touching already freed data...

DEBIAN-CVE-2023-52439

In the Linux kernel, the following vulnerability has been resolved: uio: Fix use-after-free in uioopen core-1 core-2 ------------------------------------------------------- uiounregisterdevice uioopen idev = idrfind deviceunregister&idev-dev putdevice&idev-dev uiodevicerelease getdevice&idev-dev...

The vulnerability of the AtomicReferenceArray class implementation in the Concurrency component of the Java Runtime Environment allows a malicious actor to trigger a service failure.

The vulnerability of the AtomicReferenceArray class implementation in the Java Runtime Environment concurrency component is related to errors in object type handling. Exploiting this vulnerability can allow an attacker to cause service failures remotely...

OpenJDK: AtomicReferenceFieldUpdater missing primitive type check (Libraries, 8039520)

Unspecified vulnerability in Oracle Java SE 5.0u65, 6u75, 7u60, and 8u5 allows remote attackers to affect confidentiality, integrity, and availability via unknown vectors related to Libraries...

OpenJDK: AtomicReferenceFieldUpdater missing primitive type check (Libraries, 8039520)

Unspecified vulnerability in Oracle Java SE 5.0u65, 6u75, 7u60, and 8u5 allows remote attackers to affect confidentiality, integrity, and availability via unknown vectors related to Libraries...

OpenJDK: AtomicReferenceFieldUpdater missing primitive type check (Libraries, 8039520)

Unspecified vulnerability in Oracle Java SE 5.0u65, 6u75, 7u60, and 8u5 allows remote attackers to affect confidentiality, integrity, and availability via unknown vectors related to Libraries...

OpenJDK: AtomicReferenceFieldUpdater missing primitive type check (Libraries, 8039520)

Unspecified vulnerability in Oracle Java SE 5.0u65, 6u75, 7u60, and 8u5 allows remote attackers to affect confidentiality, integrity, and availability via unknown vectors related to Libraries...

OpenJDK: AtomicReferenceFieldUpdater missing primitive type check (Libraries, 8039520)

Unspecified vulnerability in Oracle Java SE 5.0u65, 6u75, 7u60, and 8u5 allows remote attackers to affect confidentiality, integrity, and availability via unknown vectors related to Libraries...