Linux Distros Unpatched Vulnerability : CVE-2026-31575

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - mm/userfaultfd: fix hugetlb fault mutex hash calculation In mfillatomichugetlb, linearpageindex is used to calculate the page index for hugetlbfaultmutexhash...

Libgcrypt 1.12.2

Libgcrypt is a general-purpose cryptographic library based on the code from GnuPG. It provides functions for all cryptographic building blocks: symmetric ciphers AES, DES, Blowfish, CAST5, Twofish, and Arcfour, hash algorithms MD4, MD5, RIPE-MD160, SHA-1, and TIGER-192, MACs HMAC for all hash...

Linux kernel 安全漏洞

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from an error in the hash calculation of the fault mutex lock in the mmuserfaultfd mechanism. This err...

PT-2026-34927

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description In the mfill atomic hugetlb function, the linear page index function is used to calculate the page index for hugetlb fault mutex hash. Because linear page index returns the index in PAGE...

PT-2026-34898

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A NULL pointer dereference exists in the bonding network subsystem. The function bond debug rlb hash show accesses client info-slave without verifying if the value is NULL. This occurs...

Missing Authorization

Overview @actual-app/sync-server is an actual syncing server Affected versions of this package are vulnerable to Missing Authorization via the change-password endpoint, which lacks proper authorization checks. An attacker can gain administrative privileges by overwriting the password hash for the...

udp: Fix wildcard bind conflict check when using hash2

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USN-8202-1 jq vulnerabilities

It was discovered that jq did not correctly handle certain string concatenations. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code. This issue was addressed in Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, Ubuntu 24.04 LTS...

USN-8202-1: jq vulnerabilities

It was discovered that jq did not correctly handle certain string concatenations. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code. This issue was addressed in Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, Ubuntu 24.04 LTS...

SUSE CVE-2026-31503

In the Linux kernel, the following vulnerability has been resolved: udp: Fix wildcard bind conflict check when using hash2 When binding a udpsock to a local address and port, UDP uses two hashes udptable-hash and udptable-hash2 for collision detection. The current code switches to "hash2" when...

CVE-2026-41243

OpenLearn's OpenLearn project has a vulnerability CVE-2026-41243 where, prior to commit 844b2a40a69d0c4911580fe501923f0b391313ab, enabling safeMode does not prevent public access to unapproved posts via direct post UUID. The post-read path still returns full content to anyone who has the UUID, ev...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: jq (UTSA-2026-014272)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-014272 advisory. jq is a command-line JSON processor. Before commit 0c7d133c3c7e37c00b6d46b658a02244fdd3c784, jq used MurmurHash3 with a hardcoded, publicly visible seed 0x432A9843 f...

kernel: macvlan: fix possible UAF in macvlan_forward_source()

In the Linux kernel, the following vulnerability has been resolved: macvlan: fix possible UAF in macvlanforwardsource Add RCU protection on struct macvlansourceentry-vlan. Whenever macvlanhashdelsource is called, we must clear entry-vlan pointer before RCU grace period starts. This allows...

EUVD-2026-24880

In the Linux kernel, the following vulnerability has been resolved: udp: Fix wildcard bind conflict check when using hash2 When binding a udpsock to a local address and port, UDP uses two hashes udptable-hash and udptable-hash2 for collision detection. The current code switches to "hash2" when...

EUVD-2026-24900

In the Linux kernel, the following vulnerability has been resolved: xfrm: prevent policyhthresh.work from racing with netns teardown A XFRMMSGNEWSPDINFO request can queue the per-net work item policyhthresh.work onto the system workqueue. The queued callback, xfrmhashrebuild, retrieves the...

CVE-2026-31516

The CVE-2026-31516 relates to the Linux kernel XFRM subsystem. A race occurs during net namespace teardown when a work item (policy_hthresh.work) queued by XFRM_MSG_NEWSPDINFO may run after the netns is freed, allowing xfrm_hash_rebuild() to dereference a freed struct net (potential use-after-fre...

CVE-2026-31503 udp: Fix wildcard bind conflict check when using hash2

In the Linux kernel, the following vulnerability has been resolved: udp: Fix wildcard bind conflict check when using hash2 When binding a udpsock to a local address and port, UDP uses two hashes udptable-hash and udptable-hash2 for collision detection. The current code switches to "hash2" when...

CVE-2026-31503

CVE-2026-31503 concerns a Linux kernel UDP hash2-based wildcard-bind conflict check that can miss an in-use port when many sockets bind to the same port. The issue arises because UDP uses two hashes (hash and hash2) for collision detection and switches to hash2 only when hslot->count > 10, ...

kernel: macvlan: fix error recovery in macvlan_common_newlink()

A use-after-free vulnerability was found in the macvlan driver. When creating a macvlan interface in source mode fails after the source MAC has been added to the hash table e.g., due to an invalid interface name, the hash entry still references the freed netdevice structure. Subsequent packets...

kernel: macvlan: fix error recovery in macvlan_common_newlink()

A use-after-free vulnerability was found in the macvlan driver. When creating a macvlan interface in source mode fails after the source MAC has been added to the hash table e.g., due to an invalid interface name, the hash entry still references the freed netdevice structure. Subsequent packets...