Siemens SIMATIC S7-1500 TM MFP Improper Input Validation (CVE-2026-53227)

In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: fix possible kfreeskb of ERRPTR After the patch in the 'Fixes' tag, the allocation of the 'reply' skb can happen either before or after locking the ovsmutex. However, error cleanups still follow the classical...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-100718)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-100718 advisory. In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: fix possible kfreeskb of ERRPTR After the patch in the Fixes tag, the allocatio...

CVE-2026-63970: Use After Free

In the Linux kernel, the following vulnerability has been resolved: vsock/virtio: bind uarg before filling zerocopy skb virtiotransportsendpktinfo allocates or reuses the zerocopy uarg before entering the send loop, but virtiotransportallocskb still fills the skb before it inherits that uarg. Whe...

CVE-2026-63970: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: vsock/virtio: bind uarg before filling zerocopy skb virtiotransportsendpktinfo allocates or reuses the zerocopy uarg before entering the send loop, but virtiotransportallocskb still fills the skb before it inherits that uarg. Whe...

AZL-90860 CVE-2026-53227 affecting package kernel for versions less than 6.6.143.1-1

In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: fix possible kfreeskb of ERRPTR After the patch in the "Fixes" tag, the allocation of the "reply" skb can happen either before or after locking the ovsmutex. However, error cleanups still follow the classical...

CVE-2026-53227 net: openvswitch: fix possible kfree_skb of ERR_PTR

In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: fix possible kfreeskb of ERRPTR After the patch in the "Fixes" tag, the allocation of the "reply" skb can happen either before or after locking the ovsmutex. However, error cleanups still follow the classical...

CVE-2026-53227: Missing Release of Memory after Effective Lifetime

In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: fix possible kfreeskb of ERRPTR After the patch in the "Fixes" tag, the allocation of the "reply" skb can happen either before or after locking the ovsmutex. However, error cleanups still follow the classical...

Linux Kernel Security Vulnerabilities

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A memory misreference vulnerability exists in the Linux kernel. The vulnerability stems from a call to kfreeskb when allocskb fails in x25queuerxframe, which can be exploited b...

AZL-83318 CVE-2026-31500 affecting package kernel for versions less than 6.6.134.1-2

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: btintel: serialize btintelhwerror with hcireqsynclock btintelhwerror issues two hcicmdsync calls HCIOPRESET and Intel exception-info retrieval without holding hcireqsynclock. This lets it race against hcidevdoclose -...

EUVD-2026-18688

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: always free skb on ieee80211txprepareskb failure ieee80211txprepareskb has three error paths, but only two of them free the skb. The first error path ieee80211txprepare returning TXDROP does not free it, while...

CVE-2026-23444

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: always free skb on ieee80211txprepareskb failure ieee80211txprepareskb has three error paths, but only two of them free the skb. The first error path ieee80211txprepare returning TXDROP does not free it, while...

DEBIAN-CVE-2025-38057

In the Linux kernel, the following vulnerability has been resolved: espintcp: fix skb leaks A few error paths are missing a kfreeskb...

CVE-2025-38057 espintcp: fix skb leaks

In the Linux kernel, the following vulnerability has been resolved: espintcp: fix skb leaks A few error paths are missing a kfreeskb...

Linux ovs_flow_cmd_new kfree_skb DoS

The vulnerabilities of the ovsflowcmdnew and kfreeskb functions in the Linux operating system are related to the lack of memory release. Exploiting these vulnerabilities can allow an attacker to cause a service failure...

kernel: virtio/vsock: Improve MSG_ZEROCOPY error handling

A flaw was found in the Linux kernel's virtio virtual socket vsock implementation. This vulnerability can lead to a Denial of Service DoS caused by memory exhaustion. When an error occurs during zero-copy network transmissions MSGZEROCOPY, the kernel fails to properly release allocated socket...

CVE-2020-36789

In the Linux kernel, the following vulnerability has been resolved: can: dev: cangetechoskb: prevent call to kfreeskb in hard IRQ context If a driver calls cangetechoskb during a hardware IRQ which is often, but not always, the case, the 'WARNONinirq' in net/core/skbuff.cskbreleaseheadstate might...

Linux Kernel Security Vulnerabilities

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in Linux kernel that stems from a call to kfreeskb in a hard IRQ context that could result in a null pointer dereference...

CVE-2020-36789: NULL Pointer Dereference

In the Linux kernel, the following vulnerability has been resolved: can: dev: cangetechoskb: prevent call to kfreeskb in hard IRQ context If a driver calls cangetechoskb during a hardware IRQ which is often, but not always, the case, the 'WARNONinirq' in net/core/skbuff.cskbreleaseheadstate might...

CVE-2023-53023 net: nfc: Fix use-after-free in local_cleanup()

In the Linux kernel, the following vulnerability has been resolved: net: nfc: Fix use-after-free in localcleanup Fix a use-after-free that occurs in kfreeskb called from localcleanup. This could happen when killing nfc daemon e.g. neard after detaching an nfc device. When detaching an nfc device,...

CVE-2023-53023: Use After Free

In the Linux kernel, the following vulnerability has been resolved: net: nfc: Fix use-after-free in localcleanup Fix a use-after-free that occurs in kfreeskb called from localcleanup. This could happen when killing nfc daemon e.g. neard after detaching an nfc device. When detaching an nfc device,...