kernel: tcp/dccp: Don't use timer_pending() in reqsk_queue_unlink().

A use-after-free UAF vulnerability was found and fixed in the Linux kernel's TCP subsystem related to request socket reqsk timers during handshake handling. This issue stems from a race condition caused by relying on timerpending in reqskqueueunlink. This could result in the timer continuing to r...

kernel: net: atm: fix use after free in lec_send()

In the Linux kernel, the following vulnerability has been resolved: net: atm: fix use after free in lecsend The -send operation frees skb so save the length before calling -send to avoid a use after free...

PT-2025-33567

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: A race condition exists in the rxrpc subsystem where a call can be processed by multiple threads concurrently. This occurs when a call is placed on the socket queue and multiple thread...

kernel: net: atm: fix use after free in lec_send()

In the Linux kernel, the following vulnerability has been resolved: net: atm: fix use after free in lecsend The -send operation frees skb so save the length before calling -send to avoid a use after free...

PT-2025-33575

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: A flaw was discovered in the Linux kernel’s libwx component related to the resetting of Rx ring descriptors. When a device reset is triggered by feature changes, such as toggling Rx VL...

PT-2025-33599

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: The Linux kernel contains a flaw related to multi-path TCP MPTCP where a race condition can occur between subflow failure and subflow creation. This issue is similar to a previously...

Azure Linux 3.0 Security Update: cloud-init (CVE-2024-11584)

The version of cloud-init installed on the remote Azure Linux 3.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2024-11584 advisory. - cloud-init through 25.1.2 includes the systemd socket unit cloud-init-hotplugd.socket with default...

kernel: net: atm: fix use after free in lec_send()

In the Linux kernel, the following vulnerability has been resolved: net: atm: fix use after free in lecsend The -send operation frees skb so save the length before calling -send to avoid a use after free...

kernel: ipv6: mcast: extend RCU protection in igmp6_send()

In the Linux kernel, the following vulnerability has been resolved: ipv6: mcast: extend RCU protection in igmp6send igmp6send can be called without RTNL or RCU being held. Extend RCU protection so that we can safely fetch the net pointer and avoid a potential UAF. Note that we no longer can use...

OESA-2025-1787 cloud-init security update

Cloud-init is the defacto multi-distribution package that handles early initialization of a cloud instance. Security Fixes: cloud-init is an industry-standard multi-distribution method for cross-platform cloud instance initialization by Canonical. There is a security vulnerability in cloud-init...

OESA-2025-1786 cloud-init security update

Cloud-init is the defacto multi-distribution package that handles early initialization of a cloud instance. Security Fixes: cloud-init is an industry-standard multi-distribution method for cross-platform cloud instance initialization by Canonical. There is a security vulnerability in cloud-init...

OESA-2025-1784 cloud-init security update

Cloud-init is the defacto multi-distribution package that handles early initialization of a cloud instance. Security Fixes: cloud-init is an industry-standard multi-distribution method for cross-platform cloud instance initialization by Canonical. There is a security vulnerability in cloud-init...

OESA-2025-1785 cloud-init security update

Cloud-init is the defacto multi-distribution package that handles early initialization of a cloud instance. Security Fixes: cloud-init is an industry-standard multi-distribution method for cross-platform cloud instance initialization by Canonical. There is a security vulnerability in cloud-init...

net: ppp: Add bound checking for skb data on ppp_sync_txmung

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In FRRouting (FRR) all routes are re-validated if the total size of an update received via RTR exceeds the internal socket's buffer size

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net: mctp: Set SOCK_RCU_FREE

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Bluetooth: btusb: avoid NULL pointer dereference in skb_dequeue()

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cloud-init through 25.1.2 includes the systemd socket unit cloud-init-hotplugd.socket with default SocketMode that grants 0666 permissions, making it world-writable. This is used for the "/run/cloud-init/hook-hotplug-cmd" FIFO. An unprivileged user could trigger hotplug-hook commands.

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Linux kernel 安全漏洞

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 the Linux kernel that stems from accessing rxcb-iscontinuation even after releasing skb, which could lead to post-release reuse...

PT-2025-33589

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: The Linux kernel contains a memory leak in the atm subsystem related to the clip vcc structure. The ioctlATMARPD CTRL function in atm init atmarp sets vcc-push to NULL, which prevents...