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 the conntimeout value being less than 4 in the tipcskfilterconnect function, leading to a zero...

PT-2026-39072

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A divide-by-zero exception occurs in the tipc sk filter connect function. A user can set the conn timeout variable to a value between 0 and 3 using setsockoptTIPC CONN TIMEOUT. When a SY...

GHSA-375F-4R2H-F99J Bandit trusts client-supplied URI scheme on plaintext connections

Summary Bandit reflects the client-supplied URI scheme into conn.scheme without verifying the actual transport. Over a plaintext HTTP/1.1 connection or h2c, an unauthenticated attacker can send an absolute-form request target like GET https://victim/path HTTP/1.1 and the application observes...

Malicious code in test-py-conn (PyPI)

--- -= Per source details. Do not edit below this line.=- Source: kam193 7e39e3b24f15db8e5eff412ba6cb217986b6f80b6923712abd1efee4cf79a7ed The code automatically starts a worker designed to survive the exit of the main process. The worker load code from a PYC file which then connects to pre-define...

MAL-2026-3356 Malicious code in test-py-conn (PyPI)

--- -= Per source details. Do not edit below this line.=- Source: kam193 7e39e3b24f15db8e5eff412ba6cb217986b6f80b6923712abd1efee4cf79a7ed The code automatically starts a worker designed to survive the exit of the main process. The worker load code from a PYC file which then connects to pre-define...

Plug.Cowboy vulnerable to unauthenticated remote DoS via HTTP/2 `:scheme` atom-table exhaustion

Summary An unauthenticated remote denial-of-service vulnerability in Plug.Cowboy.Conn allows any attacker who can reach an HTTPS Plug.Cowboy listener via HTTP/2 to permanently exhaust the BEAM atom table and crash the entire Erlang VM. Am I Affected? All users running plugcowboy with HTTP/2 may b...

SUSE CVE-2026-31711

In the Linux kernel, the following vulnerability has been resolved: smb: server: fix activenumconn leak on transport allocation failure Commit 77ffbcac4e56 "smb: server: fix leak of activenumconn in ksmbdtcpnewconnection" addressed the kthreadrun failure path. The earlier alloctransport == NULL...

CVE-2026-43018

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcievent: fix potential UAF in hcileremoteconnparamreqevt hciconn lookup and field access must be covered by hdev lock in hcileremoteconnparamreqevt, otherwise it's possible it is freed concurrently. Extend the...

CVE-2026-43018

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcievent: fix potential UAF in hcileremoteconnparamreqevt hciconn lookup and field access must be covered by hdev lock in hcileremoteconnparamreqevt, otherwise it's possible it is freed concurrently. Extend the...

kernel: scsi: target: iscsi: Fix use-after-free in iscsit_dec_conn_usage_count()

A use-after-free flaw was found in the Linux kernel's iSCSI target subsystem. In the iscsitdecconnusagecount function, complete is called while still holding the conn-connusagelock spinlock. The waiting thread such as iscsitcloseconnection may wake up immediately and free the iscsitconn structure...

CVE-2026-31499

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix deadlock in l2capconndel l2capconndel calls canceldelayedworksync for both infotimer and idaddrtimer while holding conn-lock. However, the work functions l2capinfotimeout and l2capconnupdateidaddr both acqui...

CVE-2026-31513

Summary: CVE-2026-31513 affects the Linux kernel Bluetooth L2CAP code. A stack-out-of-bounds read occurs in l2cap_ecred_conn_req when handling a malformed Enhanced Credit Based Connection Request with more SCIDs than allowed. The bug arises from computing rsp_len before validating the number of S...

CVE-2026-31513 Bluetooth: L2CAP: Fix stack-out-of-bounds read in l2cap_ecred_conn_req

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix stack-out-of-bounds read in l2capecredconnreq Syzbot reported a KASAN stack-out-of-bounds read in l2capbuildcmd that is triggered by a malformed Enhanced Credit Based Connection Request. The vulnerability...

CVE-2026-23461

CVE-2026-23461: In the Linux kernel Bluetooth L2CAP, l2cap_register_user() and l2cap_unregister_user() did not consistently acquire conn->lock, creating a race with l2cap_conn_del() that can access conn->users and conn->hchan concurrently. This caused use-after-free and list corruption. ...

CVE-2026-23461 Bluetooth: L2CAP: Fix use-after-free in l2cap_unregister_user

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix use-after-free in l2capunregisteruser After commit ab4eedb790ca "Bluetooth: L2CAP: Fix corrupted list in hcichandel", l2capconndel uses conn-lock to protect access to conn-users. However, l2capregisteruser a...

CVE-2026-4537 Cudy TR1200 ipsec.lua action_ipsec_conn command injection

A vulnerability was determined in Cudy TR1200 R46-2.4.15-20250721-164017. Impacted is the function actionipsecconn of the file /usr/bin/lib/lua/luci/controller/ipsec.lua. Executing a manipulation can lead to command injection. The attack may be launched remotely. The exploit has been publicly...

CVE-2026-4537 Cudy TR1200 ipsec.lua action_ipsec_conn command injection

A vulnerability was determined in Cudy TR1200 R46-2.4.15-20250721-164017. Impacted is the function actionipsecconn of the file /usr/bin/lib/lua/luci/controller/ipsec.lua. Executing a manipulation can lead to command injection. The attack may be launched remotely. The exploit has been publicly...

ROS-20260313-73-0033

A vulnerability in the tipcconnclose function of the Linux operating system kernel is related to memory usage after it has been freed. Exploitation of the vulnerability could allow an attacker to cause a denial of service...

Unity Linux 20.1070e Security Update: kernel (UTSA-2026-005561)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-005561 advisory. In the Linux kernel, the following vulnerability has been resolved: Bluetooth: MGMT: Add error handling to pairdevice hciconnparamsadd never checks for a NULL value...

GHSA-XH87-MX6M-69F3 Hono is Vulnerable to Authentication Bypass by IP Spoofing in AWS Lambda ALB conninfo

Summary When using the AWS Lambda adapter hono/aws-lambda behind an Application Load Balancer ALB, the getConnInfo function incorrectly selected the first value from the X-Forwarded-For header. Because AWS ALB appends the real client IP address to the end of the X-Forwarded-For header, the first...