CVE-2026-63980 net/handshake: Use spin_lock_bh for hn_lock

In the Linux kernel, the following vulnerability has been resolved: net/handshake: Use spinlockbh for hnlock nvmettcpstatechange, a socket callback that runs in BH context, can reach handshakereqcancel via nvmettcpschedulereleasequeue and tlshandshakecancel. handshakereqcancel acquires hn-hnlock...

CVE-2026-63978

The CVE-2026-63978 issue affects the Linux kernel in net/handshake handling during net namespace exit. The root cause is reversed arguments to list_splice_init() in handshake_net_exit(), which transfers the pending handshake requests to the wrong list, causing the drain loop to skip, leaving some...

CVE-2026-63978 net/handshake: Drain pending requests at net namespace exit

In the Linux kernel, the following vulnerability has been resolved: net/handshake: Drain pending requests at net namespace exit The arguments to listspliceinit in handshakenetexit are reversed. The call moves the local empty "requests" list onto hn-hnrequests, leaving the local list empty, so the...

EUVD-2026-45751

In the Linux kernel, the following vulnerability has been resolved: net/handshake: Drain pending requests at net namespace exit The arguments to listspliceinit in handshakenetexit are reversed. The call moves the local empty "requests" list onto hn-hnrequests, leaving the local list empty, so the...

CVE-2026-63978

In the Linux kernel, the following vulnerability has been resolved: net/handshake: Drain pending requests at net namespace exit The arguments to listspliceinit in handshakenetexit are reversed. The call moves the local empty "requests" list onto hn-hnrequests, leaving the local list empty, so the...

CVE-2026-63978 net/handshake: Drain pending requests at net namespace exit

In the Linux kernel, the following vulnerability has been resolved: net/handshake: Drain pending requests at net namespace exit The arguments to listspliceinit in handshakenetexit are reversed. The call moves the local empty "requests" list onto hn-hnrequests, leaving the local list empty, so the...

PT-2026-61432

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A use-after-free issue exists in the vsock/vmci component. The vmci transport recv connecting server function incorrectly returns a success value when a peer sends a reset RST packet...

PT-2026-61295

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the net/handshake component where pending requests are not properly drained during net namespace exit. This occurs because the arguments to the list splice init functi...

PT-2026-61296

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A race condition exists in the net/handshake component. The handshake req next function removes a request from the pending list and releases the hn lock before handshake nl accept doit...

PT-2026-61297

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A deadlock occurs in the Linux kernel when nvmet tcp state change a socket callback running in Bottom Half BH context triggers handshake req cancel via nvmet tcp schedule release queue a...

Denial Of Service (DoS)

websocket-driver is vulnerable to Denial Of Service DoS. The vulnerability is due to the lack of limits on processing HTTP request or response headers during the WebSocket handshake, which allows an attacker to send an endless list of headers and exhaust the receiving process's memory, resulting ...

Improper Origin Validation

MCP Python SDK is vulnerable to Improper Origin Validation. The vulnerability is due to the WebSocket transport accepting handshake requests without validating the Host or Origin headers, which allows an attacker to establish unauthorized cross-origin WebSocket connections...

SUSE-SU-2026:22752-1 Security update for gstreamer-plugins-bad

This update for gstreamer-plugins-bad fixes the following issues - CVE-2026-12891: unchecked aspectratioidc value used as an array index in the H.266 parser could cause a global out- of-bounds read bsc1268872. - CVE-2026-12892: 1-byte heap out-of-bounds read in H.264 NAL extension slice parser...

SUSE-SU-2026:22817-1 Security update for gstreamer-plugins-bad

This update for gstreamer-plugins-bad fixes the following issues - CVE-2026-12891: unchecked aspectratioidc value used as an array index in the H.266 parser could cause a global out- of-bounds read bsc1268872. - CVE-2026-12892: 1-byte heap out-of-bounds read in H.264 NAL extension slice parser...

OPENSUSE-SU-2026:21370-1 Security update for gstreamer-plugins-bad

This update for gstreamer-plugins-bad fixes the following issues - CVE-2026-12891: unchecked aspectratioidc value used as an array index in the H.266 parser could cause a global out- of-bounds read bsc1268872. - CVE-2026-12892: 1-byte heap out-of-bounds read in H.264 NAL extension slice parser...

OpenSSL HollowByte Flaw Could Freeze Server Memory with 11-Byte TLS Requests

Eleven bytes will make an unpatched OpenSSL server set aside up to 131 KB of memory for a message that never arrives. On the glibc systems Okta tested, that memory is gone until the process restarts. OpenSSL shipped the HollowByte fix in June with no CVE, no advisory, and no changelog entry...

CVE-2026-44435

Quicly is an IETF QUIC protocol implementation intended primarily for use within the H2O HTTP server. Prior to commit 937d0e9, an assertion failure is raised when the total number of valid handshake messages received over a CRYPTO stream of a single packet number space exceeds 32KB, causing a...

CVE-2026-44435

CVE-2026-44435 : Quicly (QUIC protocol implementation used with H2O) contains an assertion failure that triggers a Denial of Service when the total number of valid handshake messages over a CRYPTO stream within a single packet number space exceeds 32KB. The issue is fixed by commit 937d0e9. Affec...

CVE-2026-44435 Quicly: Remote Denial of Service via assertion failure when CRYPTO stream handshake data exceeds 32KB

Quicly is an IETF QUIC protocol implementation intended primarily for use within the H2O HTTP server. Prior to commit 937d0e9, an assertion failure is raised when the total number of valid handshake messages received over a CRYPTO stream of a single packet number space exceeds 32KB, causing a...

CVE-2026-44435

Quicly is an IETF QUIC protocol implementation intended primarily for use within the H2O HTTP server. Prior to commit 937d0e9, an assertion failure is raised when the total number of valid handshake messages received over a CRYPTO stream of a single packet number space exceeds 32KB, causing a...