Linux Distros Unpatched Vulnerability : CVE-2026-64523

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - net/handshake: Take a long-lived file reference at submit handshakenlacceptdoit needs the file pointer backing req-hrsk-sksocket to survive the window between...

CVE-2026-63979

A flaw was found in the Linux kernel's net/handshake component. A race condition exists where a network handshake request can be removed and its associated file reference released concurrently while the accept-side code attempts to access it. This can lead to the system attempting to read from...

Linux Distros Unpatched Vulnerability : CVE-2026-63979

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - net/handshake: hand off the pinned file reference to acceptdoit handshakereqnext removes the request from the per-net pending list and drops hnlock before...

Linux Distros Unpatched Vulnerability : CVE-2026-63980

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - net/handshake: Use spinlockbh for hnlock nvmettcpstatechange, a socket callback that runs in BH context, can reach handshakereqcancel via...

CVE-2026-63979 net/handshake: hand off the pinned file reference to accept_doit

In the Linux kernel, the following vulnerability has been resolved: net/handshake: hand off the pinned file reference to acceptdoit handshakereqnext removes the request from the per-net pending list and drops hnlock before handshakenlacceptdoit reads req-hrsk-sksocket and dereferences sock-file...

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-2026-61296

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...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: net/handshake: fixed null-ptr-deref in handshakenldonedoit We should not call tracehandshakecmddoneerr if the socket lookup fails. We should also call tracehandshakecmddoneerr before releasing the file; otherwise, dereferencin...

SUSE-SU-2026:0471-1 Security update for the Linux Kernel

The SUSE Linux Enterprise 15 SP6 kernel was updated to fix various security issues The following security issues were fixed: - CVE-2025-40257: mptcp: fix a race in mptcppmdeladdtimer bsc1254842. - CVE-2025-40259: scsi: sg: Do not sleep in atomic context bsc1254845. - CVE-2025-68284: libceph:...

UBUNTU-CVE-2025-71148

In the Linux kernel, the following vulnerability has been resolved: net/handshake: restore destructor on submit failure handshakereqsubmit replaces sk-skdestruct but never restores it when submission fails before the request is hashed. handshakeskdestruct then returns early and the original...

CVE-2025-71148

In the Linux kernel, the following vulnerability has been resolved: net/handshake: restore destructor on submit failure handshakereqsubmit replaces sk-skdestruct but never restores it when submission fails before the request is hashed. handshakeskdestruct then returns early and the original...

CVE-2025-71148 net/handshake: restore destructor on submit failure

In the Linux kernel, the following vulnerability has been resolved: net/handshake: restore destructor on submit failure handshakereqsubmit replaces sk-skdestruct but never restores it when submission fails before the request is hashed. handshakeskdestruct then returns early and the original...

The vulnerability of the `remove_pending()` function in the `net/handshake` component, which is part of the Linux kernel-level security session establishment mechanism, allows a attacker to cause a service failure.

The vulnerability of the removepending function in the net/handshake component, which is part of the Linux kernel-level security session establishment mechanism, is related to errors during link counter updates. Exploiting this vulnerability could allow an attacker to cause a service failure...

net/handshake: duplicate handshake cancellations leak socket

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CVE-2025-68775

In the Linux kernel, the following vulnerability has been resolved: net/handshake: duplicate handshake cancellations leak socket When a handshake request is cancelled it is removed from the handshakenet-hnrequests list, but it is still present in the handshakerhashtbl until it is destroyed. If a...

CVE-2023-53686

In the Linux kernel, the following vulnerability has been resolved: net/handshake: fix null-ptr-deref in handshakenldonedoit We should not call tracehandshakecmddoneerr if socket lookup has failed. Also we should call tracehandshakecmddoneerr before releasing the file, otherwise dereferencing...

CVE-2024-26831

In the Linux kernel, the following vulnerability has been resolved: net/handshake: Fix handshakereqdestroytest1 Recently, handshakereqdestroytest1 started failing: Expected handshakereqdestroytest == req, but handshakereqdestroytest == 0000000000000000 req == 0000000060f99b40 not ok 11 reqdestroy...

CVE-2024-26831 net/handshake: Fix handshake_req_destroy_test1

In the Linux kernel, the following vulnerability has been resolved: net/handshake: Fix handshakereqdestroytest1 Recently, handshakereqdestroytest1 started failing: Expected handshakereqdestroytest == req, but handshakereqdestroytest == 0000000000000000 req == 0000000060f99b40 not ok 11 reqdestroy...

CVE-2024-26831

CVE-2024-26831 : Linux kernel vulnerability affecting the handshake path in net/handshake, where the test handshake_req_destroy_test1 failed due to replacing sock_release(sock) with fput(filp). This change delayed final close/cleanup, risking that hp_destroy might not be invoked before the test c...