CVE-2026-68170 mptcp: fix stale skb->sk reference on subflow close

In the Linux kernel, the following vulnerability has been resolved: mptcp: fix stale skb-sk reference on subflow close The backlog list is updated by mptcpdataready under mptcpdatalock. The cleanup of backlog references to a closing subflow, however, was performed in mptcpclosessk, before...

CVE-2026-68170

CVE-2026-68170, affecting Linux kernel MPTCP, describes a use-after-free risk caused by a stale backlog backlog entry referencing a closing subflow. The issue arises because backlog cleanup was performed in mptcp_close_ssk() without holding the ssk lock or mptcp_data_lock(), while concurrent RX p...

RHEL 10 : kernel (RHSA-2026:25908)

The remote Redhat Enterprise Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:25908 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: net: afcan: do not leave a...

CVE-2026-31469 virtio_net: Fix UAF on dst_ops when IFF_XMIT_DST_RELEASE is cleared and napi_tx is false

In the Linux kernel, the following vulnerability has been resolved: virtionet: Fix UAF on dstops when IFFXMITDSTRELEASE is cleared and napitx is false A UAF issue occurs when the virtionet driver is configured with napitx=N and the device's IFFXMITDSTRELEASE flag is cleared e.g., during the...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-005004)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-005004 advisory. In the Linux kernel, the following vulnerability has been resolved: can: j1939: fix Use-after-Free, hold skb ref while in use This patch fixes a Use-after-Free found...

Azure Linux 3.0 Security Update: kernel (CVE-2025-21864)

The version of kernel 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-2025-21864 advisory. - In the Linux kernel, the following vulnerability has been resolved: tcp: drop secpath at the same time as we...

UBUNTU-CVE-2023-53836

In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Fix skb refcnt race after locking changes There is a race where skb's from the skpsockbacklog can be referenced after userspace side has already skbconsumed the skbuff and its refcnt dropped to zer0 causing use afte...

CVE-2023-53836

Summary (CVE-2023-53836): In the Linux kernel, a race condition can occur in bpf/sockmap code affecting skb refcnt after locking changes. The backlog path may still hold a reference to a skb that userspace has already consumed (skb_dequeue) and freed, leading to a potential use-after-free. The fi...

kernel: can: j1939: j1939_session_new(): fix skb reference counting

In the Linux kernel, the following vulnerability has been resolved: can: j1939: j1939sessionnew: fix skb reference counting Since j1939sessionskbqueue does an extra skbget for each new skb, do the same for the initial one in j1939sessionnew to avoid refcount underflow. mkl: clean up commit messag...

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-989870)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-989870 advisory. In the Linux kernel, the following vulnerability has been resolved: can: j1939: j1939sessionnew: fix skb reference counting Since j1939sessionskbqueue does an extra...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-990266)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-990266 advisory. In the Linux kernel, the following vulnerability has been resolved: can: j1939: j1939sessionnew: fix skb reference counting Since j1939sessionskbqueue does an extra...

EUVD-2022-55028

Malicious code in bioql PyPI...

EUVD-2024-53293

Malicious code in bioql PyPI...

CLSA-2025-1747688581 kernel: Fix of 15 CVEs

media: uvcvideo: Fix double free in error path CVE-2024-57980 - vrf: use RCU protection in l3mdevl3out CVE-2025-21791 - geneve: Fix use-after-free in genevefinddev. CVE-2025-21858 - ibmvnic: Don't reference skb after sending to VIOS CVE-2025-21855 - pfifotailenqueue: Drop new packet when...

DEBIAN-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...

CVE-2025-21855

In the Linux kernel, the following vulnerability has been resolved: ibmvnic: Don't reference skb after sending to VIOS Previously, after successfully flushing the xmit buffer to VIOS, the txbytes stat was incremented by the length of the skb. It is invalid to access the skb memory after sending t...

Linux Distros Unpatched Vulnerability : CVE-2024-56645

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the Linux kernel, the following vulnerability has been resolved: can: j1939: j1939sessionnew: fix skb reference counting Since j1939sessionskbqueue does an...

DEBIAN-CVE-2022-49198

In the Linux kernel, the following vulnerability has been resolved: mptcp: Fix crash due to tcptsortedanchor was initialized before release skb Got crash when doing pressure test of mptcp: =========================================================================== dstrelease: dst:ffffa06ce6e5c058...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: s390/iucv: MSGPEEK causes a memory leak in iucvsockdestruct. Passing the MSGPEEK flag to skbrecvdatagram increments the skb refcount skb-users, while iucvsockrecvmsg does not decrement the skb refcount at exit. This results in a...

CVE-2024-56645

Technical details about CVE-2024-56645 are not provided in the supplied documents. Please monitor for updates from official advisories and vendor pages for affected products, impact, and mitigations.