CVE-2023-53836 bpf, sockmap: Fix skb refcnt race after locking changes

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...

CVE-2023-53836 bpf, sockmap: Fix skb refcnt race after locking changes

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...

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 Linux kernel that stems from skb reference count contention in sockmap...

Linux Distros Unpatched Vulnerability : CVE-2023-53836

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - 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...

CVE-2025-40248

In the Linux kernel, the following vulnerability has been resolved: vsock: Ignore signal/timeout on connect if already established During connect, acting on a signal/timeout by disconnecting an already established socket leads to several issues: 1. connect invoking vsocktransportcancelpkt -...

SUSE CVE-2025-40248

In the Linux kernel, the following vulnerability has been resolved: vsock: Ignore signal/timeout on connect if already established During connect, acting on a signal/timeout by disconnecting an already established socket leads to several issues: 1. connect invoking vsocktransportcancelpkt -...

CVE-2025-40248

In the Linux kernel, the following vulnerability has been resolved: vsock: Ignore signal/timeout on connect if already established During connect, acting on a signal/timeout by disconnecting an already established socket leads to several issues: 1. connect invoking vsocktransportcancelpkt -...

AZL-71396 CVE-2025-40248 affecting package kernel for versions less than 6.6.119.3-1

In the Linux kernel, the following vulnerability has been resolved: vsock: Ignore signal/timeout on connect if already established During connect, acting on a signal/timeout by disconnecting an already established socket leads to several issues: 1. connect invoking vsocktransportcancelpkt -...

UBUNTU-CVE-2025-40248

In the Linux kernel, the following vulnerability has been resolved: vsock: Ignore signal/timeout on connect if already established During connect, acting on a signal/timeout by disconnecting an already established socket leads to several issues: 1. connect invoking vsocktransportcancelpkt -...

CVE-2025-40248 vsock: Ignore signal/timeout on connect() if already established

In the Linux kernel, the following vulnerability has been resolved: vsock: Ignore signal/timeout on connect if already established During connect, acting on a signal/timeout by disconnecting an already established socket leads to several issues: 1. connect invoking vsocktransportcancelpkt -...

CVE-2025-40248

The CVE CVE-2025-40248 is supported by connected advisories detailing a vsock connect() race in the Linux kernel. Root cause: during connect(), signals/timeouts could cause disconnection of an already established vsock, racing with sendmsg() and other transport state changes. This could permanent...

CVE-2025-40248 vsock: Ignore signal/timeout on connect() if already established

In the Linux kernel, the following vulnerability has been resolved: vsock: Ignore signal/timeout on connect if already established During connect, acting on a signal/timeout by disconnecting an already established socket leads to several issues: 1. connect invoking vsocktransportcancelpkt -...

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-990789)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-990789 advisory. In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Fix the sk-skforwardalloc warning of skstreamkillqueues When running testsockmap...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-989114)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-989114 advisory. In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Check for any of tcpbpfprots when cloning a listener A listening socket linked to a...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-989106)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-989106 advisory. In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Fix potential memory leak on unlikely error case If skblinearize is needed and fail...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-990250)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-990250 advisory. In the Linux kernel, the following vulnerability has been resolved: bpf: Allow delete from sockmap/sockhash only if update is allowed We have seen an influx of...

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-989869)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-989869 advisory. In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Check for any of tcpbpfprots when cloning a listener A listening socket linked to a...

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-989777)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-989777 advisory. In the Linux kernel, the following vulnerability has been resolved: bpf: Allow delete from sockmap/sockhash only if update is allowed We have seen an influx of...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-989313)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-989313 advisory. In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Fix double uncharge the mem of skmsg If tcpbpfsendmsg is running during a tear down...