CVE-2025-21670

CVE-2025-21670 affects the Linux kernel’s vsock/bpf path. The issue occurs when vsock_transport is not assigned (NULL) during vsock_bpf_recvmsg for connected sockets (stream/seqpacket), leading to a NULL pointer dereference in vsock_connectible_has_data and an in-kernel oops trace. The vulnerabil...

CVE-2025-21670 vsock/bpf: return early if transport is not assigned

In the Linux kernel, the following vulnerability has been resolved: vsock/bpf: return early if transport is not assigned Some of the core functions can only be called if the transport has been assigned. As Michal reported, a socket might have the transport at NULL, for example after a failed...

CVE-2025-21669 vsock/virtio: discard packets if the transport changes

In the Linux kernel, the following vulnerability has been resolved: vsock/virtio: discard packets if the transport changes If the socket has been de-assigned or assigned to another transport, we must discard any packets received because they are not expected and would cause issues when we access...

CVE-2025-21670 vsock/bpf: return early if transport is not assigned

In the Linux kernel, the following vulnerability has been resolved: vsock/bpf: return early if transport is not assigned Some of the core functions can only be called if the transport has been assigned. As Michal reported, a socket might have the transport at NULL, for example after a failed...

CVE-2025-21669 vsock/virtio: discard packets if the transport changes

In the Linux kernel, the following vulnerability has been resolved: vsock/virtio: discard packets if the transport changes If the socket has been de-assigned or assigned to another transport, we must discard any packets received because they are not expected and would cause issues when we access...

CVE-2025-21669

In the Linux kernel, the following vulnerability has been resolved: vsock/virtio: discard packets if the transport changes If the socket has been de-assigned or assigned to another transport, we must discard any packets received because they are not expected and would cause issues when we access...

CVE-2025-21670

In the Linux kernel, the following vulnerability has been resolved: vsock/bpf: return early if transport is not assigned Some of the core functions can only be called if the transport has been assigned. As Michal reported, a socket might have the transport at NULL, for example after a failed...

CVE-2025-21666 vsock: prevent null-ptr-deref in vsock_*[has_data|has_space]

In the Linux kernel, the following vulnerability has been resolved: vsock: prevent null-ptr-deref in vsockhasdata|hasspace Recent reports have shown how we sometimes call vsockhasdata when a vsock socket has been de-assigned from a transport see attached links, but we shouldn't. Previous commits...

CVE-2025-21666

CVE-2025-21666 involves a null-pointer dereference in the Linux kernel when vsock_*_has_data/has_space is invoked on a socket that has been de-assigned from a transport. The problem is mitigated by returning 0 (no space/data) with a warning to keep execution stable. Connected documents confirm th...

CVE-2025-21666 vsock: prevent null-ptr-deref in vsock_*[has_data|has_space]

In the Linux kernel, the following vulnerability has been resolved: vsock: prevent null-ptr-deref in vsockhasdata|hasspace Recent reports have shown how we sometimes call vsockhasdata when a vsock socket has been de-assigned from a transport see attached links, but we shouldn't. Previous commits...

CVE-2025-21666 vsock: prevent null-ptr-deref in vsock_*[has_data|has_space]

In the Linux kernel, the following vulnerability has been resolved: vsock: prevent null-ptr-deref in vsockhasdata|hasspace Recent reports have shown how we sometimes call vsockhasdata when a vsock socket has been de-assigned from a transport see attached links, but we shouldn't. Previous commits...

CVE-2025-21666

In the Linux kernel, the following vulnerability has been resolved: vsock: prevent null-ptr-deref in vsockhasdata|hasspace Recent reports have shown how we sometimes call vsockhasdata when a vsock socket has been de-assigned from a transport see attached links, but we shouldn't. Previous commits...

Linux kernel 代码问题漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. Linux kernel suffers from a code issue vulnerability that stems from the vsockhasdata|hasspace function being called when a socket is not allocated a transport layer, which can...

Linux kernel 代码问题漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A code issue vulnerability exists in Linux kernel that stems from the vsock protocol not properly discarding received packets when a socket is reassigned or unassigned to the...

vsock: Update rx_bytes on read_skb()

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virtio/vsock: Fix accept_queue memory leak

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Security update for the Linux Kernel RT (Live Patch 1 for SLE 15 SP6)

This update for the Linux Kernel 6.4.0-150600105 fixes several issues. The following security issues were fixed: CVE-2024-40921: net: bridge: mst: pass vlan group directly to brmstvlansetstate bsc1227784. CVE-2024-40920: net: bridge: mst: fix suspicious rcu usage in brmstsetstate bsc1227781...

The vulnerability of the net/vmw_vsock/virtio_transport_common.c component in the Linux operating system allows a hacker to trigger a service failure.

The vulnerability of the net/vmwvsock/virtiotransportcommon.c component in the Linux operating system is related to improper memory release before deleting the last reference. Exploiting this vulnerability can allow an attacker to cause a service failure...

Security update for the Linux Kernel (Live Patch 3 for SLE 15 SP6)

This update for the Linux Kernel 6.4.0-1506002317 fixes several issues. The following security issues were fixed: CVE-2024-40921: net: bridge: mst: pass vlan group directly to brmstvlansetstate bsc1227784. CVE-2024-40920: net: bridge: mst: fix suspicious rcu usage in brmstsetstate bsc1227781...

Security update for the Linux Kernel (Live Patch 12 for SLE 15 SP5)

This update for the Linux Kernel 5.14.21-1505005559 fixes several issues. The following security issues were fixed: CVE-2024-41057: cachefiles: fix slab-use-after-free in cachefileswithdrawcookie bsc1229275. CVE-2024-36971: Fixed dstnegativeadvice race bsc1226324. CVE-2024-50264: vsock/virtio:...