CVE-2025-21677

In the Linux kernel, the following vulnerability has been resolved: pfcp: Destroy device along with udp socket's netns dismantle. pfcpnewlink links the device to a list in devnetdev instead of net, where a udp tunnel socket is created. Even when net is removed, the device stays alive on devnetdev...

DEBIAN-CVE-2025-21677

In the Linux kernel, the following vulnerability has been resolved: pfcp: Destroy device along with udp socket's netns dismantle. pfcpnewlink links the device to a list in devnetdev instead of net, where a udp tunnel socket is created. Even when net is removed, the device stays alive on devnetdev...

CVE-2025-21678

In the Linux kernel, the following vulnerability has been resolved: gtp: Destroy device along with udp socket's netns dismantle. gtpnewlink links the device to a list in devnetdev instead of srcnet, where a udp tunnel socket is created. Even when srcnet is removed, the device stays alive on...

UBUNTU-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...

UBUNTU-CVE-2025-21678

In the Linux kernel, the following vulnerability has been resolved: gtp: Destroy device along with udp socket's netns dismantle. gtpnewlink links the device to a list in devnetdev instead of srcnet, where a udp tunnel socket is created. Even when srcnet is removed, the device stays alive on...

CVE-2025-21683

CVE-2025-21683 affects the Linux kernel and patches a memory-leak in bpf_sk_select_reuseport() when using reuseport BPF programs. The underlying issue is that a sockmap lookup could return a TCP ESTABLISHED socket that previously had SO_ATTACH_REUSEPORT_EBPF, meaning a non-NULL sk_reuseport_cb di...

CVE-2025-21683 bpf: Fix bpf_sk_select_reuseport() memory leak

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix bpfskselectreuseport memory leak As pointed out in the original comment, lookup in sockmap can return a TCP ESTABLISHED socket. Such TCP socket may have had SOATTACHREUSEPORTEBPF set before it was ESTABLISHED. In other...

CVE-2025-21683 bpf: Fix bpf_sk_select_reuseport() memory leak

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix bpfskselectreuseport memory leak As pointed out in the original comment, lookup in sockmap can return a TCP ESTABLISHED socket. Such TCP socket may have had SOATTACHREUSEPORTEBPF set before it was ESTABLISHED. In other...

CVE-2025-21683 bpf: Fix bpf_sk_select_reuseport() memory leak

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix bpfskselectreuseport memory leak As pointed out in the original comment, lookup in sockmap can return a TCP ESTABLISHED socket. Such TCP socket may have had SOATTACHREUSEPORTEBPF set before it was ESTABLISHED. In other...

CVE-2025-21678 gtp: Destroy device along with udp socket's netns dismantle.

In the Linux kernel, the following vulnerability has been resolved: gtp: Destroy device along with udp socket's netns dismantle. gtpnewlink links the device to a list in devnetdev instead of srcnet, where a udp tunnel socket is created. Even when srcnet is removed, the device stays alive on...

CVE-2025-21678 gtp: Destroy device along with udp socket's netns dismantle.

In the Linux kernel, the following vulnerability has been resolved: gtp: Destroy device along with udp socket's netns dismantle. gtpnewlink links the device to a list in devnetdev instead of srcnet, where a udp tunnel socket is created. Even when srcnet is removed, the device stays alive on...

CVE-2025-21678

In CVE-2025-21678, Linux kernel gtp: Destroy device along with udp socket’s netns dismantle was fixed. The root cause was gtp_newlink() attaching the device to dev_net(dev) instead of src_net, which meant a UDP tunnel socket created in a different netns could leave the device alive in dev_net(dev...

CVE-2025-21678

In the Linux kernel, the following vulnerability has been resolved: gtp: Destroy device along with udp socket's netns dismantle. gtpnewlink links the device to a list in devnetdev instead of srcnet, where a udp tunnel socket is created. Even when srcnet is removed, the device stays alive on...

CVE-2025-21677 pfcp: Destroy device along with udp socket's netns dismantle.

In the Linux kernel, the following vulnerability has been resolved: pfcp: Destroy device along with udp socket's netns dismantle. pfcpnewlink links the device to a list in devnetdev instead of net, where a udp tunnel socket is created. Even when net is removed, the device stays alive on devnetdev...

CVE-2025-21677 pfcp: Destroy device along with udp socket's netns dismantle.

In the Linux kernel, the following vulnerability has been resolved: pfcp: Destroy device along with udp socket's netns dismantle. pfcpnewlink links the device to a list in devnetdev instead of net, where a udp tunnel socket is created. Even when net is removed, the device stays alive on devnetdev...

CVE-2025-21677

In the Linux kernel, the following vulnerability has been resolved: pfcp: Destroy device along with udp socket's netns dismantle. pfcpnewlink links the device to a list in devnetdev instead of net, where a udp tunnel socket is created. Even when net is removed, the device stays alive on devnetdev...

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-2025-21666 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...

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...