CVE-2025-21677

CVE-2025-21677 describes a Linux kernel PFCP issue where the device is destroyed along with the UDP socket’s netns. The root cause is that pfcp_newlink() links the PFCP device to dev_net(dev) rather than the socket’s netns, so removing netns ns1 can leave the device alive in dev_net(dev) and trig...

CVE-2025-21676 net: fec: handle page_pool_dev_alloc_pages error

In the Linux kernel, the following vulnerability has been resolved: net: fec: handle pagepooldevallocpages error The fecenetupdatecbd function calls pagepooldevallocpages but did not handle the case when it returned NULL. There was a WARNON!newpage but it would still proceed to use the NULL point...

CVE-2025-21675 net/mlx5: Clear port select structure when fail to create

In the Linux kernel, the following vulnerability has been resolved: net/mlx5: Clear port select structure when fail to create Clear the port select structure on error so no stale values left after definers are destroyed. That's because the mlx5lagdestroydefiners always try to destroy all lag...

CVE-2025-21673 smb: client: fix double free of TCP_Server_Info::hostname

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix double free of TCPServerInfo::hostname When shutting down the server in cifsputtcpsession, cifsd thread might be reconnecting to multiple DFS targets before it realizes it should exit the loop, so @server-hostnam...

CVE-2025-21672 afs: Fix merge preference rule failure condition

In the Linux kernel, the following vulnerability has been resolved: afs: Fix merge preference rule failure condition syzbot reported a lock held when returning to userspace1. This is because if argc is less than 0 and the function returns directly, the held inode lock is not released. Fix this by...

CVE-2025-21672 afs: Fix merge preference rule failure condition

In the Linux kernel, the following vulnerability has been resolved: afs: Fix merge preference rule failure condition syzbot reported a lock held when returning to userspace1. This is because if argc is less than 0 and the function returns directly, the held inode lock is not released. Fix this by...

CVE-2025-21671 zram: fix potential UAF of zram table

In the Linux kernel, the following vulnerability has been resolved: zram: fix potential UAF of zram table If zrammetaalloc failed early, it frees allocated zram-table without setting it NULL. Which will potentially cause zrammetafree to access the table if user reset an failed and uninitialized...

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-2025-21670 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 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-2025-21667 iomap: avoid avoid truncating 64-bit offset to 32 bits

In the Linux kernel, the following vulnerability has been resolved: iomap: avoid avoid truncating 64-bit offset to 32 bits on 32-bit kernels, iomapwritedelallocscan was inadvertently using a 32-bit position due to folionextindex returning an unsigned long. This could lead to an infinite loop when...

CVE-2025-21665

The CVE-2025-21665 issue is a Linux kernel bug where 64-bit offsets were truncated to 32 bits in folio_seek_hole_data() on 32-bit kernels, potentially causing an infinite loop when writing to XFS. Several connected advisories document the fix across distributions (e.g., Debian, Amazon Linux 2/ALA...

CVE-2025-21665 filemap: avoid truncating 64-bit offset to 32 bits

In the Linux kernel, the following vulnerability has been resolved: filemap: avoid truncating 64-bit offset to 32 bits On 32-bit kernels, folioseekholedata was inadvertently truncating a 64-bit value to 32 bits, leading to a possible infinite loop when writing to an xfs filesystem...

CVE-2024-57948

Summary (CVE-2024-57948) : In the Linux kernel, the mac802154 subsystem had a vulnerability where, during removal of an IEEE 802.15.4 network interface, a list-del operation could run on a stale sdata entry if local interfaces had not been validated first. This could allow a corrupted list path t...

PT-2025-18416

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The issue concerns the Linux kernel, where a vulnerability has been resolved. The problem occurs when Virtual Functions VFs attempt to trigger a full GT reset, which they do not have...

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 the Linux kernel that stems from the pfcpnewlink function linking a device to the incorrect network namespace devnetdev instead of the correc...

PT-2025-8992

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.13.0-rc7-next-20250116-arm64-renesas-00002-g35245dfdc62c Description A vulnerability in the Linux kernel has been resolved, specifically in the ravb driver. The issue was related to missing rtnl lock in the...

The vulnerability of the btrfs_quota_disable() function in the btrfs component of Linux kernel-based operating systems allows a malicious actor to trigger a service failure.

The vulnerability of the btrfsquotadisable function in the btrfs component of Linux kernel-based operating systems is related to the lack of memory release after the effective lifespan of the function has ended. Exploiting this vulnerability could allow an attacker to cause a service failure...