CVE-2025-21705

In the Linux kernel, the following vulnerability has been resolved: mptcp: handle fastopen disconnect correctly Syzbot was able to trigger a data stream corruption: WARNING: CPU: 0 PID: 9846 at net/mptcp/protocol.c:1024 mptcpcleanuna+0xddb/0xff0 net/mptcp/protocol.c:1024 Modules linked in: CPU: 0...

DEBIAN-CVE-2025-21705

In the Linux kernel, the following vulnerability has been resolved: mptcp: handle fastopen disconnect correctly Syzbot was able to trigger a data stream corruption: WARNING: CPU: 0 PID: 9846 at net/mptcp/protocol.c:1024 mptcpcleanuna+0xddb/0xff0 net/mptcp/protocol.c:1024 Modules linked in: CPU: 0...

UBUNTU-CVE-2025-21705

In the Linux kernel, the following vulnerability has been resolved: mptcp: handle fastopen disconnect correctly Syzbot was able to trigger a data stream corruption: WARNING: CPU: 0 PID: 9846 at net/mptcp/protocol.c:1024 mptcpcleanuna+0xddb/0xff0 net/mptcp/protocol.c:1024 Modules linked in: CPU: 0...

UBUNTU-CVE-2025-21731

In the Linux kernel, the following vulnerability has been resolved: nbd: don't allow reconnect after disconnect Following process can cause nbdconfig UAF: 1 grab nbdconfig temporarily; 2 nbdgenldisconnect flush all recvwork and release the initial reference: nbdgenldisconnect nbddisconnectandput...

CVE-2025-21751

In the Linux kernel, the following vulnerability has been resolved: net/mlx5: HWS, change error flow on matcher disconnect Currently, when firmware failure occurs during matcher disconnect flow, the error flow of the function reconnects the matcher back and returns an error, which continues runni...

CVE-2025-21751 net/mlx5: HWS, change error flow on matcher disconnect

In the Linux kernel, the following vulnerability has been resolved: net/mlx5: HWS, change error flow on matcher disconnect Currently, when firmware failure occurs during matcher disconnect flow, the error flow of the function reconnects the matcher back and returns an error, which continues runni...

CVE-2025-21751 net/mlx5: HWS, change error flow on matcher disconnect

In the Linux kernel, the following vulnerability has been resolved: net/mlx5: HWS, change error flow on matcher disconnect Currently, when firmware failure occurs during matcher disconnect flow, the error flow of the function reconnects the matcher back and returns an error, which continues runni...

CVE-2025-21751

CVE-2025-21751 affects the Linux kernel net/mlx5 HWS: when a firmware error occurs during the matcher disconnect flow, the kernel previously attempted to reconnect the matcher and could free a matcher that was still on the list, causing use-after-free and a crash. The patch changes the error path...

CVE-2025-21751 net/mlx5: HWS, change error flow on matcher disconnect

In the Linux kernel, the following vulnerability has been resolved: net/mlx5: HWS, change error flow on matcher disconnect Currently, when firmware failure occurs during matcher disconnect flow, the error flow of the function reconnects the matcher back and returns an error, which continues runni...

CVE-2025-21731 nbd: don't allow reconnect after disconnect

In the Linux kernel, the following vulnerability has been resolved: nbd: don't allow reconnect after disconnect Following process can cause nbdconfig UAF: 1 grab nbdconfig temporarily; 2 nbdgenldisconnect flush all recvwork and release the initial reference: nbdgenldisconnect nbddisconnectandput...

CVE-2025-21731

The Linux kernel contains a use-after-free (UAF) vulnerability in the nbd (Network Block Device) driver. The flaw occurs because the nbd_genl_disconnect() function flushes work items and releases references, but if a reference is temporarily grabbed, it remains non-zero. Subsequent calls to nbd_g...

CVE-2025-21705 mptcp: handle fastopen disconnect correctly

In the Linux kernel, the following vulnerability has been resolved: mptcp: handle fastopen disconnect correctly Syzbot was able to trigger a data stream corruption: WARNING: CPU: 0 PID: 9846 at net/mptcp/protocol.c:1024 mptcpcleanuna+0xddb/0xff0 net/mptcp/protocol.c:1024 Modules linked in: CPU: 0...

CVE-2025-21705

CVE-2025-21705 affects the Linux kernel MPTCP implementation (mptcp: handle fastopen disconnect correctly). Root cause: internal disconnect() during FASTOPEN errors was not properly accounted, risking data stream corruption. Fix: increase the socket disconnect counter so other threads waiting on ...

CVE-2025-21705 mptcp: handle fastopen disconnect correctly

In the Linux kernel, the following vulnerability has been resolved: mptcp: handle fastopen disconnect correctly Syzbot was able to trigger a data stream corruption: WARNING: CPU: 0 PID: 9846 at net/mptcp/protocol.c:1024 mptcpcleanuna+0xddb/0xff0 net/mptcp/protocol.c:1024 Modules linked in: CPU: 0...

CVE-2025-21705

In the Linux kernel, the following vulnerability has been resolved: mptcp: handle fastopen disconnect correctly Syzbot was able to trigger a data stream corruption: WARNING: CPU: 0 PID: 9846 at net/mptcp/protocol.c:1024 mptcpcleanuna+0xddb/0xff0 net/mptcp/protocol.c:1024 Modules linked in: CPU: 0...

Linux kernel 资源管理错误漏洞

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 resource management error vulnerability that stems from the mlx5 driver error streaming on matcher disconnect could lead to reuse after release...

CVE-2025-21751: Use After Free

In the Linux kernel, the following vulnerability has been resolved: net/mlx5: HWS, change error flow on matcher disconnect Currently, when firmware failure occurs during matcher disconnect flow, the error flow of the function reconnects the matcher back and returns an error, which continues runni...

Linux kernel 资源管理错误漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A resource management error vulnerability exists in Linux kernel that stems from nbd allowing reconnection after disconnection, which could lead to reuse after release...

CVE-2022-49501

In the Linux kernel, the following vulnerability has been resolved: usbnet: Run unregisternetdev before unbind again Commit 2c9d6c2b871d "usbnet: run unbind before unregisternetdev" sought to fix a use-after-free on disconnect of USB Ethernet adapters. It turns out that a different fix is necessa...

CVE-2022-49297

In the Linux kernel, the following vulnerability has been resolved: nbd: fix io hung while disconnecting device In our tests, "qemu-nbd" triggers a io hung: INFO: task qemu-nbd:11445 blocked for more than 368 seconds. Not tainted 5.18.0-rc3-next-20220422-00003-g2176915513ca 884 "echo 0...