CVE-2026-31493

The CVE-2026-31493 issue exists in Linux kernel RDMA/efa admin queue completion handling: when a command completes with an error, the code may print from a completion context that has already been freed, leading to use-after-free-like behavior. The root cause is use of a freed completion context ...

CVE-2026-31493 RDMA/efa: Fix use of completion ctx after free

In the Linux kernel, the following vulnerability has been resolved: RDMA/efa: Fix use of completion ctx after free On admin queue completion handling, if the admin command completed with error we print data from the completion context. The issue is that we already freed the completion context in...

CVE-2026-31492 RDMA/irdma: Initialize free_qp completion before using it

In the Linux kernel, the following vulnerability has been resolved: RDMA/irdma: Initialize freeqp completion before using it In irdmacreateqp, if ibcopytoudata fails, it will call irdmadestroyqp to clean up which will attempt to wait on the freeqp completion, which is not initialized yet. Fix thi...

CVE-2026-31492 RDMA/irdma: Initialize free_qp completion before using it

In the Linux kernel, the following vulnerability has been resolved: RDMA/irdma: Initialize freeqp completion before using it In irdmacreateqp, if ibcopytoudata fails, it will call irdmadestroyqp to clean up which will attempt to wait on the freeqp completion, which is not initialized yet. Fix thi...

CVE-2026-31491 RDMA/irdma: Harden depth calculation functions

In the Linux kernel, the following vulnerability has been resolved: RDMA/irdma: Harden depth calculation functions An issue was exposed where OS can pass in U32MAX for SQ/RQ/SRQ size. This can cause integer overflow and truncation of SQ/RQ/SRQ depth returning a success when it should have failed...

CVE-2026-31491 RDMA/irdma: Harden depth calculation functions

In the Linux kernel, the following vulnerability has been resolved: RDMA/irdma: Harden depth calculation functions An issue was exposed where OS can pass in U32MAX for SQ/RQ/SRQ size. This can cause integer overflow and truncation of SQ/RQ/SRQ depth returning a success when it should have failed...

CVE-2026-31473 media: mc, v4l2: serialize REINIT and REQBUFS with req_queue_mutex

In the Linux kernel, the following vulnerability has been resolved: media: mc, v4l2: serialize REINIT and REQBUFS with reqqueuemutex MEDIAREQUESTIOCREINIT can run concurrently with VIDIOCREQBUFS0 queue teardown paths. This can race request object cleanup against vb2 queue cancellation and lead to...

CVE-2026-31473 media: mc, v4l2: serialize REINIT and REQBUFS with req_queue_mutex

In the Linux kernel, the following vulnerability has been resolved: media: mc, v4l2: serialize REINIT and REQBUFS with reqqueuemutex MEDIAREQUESTIOCREINIT can run concurrently with VIDIOCREQBUFS0 queue teardown paths. This can race request object cleanup against vb2 queue cancellation and lead to...

CVE-2026-31473

The CVE-2026-31473 affects the Linux kernel media subsystems (mc, v4l2). A race can occur when MEDIA_REQUEST_IOC_REINIT runs concurrently with VIDIOC_REQBUFS queue teardown, risking use-after-free of request objects. The root cause is lack of serialization across these paths; it is addressed by e...

kernel: Linux kernel: Denial of Service via unsafe requeue in rxrpc_recvmsg

A flaw was found in the Linux kernel. A local unprivileged process can exploit an unsafe requeue path in the rxrpcrecvmsg function by using AFRXRPC sockets with MSGDONTWAIT and MSGPEEK flags. This improper handling of the receive message queue can lead to memory corruption, such as Use-After-Free...

PT-2026-34398

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A use-after-free issue exists in the RDMA/efa component during admin queue completion handling. When an admin command completes with an error, the system attempts to print data from the...

PT-2026-34396

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the RDMA/irdma component where the operating system can pass U32 MAX for SQ, RQ, or SRQ size. This can lead to integer overflow and truncation of the SQ, RQ, or SRQ...

PT-2026-34428

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A race condition exists in the nvme-pci component. When a user changes the polled queue count at run time, a brief window during a reset may allow a hipri task to poll a queue before the...

Linux kernel 安全漏洞

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from the cyclic locking dependency between reqlock and the work queue in nciclosedevice, potentially...

Unity Linux 20.1070a Security Update: kernel (UTSA-2026-013859)

"The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013859 advisory. In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Fix memleak in skpsockqueuemsg If tcpbpfsendmsg is running during a tear down...

Unity Linux 20.1070a Security Update: kernel (UTSA-2026-013507)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013507 advisory. In the Linux kernel, the following vulnerability has been resolved: block: ublk: extending queuesize to fix overflow When validating drafted SPDK ublk target, in a...

Unity Linux 20.1070a Security Update: kernel (UTSA-2026-013504)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013504 advisory. In the Linux kernel, the following vulnerability has been resolved: block, bfq: fix uaf for bfqq in bfqexiticqbfqq Commit 64dc8c732f5c block, bfq: fix possible uaf f...

Unity Linux 20.1070a Security Update: kernel (UTSA-2026-013744)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013744 advisory. In the Linux kernel, the following vulnerability has been resolved: usb: udc: remove warning when queue disabled ep It is possible trigger below warning message from...

Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-013774)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013774 advisory. In the Linux kernel, the following vulnerability has been resolved: RDMA/rxe: Fix kernel NULL pointer dereference error When rxequeueinit in the function rxeqpinitre...

Unity Linux 20.1070a Security Update: kernel (UTSA-2026-013453)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013453 advisory. In the Linux kernel, the following vulnerability has been resolved: blk-mq: cancel blk-mq dispatch work in both blkcleanupqueue and diskrelease For avoiding to slow...