CVE-2026-46065

A flaw was found in the Linux kernel's framebuffer device fbdev deferred I/O defio mechanism. A local user with an active mapping of graphics memory could trigger a device hot-unplug, leading to the system accessing undefined memory. This can result in system instability or a crash, causing a...

EUVD-2026-32270

In the Linux kernel, the following vulnerability has been resolved: ext4: don't set EXT4GETBLOCKSCONVERT when splitting before submitting I/O When allocating blocks during within-EOF DIO and writeback with dioreadnolock enabled, EXT4GETBLOCKSPREIO was set to split an existing large unwritten...

CVE-2026-46065

In the Linux kernel, the following vulnerability has been resolved: fbdev: defio: Disconnect deferred I/O from the lifetime of struct fbinfo Hold state of deferred I/O in struct fbdeferrediostate. Allocate an instance as part of initializing deferred I/O and remove it only after the final mapping...

CVE-2026-45953

In the Linux kernel, the following vulnerability has been resolved: md/raid5: fix IO hang with degraded array with llbitmap When llbitmap bit state is still unwritten, any new write should force rcw, as bitmapops-blockssynced is checked in handlestripedirtying. However, later the same check is...

UBUNTU-CVE-2026-45944

In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Clear Present bit before tearing down context entry When tearing down a context entry, the current implementation zeros the entire 128-bit entry using multiple 64-bit writes. This creates a window where the hardware c...

UBUNTU-CVE-2026-46065

In the Linux kernel, the following vulnerability has been resolved: fbdev: defio: Disconnect deferred I/O from the lifetime of struct fbinfo Hold state of deferred I/O in struct fbdeferrediostate. Allocate an instance as part of initializing deferred I/O and remove it only after the final mapping...

CVE-2026-45858

In the Linux kernel, the following vulnerability has been resolved: ext4: don't zero the entire extent if EXT4EXTDATAPARTIALVALID1 When allocating initialized blocks from a large unwritten extent, or when splitting an unwritten extent during end I/O and converting it to initialized, there is...

CVE-2026-46065

In the Linux kernel, the following vulnerability has been resolved: fbdev: defio: Disconnect deferred I/O from the lifetime of struct fbinfo Hold state of deferred I/O in struct fbdeferrediostate. Allocate an instance as part of initializing deferred I/O and remove it only after the final mapping...

CVE-2026-46065

CVE-2026-46065 affects the Linux kernel framebuffer (fbdev) defio mechanism. The issue arises from disconnecting deferred I/O from the lifetime of struct fb_info, by holding state in struct fb_deferred_io_state and freeing the instance only after the final mapping closes. If fb_info/defio are fre...

CVE-2026-46065 fbdev: defio: Disconnect deferred I/O from the lifetime of struct fb_info

In the Linux kernel, the following vulnerability has been resolved: fbdev: defio: Disconnect deferred I/O from the lifetime of struct fbinfo Hold state of deferred I/O in struct fbdeferrediostate. Allocate an instance as part of initializing deferred I/O and remove it only after the final mapping...

CVE-2026-46065

In the Linux kernel, the following vulnerability has been resolved: fbdev: defio: Disconnect deferred I/O from the lifetime of struct fbinfo Hold state of deferred I/O in struct fbdeferrediostate. Allocate an instance as part of initializing deferred I/O and remove it only after the final mapping...

CVE-2026-45944

In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Clear Present bit before tearing down context entry When tearing down a context entry, the current implementation zeros the entire 128-bit entry using multiple 64-bit writes. This creates a window where the hardware c...

CVE-2024-47272

Incorrect authorization vulnerability in IO Module functionality in Synology Surveillance Station before 9.2.2-11575 and 9.2.2-9575 allows remote authenticated users with administrator privileges to limited file write via unspecified vectors...

CVE-2024-47272

CVE-2024-47272 describes an incorrect authorization in the IO Module of Synology Surveillance Station. Remote authenticated users with administrator privileges can perform a limited file write via unspecified vectors. Affected releases include Surveillance Station versions before 9.2.2-11575 and ...

PT-2026-43810

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the erofs component where compressed folios for ztailpacking pclusters are not validated before being added to I/O chains. This can lead to a NULL pointer dereference...

PT-2026-43583

Incorrect authorization vulnerability in IO Module functionality in Synology Surveillance Station before 9.2.2-11575 and 9.2.2-9575 allows remote authenticated users with administrator privileges to limited file write via unspecified vectors...

CVE-2026-46065

fbdev: defio: Disconnect deferred I/O from the lifetime of struct fbinfo...

CVE-2026-45985

ext4: dont set EXT4GETBLOCKSCONVERT when splitting before submitting I/O...

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 delay in I/O operations within the fbdev defio module, where the lifecycle of the struct fbin...

Linux Distros Unpatched Vulnerability : CVE-2026-45985

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ext4: don't set EXT4GETBLOCKSCONVERT when splitting before submitting I/O When allocating blocks during within-EOF DIO and writeback with dioreadnolock enabled,...