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 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

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-2026-46064 ibmasm: fix heap over-read in ibmasm_send_i2o_message()

In the Linux kernel, the following vulnerability has been resolved: ibmasm: fix heap over-read in ibmasmsendi2omessage The ibmasmsendi2omessage function uses getdotcommandsize to compute the byte count for memcpytoio, but this value is derived from user-controlled fields in the dotcommandheader...

CVE-2026-45956 drm/exynos: vidi: use priv->vidi_dev for ctx lookup in vidi_connection_ioctl()

In the Linux kernel, the following vulnerability has been resolved: drm/exynos: vidi: use priv-vididev for ctx lookup in vidiconnectionioctl vidiconnectionioctl retrieves the driverdata from drmdev-dev to obtain a struct vidicontext pointer. However, drmdev-dev is the exynos-drm master device, an...

CVE-2026-45953 md/raid5: fix IO hang with degraded array with llbitmap

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...

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

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 ...

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...

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-2026-45985

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...

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...