CVE-2026-98005 erofs: delimit inode_share cache key components

In the Linux kernel, the following vulnerability has been resolved: erofs: delimit inodeshare cache key components Previously, inodeshare keys were encoded as follows: fingerprint || domainid It would be better to have a separator between the fingerprint and domain ID so that the fingerprint won'...

CVE-2026-98003 iommu/amd: Do not reallocate GA log buffers on resume

In the Linux kernel, the following vulnerability has been resolved: iommu/amd: Do not reallocate GA log buffers on resume Commit c5e1a1eb9279 "iommu/amd: Simplify and Consolidate Virtual APIC AVIC Enablement" moved the GA log allocation from iommuinitpci to enableiommusvapic, which is called on...

CVE-2026-98001 hwmon: (ltc4282) Make sure clk_init_data is fully initialized

In the Linux kernel, the following vulnerability has been resolved: hwmon: ltc4282 Make sure clkinitdata is fully initialized The clkinitdata structure contains several mutually-exclusive members for different methods to specify the possible parents of a clock, prompting drivers to initialize onl...

CVE-2026-98002 iommu/amd: Fix ineffective error check in nested domain allocation

In the Linux kernel, the following vulnerability has been resolved: iommu/amd: Fix ineffective error check in nested domain allocation amdiommupdomidalloc returns an int: a domain ID on success, or the negative errno from idaallocrange when the ID space is exhausted or memory is short...

CVE-2026-98000 hwmon: Fix potential UAF in pec_store

In the Linux kernel, the following vulnerability has been resolved: hwmon: Fix potential UAF in pecstore Sashiko reports: In pecstore, a guardmutex&hwdev-lock is taken. If the chip write operation returns an error other than -EOPNOTSUPP, the code jumps to the put label, which calls putdevicehdev...

CVE-2026-97997 virtio_ring: fix stale descriptor flags after a failed packed add

In the Linux kernel, the following vulnerability has been resolved: virtioring: fix stale descriptor flags after a failed packed add In a packed ring the AVAIL and USED bits sit in the descriptor itself, so writing them makes that descriptor available. Those bit combinations flip meaning on every...

CVE-2026-97996

In the Linux kernel, the following vulnerability has been resolved: virtio: fix use-after-free in unregistervirtiodevice deviceunregister is devicedel plus putdevice. When the caller holds no extra reference, that drops the last one and runs the release callback, which for several transports free...

CVE-2026-97996 virtio: fix use-after-free in unregister_virtio_device()

In the Linux kernel, the following vulnerability has been resolved: virtio: fix use-after-free in unregistervirtiodevice deviceunregister is devicedel plus putdevice. When the caller holds no extra reference, that drops the last one and runs the release callback, which for several transports free...

EUVD-2026-86650

In the Linux kernel, the following vulnerability has been resolved: virtio: fix use-after-free in unregistervirtiodevice deviceunregister is devicedel plus putdevice. When the caller holds no extra reference, that drops the last one and runs the release callback, which for several transports free...

CVE-2026-97996 virtio: fix use-after-free in unregister_virtio_device()

In the Linux kernel, the following vulnerability has been resolved: virtio: fix use-after-free in unregistervirtiodevice deviceunregister is devicedel plus putdevice. When the caller holds no extra reference, that drops the last one and runs the release callback, which for several transports free...

CVE-2026-97996

A use-after-free vulnerability exists in the Linux kernel within the unregister_virtio_device() function. The issue occurs because device_unregister() drops the last reference to the device, triggering a release callback that frees the memory containing the virtio_device struct for certain transp...

CVE-2026-97995 virtio_console: do not free control-out buffers on remove

In the Linux kernel, the following vulnerability has been resolved: virtioconsole: do not free control-out buffers on remove sendcontrolmsg publishes &portdev-cpkt as the control-out virtqueue cookie. removevqs walks every virtqueue and passes leftover cookies to freebuf, which treats them as...

CVE-2026-97993 vhost-vdpa: don't install the eventfd_ctx_fdget() error in config_ctx

In the Linux kernel, the following vulnerability has been resolved: vhost-vdpa: don't install the eventfdctxfdget error in configctx vhostvdpasetconfigcall swaps the eventfdctxfdget return value into v-configctx before checking it, so on failure the field briefly holds an ERRPTR: ctx = fd ==...

CVE-2026-97994 vhost/vdpa: reject VRING_NUM larger than device max

In the Linux kernel, the following vulnerability has been resolved: vhost/vdpa: reject VRINGNUM larger than device max vhostvringsetnum accepts any non-zero power-of-two queue size that fits in 16 bits. vhost-vdpa then passes that value to setvqnum without comparing it with getvqnummax. A process...

CVE-2026-97992 vhost-vdpa: protect config_ctx from being freed under the config callback

In the Linux kernel, the following vulnerability has been resolved: vhost-vdpa: protect configctx from being freed under the config callback vhostvdpaconfigcb loads v-configctx and signals it without taking a reference and without holding any lock: struct eventfdctx configctx = v-configctx; if...

CVE-2026-97990 vdpa_sim_net: check TX pull result before RX copy

In the Linux kernel, the following vulnerability has been resolved: vdpasimnet: check TX pull result before RX copy vringhiovpulliotlb returns a signed byte count. A failed TX pull is currently added to the unsigned byte counter and then passed as a sizet length to receivefilter and...

CVE-2026-97991 vdpa_sim_blk: reject out-of-range sector starts

In the Linux kernel, the following vulnerability has been resolved: vdpasimblk: reject out-of-range sector starts vdpasimblkcheckrange logs an invalid start sector but continues validating the request. The subsequent unsigned capacity subtraction can underflow and let an out-of-range buffer offse...

CVE-2026-97989 vduse: validate virtqueue alignment

In the Linux kernel, the following vulnerability has been resolved: vduse: validate virtqueue alignment vdusevalidateconfig only checks the upper bound of vqalign. Invalid values can therefore reach vringcreatevirtqueuemap. The split-ring helpers use align - 1 as a bit mask, so the alignment must...

semgrep-rules

semgrep-rules "The attack surface is the vulnerability. Finding a bug there is just a detail." -- Mark Dowd "Some details are more important than others." -- Fedor G. Pikus A collection of my Semgrep rules to facilitate vulnerability research. Blog posts...

semgrep-rules

semgrep-rules "La superficie de ataque es la vulnerabilidad. Encontrar un bug allí es solo un detalle." -- Mark Dowd "Algunos detalles son más importantes que otros." -- Fedor G. Pikus Una colección de mis reglas de Semgrep para facilitar la investigación de vulnerabilidades. Entradas del blog...