CVE-2026-93120 usb: gadget: configfs: fix out-of-bounds read of qw_sign

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: configfs: fix out-of-bounds read of qwsign osdescqwsignshow passes OSSTRINGQWSIGNLEN as the input length to utf16stoutf8s, but that argument counts UTF-16 code units while OSSTRINGQWSIGNLEN 14 is the byte size of...

CVE-2026-93056 usb: gadget: f_uac1_legacy: remove broken string configfs attributes

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: fuac1legacy: remove broken string configfs attributes The UAC1STRATTRIBUTE macro defines configfs show/store handlers for the fnplay, fncap, and fncntl string options. The store function contains an inverted null che...

EUVD-2026-82166

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: fuac1legacy: remove broken string configfs attributes The UAC1STRATTRIBUTE macro defines configfs show/store handlers for the fnplay, fncap, and fncntl string options. The store function contains an inverted null che...

CVE-2026-93056

This vulnerability affects the Linux kernel 's USB gadget f_uac1_legacy driver. The UAC1_STR_ATTRIBUTE macro defines configfs show/store handlers for the fn_play, fn_cap, and fn_cntl string options, but its store function contains an inverted null check on the kstrndup() return value. As a result...

CVE-2026-93056 usb: gadget: f_uac1_legacy: remove broken string configfs attributes

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: fuac1legacy: remove broken string configfs attributes The UAC1STRATTRIBUTE macro defines configfs show/store handlers for the fnplay, fncap, and fncntl string options. The store function contains an inverted null che...

CVE-2026-90206 nvmet: fix max_qid race between configfs and controller allocation

In the Linux kernel, the following vulnerability has been resolved: nvmet: fix maxqid race between configfs and controller allocation The function nvmetsubsysattrqidmaxstore can race against nvmetallocctrl when a subsystem's maxqid limit is modified. Suppose maxqid is currently 64. If...

CVE-2026-90206

CVE-2026-90206 is a race condition in the Linux kernel's nvmet (NVM Express Target) subsystem. The function nvmet_alloc_ctrl() allocates queue memory based on the subsystem's current max_qid , but a concurrent write via configfs can increase max_qid before the new controller is added to the subsy...

CVE-2026-90206 nvmet: fix max_qid race between configfs and controller allocation

In the Linux kernel, the following vulnerability has been resolved: nvmet: fix maxqid race between configfs and controller allocation The function nvmetsubsysattrqidmaxstore can race against nvmetallocctrl when a subsystem's maxqid limit is modified. Suppose maxqid is currently 64. If...

EUVD-2026-81799

In the Linux kernel, the following vulnerability has been resolved: nvmet: fix maxqid race between configfs and controller allocation The function nvmetsubsysattrqidmaxstore can race against nvmetallocctrl when a subsystem's maxqid limit is modified. Suppose maxqid is currently 64. If...

EUVD-2026-81783

In the Linux kernel, the following vulnerability has been resolved: nullblk: use DEFINEMUTEX for the file-scope mutex In nullinit, mutexinit&lock currently happens after configfsregistersubsystem, which exposes the nullb subsystem to userspace. A racing mkdir into /sys/kernel/config/nullb/ can...

CVE-2026-90190 null_blk: use DEFINE_MUTEX for the file-scope mutex

In the Linux kernel, the following vulnerability has been resolved: nullblk: use DEFINEMUTEX for the file-scope mutex In nullinit, mutexinit&lock currently happens after configfsregistersubsystem, which exposes the nullb subsystem to userspace. A racing mkdir into /sys/kernel/config/nullb/ can...

CVE-2026-90189 null_blk: register configfs subsystem after creating default devices

In the Linux kernel, the following vulnerability has been resolved: nullblk: register configfs subsystem after creating default devices In nullinit, configfsregistersubsystem currently runs before registerblkdev, so when nullblk is built as a module, a racing mkdir + poweron from userspace can...

EUVD-2026-81782

In the Linux kernel, the following vulnerability has been resolved: nullblk: register configfs subsystem after creating default devices In nullinit, configfsregistersubsystem currently runs before registerblkdev, so when nullblk is built as a module, a racing mkdir + poweron from userspace can...

CVE-2026-90189

CVE-2026-90189 affects the Linux kernel's null_blk module. In null_init(), configfs_register_subsystem() is called before register_blkdev(), creating a race window where a userspace mkdir() + poweron can reach null_add_dev() while null_major is still 0, causing a WARN_ON failure in __add_disk(). ...

CVE-2026-90189 null_blk: register configfs subsystem after creating default devices

In the Linux kernel, the following vulnerability has been resolved: nullblk: register configfs subsystem after creating default devices In nullinit, configfsregistersubsystem currently runs before registerblkdev, so when nullblk is built as a module, a racing mkdir + poweron from userspace can...

CVE-2026-90186 null_blk: reject per-device queue resize for shared tag set

In the Linux kernel, the following vulnerability has been resolved: nullblk: reject per-device queue resize for shared tag set When sharedtags is enabled, nullsetuptagset makes the device use the global tagset, whose driverdata stays NULL. nullmapqueues therefore falls back to the module-wide...

CVE-2026-90185 null_blk: serialize configfs attribute stores with the lock

In the Linux kernel, the following vulnerability has been resolved: nullblk: serialize configfs attribute stores with the lock The NULLBDEVICEATTR store takes no lock: applyfn attributes submitqueues, pollqueues get dev-NAME written again after applyfn returns, outside its lock; APPLY=NULL...

CVE-2026-90185

This Linux kernel vulnerability affects the null_blk driver's configfs attribute store path. The NULLB_DEVICE_ATTR _store handlers fail to take the device lock, so concurrent stores on separate file descriptors race . For apply_fn attributes (submit_queues, poll_queues), a losing store can overwr...

CVE-2026-90185 null_blk: serialize configfs attribute stores with the lock

In the Linux kernel, the following vulnerability has been resolved: nullblk: serialize configfs attribute stores with the lock The NULLBDEVICEATTR store takes no lock: applyfn attributes submitqueues, pollqueues get dev-NAME written again after applyfn returns, outside its lock; APPLY=NULL...

EUVD-2026-81778

In the Linux kernel, the following vulnerability has been resolved: nullblk: serialize configfs attribute stores with the lock The NULLBDEVICEATTR store takes no lock: applyfn attributes submitqueues, pollqueues get dev-NAME written again after applyfn returns, outside its lock; APPLY=NULL...