CVE-2026-87038

The user-mode verification handler for the i3ctransfer system call, zvrfyi3ctransfer in drivers/i3c/i3chandlers.c, validated the caller-supplied struct i3cdevicedesc in place instead of snapshotting it. It confirmed only that the descriptor was readable by the calling thread KSYSCALLMEMORYREAD,...

USN-8960-1: Linux kernel (OEM) vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - USB Gadget drivers; - Memory management; - Multiple devices driver; - ARM64 architecture; - EROFS file system; -...

Astra Linux – vulnerability in linux-6.1

In the Linux kernel, the following vulnerability has been resolved: i3c: master: Fix info leak and UAF in device unregister path i3cmasterunregisteri3cdevs clears i3cdev-dev-desc before calling deviceunregister. During deviceunregister, devicedel emits a KOBJREMOVE uevent and unbinds the driver...

Astra Linux – vulnerability in linux-6.1

In the Linux kernel, the following vulnerability has been resolved: i3c: master: Fix deviceregister error path When deviceregister fails in i3cmasterregisternewi3cdevs, putdevice is called to drop the reference taken by deviceregister. This drops the last reference, causing the device’s release...

CVE-2026-90386

A flaw was found in the Linux kernel's I3C Improved Inter-Integrated Circuit dw driver. When the system attempts to assign dynamic addresses on an empty I3C bus, a calculation error leads to a 'shift-out-of-bounds' condition. This can cause the system to crash, resulting in a Denial of Service Do...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: i3c: master: mipi-i3c-hci: Fixed a kernel panic when accessing DATdata. The i3cmasterbusinit function may attach the I2C devices before the I3C bus initialization. In this case, the DAT allocentry will be used before the DAT init...

Astra Linux – vulnerability in linux-6.1, linux-5.15

In the Linux kernel, the following vulnerability has been resolved: i3c: mipi-i3c-hci: Mask ring interrupts before ring stop request The bus cleanup path in DMA mode may trigger a RINGOPSTAT interrupt when the ring is being stopped. Depending on the timing between the completion of the ring stop...

Astra Linux – vulnerability in linux-5.15, linux-6.1

In the Linux kernel, the following vulnerability has been resolved: i3c: mipi-i3c-hci: Fix out of bounds access in hcidmairqhandler Do not loop over ring headers in hcidmairqhandler that are not allocated and enabled in hcidmainit. Otherwise, out of bounds access will occur when accessing...

Astra Linux – vulnerability in linux-5.10, linux-6.1

In the Linux kernel, the following vulnerability has been resolved: i3c: dw: avoid shift-out-of-bounds when DAA assigns no devices On an empty bus, ENTDAA assigns nothing; thus, cmd-rxlen the number of addresses left unassigned equals master-maxdevs. The GENMASK index master-maxdevs - cmd-rxlen -...

CVE-2026-93199

A flaw was found in the Linux kernel's I3C master driver. The i3cmastersearchi3cdevduplicate function, which is designed to identify duplicate I3C target devices, could incorrectly identify the I3C master controller itself as a duplicate. This occurs because the function matches the controller's...

CVE-2026-93202

A flaw was found in the i3c master driver of the Linux kernel. This vulnerability occurs due to recursive locking during device registration, where the system attempts to acquire the same lock multiple times. A local attacker could potentially trigger this condition, leading to a system deadlock...

CVE-2026-93200

A flaw was found in the Linux kernel's i3c master driver. This use-after-free vulnerability occurs because sysfs attribute callbacks can attempt to access memory that has already been deallocated. An attacker could potentially exploit this to cause system instability or a denial of service...

CVE-2026-19185

The system-call verifier for i3cdoccc in drivers/i3c/i3chandlers.c validated the outer struct i3ccccpayload, the broadcast ccc.data buffer and the targets.payloads array, but did not validate the per-target data buffers those array elements point at. Each struct i3cccctargetpayload carries its ow...

EUVD-2026-92286

The system-call verifier for i3cdoccc in drivers/i3c/i3chandlers.c validated the outer struct i3ccccpayload, the broadcast ccc.data buffer and the targets.payloads array, but did not validate the per-target data buffers those array elements point at. Each struct i3cccctargetpayload carries its ow...

CVE-2026-19185

The system-call verifier for i3cdoccc in drivers/i3c/i3chandlers.c validated the outer struct i3ccccpayload, the broadcast ccc.data buffer and the targets.payloads array, but did not validate the per-target data buffers those array elements point at. Each struct i3cccctargetpayload carries its ow...

CVE-2026-19185 Unvalidated user-supplied buffer pointers in the I3C do_ccc system call handler allow kernel memory read/write from user mode

The system-call verifier for i3cdoccc in drivers/i3c/i3chandlers.c validated the outer struct i3ccccpayload, the broadcast ccc.data buffer and the targets.payloads array, but did not validate the per-target data buffers those array elements point at. Each struct i3cccctargetpayload carries its ow...

CVE-2026-19185 Unvalidated user-supplied buffer pointers in the I3C do_ccc system call handler allow kernel memory read/write from user mode

The system-call verifier for i3cdoccc in drivers/i3c/i3chandlers.c validated the outer struct i3ccccpayload, the broadcast ccc.data buffer and the targets.payloads array, but did not validate the per-target data buffers those array elements point at. Each struct i3cccctargetpayload carries its ow...

CVE-2026-19185 Unvalidated user-supplied buffer pointers in the I3C do_ccc system call handler allow kernel memory read/write from user mode

The system-call verifier for i3cdoccc in drivers/i3c/i3chandlers.c validated the outer struct i3ccccpayload, the broadcast ccc.data buffer and the targets.payloads array, but did not validate the per-target data buffers those array elements point at. Each struct i3cccctargetpayload carries its ow...

CVE-2026-19185

In Zephyr RTOS builds with CONFIG_USERSPACE, a vulnerability exists in the i3c_do_ccc() system call handler within drivers/i3c/i3c_handlers.c. The system-call verifier fails to validate per-target data buffers, allowing an unprivileged user-mode thread with I3C controller access to provide arbitr...

PT-2026-104750

The system-call verifier for i3c do ccc in drivers/i3c/i3c handlers.c validated the outer struct i3c ccc payload, the broadcast ccc.data buffer and the targets.payloads array, but did not validate the per-target data buffers those array elements point at. Each struct i3c ccc target payload carrie...