kernel: i2c: stub: Reject I2C block transfers with invalid length

A flaw was found in the Linux kernel's i2c-stub driver. A local user with access to the /dev/i2c- device can exploit this vulnerability by issuing an I2C System Management Bus SMBus input/output control ioctl command with a specially crafted block transfer length. This invalid length can cause th...

SUSE CVE-2026-81007

In the Linux kernel, the following vulnerability has been resolved: ipmi: ipmb: validate write message length ipmbwrite read message fields before validating the length byte. A zero or short write can read uninitialized stack bytes. A length smaller than the SMBus header underflows the block writ...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: i2c: tegra: check msg length in SMBUS block read For SMBUS block read, do not continue reading if the message length passed from the device is ‘0’ or greater than the maximum allowed bytes...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: i2c: ismt: A buffer overflow bug has been fixed in ismtaccess. When the driver does not check the data from the user, the variable ‘data-block0’ may become very large, leading to a buffer overflow bug. The following log can revea...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, Linux, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: i2c: smbus – fixed the issue of NULL function pointers being dereferenced. Baruch reported an OOPS error when using the Designware controller as the target. Only targeting mode breaks the assumption that one transfer function ...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: HID: mcp2221: prevented a buffer overflow in mcpsmbuswrite Slight warning: drivers/hid/hid-mcp2221.c:388 mcpsmbuswrite error: memcpy ‘&mcp-txbuf5’ is too small 59 vs 255 drivers/hid/hid-mcp2221.c:388 mcpsmbuswrite error: memcp...

Astra Linux – Vulnerability in Linux 5.15

A buffer overflow vulnerability was discovered in the Linux kernel’s Intel iSMT SMBus host controller driver, particularly in its handling of the I2CSMBUSBLOCKPROCCALL case using the ioctl I2CSMBUS function. This flaw could allow a local user to cause the system to crash...

SUSE CVE-2026-89622

In the Linux kernel, the following vulnerability has been resolved: HID: mcp2221: clear rxbuf after I2C/SMBus transfer completes mcpi2csmbusread stores the caller-supplied buffer pointer in mcp-rxbuf for the duration of a transfer but never clears it when the transfer finishes or times out. Once...

Linux Distros Unpatched Vulnerability : CVE-2026-89622

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - HID: mcp2221: clear rxbuf after I2C/SMBus transfer completes mcpi2csmbusread stores the caller- supplied buffer pointer in mcp-rxbuf for the duration of a...

Linux Distros Unpatched Vulnerability : CVE-2026-81007

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ipmi: ipmb: validate write message length ipmbwrite read message fields before validating the length byte. A zero or short write can read uninitialized stack...

DEBIAN-CVE-2026-81007

In the Linux kernel, the following vulnerability has been resolved: ipmi: ipmb: validate write message length ipmbwrite read message fields before validating the length byte. A zero or short write can read uninitialized stack bytes. A length smaller than the SMBus header underflows the block writ...

AZL-100478 CVE-2026-81007 affecting package kernel 6.6.150.1-1

In the Linux kernel, the following vulnerability has been resolved: ipmi: ipmb: validate write message length ipmbwrite read message fields before validating the length byte. A zero or short write can read uninitialized stack bytes. A length smaller than the SMBus header underflows the block writ...

CVE-2026-81007

In the Linux kernel, the following vulnerability has been resolved: ipmi: ipmb: validate write message length ipmbwrite read message fields before validating the length byte. A zero or short write can read uninitialized stack bytes. A length smaller than the SMBus header underflows the block writ...

UBUNTU-CVE-2026-81007

In the Linux kernel, the following vulnerability has been resolved: ipmi: ipmb: validate write message length ipmbwrite read message fields before validating the length byte. A zero or short write can read uninitialized stack bytes. A length smaller than the SMBus header underflows the block writ...

CVE-2026-80931

In the Linux kernel, the following vulnerability has been resolved: w1: ds28e17: reject an oversize length on an I2C block read w1f19i2cmastertransfer is the masterxfer for the DS28E17 1-Wire to I2C bridge. On an I2CMRECVLEN read, it takes the length from the device. The downstream slave puts a...

CVE-2026-89622

CVE-2026-89622 is a write use-after-free in the Linux kernel's HID mcp2221 driver . The function mcp_i2c_smbus_read() stores a caller-supplied buffer pointer in mcp->rxbuf but fails to clear it when an I2C/SMBus transfer completes or times out. Once the caller frees the buffer, a delayed or sp...

CVE-2026-80931

In the Linux kernel, the following vulnerability has been resolved: w1: ds28e17: reject an oversize length on an I2C block read w1f19i2cmastertransfer is the masterxfer for the DS28E17 1-Wire to I2C bridge. On an I2CMRECVLEN read, it takes the length from the device. The downstream slave puts a...

PT-2026-96419

In the Linux kernel, the following vulnerability has been resolved: HID: mcp2221: clear rxbuf after I2C/SMBus transfer completes mcp i2c smbus read stores the caller-supplied buffer pointer in mcp-rxbuf for the duration of a transfer but never clears it when the transfer finishes or times out. On...

PT-2026-90137

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 7.2.6-1.1 Description An issue exists in the IPMB Intelligent Platform Management Bus component where the ipmb write function reads message fields before validating the length byte. This can lead to the reading o...

SUSE CVE-2026-72141

In the Linux kernel, the following vulnerability has been resolved: i2c: imx: fix locked bus on SMBus block-read of 0 IRQ SMBus 3.1 6.5.7 allows a Block Read byte count of 0, but the interrupt-driven block-read state machine rejects it as -EPROTO. Worse, it returns without a NACK+STOP: the next...