UBUNTU-CVE-2025-39684

In the Linux kernel, the following vulnerability has been resolved: comedi: Fix use of uninitialized memory in doinsnioctl and doinsnlistioctl syzbot reports a KMSAN kernel-infoleak in doinsnioctl. A kernel buffer is allocated to hold insn-n samples each of which is an unsigned int. For some...

UBUNTU-CVE-2025-39686

In the Linux kernel, the following vulnerability has been resolved: comedi: Make insnrwemulatebits do insn-n samples The insnrwemulatebits function is used as a default handler for INSNREAD instructions for subdevices that have a handler for INSNBITS but not for INSNREAD. Similarly, it is used as...

UBUNTU-CVE-2025-39685

In the Linux kernel, the following vulnerability has been resolved: comedi: pcl726: Prevent invalid irq number The reproducer passed in an irq number0x80008000 that was too large, which triggered the oob. Added an interrupt number check to prevent users from passing in an irq number that was too...

CVE-2025-39686 comedi: Make insn_rw_emulate_bits() do insn->n samples

In the Linux kernel, the following vulnerability has been resolved: comedi: Make insnrwemulatebits do insn-n samples The insnrwemulatebits function is used as a default handler for INSNREAD instructions for subdevices that have a handler for INSNBITS but not for INSNREAD. Similarly, it is used as...

CVE-2025-39686 comedi: Make insn_rw_emulate_bits() do insn->n samples

In the Linux kernel, the following vulnerability has been resolved: comedi: Make insnrwemulatebits do insn-n samples The insnrwemulatebits function is used as a default handler for INSNREAD instructions for subdevices that have a handler for INSNBITS but not for INSNREAD. Similarly, it is used as...

CVE-2025-39686

CVE-2025-39686: In the Linux kernel comedi subsystem, insn_rw_emulate_bits() incorrectly emulated INSN_READ/WRITE for subdevices that support INSN_BITS, handling only a single sample instead of insn->n samples. The fix is to make the function process all n samples or return an error to conform...

CVE-2025-39685

Summary (CVE-2025-39685) : In the Linux kernel, the comedi pcl726 driver could trigger an out-of-bounds when an excessively large IRQ number was passed (example 0x80008000). The fix adds an interrupt number check to prevent passing an IRQ number that is too large. It notes that if it->options[...

CVE-2025-39685 comedi: pcl726: Prevent invalid irq number

In the Linux kernel, the following vulnerability has been resolved: comedi: pcl726: Prevent invalid irq number The reproducer passed in an irq number0x80008000 that was too large, which triggered the oob. Added an interrupt number check to prevent users from passing in an irq number that was too...

CVE-2025-39685

In the Linux kernel, the following vulnerability has been resolved: comedi: pcl726: Prevent invalid irq number The reproducer passed in an irq number0x80008000 that was too large, which triggered the oob. Added an interrupt number check to prevent users from passing in an irq number that was too...

CVE-2025-39685 comedi: pcl726: Prevent invalid irq number

In the Linux kernel, the following vulnerability has been resolved: comedi: pcl726: Prevent invalid irq number The reproducer passed in an irq number0x80008000 that was too large, which triggered the oob. Added an interrupt number check to prevent users from passing in an irq number that was too...

CVE-2025-39684 comedi: Fix use of uninitialized memory in do_insn_ioctl() and do_insnlist_ioctl()

In the Linux kernel, the following vulnerability has been resolved: comedi: Fix use of uninitialized memory in doinsnioctl and doinsnlistioctl syzbot reports a KMSAN kernel-infoleak in doinsnioctl. A kernel buffer is allocated to hold insn-n samples each of which is an unsigned int. For some...

CVE-2025-39684 comedi: Fix use of uninitialized memory in do_insn_ioctl() and do_insnlist_ioctl()

In the Linux kernel, the following vulnerability has been resolved: comedi: Fix use of uninitialized memory in doinsnioctl and doinsnlistioctl syzbot reports a KMSAN kernel-infoleak in doinsnioctl. A kernel buffer is allocated to hold insn-n samples each of which is an unsigned int. For some...

CVE-2025-39684

In the Linux kernel, the following vulnerability has been resolved: comedi: Fix use of uninitialized memory in doinsnioctl and doinsnlistioctl syzbot reports a KMSAN kernel-infoleak in doinsnioctl. A kernel buffer is allocated to hold insn-n samples each of which is an unsigned int. For some...

CVE-2025-39684

CVE-2025-39684 affects the Linux kernel Comedi subsystem. The vulnerability arises in do_insn_ioctl() and do_insnlist_ioctl() where a buffer of insn->n samples (unsigned int per sample) could copy back more data to userspace than was initialized, leaking kernel memory. Root cause: not all inst...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in Linux kernel, which stems from the use of uninitialized memory by the comedi module in doinsnioctl and doinsnlistioctl...

The vulnerability of the do_insn_ioctl() function in the Comedi component of the Linux operating system allows a hacker to trigger a service failure.

The vulnerability of the doinsnioctl function in the Comedi component of the Linux operating system is related to incorrect resource initialization. Exploiting this vulnerability can allow an attacker to cause a service failure...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from the comedi/pcl726 module not verifying interrupt number validity...

CVE-2025-39686: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: comedi: Make insnrwemulatebits do insn-n samples The insnrwemulatebits function is used as a default handler for INSNREAD instructions for subdevices that have a handler for INSNBITS but not for INSNREAD. Similarly, it is used as...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in Linux kernel, which stems from the insn-n sample not being handled by the insnrwemulatebits function of the comedi module...

CVE-2025-39685: Out-of-bounds Read

In the Linux kernel, the following vulnerability has been resolved: comedi: pcl726: Prevent invalid irq number The reproducer passed in an irq number0x80008000 that was too large, which triggered the oob. Added an interrupt number check to prevent users from passing in an irq number that was too...