Linux kernel 安全漏洞

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from the exynos-drm driver’s viidiconnectionioctl function, which directly derefreshes user-space...

Astra Linux – Vulnerability in Linux

A out-of-bounds memory write flaw was discovered in the Linux kernel’s joystick devices subsystem in versions prior to 5.9-rc1. This flaw allows a local user to crash the system or potentially escalate their privileges on the system. The greatest threat posed by this vulnerability is related to...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15, Linux-6.1

A issue was discovered in the Linux kernel before version 6.6.8. The roseioctl function in net/rose/afrose.c has a use-after-free issue due to a race condition involving roseaccept...

Astra Linux – Vulnerabilities in Linux, Linux-5.15, Linux-5.10

In the Linux kernel, the following vulnerability has been resolved: USB: usbtmc: Fixed the direction of 0-length ioctl control messages The syzbot fuzzer identified a issue with the usbtmc driver: When a user sends an ioctl with a 0-length control transfer, the driver does not check whether the...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: nbd: Fixed incomplete validation of ioctl arguments. We identified an alarm caused by incomplete validation of ioctl arguments without proper verification. The UBSAN warning appears as follows: UBSAN: Undefined behavior in...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: Wifi: ath9k: Avoid reading uninitialized memory in ath9khtcrxmsg. syzbot reports that the uninitialized value is accessed at ath9khtcrxmsg. For ioctlUSBRAWIOCTLEPWRITE, the function ath9khifusbrxstream may call with pktlen = 0, b...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: nilfs2: fixed a kernel-infoleak in nilfsioctlwrapcopy The ioctl helper function nilfsioctlwrapcopy, which exchanges a metadata array to/from user space, may copy uninitialized buffer regions to user space memory for read-only ioc...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: A upper bound check has been added to user inputs in the signal ioctl function. Large input values in amdgpuuserqsignalioctl can lead to a Out-of-Memory OOM condition, and this vulnerability could be exploited...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: fpga: Prevent integer overflow in dflfeatureioctlsetirq The multiplication hdr.count sizeofs32 can cause integer overflow on 32-bit systems, leading to memory corruption. Use arraysize to fix this issue...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: vt: Clear the selection before changing the font. When changing the console font using ioctlKDFONTOP, the new font size may be larger than the previous one. As a result, a previously selected item may now be outside the new scree...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: video: fbdev: i740fb: Check the argument of i740calcvclk Since the user can control the arguments of the ioctl function from the user space, special arguments may lead to a divide-by-zero bug. If the user provides an improper...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: crypto: ccp – Use kzalloc for sev ioctl interfaces to prevent kernel memory leaks. For some sev ioctl interfaces, input data may be less than or equal to SEVFWBLOBMAXSIZE, but larger than the data returned by the PSP firmware. In...

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

In the Linux kernel, the following vulnerability has been resolved: vfio/pci: Locking external INTx masking operations Masking operations by changing the config space for DisINTx may cause races with INTx configuration changes made via ioctl. Create wrappers that add locking mechanisms for paths...

Astra Linux – Vulnerability in Linux 5.10, Linux

When setting a font using malicious data via the ioctl command PIOFONT, the kernel will write memory beyond its bounds...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: media: v4l2-core: explicitly clear ioctl input data. As seen from a recent syzbot bug report, mistakes in the compat ioctl implementation can lead to uninitialized kernel stack data being used as input for driver ioctl handlers...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: drm/xe: Fixed the double-free bug in vmbindioctl If the argument check during an array bind fails, the bindops is freed twice. This issue is fixed by setting bindops to NULL after freeing it...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: ethtool: ioctl: fixed a potential NULL dereference in ethtoolsetcoalesce. ethtoolsetcoalesce now uses both .getcoalesce and .setcoalesce callbacks. However, the check for their availability is buggy. Therefore, changing the...

Astra Linux – Vulnerability in Linux, Linux 5.10

A kernel information leak flaw was identified in the scsiioctl function in drivers/scsi/scsiioctl.c within the Linux kernel. This flaw allows a local attacker with special user privileges CAPSYSADMIN or CAPSYSRAWIO to cause confidentiality issues...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerabilities have been resolved: ubi: Fixed a race condition between ctrlcdevioctl and ubicdevioctl. Hulk Robot reported a KASAN report regarding a use-after-free issue: ========================================== BUG: KASAN: use-after-free in...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: drm/xe: A memory leak has been fixed in xevmmadviseioctl. When the validation of checkboargsaresane fails, the code jumps to the new freevmas cleanup label to properly release the allocated resources. This ensures proper cleanup ...