CVE-2021-3491

The iouring subsystem in the Linux kernel allowed the MAXRWCOUNT limit to be bypassed in the PROVIDEBUFFERS operation, which led to negative values being usedin memrw when reading /proc//mem. This could be used to create a heap overflow leading to arbitrary code execution in the kernel. It was...

Heap overflow

The iouring subsystem in the Linux kernel allowed the MAXRWCOUNT limit to be bypassed in the PROVIDEBUFFERS operation, which led to negative values being usedin memrw when reading /proc//mem. This could be used to create a heap overflow leading to arbitrary code execution in the kernel. It was...

CVE-2021-3491

The iouring subsystem in the Linux kernel allowed the MAXRWCOUNT limit to be bypassed in the PROVIDEBUFFERS operation, which led to negative values being usedin memrw when reading /proc//mem. This could be used to create a heap overflow leading to arbitrary code execution in the kernel. It was...

CVE-2021-3491

The iouring subsystem in the Linux kernel allowed the MAXRWCOUNT limit to be bypassed in the PROVIDEBUFFERS operation, which led to negative values being usedin memrw when reading /proc//mem. This could be used to create a heap overflow leading to arbitrary code execution in the kernel. It was...

CVE-2021-3491: Incorrect Calculation of Buffer Size

The iouring subsystem in the Linux kernel allowed the MAXRWCOUNT limit to be bypassed in the PROVIDEBUFFERS operation, which led to negative values being usedin memrw when reading /proc/ /mem. This could be used to create a heap overflow leading to arbitrary code execution in the kernel. It was...

CVE-2021-3491

A flaw was found in the Linux kernel. The iouring PROVIDEBUFFERS operation allowed the MAXRWCOUNT limit to be bypassed, which led to negative values being used in memrw when reading /proc//mem. The highest threat from this vulnerability is to data confidentiality and integrity as well as system...

PT-2021-4237

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 5.13-rc1 Linux kernel versions 5.7-rc1 through 5.12.3 Linux kernel versions 5.11 through 5.11.20 Linux kernel versions 5.10 through 5.10.36 Description The issue is related to a buffer overflow in the io uring...