CVE-2024-35831

In the Linux kernel, the following vulnerability has been resolved: iouring: Fix release of pinned pages when iouaddrmap fails Looking at the error path of iouaddrmap, if we fail after pinning the pages for any reasons, ret will be set to -EINVAL and the error handler won't properly release the...

CVE-2024-35831 io_uring: Fix release of pinned pages when __io_uaddr_map fails

In the Linux kernel, the following vulnerability has been resolved: iouring: Fix release of pinned pages when iouaddrmap fails Looking at the error path of iouaddrmap, if we fail after pinning the pages for any reasons, ret will be set to -EINVAL and the error handler won't properly release the...

CVE-2024-35831 io_uring: Fix release of pinned pages when __io_uaddr_map fails

In the Linux kernel, the following vulnerability has been resolved: iouring: Fix release of pinned pages when iouaddrmap fails Looking at the error path of iouaddrmap, if we fail after pinning the pages for any reasons, ret will be set to -EINVAL and the error handler won't properly release the...

CVE-2024-35831

CVE-2024-35831 (Linux kernel io_uring issue) : The vulnerability arises in the error path of __io_uaddr_map where, after pinning pages, the error handler may not release the pinned pages if the function fails. This can occur under memory fragmentation and results in improper cleanup. The base CVS...

io_uring __io_uaddr_map() Dangerous Multi-Page Handling

iouring: iouaddrmap handles multi-page region dangerously iouaddrmap wants to import a region from userspace, and then address the imported region through the linear mapping area. This requires that the imported region is physically contiguous. A comment in iouaddrmap explains that the imported...