Linux Distros Unpatched Vulnerability : CVE-2025-39793

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - iouring/memmap: cast nrpages to sizet before shifting If the allocated size exceeds UINTMAX, then it's necessary to cast the mr-nrpages value to sizet to preven...

DEBIAN-CVE-2025-39793

In the Linux kernel, the following vulnerability has been resolved: iouring/memmap: cast nrpages to sizet before shifting If the allocated size exceeds UINTMAX, then it's necessary to cast the mr-nrpages value to sizet to prevent it from overflowing. In practice this isn't much of a concern as th...

CVE-2025-39793

In the Linux kernel, the following vulnerability has been resolved: iouring/memmap: cast nrpages to sizet before shifting If the allocated size exceeds UINTMAX, then it's necessary to cast the mr-nrpages value to sizet to prevent it from overflowing. In practice this isn't much of a concern as th...

CVE-2025-39793 io_uring/memmap: cast nr_pages to size_t before shifting

In the Linux kernel, the following vulnerability has been resolved: iouring/memmap: cast nrpages to sizet before shifting If the allocated size exceeds UINTMAX, then it's necessary to cast the mr-nrpages value to sizet to prevent it from overflowing. In practice this isn't much of a concern as th...

CVE-2025-39793 io_uring/memmap: cast nr_pages to size_t before shifting

In the Linux kernel, the following vulnerability has been resolved: iouring/memmap: cast nrpages to sizet before shifting If the allocated size exceeds UINTMAX, then it's necessary to cast the mr-nrpages value to sizet to prevent it from overflowing. In practice this isn't much of a concern as th...

CVE-2025-39793

Summary (CVE-2025-39793): In the Linux kernel io_uring/memmap path, the vulnerability arises when allocating memory where nr_pages may overflow during a shift if the size exceeds UINT_MAX. The root cause is failure to cast mr->nr_pages to size_t before shifting, which could allow overflow and ...

PT-2025-37327

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: The Linux kernel contains an issue in the io uring/memmap component where the nr pages value is not cast to size t before shifting, potentially leading to an overflow if the allocated...