Linux Distros Unpatched Vulnerability : CVE-2026-81009

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - iouring/query: cap user size passed to copystructtouser iohandlequeryentry clamps hdr.size for the inbound copyfromuser but keeps the original user value as...

DEBIAN-CVE-2026-81009

In the Linux kernel, the following vulnerability has been resolved: iouring/query: cap user size passed to copystructtouser iohandlequeryentry clamps hdr.size for the inbound copyfromuser but keeps the original user value as usize. copystructtouser uses that usize and, when it is larger than the...

CVE-2026-81009

In the Linux kernel, the following vulnerability has been resolved: iouring/query: cap user size passed to copystructtouser iohandlequeryentry clamps hdr.size for the inbound copyfromuser but keeps the original user value as usize. copystructtouser uses that usize and, when it is larger than the...

UBUNTU-CVE-2026-81009

In the Linux kernel, the following vulnerability has been resolved: iouring/query: cap user size passed to copystructtouser iohandlequeryentry clamps hdr.size for the inbound copyfromuser but keeps the original user value as usize. copystructtouser uses that usize and, when it is larger than the...

CVE-2026-81009

In the Linux kernel, the following vulnerability has been resolved: iouring/query: cap user size passed to copystructtouser iohandlequeryentry clamps hdr.size for the inbound copyfromuser but keeps the original user value as usize. copystructtouser uses that usize and, when it is larger than the...

CVE-2026-81009

CVE-2026-81009 affects the Linux kernel in the io_uring/query subsystem. The function io_handle_query_entry() clamps hdr.size for the inbound copy_from_user() but retains the original user-supplied value as usize. When passed to copy_struct_to_user(), an oversized usize triggers clear_user() on t...

EUVD-2026-76332

In the Linux kernel, the following vulnerability has been resolved: iouring/query: cap user size passed to copystructtouser iohandlequeryentry clamps hdr.size for the inbound copyfromuser but keeps the original user value as usize. copystructtouser uses that usize and, when it is larger than the...

CVE-2026-81009 io_uring/query: cap user size passed to copy_struct_to_user

In the Linux kernel, the following vulnerability has been resolved: iouring/query: cap user size passed to copystructtouser iohandlequeryentry clamps hdr.size for the inbound copyfromuser but keeps the original user value as usize. copystructtouser uses that usize and, when it is larger than the...

CVE-2026-81009

In the Linux kernel, the following vulnerability has been resolved: iouring/query: cap user size passed to copystructtouser iohandlequeryentry clamps hdr.size for the inbound copyfromuser but keeps the original user value as usize. copystructtouser uses that usize and, when it is larger than the...

PT-2026-90139

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 7.2.6-1.1 Description An issue exists in the io handle query entry function where hdr.size is clamped for the inbound copy from user operation, but the original user value is retained as usize. The copy struct to...

CVE-2026-81009: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: iouring/query: cap user size passed to copystructtouser iohandlequeryentry clamps hdr.size for the inbound copyfromuser but keeps the original user value as usize. copystructtouser uses that usize and, when it is larger than the...