imPC@ndo IT

Tracker / CVE-2021-41073

CVE-2021-41073

High 7.8

loop_rw_iter in fs/io_uring.c in the Linux kernel 5.10 through 5.14.6 allows local users to gain privileges by using IORING_OP_PROVIDE_BUFFERS to trigger a free of a kernel buffer, as demonstrated by using /proc/<pid>/maps for exploitation.

Affected products and versions

debian debian_linux
fedoraproject fedora
linux linux_kernel · 5.10 → 5.10.68
linux linux_kernel · 5.11 → 5.14.7
netapp cloud_backup
netapp h300e_firmware
netapp h300s_firmware
netapp h410c_firmware
netapp h410s_firmware
netapp h500e_firmware
netapp h500s_firmware
netapp h700e_firmware
netapp h700s_firmware
netapp solidfire_baseboard_management_controller

Analysis

This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.

References