CVE-2021-47383

Updated:

Description:

In the Linux kernel, the following vulnerability has been resolved: tty: Fix out-of-bound vmalloc access in imageblit This issue happens when a userspace program does an ioctl FBIOPUT_VSCREENINFO passing the fb_var_screeninfo struct containing only the fields xres, yres, and bits_per_pixel with values. If this struct is the same as the previous ioctl, the vc_resize() detects it and doesn't call the resize_screen(), leaving the fb_var_screeninfo incomplete. And this leads to the updatescrollmode() calculates a wrong value to fbcon_display->vrows, which makes the real_y() return a wrong value of y, and that value, eventually, causes the imageblit to access an out-of-bound address value. To solve this issue I made the resize_screen() be called even if the screen does not need any resizing, so it will "fix and fill" the fb_var_screeninfo independently.

CVSS3: 7.1


Vendor State

OS Vendor version Errata
Ubuntu 18.04 4.15.0-163.171 USN-5164-1
Amazon Linux 2 4.14.252-195.481.amzn2 ALAS2-2021-1719
RHEL 8 4.18.0-553.22.1.el8_10 RHSA-2024:7000
Debian 10 4.19.232-1 DSA-5096-1
Oracle Linux 8 4.18.0-553.22.1.el8_10 ELSA-2024-7000
Ubuntu 20.04 5.4.0-91.102 USN-5163-1
Ubuntu 18.04 AWS Focal 5.4.0-1060.63~18.04.1 USN-5163-1
AlmaLinux 8 4.18.0-553.22.1.el8_10 ALSA-2024:7000
Rocky Linux 8 4.18.0-553.22.1.el8_10 RLSA-2024:7000
RHEL 9 5.14.0-427.42.1.el9_4 RHSA-2024:8617
Oracle Linux 9 5.14.0-427.42.1.el9_4 ELSA-2024-8617
Rocky Linux 9 5.14.0-427.42.1.el9_4 RLSA-2024:8617
AlmaLinux 9 5.14.0-427.42.1.el9_4 ALSA-2024:8617
Amazon Linux 2 5.4 5.4.156-83.273.amzn2 ALAS2KERNEL-5.4-2025-099
Amazon Linux 2 5.10 5.10.75-79.358.amzn2 ALAS2KERNEL-5.10-2022-007
CentOS 7 ELS 3.10.0-1160.119.1.el7.tuxcare.els3 CLSA-2024:1724693366

KernelCare State

OS Original kernel version State
Ubuntu 18.04
Will Not Fix
Amazon Linux 2
Planned
RHEL 8
4.18.0-147.0.2.el8_1 show all hide all
4.18.0-147.0.3.el8_1 4.18.0-147.3.1.el8_1 4.18.0-147.5.1.el8_1 4.18.0-147.8.1.el8_1 4.18.0-147.el8 4.18.0-193.1.2.el8_2 4.18.0-193.13.2.el8_2 4.18.0-193.14.3.el8_2 4.18.0-193.19.1.el8_2 4.18.0-193.28.1.el8_2 4.18.0-193.6.3.el8_2 4.18.0-193.el8 4.18.0-240.1.1.el8_3 4.18.0-240.10.1.el8_3 4.18.0-240.15.1.el8_3 4.18.0-240.22.1.el8_3 4.18.0-240.8.1.el8_3 4.18.0-240.el8 4.18.0-305.10.2.el8_4 4.18.0-305.12.1.el8_4 4.18.0-305.17.1.el8_4 4.18.0-305.19.1.el8_4 4.18.0-305.25.1.el8_4 4.18.0-305.3.1.el8_4 4.18.0-305.7.1.el8_4 4.18.0-305.el8 4.18.0-348.12.2.el8_5 4.18.0-348.2.1.el8_5 4.18.0-348.20.1.el8_5 4.18.0-348.23.1.el8_5 4.18.0-348.7.1.el8_5 4.18.0-348.el8 4.18.0-372.13.1.el8_6 4.18.0-372.16.1.el8_6 4.18.0-372.19.1.el8_6 4.18.0-372.26.1.el8_6 4.18.0-372.32.1.el8_6 4.18.0-372.9.1.el8 4.18.0-425.10.1.el8_7 4.18.0-425.13.1.el8_7 4.18.0-425.19.2.el8_7 4.18.0-425.3.1.el8 4.18.0-477.10.1.el8_8 4.18.0-477.13.1.el8_8 4.18.0-477.15.1.el8_8 4.18.0-477.21.1.el8_8 4.18.0-477.27.1.el8_8 4.18.0-513.11.1.el8_9 4.18.0-513.18.1.el8_9 4.18.0-513.24.1.el8_9 4.18.0-513.5.1.el8_9 4.18.0-513.9.1.el8_9 4.18.0-553.16.1.el8_10 4.18.0-553.5.1.el8_10 4.18.0-553.8.1.el8_10 4.18.0-553.el8_10 4.18.0-80.1.2.el8_0 4.18.0-80.11.1.el8_0 4.18.0-80.11.2.el8_0 4.18.0-80.4.2.el8_0 4.18.0-80.7.1.el8_0 4.18.0-80.7.2.el8_0 4.18.0-80.el8
Released
Debian 10
Planned
Oracle Linux 8
4.18.0-147.0.2.el8_1 show all hide all
4.18.0-147.0.3.el8_1 4.18.0-147.3.1.el8_1 4.18.0-147.5.1.el8_1 4.18.0-147.8.1.el8_1 4.18.0-147.el8 4.18.0-193.1.2.el8_2 4.18.0-193.13.2.el8_2 4.18.0-193.14.3.el8_2 4.18.0-193.19.1.el8_2 4.18.0-193.28.1.el8_2 4.18.0-193.6.3.el8_2 4.18.0-193.el8 4.18.0-240.1.1.el8_3 4.18.0-240.10.1.el8_3 4.18.0-240.15.1.el8_3 4.18.0-240.22.1.el8_3 4.18.0-240.8.1.el8_3 4.18.0-240.el8 4.18.0-305.10.2.el8_4 4.18.0-305.12.1.el8_4 4.18.0-305.17.1.el8_4 4.18.0-305.19.1.el8_4 4.18.0-305.25.1.el8_4 4.18.0-305.3.1.el8_4 4.18.0-305.7.1.el8_4 4.18.0-305.el8 4.18.0-348.12.2.el8_5 4.18.0-348.2.1.el8_5 4.18.0-348.20.1.el8_5 4.18.0-348.23.1.el8_5 4.18.0-348.7.1.el8_5 4.18.0-348.el8 4.18.0-372.13.1.0.1.el8_6 4.18.0-372.16.1.0.1.el8_6 4.18.0-372.19.1.0.1.el8_6 4.18.0-372.26.1.0.1.el8_6 4.18.0-372.32.1.0.1.el8_6 4.18.0-372.9.1.el8 4.18.0-425.10.1.el8_7 4.18.0-425.13.1.el8_7 4.18.0-425.19.2.el8_7 4.18.0-425.3.1.el8 4.18.0-477.10.1.el8_8 4.18.0-477.13.1.el8_8 4.18.0-477.15.1.el8_8 4.18.0-477.21.1.el8_8 4.18.0-477.27.0.1.el8_8 4.18.0-477.27.1.el8_8 4.18.0-513.11.0.1.el8_9 4.18.0-513.18.0.1.el8_9 4.18.0-513.18.0.2.el8_9 4.18.0-513.18.1.0.1.el8_9 4.18.0-513.18.1.el8_9 4.18.0-513.24.1.el8_9 4.18.0-513.5.1.el8_9 4.18.0-513.9.1.el8_9 4.18.0-553.16.1.el8_10 4.18.0-553.5.1.el8_10 4.18.0-553.8.1.el8_10 4.18.0-553.el8_10 4.18.0-80.1.2.el8_0 4.18.0-80.11.1.el8_0 4.18.0-80.11.2.el8_0 4.18.0-80.4.2.el8_0 4.18.0-80.7.1.el8_0 4.18.0-80.7.2.el8_0 4.18.0-80.el8
Released
CloudLinux OS 8
4.18.0-147.0.3.lve.el8 show all hide all
4.18.0-147.3.1.el8.lve.1 4.18.0-147.8.1.el8.lve.1 4.18.0-147.8.1.el8.lve 4.18.0-193.28.1.lve1.el8 4.18.0-305.10.2.2.lve.el8 4.18.0-553.lve.el8 4.18.0-305.10.2.lve.el8 4.18.0-305.12.1.lve.el8 4.18.0-305.17.1.lve.el8 4.18.0-305.19.1.lve.el8 4.18.0-305.7.1.lve.el8 4.18.0-305.lve.el8 4.18.0-348.12.2.lve.el8 4.18.0-348.20.1.lve.1.el8 4.18.0-348.20.1.lve.el8 4.18.0-348.23.1.lve.el8 4.18.0-348.7.1.lve.el8 4.18.0-348.lve.el8 4.18.0-372.13.1.lve.el8 4.18.0-372.16.1.lve.el8 4.18.0-372.19.1.lve.el8 4.18.0-372.26.1.lve.1.el8 4.18.0-372.32.1.lve.el8 4.18.0-372.9.1.1.lve.el8 4.18.0-372.9.1.lve.el8 4.18.0-425.10.1.lve.el8 4.18.0-425.13.1.lve.el8 4.18.0-425.19.2.lve.el8 4.18.0-425.3.1.lve.1.el8 4.18.0-425.3.1.lve.2.el8 4.18.0-425.3.1.lve.3.el8 4.18.0-425.3.1.lve.el8 4.18.0-477.10.1.lve.el8 4.18.0-477.13.1.lve.1.el8 4.18.0-477.13.1.lve.el8 4.18.0-477.15.1.lve.2.el8 4.18.0-477.21.1.lve.1.el8 4.18.0-477.21.1.lve.el8 4.18.0-477.27.1.lve.el8 4.18.0-477.27.2.lve.el8 4.18.0-513.11.1.lve.el8 4.18.0-513.18.1.lve.1.el8 4.18.0-513.18.1.lve.2.el8 4.18.0-513.18.1.lve.el8 4.18.0-513.24.1.lve.1.el8 4.18.0-513.24.1.lve.2.el8 4.18.0-513.24.1.lve.el8 4.18.0-513.5.1.lve.el8 4.18.0-513.9.1.lve.el8 4.18.0-544.lve.el8 4.18.0-553.16.1.lve.1.el8 4.18.0-553.16.1.lve.el8 4.18.0-553.5.1.lve.1.el8 4.18.0-553.5.1.lve.el8 4.18.0-553.8.1.lve.el8
Released
CloudLinux OS 7h
4.18.0-147.0.3.el7h.lve show all hide all
4.18.0-147.0.3.el7h 4.18.0-147.3.1.el7h.lve.1 4.18.0-147.8.1.el7h.lve.1 4.18.0-147.8.1.el7h.lve 4.18.0-553.16.1.lve.el7h 4.18.0-193.28.1.lve1.el7h 4.18.0-305.10.2.2.lve.el7h 4.18.0-305.10.2.lve.el7h 4.18.0-305.12.1.lve.el7h 4.18.0-305.17.1.lve.el7h 4.18.0-305.19.1.lve.el7h 4.18.0-305.7.1.lve.el7h 4.18.0-305.lve.el7h 4.18.0-348.12.2.lve.1.el7h 4.18.0-348.12.2.lve.2.el7h 4.18.0-348.12.2.lve.el7h 4.18.0-348.20.1.lve.1.el7h 4.18.0-348.20.1.lve.el7h 4.18.0-348.23.1.lve.el7h 4.18.0-348.7.1.lve.el7h 4.18.0-348.lve.el7h 4.18.0-372.13.1.lve.el7h 4.18.0-372.16.1.lve.el7h 4.18.0-372.19.1.lve.el7h 4.18.0-372.26.1.lve.1.el7h 4.18.0-372.32.1.lve.el7h 4.18.0-372.9.1.lve.el7h 4.18.0-425.10.1.lve.el7h 4.18.0-425.13.1.lve.el7h 4.18.0-425.19.2.lve.el7h 4.18.0-425.3.1.lve.1.el7h 4.18.0-425.3.1.lve.2.el7h 4.18.0-425.3.1.lve.3.el7h 4.18.0-425.3.1.lve.el7h 4.18.0-477.10.1.lve.1.el7h 4.18.0-477.13.1.lve.1.el7h 4.18.0-477.13.1.lve.el7h 4.18.0-477.15.1.lve.1.el7h 4.18.0-477.15.1.lve.2.el7h 4.18.0-477.21.1.lve.1.el7h 4.18.0-477.21.1.lve.el7h 4.18.0-477.27.1.lve.el7h 4.18.0-477.27.2.lve.el7h 4.18.0-513.11.1.lve.1.el7h 4.18.0-513.11.1.lve.el7h 4.18.0-513.18.1.lve.1.el7h 4.18.0-513.18.1.lve.2.el7h 4.18.0-513.18.1.lve.el7h 4.18.0-513.24.1.lve.1.el7h 4.18.0-513.24.1.lve.2.el7h 4.18.0-513.24.1.lve.el7h 4.18.0-513.5.1.lve.el7h 4.18.0-513.9.1.lve.el7h 4.18.0-553.16.1.lve.1.el7h 4.18.0-553.5.1.lve.1.el7h 4.18.0-553.5.1.lve.el7h 4.18.0-553.8.1.lve.el7h 4.18.0-553.lve.el7h 4.18.0-80.7.2.el7h
Released
Ubuntu 20.04
Planned
Ubuntu 18.04 AWS Focal
Planned
AlmaLinux 8
4.18.0-240.15.1.el8_3 show all hide all
4.18.0-240.22.1.el8_3 4.18.0-240.el8 4.18.0-305.10.2.el8_4 4.18.0-305.12.1.el8_4 4.18.0-305.17.1.el8_4 4.18.0-305.19.1.el8_4 4.18.0-305.25.1.el8_4 4.18.0-305.3.1.el8_4 4.18.0-305.7.1.el8_4 4.18.0-305.el8 4.18.0-348.12.2.el8_5 4.18.0-348.2.1.el8_5 4.18.0-348.20.1.el8_5 4.18.0-348.23.1.el8_5 4.18.0-348.7.1.el8_5 4.18.0-348.el8 4.18.0-372.13.1.el8_6 4.18.0-372.16.1.el8_6 4.18.0-372.19.1.el8_6 4.18.0-372.26.1.el8_6 4.18.0-372.32.1.el8_6 4.18.0-372.9.1.el8 4.18.0-425.10.1.el8_7 4.18.0-425.13.1.el8_7 4.18.0-425.19.2.el8_7 4.18.0-425.3.1.el8 4.18.0-477.10.1.el8_8 4.18.0-477.13.1.el8_8 4.18.0-477.15.1.el8_8 4.18.0-477.21.1.el8_8 4.18.0-477.27.1.el8_8 4.18.0-477.27.2.el8_8 4.18.0-513.11.1.el8_9 4.18.0-513.18.1.el8_9 4.18.0-513.18.2.el8_9 4.18.0-513.24.1.el8_9 4.18.0-513.5.1.el8_9 4.18.0-513.9.1.el8_9 4.18.0-553.16.1.el8_10 4.18.0-553.5.1.el8_10 4.18.0-553.8.1.el8_10 4.18.0-553.el8_10
Released
Rocky Linux 8
4.18.0-372.16.1.el8_6 show all hide all
4.18.0-372.19.1.el8_6 4.18.0-372.26.1.el8_6 4.18.0-372.32.1.el8_6 4.18.0-372.9.1.el8 4.18.0-425.10.1.el8_7 4.18.0-477.15.1.el8_8 4.18.0-477.21.1.el8_8 4.18.0-477.27.1.el8_8 4.18.0-513.11.1.el8_9.0.1 4.18.0-513.11.1.el8_9 4.18.0-513.18.1.el8_9 4.18.0-513.24.1.el8_9 4.18.0-513.5.1.el8_9 4.18.0-513.9.1.el8_9 4.18.0-553.16.1.el8_10 4.18.0-553.5.1.el8_10 4.18.0-553.8.1.el8_10 4.18.0-553.el8_10 4.18.0-305.10.2.el8_4 4.18.0-305.12.1.el8_4 4.18.0-305.17.1.el8_4 4.18.0-305.19.1.el8_4 4.18.0-305.25.1.el8_4 4.18.0-305.3.1.el8_4 4.18.0-305.7.1.el8_4 4.18.0-348.12.2.el8_5 4.18.0-348.2.1.el8_5 4.18.0-348.20.1.el8_5 4.18.0-348.23.1.el8_5 4.18.0-348.7.1.el8_5 4.18.0-372.13.1.el8_6 4.18.0-372.16.1.el8_6.0.1 4.18.0-425.13.1.el8_7 4.18.0-425.19.2.el8_7 4.18.0-425.3.1.el8 4.18.0-477.10.1.el8_8 4.18.0-477.13.1.el8_8
Released
RHEL 9
5.14.0-427.33.1.el9_4 show all hide all
5.14.0-427.35.1.el9_4 5.14.0-427.37.1.el9_4 5.14.0-427.40.1.el9_4 5.14.0-70.13.1.el9_0 5.14.0-70.17.1.el9_0 5.14.0-70.22.1.el9_0 5.14.0-70.26.1.el9_0 5.14.0-70.30.1.el9_0 5.14.0-70.5.1.el9_0 5.14.0-162.12.1.el9_1 5.14.0-162.18.1.el9_1 5.14.0-162.22.2.el9_1 5.14.0-162.23.1.el9_1 5.14.0-162.6.1.el9_1 5.14.0-284.11.1.el9_2 5.14.0-284.18.1.el9_2 5.14.0-284.25.1.el9_2 5.14.0-284.30.1.el9_2 5.14.0-362.13.1.el9_3 5.14.0-362.18.1.el9_3 5.14.0-362.24.1.el9_3 5.14.0-362.8.1.el9_3 5.14.0-427.13.1.el9_4 5.14.0-427.16.1.el9_4 5.14.0-427.18.1.el9_4 5.14.0-427.20.1.el9_4 5.14.0-427.22.1.el9_4 5.14.0-427.24.1.el9_4 5.14.0-427.26.1.el9_4 5.14.0-427.28.1.el9_4 5.14.0-427.31.1.el9_4
Released
Oracle Linux 9
5.14.0-427.37.1.el9_4 show all hide all
5.14.0-427.40.1.el9_4 5.14.0-70.13.1.0.3.el9_0 5.14.0-70.17.1.0.1.el9_0 5.14.0-70.22.1.0.1.el9_0 5.14.0-70.26.1.0.1.el9_0 5.14.0-70.30.1.0.1.el9_0 5.14.0-162.12.1.el9_1 5.14.0-162.18.1.el9_1 5.14.0-162.22.2.el9_1 5.14.0-162.23.1.el9_1 5.14.0-162.6.1.el9_1 5.14.0-284.11.1.el9_2 5.14.0-284.18.1.el9_2 5.14.0-284.25.1.0.1.el9_2 5.14.0-284.25.1.el9_2 5.14.0-284.30.0.1.el9_2 5.14.0-284.30.1.el9_2 5.14.0-362.13.0.1.el9_3 5.14.0-362.13.1.el9_3 5.14.0-362.18.0.1.el9_3 5.14.0-362.18.0.2.el9_3 5.14.0-362.18.1.el9_3 5.14.0-362.24.1.0.1.el9_3 5.14.0-362.24.1.0.2.el9_3 5.14.0-362.24.1.el9_3 5.14.0-362.8.1.el9_3 5.14.0-427.13.1.el9_4 5.14.0-427.16.1.el9_4 5.14.0-427.18.1.el9_4 5.14.0-427.20.1.el9_4 5.14.0-427.22.1.el9_4 5.14.0-427.24.1.el9_4 5.14.0-427.26.1.el9_4 5.14.0-427.28.1.el9_4 5.14.0-427.31.1.el9_4 5.14.0-427.33.1.el9_4 5.14.0-427.35.1.el9_4
Released
Rocky Linux 9
5.14.0-162.12.1.el9_1.0.1 show all hide all
5.14.0-162.12.1.el9_1.0.2 5.14.0-162.18.1.el9_1 5.14.0-162.22.2.el9_1 5.14.0-162.23.1.el9_1 5.14.0-162.6.1.el9_1.0.1 5.14.0-162.6.1.el9_1 5.14.0-284.30.1.el9_2 5.14.0-362.13.1.el9_3 5.14.0-362.18.1.el9_3.0.1 5.14.0-362.18.1.el9_3 5.14.0-362.24.1.el9_3.0.1 5.14.0-362.24.1.el9_3 5.14.0-362.8.1.el9_3 5.14.0-427.16.1.el9_4 5.14.0-427.18.1.el9_4 5.14.0-427.20.1.el9_4.0.1 5.14.0-427.20.1.el9_4 5.14.0-427.22.1.el9_4 5.14.0-427.24.1.el9_4 5.14.0-427.26.1.el9_4 5.14.0-427.28.1.el9_4 5.14.0-427.31.1.el9_4 5.14.0-427.33.1.el9_4 5.14.0-427.35.1.el9_4 5.14.0-427.37.1.el9_4 5.14.0-427.40.1.el9_4 5.14.0-70.22.1.el9_0 5.14.0-70.26.1.el9_0 5.14.0-70.30.1.el9_0 5.14.0-284.11.1.el9_2 5.14.0-427.13.1.el9_4
Released
AlmaLinux 9
5.14.0-162.18.1.el9_1 show all hide all
5.14.0-162.22.2.el9_1 5.14.0-162.23.1.el9_1 5.14.0-162.6.1.el9_1 5.14.0-284.11.1.el9_2 5.14.0-284.18.1.el9_2 5.14.0-284.25.1.el9_2 5.14.0-284.30.1.el9_2 5.14.0-362.13.1.el9_3 5.14.0-362.18.1.el9_3 5.14.0-362.24.1.el9_3 5.14.0-362.24.2.el9_3 5.14.0-362.8.1.el9_3 5.14.0-427.13.1.el9_4 5.14.0-427.16.1.el9_4 5.14.0-427.18.1.el9_4 5.14.0-427.20.1.el9_4 5.14.0-427.22.1.el9_4 5.14.0-427.24.1.el9_4 5.14.0-427.26.1.el9_4 5.14.0-427.28.1.el9_4 5.14.0-427.31.1.el9_4 5.14.0-427.33.1.el9_4 5.14.0-427.35.1.el9_4 5.14.0-427.37.1.el9_4 5.14.0-70.22.1.el9_0 5.14.0-70.26.1.el9_0 5.14.0-70.30.1.el9_0 5.14.0-162.12.1.el9_1 5.14.0-427.40.1.el9_4 5.14.0-70.13.1.el9_0 5.14.0-70.17.1.el9_0
Released
Amazon Linux 2 5.4
Will Not Fix
Amazon Linux 2 5.10
Will Not Fix
CentOS 7 ELS
Ready For Release