CVE-2022-49162

HIGH

Linux Kernel < 4.9.311 - Denial of Service via smtcfb_write Framebuffer Write

Title source: llm
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: video: fbdev: sm712fb: Fix crash in smtcfb_write() When the sm712fb driver writes three bytes to the framebuffer, the driver will crash: BUG: unable to handle page fault for address: ffffc90001ffffff RIP: 0010:smtcfb_write+0x454/0x5b0 Call Trace: vfs_write+0x291/0xd60 ? do_sys_openat2+0x27d/0x350 ? __fget_light+0x54/0x340 ksys_write+0xce/0x190 do_syscall_64+0x43/0x90 entry_SYSCALL_64_after_hwframe+0x44/0xae Fix it by removing the open-coded endianness fixup-code.

References (9)

Core 9

Scores

CVSS v3 7.8
EPSS 0.0028
EPSS Percentile 20.6%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Details

Status published
Products (29)
linux/Kernel 2.6.33 - 4.9.311linux
linux/Kernel 4.10.0 - 4.14.276linux
linux/Kernel 4.15.0 - 4.19.238linux
linux/Kernel 4.20.0 - 5.4.189linux
linux/Kernel 5.11.0 - 5.15.33linux
linux/Kernel 5.16.0 - 5.16.19linux
linux/Kernel 5.17.0 - 5.17.2linux
linux/Kernel 5.5.0 - 5.10.110linux
Linux/Linux < 2.6.33
Linux/Linux 2.6.33
... and 19 more
Published Feb 26, 2025
Tracked Since Feb 18, 2026