CVE-2022-49162

low-risk
Published 2025-02-26

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.

Do I need to act?

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0.05% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.5/10 Medium
LOCAL / LOW complexity

Affected Products (1)

Affected Vendors

Linux

References (9)

Patch https://git.kernel.org/stable/c/0ec746674296c94137f074309c26d17e644c0498
Patch https://git.kernel.org/stable/c/1aea36a62f0a0ad67eccc945bac0bd6422ef720f
Patch https://git.kernel.org/stable/c/3b36c05f68ba32d0dfb63abc9016d6fe9117829f
Patch https://git.kernel.org/stable/c/4f01d09b2bbfbcb47b3eb305560a7f4857a32260
Patch https://git.kernel.org/stable/c/809b8cde86320698661eec677222bc5c5df76176
Patch https://git.kernel.org/stable/c/aeb635b49530b7d19e140949753409f759ba99be
Patch https://git.kernel.org/stable/c/b1c28577529cdfad40c8242673285f1e1e4c314e
Patch https://git.kernel.org/stable/c/eae90015d10f0c9a47fc4adccba4cd79dce664e4
Patch https://git.kernel.org/stable/c/fb791514acf9070225eed46e1ccbb0aa7aae5da5
23
/ 100
low-risk
Severity 18/34 · Moderate
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal