CVE-2022-49162

video: fbdev: sm712fb: Fix crash in smtcfb_write()

MEDIUM

5.5

CVSS Score

Published: February 26, 2025 at 01:55 AM UTC

Updated: August 5, 2026 at 09:24 AM UTC

1 product affected across 1 vendorLinux Kernel

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Severity

MEDIUM5.5

Exploit prediction

EPSS 0.3%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel · Linux

95%

v < 4.9.3112.6.33 ≤ v < 4.14.2762.6.33 ≤ v < 4.19.2382.6.33 ≤ v < 4.9.3112.6.33 ≤ v < 5.10.1102.6.33 ≤ v < 5.15.332.6.33 ≤ v < 5.16.192.6.33 ≤ v < 5.17.22.6.33 ≤ v < 5.182.6.33 ≤ v < 5.4.1894.10 ≤ v < 4.14.2764.15 ≤ v < 4.19.2384.20 ≤ v < 5.4.1895.11 ≤ v < 5.15.335.16 ≤ v < 5.16.195.17 ≤ v < 5.17.25.5 ≤ v < 5.10.1102.6.33d7edf47947f9d921be6ca5fc8e83049124466f98

Vendor states this is fixed in 0ec746674296c94137f074309c26d17e644c0498 (fixed)

Vendor states this is fixed in 1aea36a62f0a0ad67eccc945bac0bd6422ef720f (fixed)

Vendor states this is fixed in 3b36c05f68ba32d0dfb63abc9016d6fe9117829f (fixed)

Vendor states this is fixed in 4f01d09b2bbfbcb47b3eb305560a7f4857a32260 (fixed)

Vendor states this is fixed in 809b8cde86320698661eec677222bc5c5df76176 (fixed)

Vendor states this is fixed in aeb635b49530b7d19e140949753409f759ba99be (fixed)

Vendor states this is fixed in b1c28577529cdfad40c8242673285f1e1e4c314e (fixed)

Vendor states this is fixed in eae90015d10f0c9a47fc4adccba4cd79dce664e4 (fixed)

Vendor states this is fixed in fb791514acf9070225eed46e1ccbb0aa7aae5da5 (fixed)

Vendor states this is fixed in 2.6.33 (unaffected)

Vendor states this is fixed in 4.14.276 (unaffected)

Vendor states this is fixed in 4.19.238 (unaffected)