CVE-2022-49162
video: fbdev: sm712fb: Fix crash in smtcfb_write()
- Published
- Updated
- Reserved
- Assigned by
- Linux
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| LinuxCNA (assigner) | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Modified | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.29% · top 78% of all CVEs (6 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Affected products
- affected d7edf47947f9d921be6ca5fc8e83049124466f98 – < fb791514acf9070225eed46e1ccbb0aa7aae5da5
- affected d7edf47947f9d921be6ca5fc8e83049124466f98 – < 0ec746674296c94137f074309c26d17e644c0498
- affected d7edf47947f9d921be6ca5fc8e83049124466f98 – < 1aea36a62f0a0ad67eccc945bac0bd6422ef720f
- affected d7edf47947f9d921be6ca5fc8e83049124466f98 – < 3b36c05f68ba32d0dfb63abc9016d6fe9117829f
- affected d7edf47947f9d921be6ca5fc8e83049124466f98 – < b1c28577529cdfad40c8242673285f1e1e4c314e
- affected d7edf47947f9d921be6ca5fc8e83049124466f98 – < eae90015d10f0c9a47fc4adccba4cd79dce664e4
- affected d7edf47947f9d921be6ca5fc8e83049124466f98 – < aeb635b49530b7d19e140949753409f759ba99be
- affected d7edf47947f9d921be6ca5fc8e83049124466f98 – < 809b8cde86320698661eec677222bc5c5df76176
- affected d7edf47947f9d921be6ca5fc8e83049124466f98 – < 4f01d09b2bbfbcb47b3eb305560a7f4857a32260
- affected 2.6.33
- unaffected < 2.6.33
- unaffected 4.9.311 – ≤ 4.9.*
- unaffected 4.14.276 – ≤ 4.14.*
- unaffected 4.19.238 – ≤ 4.19.*
- unaffected 5.4.189 – ≤ 5.4.*
- unaffected 5.10.110 – ≤ 5.10.*
- unaffected 5.15.33 – ≤ 5.15.*
- unaffected 5.16.19 – ≤ 5.16.*
- unaffected 5.17.2 – ≤ 5.17.*
- unaffected 5.18 – ≤ *
References (9)
- https://git.kernel.org/stable/c/fb791514acf9070225eed46e1ccbb0aa7aae5da5 (opens in a new tab)
- https://git.kernel.org/stable/c/0ec746674296c94137f074309c26d17e644c0498 (opens in a new tab)
- https://git.kernel.org/stable/c/1aea36a62f0a0ad67eccc945bac0bd6422ef720f (opens in a new tab)
- https://git.kernel.org/stable/c/3b36c05f68ba32d0dfb63abc9016d6fe9117829f (opens in a new tab)
- https://git.kernel.org/stable/c/b1c28577529cdfad40c8242673285f1e1e4c314e (opens in a new tab)
- https://git.kernel.org/stable/c/eae90015d10f0c9a47fc4adccba4cd79dce664e4 (opens in a new tab)
- https://git.kernel.org/stable/c/aeb635b49530b7d19e140949753409f759ba99be (opens in a new tab)
- https://git.kernel.org/stable/c/809b8cde86320698661eec677222bc5c5df76176 (opens in a new tab)
- https://git.kernel.org/stable/c/4f01d09b2bbfbcb47b3eb305560a7f4857a32260 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2022-49162)Record last updated .