7.8

CVE-2022-49162: video: fbdev: sm712fb: Fix crash in smtcfb_write()

Modified
AliasesUBUNTU-CVE-2022-49162DEBIAN-CVE-2022-49162
Published 26-02-2025Last modified 05-08-2026

Vulnerability summary

CVE-2022-49162 is a high (CVSS 7.8) vulnerability in linux. EPSS estimates a 0.29% chance of exploitation in the next 30 days, higher than 21.5% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 7.8, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
7.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.29%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 6 · Related 6
SUSE-SU-2025:1027-1SUSE-SU-2025:1176-1SUSE-SU-2025:1183-1SUSE-SU-2025:1194-1SUSE-SU-2025:1241-1SUSE-SU-2025:1263-1

Timeline

  1. 26-02-2025
    PublishedVulnerability first disclosed.
  2. 05-08-2026
    Last modifiedVulnerability information updated.

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.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

0.29%

Chance of exploitation in the next 30 days

Percentile

22%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.29% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu106 products
  • linuxAll versions (No fix recorded) | < 4.15.0-189.200 | < 5.4.0-117.132 | < 5.15.0-37.39
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 4.15.0-1137.148 | < 5.4.0-1078.84 | < 5.15.0-1011.14
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ d7edf47947f9d921be6ca5fc8e83049124466f98, < fb791514acf9070225eed46e1ccbb0aa7aae5da5 | ≥ d7edf47947f9d921be6ca5fc8e83049124466f98, < 0ec746674296c94137f074309c26d17e644c0498 | ≥ d7edf47947f9d921be6ca5fc8e83049124466f98, < 1aea36a62f0a0ad67eccc945bac0bd6422ef720f | ≥ d7edf47947f9d921be6ca5fc8e83049124466f98, < 3b36c05f68ba32d0dfb63abc9016d6fe9117829f | ≥ d7edf47947f9d921be6ca5fc8e83049124466f98, < b1c28577529cdfad40c8242673285f1e1e4c314e | ≥ d7edf47947f9d921be6ca5fc8e83049124466f98, < eae90015d10f0c9a47fc4adccba4cd79dce664e4 | ≥ d7edf47947f9d921be6ca5fc8e83049124466f98, < aeb635b49530b7d19e140949753409f759ba99be | ≥ d7edf47947f9d921be6ca5fc8e83049124466f98, < 809b8cde86320698661eec677222bc5c5df76176 | ≥ d7edf47947f9d921be6ca5fc8e83049124466f98, < 4f01d09b2bbfbcb47b3eb305560a7f4857a32260 | 2.6.33
  • linux_kernel< 4.9.311 | ≥ 4.10, < 4.14.276 | ≥ 4.15, < 4.19.238 | ≥ 4.20, < 5.4.189 | ≥ 5.5, < 5.10.110 | ≥ 5.11, < 5.15.33 | ≥ 5.16, < 5.16.19 | ≥ 5.17, < 5.17.2
Debian1 product
  • linux< 5.17.3-1

3 vendors · 109 products

References

13 links
Show all 13 references