CVE-2022-49162
CVE-2022-49162 is a medium-severity vulnerability in Linux Linux Kernel with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.
Key facts
- Severity: Medium (CVSS 3.x base score 5.5)
- EPSS exploit prediction: 0% (17th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2022-55063
- Affected product: Linux Linux Kernel
- Published:
- Last modified:
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.
Frequently asked questions
- What is CVE-2022-49162?
- 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.
- How severe is CVE-2022-49162?
- CVE-2022-49162 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2022-49162 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2022-49162?
- CVE-2022-49162 affects Linux Linux Kernel. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2022-49162?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2022-49162 have an EU (EUVD) identifier?
- Yes. CVE-2022-49162 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2022-55063.
- When was CVE-2022-49162 published?
- CVE-2022-49162 was published on 2025-02-26 and last updated on 2026-06-17.
References
- https://git.kernel.org/stable/c/0ec746674296c94137f074309c26d17e644c0498
- https://git.kernel.org/stable/c/1aea36a62f0a0ad67eccc945bac0bd6422ef720f
- https://git.kernel.org/stable/c/3b36c05f68ba32d0dfb63abc9016d6fe9117829f
- https://git.kernel.org/stable/c/4f01d09b2bbfbcb47b3eb305560a7f4857a32260
- https://git.kernel.org/stable/c/809b8cde86320698661eec677222bc5c5df76176
- https://git.kernel.org/stable/c/aeb635b49530b7d19e140949753409f759ba99be
- https://git.kernel.org/stable/c/b1c28577529cdfad40c8242673285f1e1e4c314e
- https://git.kernel.org/stable/c/eae90015d10f0c9a47fc4adccba4cd79dce664e4
- https://git.kernel.org/stable/c/fb791514acf9070225eed46e1ccbb0aa7aae5da5
Affected products (1)
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
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