ghsa-7rcf-f323-7594
Vulnerability from github
Published
2025-10-15 21:31
Modified
2025-10-15 21:31
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Details

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.

Show details on source website

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{
  "affected": [],
  "aliases": [
    "CVE-2022-49162"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-02-26T07:00:53Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nvideo: fbdev: sm712fb: Fix crash in smtcfb_write()\n\nWhen the sm712fb driver writes three bytes to the framebuffer, the\ndriver will crash:\n\n    BUG: unable to handle page fault for address: ffffc90001ffffff\n    RIP: 0010:smtcfb_write+0x454/0x5b0\n    Call Trace:\n     vfs_write+0x291/0xd60\n     ? do_sys_openat2+0x27d/0x350\n     ? __fget_light+0x54/0x340\n     ksys_write+0xce/0x190\n     do_syscall_64+0x43/0x90\n     entry_SYSCALL_64_after_hwframe+0x44/0xae\n\nFix it by removing the open-coded endianness fixup-code.",
  "id": "GHSA-7rcf-f323-7594",
  "modified": "2025-10-15T21:31:39Z",
  "published": "2025-10-15T21:31:39Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49162"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0ec746674296c94137f074309c26d17e644c0498"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1aea36a62f0a0ad67eccc945bac0bd6422ef720f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3b36c05f68ba32d0dfb63abc9016d6fe9117829f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4f01d09b2bbfbcb47b3eb305560a7f4857a32260"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/809b8cde86320698661eec677222bc5c5df76176"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/aeb635b49530b7d19e140949753409f759ba99be"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b1c28577529cdfad40c8242673285f1e1e4c314e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/eae90015d10f0c9a47fc4adccba4cd79dce664e4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fb791514acf9070225eed46e1ccbb0aa7aae5da5"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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