CVE-2026-31603 (GCVE-0-2026-31603)
Vulnerability from cvelistv5
Published
2026-04-24 14:42
Modified
2026-04-27 13:56
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: staging: sm750fb: fix division by zero in ps_to_hz() ps_to_hz() is called from hw_sm750_crtc_set_mode() without validating that pixclock is non-zero. A zero pixclock passed via FBIOPUT_VSCREENINFO causes a division by zero. Fix by rejecting zero pixclock in lynxfb_ops_check_var(), consistent with other framebuffer drivers.
References
Impacted products
Vendor Product Version
Linux Linux Version: 81dee67e215b23f0c98182eece122b906d35765a
Version: 81dee67e215b23f0c98182eece122b906d35765a
Version: 81dee67e215b23f0c98182eece122b906d35765a
Version: 81dee67e215b23f0c98182eece122b906d35765a
Version: 81dee67e215b23f0c98182eece122b906d35765a
Version: 81dee67e215b23f0c98182eece122b906d35765a
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{
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          "programFiles": [
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      "cpeApplicability": [
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nstaging: sm750fb: fix division by zero in ps_to_hz()\n\nps_to_hz() is called from hw_sm750_crtc_set_mode() without validating\nthat pixclock is non-zero. A zero pixclock passed via FBIOPUT_VSCREENINFO\ncauses a division by zero.\n\nFix by rejecting zero pixclock in lynxfb_ops_check_var(), consistent\nwith other framebuffer drivers."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-27T13:56:44.927Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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          "url": "https://git.kernel.org/stable/c/779412e0e391fd4a0d12e1d1adaa7bf043de62d7"
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          "url": "https://git.kernel.org/stable/c/2f640c6043aeab31a2f607d7605271860c3b11df"
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        },
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          "url": "https://git.kernel.org/stable/c/daf6733bd7c4c5015b431739ac29b0e29021096b"
        },
        {
          "url": "https://git.kernel.org/stable/c/75a1621e4f91310673c9acbcbb25c2a7ff821cd3"
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      ],
      "title": "staging: sm750fb: fix division by zero in ps_to_hz()",
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-31603",
    "datePublished": "2026-04-24T14:42:26.601Z",
    "dateReserved": "2026-03-09T15:48:24.122Z",
    "dateUpdated": "2026-04-27T13:56:44.927Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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