rtc: tps6594: Fix integer overflow on 32bit systems
In the Linux kernel, the following vulnerability has been resolved: rtc: tps6594: Fix integer overflow on 32bit systems The problem is this multiply in tps6594_rtc_set_offset() tmp = offset * TICKS_PER_HOUR; The "tmp" variable is an s64 but "offset" is a long in the (-277774)-277774 range. On 32bit systems a long can hold numbers up to approximately two billion. The number of TICKS_PER_HOUR is really large, (32768 * 3600) or roughly a hundred million. When you start multiplying by a hundred million it doesn't take long to overflow the two billion mark. Probably the safest way to fix this is to change the type of TICKS_PER_HOUR to long long because it's such a large number.
- Products
- Kernel
- Affected versions
- Not specified
- Fixed versions
- 6.12.13, 6.13.2
- CVEs
- CVE-2024-57953
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 6 Nov 2026, 00:36 UTC · Revision 1
Source evidence
rtc: tps6594: Fix integer overflow on 32bit systems
core-osv · Original sourcePublished 27 Feb 2025, 02:07 UTC
In the Linux kernel, the following vulnerability has been resolved: rtc: tps6594: Fix integer overflow on 32bit systems The problem is this multiply in tps6594_rtc_set_offset() tmp = offset * TICKS_PER_HOUR; The "tmp" variable is an s64 but "offset" is a long in the (-277774)-277774 range. On 32bit systems a long can hold numbers up to approximately two billion. The number of TICKS_PER_HOUR is really large, (32768 * 3600) or roughly a hundred million. When you start multiplying by a hundred million it doesn't take long to overflow the two billion mark. Probably the safest way to fix this is to change the type of TICKS_PER_HOUR to long long because it's such a large number.
osv:CVE-2024-57953
Kernel
Fixed versions: 6.12.13, 6.13.2
Complete source record
{
"id": "23b5a0456de5a9e7e724f2a4bc97570fbd2e4b50d814d1f7943ca41b066b31bd",
"url": "https://osv.dev/vulnerability/CVE-2024-57953",
"method": "structured",
"payload": {
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"title": "rtc: tps6594: Fix integer overflow on 32bit systems",
"summary": "In the Linux kernel, the following vulnerability has been resolved: rtc: tps6594: Fix integer overflow on 32bit systems The problem is this multiply in tps6594_rtc_set_offset() tmp = offset * TICKS_PER_HOUR; The \"tmp\" variable is an s64 but \"offset\" is a long in the (-277774)-277774 range. On 32bit systems a long can hold numbers up to approximately two billion. The number of TICKS_PER_HOUR is really large, (32768 * 3600) or roughly a hundred million. When you start multiplying by a hundred million it doesn't take long to overflow the two billion mark. Probably the safest way to fix this is to change the type of TICKS_PER_HOUR to long long because it's such a large number.",
"evidence": "osv:CVE-2024-57953",
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"modified": "2026-10-28T02:30:45.803393018Z",
"provider": "osv",
"references": [
"https://git.kernel.org/stable/c/09c4a610153286cef54d4f0c85398f4e32fc227e",
"https://git.kernel.org/stable/c/5127f3cbfc78a7b301b86328247230bec47e0bb3",
"https://git.kernel.org/stable/c/53b0c7b15accb18d15d95c7fe68f61630ebfd1ca",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/57xxx/CVE-2024-57953.json",
"https://nvd.nist.gov/vuln/detail/CVE-2024-57953",
"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
],
"provider_metadata": {
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"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/57xxx/CVE-2024-57953.json"
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"evidence": "/id"
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"security_relevant": true,
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"source_id": "core-osv",
"document_id": 513543,
"published_at": "2025-02-27T02:07:01.598+00:00"
}