Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 9f67c1e63976d3403f0b250b03ffe959c890f9db before 5127f3cbfc78a7b301b86328247230bec47e0bb3; affected 9f67c1e63976d3403f0b250b03ffe959c890f9db before 53b0c7b15accb18d15d95c7fe68f61630ebfd1ca; affected 9f67c1e63976d3403f0b250b03ffe959c890f9db before 09c4a610153286cef54d4f0c85398f4e32fc227e |
| Linux / Linux | affected 6.8; unaffected 0 before 6.8; unaffected 6.12.13 through 6.12.*; unaffected 6.13.2 through 6.13.*; unaffected 6.14 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/5127f3cbfc78a7b301b86328247230bec47e0bb3
- https://git.kernel.org/stable/c/53b0c7b15accb18d15d95c7fe68f61630ebfd1ca
- https://git.kernel.org/stable/c/09c4a610153286cef54d4f0c85398f4e32fc227e
ADP enrichment
No English description supplied.
No references supplied.