CVE-2026-74685

*** Pendiente de traducción *** In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> hwmon: (ltc4282) Clamp negative current limits<br /> <br /> When a negative value is passed to ltc4282_write_curr(), the signed long<br /> val is cast directly to u64:<br /> <br /> drivers/hwmon/ltc4282.c:ltc4282_write_curr() {<br /> /* need to pass it in millivolt */<br /> u32 in = DIV_ROUND_CLOSEST_ULL((u64)val * st-&gt;rsense, DECA * MICRO);<br /> ...<br /> }<br /> <br /> This cast converts negative inputs into large positive values. The<br /> subsequent division result overflows the u32 in variable, truncating<br /> to a pseudo-random positive value. When this is passed to<br /> ltc4282_write_voltage_byte(), it is clamped to the maximum limit instead<br /> of zero.<br /> <br /> Clamp val to 0 and to the maximum supported upper limit before the cast<br /> and assign the result to a 64-bit temporary variable before the division<br /> to avoid the underflow and an also possible overflow.