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CVE-2022-48978 is an incorrect bitwise-shift vulnerability in the Linux kernel HID core report-processing path. The snto32() helper can receive a HID field bit length, n, greater than 32 while processing a raw HID input report through hid_report_raw_event(). It subsequently performs a shift based on n, although the operation uses a 32-bit int. Values exceeding 32 cause an invalid shift exponent and undefined behavior; the reported case used an exponent of 127. The fix bounds n to 32 before performing the conversion.
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Linux kernel HID core shift-out-of-bounds flaw in hid_report_raw_event.
A Linux kernel HID core shift-out-of-bounds vulnerability in hid_report_raw_event addressed by the kernel-rt update.
A Linux kernel HID core shift-out-of-bounds vulnerability in hid_report_raw_event, caused by snto32() processing an unsigned size value greater than 32 and performing a shift with an exponent too large for a 32-bit int.
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Cross-references every affected SKU, including bundled OEM variants.
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