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Incorrect Bitwise Shift of Integer The advisory has been revoked - it doesn't affect any version of package perf  (opens in a new tab)

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EPSS
0.13% (3rd percentile)

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  • Snyk IDSNYK-CENTOS6-PERF-16292130
  • published25 Apr 2026
  • disclosed24 Apr 2026
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Introduced: 24 Apr 2026

CVE-2026-31624  (opens in a new tab)
CWE-1335  (opens in a new tab)

Amendment

The Centos security team deemed this advisory irrelevant for Centos:6.

NVD Description

Note: Versions mentioned in the description apply only to the upstream perf package and not the perf package as distributed by Centos.

In the Linux kernel, the following vulnerability has been resolved:

HID: core: clamp report_size in s32ton() to avoid undefined shift

s32ton() shifts by n-1 where n is the field's report_size, a value that comes directly from a HID device. The HID parser bounds report_size only to <= 256, so a broken HID device can supply a report descriptor with a wide field that triggers shift exponents up to 256 on a 32-bit type when an output report is built via hid_output_field() or hid_set_field().

Commit ec61b41918587 ("HID: core: fix shift-out-of-bounds in hid_report_raw_event") added the same n > 32 clamp to the function snto32(), but s32ton() was never given the same fix as I guess syzbot hadn't figured out how to fuzz a device the same way.

Fix this up by just clamping the max value of n, just like snto32() does.