7.1

CVE-2025-38556

HID: core: Harden s32ton() against conversion to 0 bits

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

HID: core: Harden s32ton() against conversion to 0 bits

Testing by the syzbot fuzzer showed that the HID core gets a
shift-out-of-bounds exception when it tries to convert a 32-bit
quantity to a 0-bit quantity.  Ideally this should never occur, but
there are buggy devices and some might have a report field with size
set to zero; we shouldn't reject the report or the device just because
of that.

Instead, harden the s32ton() routine so that it returns a reasonable
result instead of crashing when it is called with the number of bits
set to 0 -- the same as what snto32() does.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 2.6.20 < 6.12.46
Linux ≫ Linux Kernel Version >= 6.13 < 6.15.10
Linux ≫ Linux Kernel Version >= 6.16 < 6.16.1
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.15% 0.046
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 7.1 1.8 5.2
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
CWE-125 Out-of-bounds Read

The product reads data past the end, or before the beginning, of the intended buffer.

https://git.kernel.org/stable/c/865ad8469fa24de1559f247d9426ab01e5ce3a56
Patch
https://git.kernel.org/stable/c/8b4a94b1510f6a46ec48494b52ee8f67eb4fc836
Patch
https://git.kernel.org/stable/c/a6b87bfc2ab5bccb7ad953693c85d9062aef3fdd
Patch
https://git.kernel.org/stable/c/d3b504146c111548ab60b6ef7aad00bfb1db05a2
Patch
https://git.kernel.org/stable/c/3c86548a20d7bc2861aa4de044991a327bebad1a
https://git.kernel.org/stable/c/810189546cb6c8f36443ed091d91f1f5d2fc2ec7
https://git.kernel.org/stable/c/6cdf6c708717c5c6897d0800a1793e83757c7491
https://git.kernel.org/stable/c/eeeaba737919bdce9885e2a00ac2912f61a3684d