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CVE-2023-53553HID: hyperv: avoid struct memcpy overrun warning

Description

In the Linux kernel, the following vulnerability has been resolved: HID: hyperv: avoid struct memcpy overrun warning A previous patch addressed the fortified memcpy warning for most builds, but I still see this one with gcc-9: In file included from include/linux/string.h:254, from drivers/hid/hid-hyperv.c:8: In function 'fortify_memcpy_chk', inlined from 'mousevsc_on_receive' at drivers/hid/hid-hyperv.c:272:3: include/linux/fortify-string.h:583:4: error: call to '__write_overflow_field' declared with attribute warning: detected write beyond size of field (1st parameter); maybe use struct_group()? [-Werror=attribute-warning] 583 | __write_overflow_field(p_size_field, size); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ My guess is that the WARN_ON() itself is what confuses gcc, so it no longer sees that there is a correct range check. Rework the code in a way that helps readability and avoids the warning.

Timeline

  1. ID reserved

    By Linux

  2. Published

  3. · 7 months later

    Record updated

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

CVSS scores of CVE-2023-53553, by who scored it
Scored byCVSSScoreVector
NVDNVD · Analyzed3.1Medium5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS (exploitation in 30 days)
0.14% · top 97% of all CVEs (13 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.

Affected products

  • Linux · Linux

    • affected 542f25a94471570e2594be5b422b9ca572cf88a1 – < a7902cc5f5b9c95997017c8e309da760fb1deb6e
    • affected 542f25a94471570e2594be5b422b9ca572cf88a1 – < 5f151364b1da6bd217632fd4ee8cc24eaf66a497

  • Linux · Linux

    • affected 6.2
    • unaffected < 6.2
    • unaffected 6.4.5 – ≤ 6.4.*
    • unaffected 6.5 – ≤ *

References

References2

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .