CVE-2025-68724

In the Linux kernel, the following vulnerability has been resolved: crypto: asymmetric_keys - prevent overflow in asymmetric_key_generate_id Use check_add_overflow() to guard against potential integer overflows when adding the binary blob lengths and the size of an asymmetric_key_id structure and return ERR_PTR(-EOVERFLOW) accordingly. This prevents a possible buffer overflow when copying data from potentially malicious X.509 certificate fields that can be arbitrarily large, such as ASN.1 INTEGER serial numbers, issuer names, etc.

CVSS 3.1

7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

0.1% chance of exploitation in the next 30 days; higher than 3% of CVEs (scores of 2026-10-25)

Published

2025-12-24

Modified

2026-10-15

Record from

the NVD, synced 2026-10-19

References

• https://git.kernel.org/stable/c/5b8ac617c8dab5cad3c4dc8d84d0987808a0f99c
• https://git.kernel.org/stable/c/60a7be5ee74408147e439164ac067e418ca74bb4
• https://git.kernel.org/stable/c/6af753ac5205115e6c310c8c4236c01b59a1c44f
• https://git.kernel.org/stable/c/b7090a5c153105b9fd221a5a81459ee8cd5babd6
• https://git.kernel.org/stable/c/c13c6e9de91d7f1dd7df756b1fa5a1f968839d76

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