CVE-2026-63824

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CVSS v3.1

7.8

EPSS

0.13%

Published

Jul 19, 2026

Modified

Jul 27, 2026

Public PoC / Exploit

All weaponized →

No public PoC or exploit code indexed for this CVE.

Links to public security research (Exploit-DB, Nuclei, Trickest, GitHub) for defensive use only.

Description

In the Linux kernel, the following vulnerability has been resolved: KEYS: fix overflow in keyctl_pkey_params_get_2() The length for the internal output buffer is calculated incorrectly, which can result overflow when a too small buffer is provided. Fix the bug by allocating internal output with the size of the maximum length of the cryptographic primitive instead of caller provided size.

CVSS Vector

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

References (8)

https://git.kernel.org/stable/c/0f3058d7d26f81df9b68a18ddbe164bdc3c5eff3

https://git.kernel.org/stable/c/5165f1cc727f1322456735df212d8e26ec237a8d

https://git.kernel.org/stable/c/5966e4e2ba213ab7ad559166152eb4f1f170dd2c

https://git.kernel.org/stable/c/622ec2dcd59f21623f2a7ab773c80ceb7d555e3a

https://git.kernel.org/stable/c/670fc6a311ed321522b7fff92cf0fc376b4f6e78

https://git.kernel.org/stable/c/b11c1fa32667692a2c0566e10163758e786e430c

https://git.kernel.org/stable/c/b1e247338bc71826a2d2def3e0874c34749df69a

https://git.kernel.org/stable/c/cb481e59ea6cae3b7796ac1d7a22b6b24c3f3c0b

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