CVE-2025-68724

crypto: asymmetric_keys - prevent overflow in asymmetric_key_generate_id

State: Published
Severity: 7.8 High
Published: Dec 24, 2025
Updated: Oct 15, 2026
Reserved: Dec 24, 2025

Description

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.

Scores

CVSS	Score	Vector	Source
3.1	7.8 High	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	Linux

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	7901c1a8effbe5f89673bfc09d6e37b8f334f1a7 to before 60a7be5ee74408147e439164ac067e418ca74bb4Affected 7901c1a8effbe5f89673bfc09d6e37b8f334f1a7 to before c13c6e9de91d7f1dd7df756b1fa5a1f968839d76Affected 7901c1a8effbe5f89673bfc09d6e37b8f334f1a7 to before dfc1613961828745165aec6552c3818fa14ab725Affected 7901c1a8effbe5f89673bfc09d6e37b8f334f1a7 to before 5b8ac617c8dab5cad3c4dc8d84d0987808a0f99cAffected 7901c1a8effbe5f89673bfc09d6e37b8f334f1a7 to before c73be4f51eed98fa0c7c189db8f279e1c86bfbf7Affected 7901c1a8effbe5f89673bfc09d6e37b8f334f1a7 to before 6af753ac5205115e6c310c8c4236c01b59a1c44fAffected 7901c1a8effbe5f89673bfc09d6e37b8f334f1a7 to before b7090a5c153105b9fd221a5a81459ee8cd5babd6Affected 7901c1a8effbe5f89673bfc09d6e37b8f334f1a7 to before df0845cf447ae1556c3440b8b155de0926cbaa56Affected
LinuxLinux	3.18Affected before 3.18Not affected 5.10.248 through 5.10.Not affected 5.15.198 through 5.15.Not affected 6.1.160 through 6.1.Not affected 6.6.120 through 6.6.Not affected 6.12.63 through 6.12.Not affected 6.17.13 through 6.17.Not affected 6.18.2 through 6.18.*Not affected 6.19 and laterNot affected

Product

Versions

LinuxLinux

7901c1a8effbe5f89673bfc09d6e37b8f334f1a7 to before 60a7be5ee74408147e439164ac067e418ca74bb4Affected
7901c1a8effbe5f89673bfc09d6e37b8f334f1a7 to before c13c6e9de91d7f1dd7df756b1fa5a1f968839d76Affected
7901c1a8effbe5f89673bfc09d6e37b8f334f1a7 to before dfc1613961828745165aec6552c3818fa14ab725Affected
7901c1a8effbe5f89673bfc09d6e37b8f334f1a7 to before 5b8ac617c8dab5cad3c4dc8d84d0987808a0f99cAffected
7901c1a8effbe5f89673bfc09d6e37b8f334f1a7 to before c73be4f51eed98fa0c7c189db8f279e1c86bfbf7Affected
7901c1a8effbe5f89673bfc09d6e37b8f334f1a7 to before 6af753ac5205115e6c310c8c4236c01b59a1c44fAffected
7901c1a8effbe5f89673bfc09d6e37b8f334f1a7 to before b7090a5c153105b9fd221a5a81459ee8cd5babd6Affected
7901c1a8effbe5f89673bfc09d6e37b8f334f1a7 to before df0845cf447ae1556c3440b8b155de0926cbaa56Affected

LinuxLinux

3.18Affected
before 3.18Not affected
5.10.248 through 5.10.*Not affected
5.15.198 through 5.15.*Not affected
6.1.160 through 6.1.*Not affected
6.6.120 through 6.6.*Not affected
6.12.63 through 6.12.*Not affected
6.17.13 through 6.17.*Not affected
6.18.2 through 6.18.*Not affected
6.19 and laterNot affected

References

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.