CVE-2026-89466 Linux kernel power supply qcom_battmgr - Information Disclosure

Linux kernel power supply qcom_battmgr contains a buffer over-read caused by missing string termination in qcom_battmgr_sc8280xp_strcpy(), letting attackers cause information disclosure via user space reads, exploit requires crafted firmware string.

CVSS base score 7.7 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.14% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Information Disclosure
Impact
Information Disclosure
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Published
11 September 2026
Updated
15 October 2026

Vendor fix

Update to the latest Linux kernel version containing the fix.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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