CVE-2026-45882

System crash via racy IRQ teardown

Published May 27, 2026 · Updated May 27, 2026

Use-after-free in the pm8916_bms_vm driver in Linux Kernel allows local users to crash the system during device removal. The driver requests its IRQ before registering the power_supply handle, so reverse devm cleanup frees that handle while the interrupt handler remains callable. Triggering removal requires root or CAP_SYS_ADMIN, and an interrupt must land in an attacker-uncontrollable race window; success causes a system crash or silent kernel-memory corruption.

CVSS severity7.8
High
EPSS probability0.16%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Use-after-free in the pm8916_bms_vm driver in Linux Kernel allows local users to crash the system during device removal. The driver requests its IRQ before registering the power_supply handle, so reverse devm cleanup frees that handle while the interrupt handler remains callable. Triggering removal requires root or CAP_SYS_ADMIN, and an interrupt must land in an attacker-uncontrollable race window; success causes a system crash or silent kernel-memory corruption.

The record

CVE
CVE-2026-45882
Published
May 27, 2026
Updated
May 27, 2026
Vendor
The Linux Kernel Organization
Product
Linux Kernel
Classifications
CWE-416, T1499.004
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. May 27, 2026CVE publishedPublication date reported by the CVE source.
  2. May 27, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=098bce1838e0549228c8d426e5de72ec5594b5c4 <17db6b3abd823c9fba3f3413c4f0f432d99d49dc
  2. Affected versionversion=098bce1838e0549228c8d426e5de72ec5594b5c4 <62914959b35e9a1e29cc0f64cb8cfc5075a5366f
  3. Affected versionversion=098bce1838e0549228c8d426e5de72ec5594b5c4 <a8b7117ae3a791c6a328674d05a06cd45d8241bd
  4. Affected versionversion=098bce1838e0549228c8d426e5de72ec5594b5c4 <b69bb88e20c6f8e998dff3e13a316207f49d3fa2
  5. Affected versionversion=6.7

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

The Linux Kernel Organization · Linux Kernelversion=098bce1838e0549228c8d426e5de72ec5594b5c4 <17db6b3abd823c9fba3f3413c4f0f432d99d49dc; version=098bce1838e0549228c8d426e5de72ec5594b5c4 <62914959b35e9a1e29cc0f64cb8cfc5075a5366f; version=098bce1838e0549228c8d426e5de72ec5594b5c4 <a8b7117ae3a791c6a328674d05a06cd45d8241bd; version=098bce1838e0549228c8d426e5de72ec5594b5c4 <b69bb88e20c6f8e998dff3e13a316207f49d3fa2; version=6.7

Published CVSS scores

6.3Amazon LinuxCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H
7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8Canonical UbuntuCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-416Use After Free
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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