CVE-2024-49954

Host panic via static-call allocation warning

Published Oct 21, 2024 · Updated May 11, 2026

Denial of service in affected Linux kernel releases from 5.10 allows local users to crash hosts during static-call module loading. static_call_module_notify() invokes WARN_ON when __static_call_add_module() cannot allocate memory, despite propagating the recoverable error to userspace. Exploitation requires low-privileged local access, a module operation that reaches the allocation failure, and panic_on_warn enabled; the bounded consequence is a host panic.

CVSS severity5.5
Medium
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in affected Linux kernel releases from 5.10 allows local users to crash hosts during static-call module loading. static_call_module_notify() invokes WARN_ON when __static_call_add_module() cannot allocate memory, despite propagating the recoverable error to userspace. Exploitation requires low-privileged local access, a module operation that reaches the allocation failure, and panic_on_warn enabled; the bounded consequence is a host panic.

The record

CVE
CVE-2024-49954
Published
Oct 21, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 21, 2024CVE publishedPublication date reported by the CVE source.
  2. May 11, 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=5.10
  2. Affected versionversion=9183c3f9ed710a8edf1a61e8a96d497258d26e08 <85a104aaef1f56623acc10ba4c42d5f046ba65b7
  3. Affected versionversion=9183c3f9ed710a8edf1a61e8a96d497258d26e08 <b83bef74c121a3311240fc4002d23486b85355e4
  4. Affected versionversion=9183c3f9ed710a8edf1a61e8a96d497258d26e08 <bc9356513d56b688775497b7ac6f2b967f46a80c
  5. Affected versionversion=9183c3f9ed710a8edf1a61e8a96d497258d26e08 <e67534bd31d79952b50e791e92adf0b3e6c13b8c
  6. Affected versionversion=9183c3f9ed710a8edf1a61e8a96d497258d26e08 <ea2cdf4da093d0482f0ef36ba971e2e0c7673425
  7. Affected versionversion=9183c3f9ed710a8edf1a61e8a96d497258d26e08 <fe513c2ef0a172a58f158e2e70465c4317f0a9a2

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.10; version=9183c3f9ed710a8edf1a61e8a96d497258d26e08 <85a104aaef1f56623acc10ba4c42d5f046ba65b7; version=9183c3f9ed710a8edf1a61e8a96d497258d26e08 <b83bef74c121a3311240fc4002d23486b85355e4; version=9183c3f9ed710a8edf1a61e8a96d497258d26e08 <bc9356513d56b688775497b7ac6f2b967f46a80c; version=9183c3f9ed710a8edf1a61e8a96d497258d26e08 <e67534bd31d79952b50e791e92adf0b3e6c13b8c; version=9183c3f9ed710a8edf1a61e8a96d497258d26e08 <ea2cdf4da093d0482f0ef36ba971e2e0c7673425; version=9183c3f9ed710a8edf1a61e8a96d497258d26e08 <fe513c2ef0a172a58f158e2e70465c4317f0a9a2

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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.

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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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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