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CVE Record

CVE-2024-26606: binder: signal epoll threads of self-work

In the Linux kernel, the following vulnerability has been resolved: binder: signal epoll threads of self-work In (e)poll mode, threads often depend on I/O events to determine when data is ready for consumption. Within binder, a thread may initiate a command via BINDER_WRITE_READ without a read buffer and then make use of epoll_wait() or similar to consume any responses afterwards. It is then crucial that epoll threads are signaled via wakeup when they queue their own work. Otherwise, they risk waiting indefinitely for an event leaving their work unhandled. What is worse, subsequent commands won't trigger a wakeup either as the thread has pending work.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2024-26606 is a Linux kernel binder issue where a process using poll or epoll may not be woken when its own binder work is queued. The result can be stalled binder communication and unhandled work, creating an availability risk rather than a clearly documented data exposure issue.

Executive priority

Treat as a normal kernel availability patching item unless binder-dependent systems are business critical. There is no cited exploitation evidence, but kernel-level reliability flaws should be closed through routine security update cycles.

Technical view

The kernel binder driver failed to wake epoll-based threads after self-work was queued through BINDER_WRITE_READ without a read buffer. Affected threads could wait indefinitely, and later commands might not trigger wakeups because pending work already exists. Stable kernel commits resolve this behavior.

Likely exposure

Exposure is most likely on Linux systems running affected kernel versions where the binder driver is enabled and used. The bundle lists multiple Linux version ranges and kernel stable fixes, with Debian LTS and Fedora references indicating downstream distribution updates.

Exploitation context

The source bundle does not cite active exploitation, public exploit use, or KEV listing. The described impact is operational: binder users can hang waiting for events, potentially disrupting workloads that depend on binder IPC behavior.

Researcher notes

Evidence supports a binder epoll wakeup logic flaw fixed in Linux stable commits. The bundle lacks CVSS, CWE, exploit prerequisites, attacker locality, and complete downstream version mapping, so exact severity and asset-specific exploitability require vendor advisory confirmation.

Mitigation direction

  • Update to a vendor kernel containing the referenced stable binder fixes.
  • Apply relevant Debian, Fedora, or other distribution kernel security updates.
  • Reboot into the updated kernel after package installation.
  • Check vendor advisories before using non-vendor kernel backports.
  • Prioritize systems where binder is enabled and operationally important.

Validation and detection

  • Inventory running kernel versions across Linux assets.
  • Check package advisories or changelogs for CVE-2024-26606 coverage.
  • Confirm the active kernel changed after reboot.
  • Verify whether binder is enabled and used on affected hosts.
  • Monitor for recurring binder-related hangs after remediation.
Prepared
Confidence
medium
Sources
12

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

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CVE-2024-26606 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
3Timeline events
2ADP providers
12Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: noTechnical Impact: partial

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
other:ssvc
CVECVE Program Container

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinux457b9a6f09f011ebcb9b52cc203a6331a6fc2de7, 457b9a6f09f011ebcb9b52cc203a6331a6fc2de7, 457b9a6f09f011ebcb9b52cc203a6331a6fc2de7, 457b9a6f09f011ebcb9b52cc203a6331a6fc2de7, 457b9a6f09f011ebcb9b52cc203a6331a6fc2de7, 457b9a6f09f011ebcb9b52cc203a6331a6fc2de7, 457b9a6f09f011ebcb9b52cc203a6331a6fc2de7, 457b9a6f09f011ebcb9b52cc203a6331a6fc2de7unaffected
LinuxLinux2.6.29, 0, 4.19.307, 5.4.269, 5.10.210, 5.15.149, 6.1.79, 6.6.18, 6.7.6, 6.8affected
Weakness

CWE details

No CWE listed

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