Riskcovery

CVE-2021-47360

binder: make sure fd closes complete

State
Published
Severity
Not scored
Published
May 21, 2024
Updated
May 23, 2026
Reserved
May 21, 2024

Read the record on cve.org

Description

In the Linux kernel, the following vulnerability has been resolved:

binder: make sure fd closes complete

During BC_FREE_BUFFER processing, the BINDER_TYPE_FDA object cleanup may close 1 or more fds. The close operations are completed using the task work mechanism -- which means the thread needs to return to userspace or the file object may never be dereferenced -- which can lead to hung processes.

Force the binder thread back to userspace if an fd is closed during BC_FREE_BUFFER handling.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 80cd795630d6526ba729a089a435bf74a57af927 to before aa2c274c279ff365a06a4cba263f04965895166eAffected
  • 80cd795630d6526ba729a089a435bf74a57af927 to before d5b0473707fa53b03a5db0256ce62b2874bddbc7Affected
  • 80cd795630d6526ba729a089a435bf74a57af927 to before b95483d8d94b41fa31a84c1d86710b7907a37621Affected
  • 80cd795630d6526ba729a089a435bf74a57af927 to before 5fdb55c1ac9585eb23bb2541d5819224429e103dAffected
  • 27564d8d5d12d2ff197055346069c6bdbe08a8c2Affected
  • 4.20.1 to before 4.21Affected
LinuxLinux
  • 5.0Affected
  • before 5.0Not affected
  • 5.4.150 through 5.4.*Not affected
  • 5.10.70 through 5.10.*Not affected
  • 5.14.9 through 5.14.*Not affected
  • 5.15 and laterNot affected

References

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