CVE-2021-47403

Summary

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

ipack: ipoctal: fix module reference leak

A reference to the carrier module was taken on every open but was only released once when the final reference to the tty struct was dropped.

Fix this by taking the module reference and initialising the tty driver data when installing the tty.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux82a82340bab6c251e0705339f60763718eaa2a22 < 31398849b84ebae0d43a1cf379cb9895597f221aaffected
LinuxLinux82a82340bab6c251e0705339f60763718eaa2a22 < c0adb5a947dec6cff7050ec56d78ecd3916f9ce6affected
LinuxLinux82a82340bab6c251e0705339f60763718eaa2a22 < dde4c1429b97383689f755ce92b4ed1e84a9c92baffected
LinuxLinux82a82340bab6c251e0705339f60763718eaa2a22 < 9c5b77a7ffc983b2429ce158b50497c5d3c86a69affected
LinuxLinux82a82340bab6c251e0705339f60763718eaa2a22 < 3253c87e1e5bc0107aab773af2f135ebccf38666affected
LinuxLinux82a82340bab6c251e0705339f60763718eaa2a22 < 7cea848678470daadbfdaa6a112b823c290f900caffected
LinuxLinux82a82340bab6c251e0705339f60763718eaa2a22 < 811178f296b16af30264def74c8d2179a72d5562affected
LinuxLinux82a82340bab6c251e0705339f60763718eaa2a22 < bb8a4fcb2136508224c596a7e665bdba1d7c3c27affected
LinuxLinux3.18affected
LinuxLinux0 < 3.18unaffected
LinuxLinux4.4.286 <= 4.4.*unaffected
LinuxLinux4.9.285 <= 4.9.*unaffected
LinuxLinux4.14.249 <= 4.14.*unaffected
LinuxLinux4.19.209 <= 4.19.*unaffected
LinuxLinux5.4.151 <= 5.4.*unaffected
LinuxLinux5.10.71 <= 5.10.*unaffected
LinuxLinux5.14.10 <= 5.14.*unaffected
LinuxLinux5.15 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

CVE Program Container

Additional References

References