CVE-2023-52936

Summary

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

kernel/irq/irqdomain.c: fix memory leak with using debugfs_lookup()

When calling debugfs_lookup() the result must have dput() called on it, otherwise the memory will leak over time. To make things simpler, just call debugfs_lookup_and_remove() instead which handles all of the logic at once.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux69dd4503a7e6bae3389b8e028e5768008be8f2d7 < 066ecbf1a53eb0b92b10c8df7808666be6ea5681affected
LinuxLinux69dd4503a7e6bae3389b8e028e5768008be8f2d7 < cf1c917bf1c761a557b26410024e90057646c049affected
LinuxLinux69dd4503a7e6bae3389b8e028e5768008be8f2d7 < d83d7ed260283560700d4034a80baad46620481baffected
LinuxLinux5.12affected
LinuxLinux0 < 5.12unaffected
LinuxLinux5.15.93 <= 5.15.*unaffected
LinuxLinux6.1.11 <= 6.1.*unaffected
LinuxLinux6.2 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

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

References