CVE-2023-53402

Summary

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

kernel/printk/index.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
LinuxLinux337015573718b161891a3473d25f59273f2e626b < 2e07fa2e30d48d24a791483774a3d4b76769e0cfaffected
LinuxLinux337015573718b161891a3473d25f59273f2e626b < c578a68ffcdc2e8c72556bebdaae2b7500398e81affected
LinuxLinux337015573718b161891a3473d25f59273f2e626b < 13969236b6900b5a3625ad2193569588e978f1ccaffected
LinuxLinux337015573718b161891a3473d25f59273f2e626b < 55bf243c514553e907efcf2bda92ba090eca8c64affected
LinuxLinux5.15affected
LinuxLinux0 < 5.15unaffected
LinuxLinux5.15.100 <= 5.15.*unaffected
LinuxLinux6.1.18 <= 6.1.*unaffected
LinuxLinux6.2.5 <= 6.2.*unaffected
LinuxLinux6.3 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

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

References