CVE-2022-48873

Summary

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

misc: fastrpc: Don't remove map on creater_process and device_release

Do not remove the map from the list on error path in fastrpc_init_create_process, instead call fastrpc_map_put, to avoid use-after-free. Do not remove it on fastrpc_device_release either, call fastrpc_map_put instead.

The fastrpc_free_map is the only proper place to remove the map. This is called only after the reference count is 0.

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxb49f6d83e290f17e20f4e5cf31288d3bb4955ea6 < 4b5c44e924a571d0ad07054de549624fbc04e4d7affected
LinuxLinuxb49f6d83e290f17e20f4e5cf31288d3bb4955ea6 < 193cd853145b63e670bd73740250983af1475330affected
LinuxLinuxb49f6d83e290f17e20f4e5cf31288d3bb4955ea6 < 1b7b7bb400dd13dcb03fc6e591bb7ca4664bbec8affected
LinuxLinuxb49f6d83e290f17e20f4e5cf31288d3bb4955ea6 < 35ddd482345c43d9eec1f3406c0f20a95ed4054baffected
LinuxLinuxb49f6d83e290f17e20f4e5cf31288d3bb4955ea6 < 5bb96c8f9268e2fdb0e5321cbc358ee5941efc15affected
LinuxLinuxaaf5aa44934ad069cac805923c49f6968b9a0d49affected
LinuxLinux5.1.6 < 5.2affected
LinuxLinux5.2affected
LinuxLinux0 < 5.2unaffected
LinuxLinux5.4.230 <= 5.4.*unaffected
LinuxLinux5.10.165 <= 5.10.*unaffected
LinuxLinux5.15.90 <= 5.15.*unaffected
LinuxLinux6.1.8 <= 6.1.*unaffected
LinuxLinux6.2 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

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

References