CVE-2022-50411

Summary

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

ACPICA: Fix error code path in acpi_ds_call_control_method()

A use-after-free in acpi_ps_parse_aml() after a failing invocaion of acpi_ds_call_control_method() is reported by KASAN [1] and code inspection reveals that next_walk_state pushed to the thread by acpi_ds_create_walk_state() is freed on errors, but it is not popped from the thread beforehand. Thus acpi_ds_get_current_walk_state() called by acpi_ps_parse_aml() subsequently returns it as the new walk state which is incorrect.

To address this, make acpi_ds_call_control_method() call acpi_ds_pop_walk_state() to pop next_walk_state from the thread before returning an error.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 38e251d356a01b61a86cb35213cafd7e8fe7090caffected
LinuxLinux1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < f520d181477ec29a496c0b3bbfbdb7e2606c2713affected
LinuxLinux1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 2deb42c4f9776e59bee247c14af9c5e8c05ca9a6affected
LinuxLinux1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 9ef353c92f9d04c88de3af1a46859c1fb76db0f8affected
LinuxLinux1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < b0b83d3f3ffa96e8395c56b83d6197e184902a34affected
LinuxLinux1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 5777432ebaaf797e24f059979b42df3139967163affected
LinuxLinux1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 0462fec709d51762ba486245bc344f44cc6cfa97affected
LinuxLinux1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 799881db3e03b5e98fe6a900d9d7de8c7d61e7eeaffected
LinuxLinux1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 404ec60438add1afadaffaed34bb5fe4ddcadd40affected
LinuxLinux2.6.12affected
LinuxLinux0 < 2.6.12unaffected
LinuxLinux4.9.337 <= 4.9.*unaffected
LinuxLinux4.14.303 <= 4.14.*unaffected
LinuxLinux4.19.270 <= 4.19.*unaffected
LinuxLinux5.4.229 <= 5.4.*unaffected
LinuxLinux5.10.163 <= 5.10.*unaffected
LinuxLinux5.15.86 <= 5.15.*unaffected
LinuxLinux6.0.16 <= 6.0.*unaffected
LinuxLinux6.1.2 <= 6.1.*unaffected
LinuxLinux6.2 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

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

References