CVE-2021-47609

Summary

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

firmware: arm_scpi: Fix string overflow in SCPI genpd driver

Without the bound checks for scpi_pd->name, it could result in the buffer overflow when copying the SCPI device name from the corresponding device tree node as the name string is set at maximum size of 30.

Let us fix it by using devm_kasprintf so that the string buffer is allocated dynamically.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux8bec4337ad4023b26de35d3b0c3a3b2735ffc5c7 < 639901b9429a3195e0fead981ed74b51f5f31538affected
LinuxLinux8bec4337ad4023b26de35d3b0c3a3b2735ffc5c7 < 4694b1ec425a2d20d6f8ca3db594829fdf5f2672affected
LinuxLinux8bec4337ad4023b26de35d3b0c3a3b2735ffc5c7 < 7e8645ca2c0046f7cd2f0f7d569fc036c8abaedbaffected
LinuxLinux8bec4337ad4023b26de35d3b0c3a3b2735ffc5c7 < 802a1a8501563714a5fe8824f4ed27fec04a0719affected
LinuxLinux8bec4337ad4023b26de35d3b0c3a3b2735ffc5c7 < f0f484714f35d24ffa0ecb4afe3df1c5b225411daffected
LinuxLinux8bec4337ad4023b26de35d3b0c3a3b2735ffc5c7 < 976389cbb16cee46847e5d06250a3a0b5506781eaffected
LinuxLinux8bec4337ad4023b26de35d3b0c3a3b2735ffc5c7 < 865ed67ab955428b9aa771d8b4f1e4fb7fd08945affected
LinuxLinux4.8affected
LinuxLinux0 < 4.8unaffected
LinuxLinux4.9.294 <= 4.9.*unaffected
LinuxLinux4.14.259 <= 4.14.*unaffected
LinuxLinux4.19.222 <= 4.19.*unaffected
LinuxLinux5.4.168 <= 5.4.*unaffected
LinuxLinux5.10.88 <= 5.10.*unaffected
LinuxLinux5.15.11 <= 5.15.*unaffected
LinuxLinux5.16 <= *unaffected

Weaknesses

ADP Enrichment

CVE Program Container

Additional References

CISA ADP Vulnrichment

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

References