CVE-2023-52606

Summary

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

powerpc/lib: Validate size for vector operations

Some of the fp/vmx code in sstep.c assume a certain maximum size for the instructions being emulated. The size of those operations however is determined separately in analyse_instr().

Add a check to validate the assumption on the maximum size of the operations, so as to prevent any unintended kernel stack corruption.

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxc22435a5f3d8f85ea162ae523a6ba60a58521ba5 < 42084a428a139f1a429f597d44621e3a18f3e414affected
LinuxLinuxc22435a5f3d8f85ea162ae523a6ba60a58521ba5 < 0580f4403ad33f379eef865c2a6fe94de37febdfaffected
LinuxLinuxc22435a5f3d8f85ea162ae523a6ba60a58521ba5 < beee482cc4c9a6b1dcffb2e190b4fd8782258678affected
LinuxLinuxc22435a5f3d8f85ea162ae523a6ba60a58521ba5 < de4f5ed63b8a199704d8cdcbf810309d7eb4b36baffected
LinuxLinuxc22435a5f3d8f85ea162ae523a6ba60a58521ba5 < abd26515d4b767ba48241eea77b28ce0872aef3eaffected
LinuxLinuxc22435a5f3d8f85ea162ae523a6ba60a58521ba5 < 28b8ba8eebf26f66d9f2df4ba550b6b3b136082caffected
LinuxLinuxc22435a5f3d8f85ea162ae523a6ba60a58521ba5 < 848e1d7fd710900397e1d0e7584680c1c04e3afdaffected
LinuxLinuxc22435a5f3d8f85ea162ae523a6ba60a58521ba5 < 8f9abaa6d7de0a70fc68acaedce290c1f96e2e59affected
LinuxLinux4.14affected
LinuxLinux0 < 4.14unaffected
LinuxLinux4.19.307 <= 4.19.*unaffected
LinuxLinux5.4.269 <= 5.4.*unaffected
LinuxLinux5.10.210 <= 5.10.*unaffected
LinuxLinux5.15.149 <= 5.15.*unaffected
LinuxLinux6.1.77 <= 6.1.*unaffected
LinuxLinux6.6.16 <= 6.6.*unaffected
LinuxLinux6.7.4 <= 6.7.*unaffected
LinuxLinux6.8 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

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

CVE Program Container

Additional References

References