CVE-2024-26988

Summary

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

init/main.c: Fix potential static_command_line memory overflow

We allocate memory of size 'xlen + strlen(boot_command_line) + 1' for static_command_line, but the strings copied into static_command_line are extra_command_line and command_line, rather than extra_command_line and boot_command_line.

When strlen(command_line) > strlen(boot_command_line), static_command_line will overflow.

This patch just recovers strlen(command_line) which was miss-consolidated with strlen(boot_command_line) in the commit f5c7310ac73e ("init/main: add checks for the return value of memblock_alloc*()")

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxf5c7310ac73ea270e3a1acdb73d1b4817f11fd67 < 2ef607ea103616aec0289f1b65d103d499fa903aaffected
LinuxLinuxf5c7310ac73ea270e3a1acdb73d1b4817f11fd67 < 0dc727a4e05400205358a22c3d01ccad2c8e1fe4affected
LinuxLinuxf5c7310ac73ea270e3a1acdb73d1b4817f11fd67 < 76c2f4d426a5358fced5d5990744d46f10a4cceaaffected
LinuxLinuxf5c7310ac73ea270e3a1acdb73d1b4817f11fd67 < 81cf85ae4f2dd5fa3e43021782aa72c4c85558e8affected
LinuxLinuxf5c7310ac73ea270e3a1acdb73d1b4817f11fd67 < 936a02b5a9630c5beb0353c3085cc49d86c57034affected
LinuxLinuxf5c7310ac73ea270e3a1acdb73d1b4817f11fd67 < 46dad3c1e57897ab9228332f03e1c14798d2d3b9affected
LinuxLinux5.1affected
LinuxLinux0 < 5.1unaffected
LinuxLinux5.10.216 <= 5.10.*unaffected
LinuxLinux5.15.157 <= 5.15.*unaffected
LinuxLinux6.1.88 <= 6.1.*unaffected
LinuxLinux6.6.29 <= 6.6.*unaffected
LinuxLinux6.8.8 <= 6.8.*unaffected
LinuxLinux6.9 <= *unaffected

Weaknesses

ADP Enrichment

CVE Program Container

Additional References

CISA ADP Vulnrichment

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

Additional References

References