init/main.c: Fix potential static_command_line memory overflow

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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*()")

Source published

1 May 2024 05:27:39 UTC

Source modified

15 Oct 2026 00:39:43 UTC

Observed here

23 Oct 2026 15:48:27 UTC

Source terms

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