efi/libstub: Don't parse overlong command lines

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Check if the command line passed in is larger than COMMAND_LINE_SIZE,
and truncate it to the last full argument if so.

Signed-off-by: Arvind Sankar <nivedita@alum.mit.edu>
Link: https://lore.kernel.org/r/20200521002921.69650-1-nivedita@alum.mit.edu
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>

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Arvind Sankar 2020-05-20 20:29:21 -04:00 • committed by Ard Biesheuvel

parent 04b24409b4

commit 80b1bfe1cb

1 changed files with 23 additions and 5 deletions

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drivers/firmware/efi/libstub/efi-stub-helper.c

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