On 1/22/24 23:54, Pedro Falcato wrote:
Hi! Where did you get that linker script? FWIW, I catched this possible issue in review, and this was already discussed (see my email and Eric's reply): https://lore.kernel.org/all/CAKbZUD3E2if8Sncy+M2YKncc_Zh08-86W6U5wR0ZMazShxbHHA@xxxxxxxxxxxxxx/ This was my original testcase (https://github.com/heatd/elf-bug-questionmark), which convinced the loader to map .data over a cleared .bss. Your bug seems similar, but does the inverse: maps .bss over .data.
I wrote the linker script myself from scratch. Thank you for the link to the previous discussion. So assuming this breakage was intended my question here is - doesn't this run afoul of the "we do not break userspace" rule?
