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fix(commander): guard the fixed-size callback arrays in add() - #576
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stijncarelsbergh wants to merge 1 commit into
Open
stijncarelsbergh wants to merge 1 commit into
stijncarelsbergh wants to merge 1 commit into
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call_list/call_ids/call_label hold 20 entries and call_count was never checked, so the 21st add() writes a function pointer, a char and a pointer past the end of the object - out-of-bounds write, memory corruption, symptoms depending on layout.
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fix(commander): guard the fixed-size callback arrays in add()
call_list/call_ids/call_label hold 20 entries and call_count was never checked, so
the 21st add() writes a function pointer, a char and a pointer past the end of the
object - out-of-bounds write, memory corruption, symptoms depending on layout.
Split out of #571 at your request: one fix per PR, against
dev. The branch containsnothing else, so it can be reviewed, amended or dropped on its own.
The CI board matrix runs automatically; I did not run any hardware test, so the behavioural
claims are from reading the code plus the compiler. Happy to adjust the wording, split it
differently or drop it - no attachment to this one.