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72a8643304
execute_location() and execute_user_location() intent to copy do_nothing() text and execute it at a new location. However, at the time being it doesn't copy do_nothing() function but do_nothing() function descriptor which still points to the original text. So at the end it still executes do_nothing() at its original location allthough using a copied function descriptor. So, fix that by really copying do_nothing() text and build a new function descriptor by copying do_nothing() function descriptor and updating the target address with the new location. Also fix the displayed addresses by dereferencing do_nothing() function descriptor. Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu> Acked-by: Kees Cook <keescook@chromium.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/4055839683d8d643cd99be121f4767c7c611b970.1644928018.git.christophe.leroy@csgroup.eu |
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| .. | ||
| bugs.c | ||
| cfi.c | ||
| core.c | ||
| fortify.c | ||
| heap.c | ||
| lkdtm.h | ||
| Makefile | ||
| perms.c | ||
| powerpc.c | ||
| refcount.c | ||
| rodata.c | ||
| stackleak.c | ||
| usercopy.c | ||