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Kernel: Move process coredump metadata modification to the prctl syscall

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Liav A 2023-03-01 21:28:51 +02:00 • committed by Andreas Kling
parent 822164a686
commit be1d7c325a
8 changed files with 17 additions and 38 deletions
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15
Kernel/Syscalls/prctl.cpp
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@ -25,7 +25,7 @@ ErrorOr<FlatPtr> Process::sys$prctl(int option, FlatPtr arg1, [[maybe_unused]] F
return address_space().with([&](auto& space) -> ErrorOr<FlatPtr> {
return space->enforces_syscall_regions();
});
case PR_SET_NO_NEW_SYSCALL_REGION_ANNOTATIONS:
case PR_SET_NO_NEW_SYSCALL_REGION_ANNOTATIONS: {
if (arg1 != 0 && arg1 != 1)
return EINVAL;
bool prohibit_new_annotated_syscall_regions = (arg1 == 1);
@ -38,6 +38,19 @@ ErrorOr<FlatPtr> Process::sys$prctl(int option, FlatPtr arg1, [[maybe_unused]] F
});
return 0;
}
case PR_SET_COREDUMP_METADATA_VALUE: {
auto params = TRY(copy_typed_from_user<Syscall::SC_set_coredump_metadata_params>(arg1));
if (params.key.length == 0 || params.key.length > 16 * KiB)
return EINVAL;
if (params.value.length > 16 * KiB)
return EINVAL;
auto key = TRY(try_copy_kstring_from_user(params.key));
auto value = TRY(try_copy_kstring_from_user(params.value));
TRY(set_coredump_property(move(key), move(value)));
return 0;
}
}
return EINVAL;
});
}