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libmagic: ignore kernel pointers on MINIX3

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Change-Id: I8830cab3d6637bae6141dc2b0e209d319703787f
This commit is contained in:
David van Moolenbroek 2015-08-10 15:45:35 +02:00
parent 1aad172900
commit c8f6986185
1 changed files with 5 additions and 0 deletions
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5
minix/llvm/static/magic/magic_st.c
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@ -630,6 +630,11 @@ PRIVATE INLINE int transfer_ptr_sel_cb(_magic_selement_t *selement, _magic_sel_a
return MAGIC_SENTRY_ANALYZE_SKIP_PATH; return MAGIC_SENTRY_ANALYZE_SKIP_PATH;
} }
} }
#ifdef __MINIX
#define IS_KERNEL_PTR(p) (((intptr_t)(p) & 0xf0000000) == 0xf0000000) /* TODO: make this more dynamic */
else if (IS_KERNEL_PTR(sel_analyzed->u.ptr.value))
return MAGIC_SENTRY_ANALYZE_SKIP_PATH; /* Kernel-mapped pointer */
#endif
/* Pointer with violations found */ /* Pointer with violations found */
ST_CB_PRINT(ST_CB_ERR, "uncaught ptr with violations", selement, sel_analyzed, sel_stats, cb_info); ST_CB_PRINT(ST_CB_ERR, "uncaught ptr with violations", selement, sel_analyzed, sel_stats, cb_info);