mark asm stacks non-executable

Signed-off-by: Attila Fülöp <attila@fueloep.org>
openzfs · Dec 21, 2019 · 4c39aad · 4c39aad
1 parent 466d3f3
commit 4c39aad
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diff --git a/module/icp/asm-x86_64/modes/aesni-gcm-x86_64.S b/module/icp/asm-x86_64/modes/aesni-gcm-x86_64.S
@@ -883,4 +883,9 @@ atomic_toggle_boolean_nv:
 .byte	65,69,83,45,78,73,32,71,67,77,32,109,111,100,117,108,101,32,102,111,114,32,120,56,54,95,54,52,44,32,67,82,89,80,84,79,71,65,77,83,32,98,121,32,60,97,112,112,114,111,64,111,112,101,110,115,115,108,46,111,114,103,62,0
 .align	64
 
+/* Mark the stack non-executable. */
+#if defined(__linux__) && defined(__ELF__)
+.section .note.GNU-stack,"",%progbits
+#endif
+
 #endif /* defined(__x86_64__) && defined(HAVE_AVX) */
diff --git a/module/icp/asm-x86_64/modes/ghash-x86_64.S b/module/icp/asm-x86_64/modes/ghash-x86_64.S
@@ -705,4 +705,9 @@ gcm_ghash_avx:
 .byte	71,72,65,83,72,32,102,111,114,32,120,56,54,95,54,52,44,32,67,82,89,80,84,79,71,65,77,83,32,98,121,32,60,97,112,112,114,111,64,111,112,101,110,115,115,108,46,111,114,103,62,0
 .align	64
 
+/* Mark the stack non-executable. */
+#if defined(__linux__) && defined(__ELF__)
+.section .note.GNU-stack,"",%progbits
+#endif
+
 #endif /* defined(__x86_64__) && defined(HAVE_AVX) */