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authorChristian Krinitsin <mail@krinitsin.com>2025-06-30 12:34:26 +0000
committerChristian Krinitsin <mail@krinitsin.com>2025-06-30 12:35:44 +0000
commit25f8033d556aa17afaea4a5196ea7a69fe248320 (patch)
tree0f056db167683be54ea1e5e72d29d6069af55e7d /results/classifier/deepseek-2-tmp/reasoning/assembly/1859713
parent8e6da29e4ee5fc14bc1cc816a24f21271f14090d (diff)
downloademulator-bug-study-25f8033d556aa17afaea4a5196ea7a69fe248320.tar.gz
emulator-bug-study-25f8033d556aa17afaea4a5196ea7a69fe248320.zip
add new temporary deepseek-r1:14b results
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+<think>
+Okay, so I need to classify this bug report about QEMU into one of the given categories. The issue is related to ARM v8.3a's pauth not working correctly. Let me break this down.
+
+First, I remember that ARMv8.3 introduced Pointer Authentication (pauth), which is a security feature for detecting unauthorized modifications to pointers. So the problem here is with how QEMU handles these pointer authentication instructions.
+
+The bug report mentions specific instructions: paciasp and autiasp. PacIASP generates a PAC (Pointer Authentication Code) using a key, and autIASP verifies this code. The test case shows that when an incorrect LR value is provided to autIASP, it still authenticates the signature as valid when it shouldn't.
+
+Looking at the symptoms, the problem seems to be in how QEMU computes or checks these PACs. The user found that certain inputs result in identical top_bit and bottom_bit values, which shouldn't happen. This suggests an issue with how QEMU's pauth computation is handling the bits.
+
+Since this is related to processing ARM-specific instructions (paciasp and autiasp), it's likely a problem within QEMU's translation or emulation of these instructions. Specifically, it might be in the assembly lowering phase, where QEMU converts high-level operations into machine code or handles instruction-specific logic.
+
+Looking at the categories, 'assembly' seems to fit because it's about how QEMU processes and executes ARM instructions. There's no mention of user-mode issues specific to mistranslation, nor is it related to other areas like device, graphic, socket, etc. The issue is purely in handling an assembly instruction correctly.
+
+So, I think the appropriate category here is 'assembly' because the bug lies in how QEMU handles the pointer authentication instructions during their processing.
+</think>
+
+The issue relates to incorrect handling of ARMv8.3a pauth instructions during assembly lowering, indicating a problem in the assembly implementation within QEMU.
+
+**Answer:** assembly
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