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authorChristian Krinitsin <mail@krinitsin.com>2025-07-17 09:10:43 +0200
committerChristian Krinitsin <mail@krinitsin.com>2025-07-17 09:10:43 +0200
commitf2ec263023649e596c5076df32c2d328bc9393d2 (patch)
tree5dd86caab46e552bd2e62bf9c4fb1a7504a44db4 /results/scraper/fex/4589
parent63d2e9d409831aa8582787234cae4741847504b7 (diff)
downloadqemu-analysis-main.tar.gz
qemu-analysis-main.zip
add downloaded fex bug-reports HEAD main
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+pusha/popa family generates incorrect code
+Noticed in https://github.com/FEX-Emu/FEX/pull/4585 that these family of instructions are moving the SP to a temporary register and doing push/pop operations on the temporary and then moving the SP set to the end.
+
+If an async signal landed in the middle of that instruction then Linux async signal handling would corrupt the guest stack since it assumes correct guest SP at all times.
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