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authorChristian Krinitsin <mail@krinitsin.com>2025-07-05 20:00:38 +0200
committerChristian Krinitsin <mail@krinitsin.com>2025-07-05 20:00:38 +0200
commit96049c939b1916d80532630d63c14e04d5244f1d (patch)
tree7fb9df428f074078e714f1e038210cdff887185a /results/classifier/user-mode-bugs/1808565
parent40bbb77d4dfebff4f99c2f90b2c0db737b0ecc5a (diff)
downloadqemu-analysis-96049c939b1916d80532630d63c14e04d5244f1d.tar.gz
qemu-analysis-96049c939b1916d80532630d63c14e04d5244f1d.zip
lock user-mode and semantic-bugs
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+Reading /proc/self/task/<pid>/maps is not remapped to the target
+
+Seeing this in qemu-user 3.1.0
+
+The code in is_proc_myself which supports remapping of /proc/self/maps and /proc/<pid>/maps does not support remapping of /proc/self/task/<pid>/maps or /proc/<pid>/task/<pid>/maps. Extending is_proc_myself to cover these cases causes the maps to be rewritten correctly.
+
+These are useful in multithreaded programs to avoid freezing the entire program to capture the maps for a single tid.
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