exec: add extra validation for submount sources #4604
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While submount paths were already validated there are some cases where the parent mount may not be immutable while the submount is created. Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com> (cherry picked from commit 2529ec4121bcd8c35bcd96218083da175c2e5b77)
AkihiroSuda
approved these changes
Jan 31, 2024
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While submount paths were already validated there are some cases where the parent mount may not be immutable while the submount is created.
Fix for GHSA-m3r6-h7wv-7xxv
Signed-off-by: Tonis Tiigi tonistiigi@gmail.com
(cherry picked from commit 2529ec4121bcd8c35bcd96218083da175c2e5b77)