🍒 [Sanitizers][Darwin] Correct iterating of MachO load commands (#130161) #10473
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…30161) The condition to stop iterating so far was to look for load command cmd field == 0. The iteration would continue past the commands area, and would finally find lc->cmd ==0, if lucky. Or crash with bus error, if out of luck. Correcting this by limiting the number of iterations to the count specified in mach_header(_64) ncmds field. rdar://143903403 --------- Co-authored-by: Mariusz Borsa <[email protected]> (cherry picked from commit 62a6d63)
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@swift-ci test |
cyndyishida
approved these changes
Apr 15, 2025
cyndyishida
deleted the
eng/m_borsa/cherry_pick_macho_commands_iterating
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The condition to stop iterating so far was to look for load command cmd field == 0. The iteration would continue past the commands area, and would finally find lc->cmd ==0, if lucky. Or crash with bus error, if out of luck.
Correcting this by limiting the number of iterations to the count specified in mach_header(_64) ncmds field.
rdar://143903403
Co-authored-by: Mariusz Borsa [email protected]
(cherry picked from commit 62a6d63)