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Title:	SIG31-C. Do not access shared objects in signal handlers
Author:	Justin Pincar	May 23, 2007
Last Changed by:	Caden Milne	Nov 12, 2024
Tiny Link: (useful for email)	https://wiki.sei.cmu.edu/confluence/x/VdYxBQ
Export As:	Word · PDF

Android (1)     Page: Applicable in Principle to Android (C Rules/Recomendations)

SEI CERT C Coding Standard (4)     Page: ERR32-C. Do not rely on indeterminate values of errno     Page: DCL22-C. Use volatile for data that cannot be cached     Page: SIG02-C. Avoid using signals to implement normal functionality     Page: CC. Undefined Behavior

SEI CERT C++ Coding Standard (1)     Page: MSC54-CPP. A signal handler must be a plain old function

Parent Page     Page: Rule 11. Signals (SIG)

• asynchronous
• compass/rose
• sample
• ptc
• rose-partial
• rule
• sig
• in-cpp

Time	Editor
Nov 12, 2024 08:55	Caden Milne	View Changes
Updated references from C11->C23
Oct 08, 2024 13:49	Admin	View Changes
Sep 14, 2024 08:52	Swasti Shrivastava	View Changes
Apr 20, 2023 05:29	Jill Britton	View Changes
Apr 23, 2021 04:54	Jill Britton

External Links (13)
    https://www.mathworks.com/help/bugfinder/ref/certcrulesig31…
    https://wiki.sei.cmu.edu/confluence/display/c/How+this+Codi…
    https://wiki.sei.cmu.edu/confluence/pages/viewpage.action?p…
    https://cwe.mitre.org/data/index.html
    https://wiki.sei.cmu.edu/confluence/pages/viewpage.action?p…
    https://wiki.sei.cmu.edu/confluence/pages/viewpage.action?p…
    cwe.mitre.org/data/definitions/662.html
    https://wiki.sei.cmu.edu/confluence/display/c/Polyspace+Bug…
    https://wiki.sei.cmu.edu/confluence/pages/viewpage.action?p…
    https://www.kb.cert.org/vulnotes/bymetric?searchview&query=…
    https://cwe.mitre.org/data/definitions/828.html
    https://wiki.sei.cmu.edu/confluence/display/c/Cppcheck+Prem…
    https://wiki.sei.cmu.edu/confluence/display/c/AA.+Bibliogra…

SEI CERT C Coding Standard (24)     Page: Parasoft     Page: RuleChecker     Page: Axivion Bauhaus Suite_V     Page: RuleChecker_V     Page: CodeSonar_V     Page: LDRA     Home page: SEI CERT C Coding Standard     Page: CC. Undefined Behavior     Page: Astrée     Page: Helix QAC_V     Page: Astrée_V     Page: SIG30-C. Call only asynchronous-safe functions within signal handlers     Page: Parasoft_V     Page: DCL22-C. Use volatile for data that cannot be cached     Page: BB. Definitions     Page: CodeSonar     Page: AA. Bibliography     Page: Helix QAC     Page: PC-lint Plus     Page: PC-lint Plus_V     Page: Polyspace Bug Finder_V     Page: Axivion Bauhaus Suite     Page: LDRA_V     Page: Rose