Page Information

Title:	POS35-C. Avoid race conditions while checking for the existence of a symbolic link
Author:	Robert Seacord	Mar 08, 2007
Last Changed by:	David Svoboda	May 06, 2025
Tiny Link: (useful for email)	https://wiki.sei.cmu.edu/confluence/x/0tUxBQ
Export As:	Word · PDF

SEI CERT C Coding Standard (2)     Page: POS01-C. Check for the existence of links when dealing with files     Page: FIO32-C. Do not perform operations on devices that are only appropriate for files

Android (1)     Page: Unknown Applicability (C Rules/Recomendations)

Parent Page     Page: Rule 50. POSIX (POS)

• compass/rose
• android-unknown
• rose-partial
• opening-files
• rule
• pos
• cwe-362

Time	Editor
May 06, 2025 10:37	David Svoboda	View Changes
May 05, 2025 09:50	Caden Milne	View Changes
REM Cost Reform
Nov 19, 2024 08:42	Caden Milne	View Changes
Updated references from C11->C23
Aug 22, 2024 07:06	Joerg Herter	View Changes
Jan 18, 2023 12:20	Jill Britton

External Links (13)
    https://www.securecoding.cert.org/confluence/display/seccod…
    https://www.mathworks.com/help/bugfinder/ref/certcrulepos35…
    https://wiki.sei.cmu.edu/confluence/pages/viewpage.action?p…
    https://www.kb.cert.org/vulnotes/bymetric?searchview&query=…
    www.opengroup.org/onlinepubs/009695399/functions/open.html
    https://wiki.sei.cmu.edu/confluence/display/c/How+this+Codi…
    cwe.mitre.org/data/definitions/363.html
    https://cwe.mitre.org/data/index.html
    https://wiki.sei.cmu.edu/confluence/pages/viewpage.action?p…
    www.opengroup.org/onlinepubs/000095399/functions/lstat.html
    https://wiki.sei.cmu.edu/confluence/pages/viewpage.action?p…
    www.opengroup.org/onlinepubs/009695399/functions/fstat.html
    https://wiki.sei.cmu.edu/confluence/pages/viewpage.action?p…

SEI CERT C Coding Standard (20)     Page: Helix QAC_V     Page: FIO45-C. Avoid TOCTOU race conditions while accessing files     Page: Helix QAC     Page: FIO05-C. Identify files using multiple file attributes     Page: Klocwork     Page: Polyspace Bug Finder_V     Page: Axivion Bauhaus Suite_V     Page: Polyspace Bug Finder     Page: AA. Bibliography     Page: Rose     Page: Astrée_V     Home page: SEI CERT C Coding Standard     Page: Axivion Bauhaus Suite     Page: Coverity     Page: Coverity_V     Page: Parasoft     Page: Astrée     Page: FIO01-C. Be careful using functions that use file names for identification     Page: Parasoft_V     Page: Klocwork_V