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.semgrep.yml
author Kim Alvefur <zash@zash.se>
Sat, 02 Apr 2022 16:33:27 +0200
branch0.12
changeset 12450 e54b8a5e35ad
parent 11293 c6965f3c321c
child 12721 898e99f49d80
permissions -rw-r--r--
util.random: Test whether util.crand works before using it (fix #1734) util.crand can be configured at compile time to use the Linux getrandom() system call, available from Linux 3.17, but it is still possible to load it with an older kernel lacking that system call, where attempting to use it throws an ENOSYS error. By testing for this on load we can fall back to /dev/urandom in this case.
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rules:
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- id: log-variable-fmtstring
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  patterns:
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    - pattern: log("...", $A)
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    - pattern-not: log("...", "...")
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  message: Variable passed as format string to logging
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  languages: [lua]
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  severity: ERROR
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- id: module-log-variable-fmtstring
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  patterns:
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    - pattern: module:log("...", $A)
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    - pattern-not: module:log("...", "...")
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  message: Variable passed as format string to logging
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  languages: [lua]
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  severity: ERROR
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- id: module-getopt-string-default
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  patterns:
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    - pattern: module:get_option_string("...", $A)
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    - pattern-not: module:get_option_string("...", "...")
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    - pattern-not: module:get_option_string("...", host)
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    - pattern-not: module:get_option_string("...", module.host)
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  message: Non-string default from :get_option_string
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  severity: ERROR
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  languages: [lua]
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