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packaging: fix fuzzer (#9882) 

Catch an exception thrown by the code and remove invalid operators.

Fixes: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=56761

Signed-off-by: David Korczynski <david@adalogics.com>
This commit is contained in:
DavidKorczynski 2023-03-07 15:52:44 +00:00 committed by GitHub
parent 438cbfcf69
commit c279d13834
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 18 additions and 17 deletions
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35
projects/packaging/fuzz_packaging.py
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@ -16,28 +16,28 @@
import sys
import atheris
from packaging.utils import (
canonicalize_version,
parse_wheel_filename,
parse_sdist_filename,
InvalidSdistFilename,
InvalidWheelFilename
)
from packaging.utils import (canonicalize_version, parse_wheel_filename,
parse_sdist_filename, InvalidSdistFilename,
InvalidWheelFilename)
from packaging.specifiers import InvalidSpecifier, Specifier
from packaging.version import InvalidVersion
def fuzz_utils(data):
"""Logic to hit routines in src/packaging/utils."""
fdp = atheris.FuzzedDataProvider(data)
canonicalize_version(fdp.ConsumeUnicodeNoSurrogates(fdp.ConsumeIntInRange(0, 1024)))
canonicalize_version(
fdp.ConsumeUnicodeNoSurrogates(fdp.ConsumeIntInRange(0, 1024)))
try:
parse_sdist_filename(fdp.ConsumeUnicodeNoSurrogates(fdp.ConsumeIntInRange(0, 1024)))
parse_sdist_filename(
fdp.ConsumeUnicodeNoSurrogates(fdp.ConsumeIntInRange(0, 1024)))
except InvalidSdistFilename:
pass
try:
parse_wheel_filename(fdp.ConsumeUnicodeNoSurrogates(fdp.ConsumeIntInRange(0, 1024)))
parse_wheel_filename(
fdp.ConsumeUnicodeNoSurrogates(fdp.ConsumeIntInRange(0, 1024)))
except InvalidWheelFilename:
pass
@ -46,18 +46,19 @@ def fuzz_specifier(data):
"""Logic to hit routines in src/packaging/specifiers."""
fdp = atheris.FuzzedDataProvider(data)
try:
spec1 = Specifier(fdp.ConsumeUnicodeNoSurrogates(fdp.ConsumeIntInRange(0, 1024)))
spec2 = Specifier(fdp.ConsumeUnicodeNoSurrogates(fdp.ConsumeIntInRange(0, 1024)))
spec1 = Specifier(
fdp.ConsumeUnicodeNoSurrogates(fdp.ConsumeIntInRange(0, 1024)))
spec2 = Specifier(
fdp.ConsumeUnicodeNoSurrogates(fdp.ConsumeIntInRange(0, 1024)))
except InvalidSpecifier:
return
b1 = spec1 == spec2
b2 = spec1 != spec2
b3 = spec1 <= spec2
b4 = spec1 >= spec2
b5 = spec1 < spec2
b6 = spec1 > spec2
b7 = spec1.constains(fdp.ConsumeUnicodeNoSurrogates(24))
try:
b7 = spec1.contains(fdp.ConsumeUnicodeNoSurrogates(24))
except InvalidVersion:
pass
def TestOneInput(data):