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e2e736cbbd
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7 Commits

Author SHA1 Message Date
Yu Watanabe
029a7f5a0e fuzz: shorten filename of testcase 
Follow-up for 46dc071985 and
76519cecc7.
 2022-12-09 05:01:04 +09:00
Yu Watanabe
b9152f2d63 resolve: optimize conversion of TXT fields to json 
Fixes oss-fuzz#54080 (https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=54080).

Fixes #25654.
 2022-12-09 04:59:49 +09:00
Yu Watanabe
7d34567444 hexdecoct: fix NULL pointer dereferences in hexmem() 
Fixes oss-fuzz#54090 (https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=54090).

Fixes #25655.
 2022-12-09 04:55:47 +09:00
Yu Watanabe
45655e776f hexdecoct: add missing NULL check 
Fixes oss-fuzz#54065 (https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=54065).

Fixes #25650.
 2022-12-09 04:54:43 +09:00
Yu Watanabe
76519cecc7 escape: fix wrong octescape of bad character 
Fixes a bug introduced by 95052df376.

This also makes octescape() support NULL or zero length string.

Fixes [oss-fuzz#54059](https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=54059).

Fixes #25643.
 2022-12-06 12:18:10 +09:00
Evgeny Vereshchagin
49f936cd0a tests: add a file triggering "applying zero offset to null pointer" 
```
../src/basic/hexdecoct.c:66:44: runtime error: applying zero offset to null pointer
    #0 0x7f6022650c44 in hexmem /home/vagrant/systemd/build-fuzzers/../src/basic/hexdecoct.c:66:44
    #1 0x577583 in dns_resource_record_to_string /home/vagrant/systemd/build-fuzzers/../src/resolve/resolved-dns-rr.c:1140:21
    #2 0x563669 in LLVMFuzzerTestOneInput /home/vagrant/systemd/build-fuzzers/../src/resolve/fuzz-resource-record.c:25:39
    #3 0x44d2a1 in fuzzer::Fuzzer::ExecuteCallback(unsigned char const*, unsigned long) (/home/vagrant/systemd/out/fuzz-resource-record+0x44d2a1) (BuildId: 88135c111396e9441a475302ccabd2f9a58c7e89)
    #4 0x42d32f in fuzzer::RunOneTest(fuzzer::Fuzzer*, char const*, unsigned long) (/home/vagrant/systemd/out/fuzz-resource-record+0x42d32f) (BuildId: 88135c111396e9441a475302ccabd2f9a58c7e89)
    #5 0x434920 in fuzzer::FuzzerDriver(int*, char***, int (*)(unsigned char const*, unsigned long)) (/home/vagrant/systemd/out/fuzz-resource-record+0x434920) (BuildId: 88135c111396e9441a475302ccabd2f9a58c7e89)
    #6 0x424006 in main (/home/vagrant/systemd/out/fuzz-resource-record+0x424006) (BuildId: 88135c111396e9441a475302ccabd2f9a58c7e89)
    #7 0x7f602142950f in __libc_start_call_main (/lib64/libc.so.6+0x2950f) (BuildId: 85c438f4ff93e21675ff174371c9c583dca00b2c)
    #8 0x7f60214295c8 in __libc_start_main@GLIBC_2.2.5 (/lib64/libc.so.6+0x295c8) (BuildId: 85c438f4ff93e21675ff174371c9c583dca00b2c)
    #9 0x424044 in _start (/home/vagrant/systemd/out/fuzz-resource-record+0x424044) (BuildId: 88135c111396e9441a475302ccabd2f9a58c7e89)

SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior ../src/basic/hexdecoct.c:66:44 in
```
 2022-11-26 11:57:22 +00:00
Evgeny Vereshchagin
b6e8a4f2b6 tests: add a file triggering crash in type_bitmap_to_json 
It's a follow-up to https://github.com/systemd/systemd/pull/25518
 2022-11-25 19:32:04 +00:00