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Segfault on invalid script #16622
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From simon.woerner@rub.deCreated by simon.woerner@rub.deDear all, the following crash was found by a modified version of the kAFL fuzzer I have attached the crashing input and an ASAN output. Credits: Simon Wörner, Sergej Schumilo, Cornelius Aschermann (all of Best regards, Perl Info
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From simon.woerner@rub.deASAN:SIGSEGV==24883==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000000 (pc 0x0000006380e0 bp 0x000000000000 sp 0x7ffce36fccc0 T0) AddressSanitizer can not provide additional info. |
From @jkeenanOn Thu, 12 Jul 2018 12:15:34 GMT, simon.woerner@rub.de wrote:
Running on a threaded, debugging Perl built at blead (v5.29.2-41-ge47f50f38f) and with this input (as seen in vim): ##### ... I got this result: ##### I believe that confirms the report. Thank you very much. -- |
The RT System itself - Status changed from 'new' to 'open' |
This looks like a stack not refcounted issue, it deparses to:
The |
Migrated from rt.perl.org#133363 (status was 'open')
Searchable as RT133363$
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