Date: Thu, 20 Aug 2015 12:13:18 +0800 From: Kai Zhao <loverszhao@...il.com> To: john-dev@...ts.openwall.com Subject: Re: --test-full=0 crashes the Bitcoin format On Thu, Aug 20, 2015 at 12:11 PM, Kai Zhao <loverszhao@...il.com> wrote: > On Thu, Aug 20, 2015 at 3:54 AM, magnum <john.magnum@...hmail.com> wrote: >> On 2015-08-06 18:38, Solar Designer wrote: >>> >>> Kai, magnum - >>> >>> Flag bugs aside, this feature as committed to magnum's jumbo triggers >>> memory corruption: >>> >>> [solar@...er run]$ ./john --test-full=0 >>> [...] >>> Testing: asa-md5, Cisco ASA [Cisco ASA (MD5 salted) 128/128 AVX 4x3]... >>> PASS >>> Testing: bfegg, Eggdrop [Blowfish 32/64]... (32xOMP) PASS >>> Testing: Bitcoin [SHA512 AES 128/128 AVX 2x]... (32xOMP) *** glibc >>> detected *** ./john: double free or corruption (!prev): 0x000000000224a770 >>> *** >> >> >> I replaced the EVP stuff in bitcoin with our own aes.h stuff in 0e2beec and >> have yet to trigger the bug since. Perhaps Kai can test it some more. >> >> If we do get some variant of the problem again (I doubt it), it'll likely be >> easier to debug and/or detected by ASan. >> >> I'll open an issue for finding more uses of EVP and/or BIO that we can get >> rid of. High-level stuff and abstraction layers are often Bad Ideas[tm] in >> high-performance code anyway. >> > > I have run "./john --test-full=0 --format=bitcoin" about 500 times and > it did crash. > I think this bug is fixed. Thanks. > Sorry. "it did crash" -> "it did not crash" I have run "./john --test-full=0 --format=bitcoin" about 500 times and it did not crash. I think this bug is fixed. Thanks, Kai
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