[Bug sanitizer/98669] SIGSEGV on pc=0 in crypt() with -fsanitize=address

[asn at samba dot org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98669

Andreas Schneider <asn at samba dot org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |asn at samba dot org

--- Comment #14 from Andreas Schneider <asn at samba dot org> ---
I've run into this with a python script:

==9542==AddressSanitizer: failed to intercept 'crypt'
==9542==AddressSanitizer: failed to intercept 'crypt_r'

[..]

AddressSanitizer:DEADLYSIGNAL
=================================================================
==29768==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000000 (pc
0x000000000000 bp 0x7ffcec4bf3c0 sp 0x7ffcec4beb58 T0)
==29768==Hint: pc points to the zero page.
==29768==The signal is caused by a READ memory access.
==29768==Hint: address points to the zero page.
    #0 0x0  (<unknown module>)
    #1 0x7f052cca4129 in crypt_crypt_impl
/usr/src/debug/python310-core-3.10.6-3.1.x86_64/Modules/_cryptmodule.c:44

In case someone runs into this as well. You can fix it by preloading
libcrypt.so.1!