[Mono-bugs] [Bug 561745] New: [verifier] SIGSEGV in verify_type_compatibility_full on a bad assembly

bugzilla_noreply at novell.com bugzilla_noreply at novell.com
Tue Dec 8 16:13:17 EST 2009


http://bugzilla.novell.com/show_bug.cgi?id=561745

http://bugzilla.novell.com/show_bug.cgi?id=561745#c0


           Summary: [verifier] SIGSEGV in verify_type_compatibility_full
                    on a bad assembly
    Classification: Mono
           Product: Mono: Runtime
           Version: 2.6.x
          Platform: Other
        OS/Version: Other
            Status: NEW
          Severity: Normal
          Priority: P5 - None
         Component: verifier
        AssignedTo: rkumpera at novell.com
        ReportedBy: spouliot at novell.com
         QAContact: mono-bugs at lists.ximian.com
          Found By: ---
           Blocker: ---


Created an attachment (id=331639)
 --> (http://bugzilla.novell.com/attachment.cgi?id=331639)
assembly to reproduce crash

MONO_PATH=/opt/mono/lib/moonlight/plugin/ gdb --args mono --security=core-clr
--compile-all System.sigabrt.15456.dll

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x4075d950 (LWP 28200)]
0x0000000000582668 in verify_type_compatibility_full (ctx=0x4075b8b0,
target=0x0, candidate=0x9d8600, strict=0) at verify.c:2536
2536        switch (target->type) {
(gdb) bt
#0  0x0000000000582668 in verify_type_compatibility_full (ctx=0x4075b8b0,
target=0x0, candidate=0x9d8600, strict=0) at verify.c:2536
#1  0x00000000005832fd in verify_stack_type_compatibility_full (ctx=0x4075b8b0,
type=0xa750e8, stack=0xa70038, drop_byref=0, valuetype_must_be_boxed=0)
    at verify.c:2767
#2  0x0000000000583335 in verify_stack_type_compatibility (ctx=0x4075b8b0,
type=0xa750e8, stack=0xa70038) at verify.c:2773
#3  0x0000000000586520 in do_invoke_method (ctx=0x4075b8b0,
method_token=100663792, virtual=0) at verify.c:3410
#4  0x0000000000591fa8 in mono_method_verify (method=0xa74f78, level=48) at
verify.c:5400
#5  0x00000000005956bf in mono_method_verify_with_current_settings
(method=0xa74f78, skip_visibility=0) at verify.c:6074
#6  0x000000000041a985 in mini_method_verify (cfg=0xa34200, method=0xa74f78) at
mini.c:1248
#7  0x00000000004510bf in mono_method_to_ir (cfg=0xa34200, method=0xa74f78,
start_bblock=0x0, end_bblock=0x0, return_var=0x0, dont_inline=0x0,
inline_args=0x0, 
    inline_offset=0, is_virtual_call=0) at method-to-ir.c:5403
#8  0x000000000041f790 in mini_method_compile (method=0xa74f78, opts=55667199,
domain=0x7f7f4aaaddb0, run_cctors=0, compile_aot=0, parts=0) at mini.c:3401
#9  0x00000000004a381a in compile_all_methods_thread_main (args=0x7fff52c1b790)
at driver.c:881
#10 0x00000000005aea8a in start_wrapper (data=0xa274b0) at threads.c:662
#11 0x00000000006579c3 in thread_start_routine (args=0x9fab10) at
wthreads.c:286
#12 0x0000000000670bde in GC_start_routine (arg=0x7f7f4aaaee70) at
pthread_support.c:1390
#13 0x00007f7f49ced040 in start_thread () from /lib64/libpthread.so.0
#14 0x00007f7f4980a08d in clone () from /lib64/libc.so.6
#15 0x0000000000000000 in ?? ()
(gdb) p target
$1 = (MonoType *) 0x0
(gdb)

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