add 18th iteration of classifier

1 files changed, 735 insertions, 0 deletions

diff --git a/results/classifier/118/all/1880326 b/results/classifier/118/all/1880326
new file mode 100644
index 000000000..a0119b3a9
--- /dev/null
+++ b/results/classifier/118/all/1880326
@@ -0,0 +1,735 @@
+peripherals: 0.941
+permissions: 0.931
+graphic: 0.929
+arm: 0.918
+TCG: 0.913
+semantic: 0.913
+hypervisor: 0.911
+performance: 0.910
+assembly: 0.899
+device: 0.896
+PID: 0.895
+VMM: 0.893
+debug: 0.888
+architecture: 0.885
+risc-v: 0.884
+virtual: 0.881
+ppc: 0.878
+boot: 0.876
+mistranslation: 0.870
+user-level: 0.868
+kernel: 0.849
+files: 0.837
+KVM: 0.831
+register: 0.815
+vnc: 0.804
+x86: 0.795
+i386: 0.774
+socket: 0.726
+network: 0.716
+
+memory writes make artist_rop8() crash
+
+As of commit d19f1ab0, LLVM libFuzzer found:
+
+=================================================================
+==6814==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x7fd89f97bd5a at pc 0x55dc44594db5 bp 0x7ffd6f461b40 sp 0x7ffd6f461b38
+READ of size 1 at 0x7fd89f97bd5a thread T0
+    #0 0x55dc44594db4 in artist_rop8
+    #1 0x55dc44595fd9 in draw_line
+    #2 0x55dc445937e4 in draw_line_size
+    #3 0x55dc4458ee9d in artist_reg_write
+    #4 0x55dc43f77ba7 in memory_region_write_accessor
+    #5 0x55dc43f775b8 in access_with_adjusted_size
+    #6 0x55dc43f762b3 in memory_region_dispatch_write
+    #7 0x55dc43dbb322 in flatview_write_continue
+    #8 0x55dc43dab2e2 in flatview_write
+    #9 0x55dc43daae14 in address_space_write
+
+0x7fd89f97bd5a is located 1122 bytes to the right of 16777464-byte region [0x7fd89e97b800,0x7fd89f97b8f8)
+allocated by thread T0 here:
+    #0 0x55dc43d87abf in operator new(unsigned long)
+    #1 0x55dc43c4274d in fuzzer::FuzzerDriver(int*, char***, int (*)(unsigned char const*, unsigned long))
+    #2 0x55dc43c3a526 in main (qemu-fuzz-hppa+0x982526)
+    #3 0x7fd8d05edf42 in __libc_start_main (/lib64/libc.so.6+0x23f42)
+
+SUMMARY: AddressSanitizer: heap-buffer-overflow (qemu-fuzz-hppa+0x12dcdb4) in artist_rop8
+Shadow bytes around the buggy address:
+  0x0ffb93f27750: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
+  0x0ffb93f27760: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
+  0x0ffb93f27770: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
+  0x0ffb93f27780: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
+  0x0ffb93f27790: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
+=>0x0ffb93f277a0: fa fa fa fa fa fa fa fa fa fa fa[fa]fa fa fa fa
+  0x0ffb93f277b0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
+  0x0ffb93f277c0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
+  0x0ffb93f277d0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
+  0x0ffb93f277e0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
+  0x0ffb93f277f0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
+Shadow byte legend (one shadow byte represents 8 application bytes):
+  Addressable:           00
+  Partially addressable: 01 02 03 04 05 06 07 
+  Heap left redzone:       fa
+  Freed heap region:       fd
+  Stack left redzone:      f1
+  Stack mid redzone:       f2
+  Stack right redzone:     f3
+  Stack after return:      f5
+  Stack use after scope:   f8
+  Global redzone:          f9
+  Global init order:       f6
+  Poisoned by user:        f7
+  Container overflow:      fc
+  Array cookie:            ac
+  Intra object redzone:    bb
+  ASan internal:           fe
+  Left alloca redzone:     ca
+  Right alloca redzone:    cb
+  Shadow gap:              cc
+==6814==ABORTING
+
+How to reproduce:
+
+qemu-system-hppa -S -qtest stdio -accel qtest -display none < EOF
+writeb 0xf8100081 0x40
+writeb 0xf81000c5 0x40
+writeb 0xf8100e44 0x2b
+writeb 0xf8100e44 0x56
+writeb 0xf8100e44 0x10
+writeb 0xf8100600 0x0
+writeb 0xf8100821 0x21
+writeb 0xf8100b01 0x14
+writew 0xf8100044 0x1245
+writeb 0xf8100a0e 0x50
+writeb 0xf8100a02 0x49
+writeb 0xf8100821 0x0
+writew 0xf8100014 0x0
+writeb 0xf8100e46 0x46
+writeb 0xf8100052 0xe
+writeb 0xf8100621 0x14
+writeb 0xf8100b01 0x14
+writew 0xf8100044 0x1241
+writeb 0xf8100b02 0x25
+writeb 0xf8100b01 0x4
+writeb 0xf8100e46 0xb0
+writeb 0xf8100b02 0x0
+writel 0xf81000c4 0x49494949
+writeb 0xf8100b02 0x10
+writew 0xf8100010 0x11
+writew 0xf8100044 0x1212
+writew 0xf8100044 0x1245
+writew 0xf8100050 0xe2a
+writeb 0xf8100002 0x11
+writeb 0xf8100081 0xec
+writeb 0xf8100081 0xec
+writeb 0xf810030e 0xe
+writeb 0xf810000e 0x44
+writeb 0xf8100000 0xe
+writeb 0xf8100044 0xe
+writeb 0xf8100000 0xe
+writeb 0xf810030e 0x13
+writeb 0xf8100b44 0x2a
+writeb 0xf8100bf8 0x4
+writeb 0xf8100007 0x45
+writeb 0xf81000ff 0xff
+writew 0xf8100044 0xf042
+writew 0xf8100000 0x45
+writew 0xf8100044 0xf042
+writeb 0xf8100000 0xc5
+writeb 0xf81000ff 0xff
+writel 0xf8100044 0x101364ff
+writel 0xf81000c4 0xfba0a0a0
+writeb 0xf8100000 0x2a
+writeb 0xf81000c5 0x40
+writeb 0xf81000ff 0xdf
+writew 0xf8100000 0x4144
+writeb 0xf81000df 0x0
+writew 0xf8100044 0x4400
+writel 0xf8100044 0x101364ff
+writel 0xf81000c4 0xfb490045
+writeb 0xf8100000 0x2a
+writeb 0xf81000c5 0x40
+writel 0xf8100044 0x101364ff
+writel 0xf8100bc4 0x49004545
+writeb 0xf8100000 0x2a
+writeb 0xf81000c5 0x40
+writeb 0xf810000e 0x21
+writeb 0xf8100000 0x2a
+writeb 0xf81000c3 0x40
+writeb 0xf81000ff 0xdf
+writew 0xf8100044 0x1210
+writew 0xf8100044 0x1210
+writew 0xf8100010 0x4412
+writew 0xf8100010 0x4412
+writew 0xf8100044 0x1210
+writew 0xf8100044 0x1210
+writew 0xf8100044 0x1210
+writew 0xf8100000 0x4144
+writew 0xf8100044 0x4400
+writew 0xf8100000 0x4144
+writew 0xf81000bc 0xc100
+writew 0xf8100000 0x4144
+writew 0xf81000bc 0xc100
+writew 0xf8100044 0x1210
+writel 0xf8100044 0xfb53000a
+writew 0xf8100044 0x1210
+writel 0xf8100044 0xfb53000a
+writew 0xf8100044 0x1210
+writel 0xf8100044 0xfba7000a
+writew 0xf8100044 0x1210
+writew 0xf8100044 0x1210
+writew 0xf8100000 0x4144
+writew 0xf8100000 0x4144
+writew 0xf8100000 0x4144
+writew 0xf8100044 0x4400
+writew 0xf8100044 0x4411
+writew 0xf8100044 0x1210
+writew 0xf8100044 0x1210
+writew 0xf8100044 0x1210
+writew 0xf8100044 0x1212
+writew 0xf8100044 0x4445
+writeb 0xf81000ff 0xff
+writeb 0xf8100121 0x14
+writeb 0xf8100121 0x14
+writeb 0xf8100421 0x0
+writeb 0xf8100421 0x28
+writeb 0xf8100000 0x2a
+writeb 0xf81000c5 0x40
+writeb 0xf8100040 0x0
+writeb 0xf8100007 0x45
+writeb 0xf8100007 0x45
+writeb 0xf8100bf8 0x4
+writeb 0xf8100bf8 0x4
+writeb 0xf8100bf8 0x4
+writeb 0xf8100bf8 0x4
+writeb 0xf8100bf8 0x4
+writew 0xf8100060 0x11
+writew 0xf8100060 0x11
+writew 0xf8100060 0x17
+writeb 0xf8100446 0x46
+writeb 0xf8100604 0x50
+writeb 0xf8100821 0x21
+writeb 0xf8100108 0x21
+writeb 0xf810010c 0x21
+writeb 0xf8100081 0xec
+writeb 0xf8100041 0xec
+writel 0xf8100044 0x101364ff
+writel 0xf81000c4 0xfba0a0a0
+writel 0xf8100044 0x101364ff
+writel 0xf81000c4 0xfba0a0a0
+writel 0xf8100044 0x101364ff
+writel 0xf81000c4 0xfba0a0a0
+writeb 0xf8100052 0x24
+writew 0xf8100000 0x4144
+writeb 0xf81000df 0x0
+writew 0xf8100044 0x4400
+writew 0xf8100000 0x4144
+writeb 0xf81000df 0x41
+writeb 0xf8100504 0x50
+writew 0xf8100010 0x4412
+writew 0xf8100010 0x4412
+writew 0xf8100094 0x4145
+writel 0xf8100044 0x10424410
+writel 0xf81000a0 0xa0a0492a
+writel 0xf8100044 0x10040000
+writeb 0xf8100007 0x44
+writeb 0xf81000ff 0xff
+writeb 0xf8100007 0x44
+writeb 0xf81000ff 0x4
+writel 0xf8100044 0x10134900
+writeb 0xf8100000 0x2a
+writeb 0xf81000c5 0x40
+writeb 0xf8100000 0x2a
+writeb 0xf81000c5 0x40
+writew 0xf8100040 0x1212
+writew 0xf8100044 0x1245
+writew 0xf8100040 0x1212
+writew 0xf8100040 0x5002
+writew 0xf8100040 0x5002
+writew 0xf8100040 0x502a
+writeb 0xf8100081 0x40
+writeb 0xf810005d 0x40
+writeb 0xf8100030 0x5d
+writeb 0xf8100e44 0x44
+writeb 0xf8100044 0x3
+writeb 0xf8100044 0x3
+writeb 0xf8100044 0x13
+writew 0xf8100044 0x1210
+writew 0xf8100044 0x1210
+writew 0xf8100044 0x1210
+writew 0xf8100044 0x6d10
+writeb 0xf8100044 0x6d
+writeb 0xf8100000 0x2a
+writeb 0xf8100044 0x40
+writeb 0xf8100045 0xec
+writew 0xf8100044 0x1210
+writew 0xf8100044 0x1245
+writel 0xf8100044 0x101364ff
+writel 0xf81000c4 0xfba0a0a0
+writel 0xf8100044 0x101364ff
+writel 0xf8100044 0x101364ff
+writel 0xf8100044 0x101364ff
+writel 0xf8100008 0xfba0a0a0
+writel 0xf8100044 0x4208fba0
+writew 0xf8100010 0x4412
+writew 0xf8100010 0x4412
+writew 0xf8100010 0x4412
+writew 0xf8100010 0x4412
+writew 0xf8100010 0x4412
+writew 0xf8100000 0x4144
+writeb 0xf810030e 0xe
+writeb 0xf810030e 0xe
+writeb 0xf810032b 0xe
+writeb 0xf810032b 0xe
+writew 0xf8100010 0x4412
+writew 0xf81000ca 0x4441
+writew 0xf8100010 0x4412
+writew 0xf8100010 0x4412
+writew 0xf8100010 0x4412
+writew 0xf8100010 0x4412
+writeb 0xf8100080 0xe
+writeb 0xf8100080 0xd8
+writeb 0xf8100080 0x26
+writeb 0xf8100040 0x80
+writeb 0xf8100040 0x26
+writeb 0xf81000c3 0x40
+writeb 0xf81000ff 0xdf
+writeb 0xf81000c3 0x40
+writeb 0xf81000ff 0xdf
+writew 0xf8100014 0x4000
+writeb 0xf8100000 0xe
+writeb 0xf8100000 0x9e
+writeb 0xf8100000 0x3c
+writeb 0xf8100000 0x3c
+writeb 0xf8100000 0x3c
+writew 0xf8100000 0x4144
+writeb 0xf81000df 0x41
+writeb 0xf8100007 0x45
+writeb 0xf81000ff 0xff
+writeb 0xf8100007 0xb4
+writeb 0xf81000ff 0xff
+writeb 0xf8100007 0xb4
+writeb 0xf8100007 0xb4
+writel 0xf8100044 0x10139c05
+writel 0xf81000c4 0xfba0a0a0
+writeb 0xf8100604 0x50
+writeb 0xf8100021 0xe
+writeb 0xf8100021 0xe
+writeb 0xf8100021 0xe
+writeb 0xf8100021 0x90
+writew 0xf8100010 0x11
+writew 0xf8100010 0x11
+writew 0xf8100010 0x11
+writeb 0xf8100021 0xe
+writeb 0xf8100021 0xe
+writeb 0xf8100021 0xe
+writeb 0xf8100021 0xe
+writeb 0xf8100021 0xe
+writew 0xf8100010 0x4412
+writew 0xf8100010 0x4412
+writew 0xf8100010 0x4412
+writew 0xf8100010 0x4412
+writew 0xf8100010 0x4412
+writeb 0xf8100021 0xe
+writeb 0xf8100021 0xe
+writeb 0xf8100021 0x21
+writeb 0xf8100021 0x21
+writeb 0xf8100000 0x0
+writeb 0xf8100e04 0x46
+EOF
+
+Program terminated with signal SIGSEGV, Segmentation fault.
+#0  0x000056367b2085c0 in artist_rop8 (s=0x56367d38b510, dst=0x7f9f972fffff <error: Cannot access memory at address 0x7f9f972fffff>, val=0 '\000') at hw/display/artist.c:284
+284             *dst &= ~plane_mask;
+(gdb) bt
+#0  0x000056367b2085c0 in artist_rop8 (s=0x56367d38b510, dst=0x7f9f972fffff <error: Cannot access memory at address 0x7f9f972fffff>, val=0 '\000') at hw/display/artist.c:284
+#1  0x000056367b209325 in draw_line (s=0x56367d38b510, x1=-20480, y1=-1, x2=0, y2=17920, update_start=true, skip_pix=-1, max_pix=-1) at hw/display/artist.c:646
+#2  0x000056367b2095a0 in draw_line_size (s=0x56367d38b510, update_start=true) at hw/display/artist.c:696
+#3  0x000056367b20a214 in artist_reg_write (opaque=0x56367d38b510, addr=1052164, val=70, size=1) at hw/display/artist.c:932
+#4  0x000056367b06ea7c in memory_region_write_accessor (mr=0x56367d38ba10, addr=1052164, value=0x7fff112132d8, size=1, shift=0, mask=255, attrs=...) at memory.c:483
+#5  0x000056367b06ec33 in access_with_adjusted_size (addr=1052164, value=0x7fff112132d8, size=1, access_size_min=1, access_size_max=4, access_fn=
+    0x56367b06e999 <memory_region_write_accessor>, mr=0x56367d38ba10, attrs=...) at memory.c:540
+#6  0x000056367b071bb4 in memory_region_dispatch_write (mr=0x56367d38ba10, addr=1052164, data=70, op=MO_8, attrs=...) at memory.c:1477
+#7  0x000056367b00fe33 in flatview_write_continue (fv=0x56367d6f9fa0, addr=4161801732, attrs=..., ptr=0x7fff112134e0, len=1, addr1=1052164, l=1, mr=0x56367d38ba10) at exec.c:3147
+#8  0x000056367b00ff81 in flatview_write (fv=0x56367d6f9fa0, addr=4161801732, attrs=..., buf=0x7fff112134e0, len=1) at exec.c:3190
+#9  0x000056367b0102eb in address_space_write (as=0x56367cff99c0, addr=4161801732, attrs=..., buf=0x7fff112134e0, len=1) at exec.c:3289
+
+On 5/23/20 8:03 PM, Philippe Mathieu-Daudé wrote:
+> Public bug reported:
+> 
+> As of commit d19f1ab0, LLVM libFuzzer found:
+> 
+> =================================================================
+> ==6814==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x7fd89f97bd5a at pc 0x55dc44594db5 bp 0x7ffd6f461b40 sp 0x7ffd6f461b38
+> READ of size 1 at 0x7fd89f97bd5a thread T0
+>     #0 0x55dc44594db4 in artist_rop8
+>     #1 0x55dc44595fd9 in draw_line
+>     #2 0x55dc445937e4 in draw_line_size
+>     #3 0x55dc4458ee9d in artist_reg_write
+>     #4 0x55dc43f77ba7 in memory_region_write_accessor
+>     #5 0x55dc43f775b8 in access_with_adjusted_size
+>     #6 0x55dc43f762b3 in memory_region_dispatch_write
+>     #7 0x55dc43dbb322 in flatview_write_continue
+>     #8 0x55dc43dab2e2 in flatview_write
+>     #9 0x55dc43daae14 in address_space_write
+> 
+> 0x7fd89f97bd5a is located 1122 bytes to the right of 16777464-byte region [0x7fd89e97b800,0x7fd89f97b8f8)
+> allocated by thread T0 here:
+>     #0 0x55dc43d87abf in operator new(unsigned long)
+>     #1 0x55dc43c4274d in fuzzer::FuzzerDriver(int*, char***, int (*)(unsigned char const*, unsigned long))
+>     #2 0x55dc43c3a526 in main (qemu-fuzz-hppa+0x982526)
+>     #3 0x7fd8d05edf42 in __libc_start_main (/lib64/libc.so.6+0x23f42)
+> 
+> SUMMARY: AddressSanitizer: heap-buffer-overflow (qemu-fuzz-hppa+0x12dcdb4) in artist_rop8
+> Shadow bytes around the buggy address:
+>   0x0ffb93f27750: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
+>   0x0ffb93f27760: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
+>   0x0ffb93f27770: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
+>   0x0ffb93f27780: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
+>   0x0ffb93f27790: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
+> =>0x0ffb93f277a0: fa fa fa fa fa fa fa fa fa fa fa[fa]fa fa fa fa
+>   0x0ffb93f277b0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
+>   0x0ffb93f277c0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
+>   0x0ffb93f277d0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
+>   0x0ffb93f277e0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
+>   0x0ffb93f277f0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
+> Shadow byte legend (one shadow byte represents 8 application bytes):
+>   Addressable:           00
+>   Partially addressable: 01 02 03 04 05 06 07 
+>   Heap left redzone:       fa
+>   Freed heap region:       fd
+>   Stack left redzone:      f1
+>   Stack mid redzone:       f2
+>   Stack right redzone:     f3
+>   Stack after return:      f5
+>   Stack use after scope:   f8
+>   Global redzone:          f9
+>   Global init order:       f6
+>   Poisoned by user:        f7
+>   Container overflow:      fc
+>   Array cookie:            ac
+>   Intra object redzone:    bb
+>   ASan internal:           fe
+>   Left alloca redzone:     ca
+>   Right alloca redzone:    cb
+>   Shadow gap:              cc
+> ==6814==ABORTING
+> 
+> How to reproduce:
+> 
+> qemu-system-hppa -S -qtest stdio -accel qtest -display none < EOF
+> writeb 0xf8100081 0x40
+> writeb 0xf81000c5 0x40
+> writeb 0xf8100e44 0x2b
+> writeb 0xf8100e44 0x56
+> writeb 0xf8100e44 0x10
+> writeb 0xf8100600 0x0
+> writeb 0xf8100821 0x21
+> writeb 0xf8100b01 0x14
+> writew 0xf8100044 0x1245
+> writeb 0xf8100a0e 0x50
+> writeb 0xf8100a02 0x49
+> writeb 0xf8100821 0x0
+> writew 0xf8100014 0x0
+> writeb 0xf8100e46 0x46
+> writeb 0xf8100052 0xe
+> writeb 0xf8100621 0x14
+> writeb 0xf8100b01 0x14
+> writew 0xf8100044 0x1241
+> writeb 0xf8100b02 0x25
+> writeb 0xf8100b01 0x4
+> writeb 0xf8100e46 0xb0
+> writeb 0xf8100b02 0x0
+> writel 0xf81000c4 0x49494949
+> writeb 0xf8100b02 0x10
+> writew 0xf8100010 0x11
+> writew 0xf8100044 0x1212
+> writew 0xf8100044 0x1245
+> writew 0xf8100050 0xe2a
+> writeb 0xf8100002 0x11
+> writeb 0xf8100081 0xec
+> writeb 0xf8100081 0xec
+> writeb 0xf810030e 0xe
+> writeb 0xf810000e 0x44
+> writeb 0xf8100000 0xe
+> writeb 0xf8100044 0xe
+> writeb 0xf8100000 0xe
+> writeb 0xf810030e 0x13
+> writeb 0xf8100b44 0x2a
+> writeb 0xf8100bf8 0x4
+> writeb 0xf8100007 0x45
+> writeb 0xf81000ff 0xff
+> writew 0xf8100044 0xf042
+> writew 0xf8100000 0x45
+> writew 0xf8100044 0xf042
+> writeb 0xf8100000 0xc5
+> writeb 0xf81000ff 0xff
+> writel 0xf8100044 0x101364ff
+> writel 0xf81000c4 0xfba0a0a0
+> writeb 0xf8100000 0x2a
+> writeb 0xf81000c5 0x40
+> writeb 0xf81000ff 0xdf
+> writew 0xf8100000 0x4144
+> writeb 0xf81000df 0x0
+> writew 0xf8100044 0x4400
+> writel 0xf8100044 0x101364ff
+> writel 0xf81000c4 0xfb490045
+> writeb 0xf8100000 0x2a
+> writeb 0xf81000c5 0x40
+> writel 0xf8100044 0x101364ff
+> writel 0xf8100bc4 0x49004545
+> writeb 0xf8100000 0x2a
+> writeb 0xf81000c5 0x40
+> writeb 0xf810000e 0x21
+> writeb 0xf8100000 0x2a
+> writeb 0xf81000c3 0x40
+> writeb 0xf81000ff 0xdf
+> writew 0xf8100044 0x1210
+> writew 0xf8100044 0x1210
+> writew 0xf8100010 0x4412
+> writew 0xf8100010 0x4412
+> writew 0xf8100044 0x1210
+> writew 0xf8100044 0x1210
+> writew 0xf8100044 0x1210
+> writew 0xf8100000 0x4144
+> writew 0xf8100044 0x4400
+> writew 0xf8100000 0x4144
+> writew 0xf81000bc 0xc100
+> writew 0xf8100000 0x4144
+> writew 0xf81000bc 0xc100
+> writew 0xf8100044 0x1210
+> writel 0xf8100044 0xfb53000a
+> writew 0xf8100044 0x1210
+> writel 0xf8100044 0xfb53000a
+> writew 0xf8100044 0x1210
+> writel 0xf8100044 0xfba7000a
+> writew 0xf8100044 0x1210
+> writew 0xf8100044 0x1210
+> writew 0xf8100000 0x4144
+> writew 0xf8100000 0x4144
+> writew 0xf8100000 0x4144
+> writew 0xf8100044 0x4400
+> writew 0xf8100044 0x4411
+> writew 0xf8100044 0x1210
+> writew 0xf8100044 0x1210
+> writew 0xf8100044 0x1210
+> writew 0xf8100044 0x1212
+> writew 0xf8100044 0x4445
+> writeb 0xf81000ff 0xff
+> writeb 0xf8100121 0x14
+> writeb 0xf8100121 0x14
+> writeb 0xf8100421 0x0
+> writeb 0xf8100421 0x28
+> writeb 0xf8100000 0x2a
+> writeb 0xf81000c5 0x40
+> writeb 0xf8100040 0x0
+> writeb 0xf8100007 0x45
+> writeb 0xf8100007 0x45
+> writeb 0xf8100bf8 0x4
+> writeb 0xf8100bf8 0x4
+> writeb 0xf8100bf8 0x4
+> writeb 0xf8100bf8 0x4
+> writeb 0xf8100bf8 0x4
+> writew 0xf8100060 0x11
+> writew 0xf8100060 0x11
+> writew 0xf8100060 0x17
+> writeb 0xf8100446 0x46
+> writeb 0xf8100604 0x50
+> writeb 0xf8100821 0x21
+> writeb 0xf8100108 0x21
+> writeb 0xf810010c 0x21
+> writeb 0xf8100081 0xec
+> writeb 0xf8100041 0xec
+> writel 0xf8100044 0x101364ff
+> writel 0xf81000c4 0xfba0a0a0
+> writel 0xf8100044 0x101364ff
+> writel 0xf81000c4 0xfba0a0a0
+> writel 0xf8100044 0x101364ff
+> writel 0xf81000c4 0xfba0a0a0
+> writeb 0xf8100052 0x24
+> writew 0xf8100000 0x4144
+> writeb 0xf81000df 0x0
+> writew 0xf8100044 0x4400
+> writew 0xf8100000 0x4144
+> writeb 0xf81000df 0x41
+> writeb 0xf8100504 0x50
+> writew 0xf8100010 0x4412
+> writew 0xf8100010 0x4412
+> writew 0xf8100094 0x4145
+> writel 0xf8100044 0x10424410
+> writel 0xf81000a0 0xa0a0492a
+> writel 0xf8100044 0x10040000
+> writeb 0xf8100007 0x44
+> writeb 0xf81000ff 0xff
+> writeb 0xf8100007 0x44
+> writeb 0xf81000ff 0x4
+> writel 0xf8100044 0x10134900
+> writeb 0xf8100000 0x2a
+> writeb 0xf81000c5 0x40
+> writeb 0xf8100000 0x2a
+> writeb 0xf81000c5 0x40
+> writew 0xf8100040 0x1212
+> writew 0xf8100044 0x1245
+> writew 0xf8100040 0x1212
+> writew 0xf8100040 0x5002
+> writew 0xf8100040 0x5002
+> writew 0xf8100040 0x502a
+> writeb 0xf8100081 0x40
+> writeb 0xf810005d 0x40
+> writeb 0xf8100030 0x5d
+> writeb 0xf8100e44 0x44
+> writeb 0xf8100044 0x3
+> writeb 0xf8100044 0x3
+> writeb 0xf8100044 0x13
+> writew 0xf8100044 0x1210
+> writew 0xf8100044 0x1210
+> writew 0xf8100044 0x1210
+> writew 0xf8100044 0x6d10
+> writeb 0xf8100044 0x6d
+> writeb 0xf8100000 0x2a
+> writeb 0xf8100044 0x40
+> writeb 0xf8100045 0xec
+> writew 0xf8100044 0x1210
+> writew 0xf8100044 0x1245
+> writel 0xf8100044 0x101364ff
+> writel 0xf81000c4 0xfba0a0a0
+> writel 0xf8100044 0x101364ff
+> writel 0xf8100044 0x101364ff
+> writel 0xf8100044 0x101364ff
+> writel 0xf8100008 0xfba0a0a0
+> writel 0xf8100044 0x4208fba0
+> writew 0xf8100010 0x4412
+> writew 0xf8100010 0x4412
+> writew 0xf8100010 0x4412
+> writew 0xf8100010 0x4412
+> writew 0xf8100010 0x4412
+> writew 0xf8100000 0x4144
+> writeb 0xf810030e 0xe
+> writeb 0xf810030e 0xe
+> writeb 0xf810032b 0xe
+> writeb 0xf810032b 0xe
+> writew 0xf8100010 0x4412
+> writew 0xf81000ca 0x4441
+> writew 0xf8100010 0x4412
+> writew 0xf8100010 0x4412
+> writew 0xf8100010 0x4412
+> writew 0xf8100010 0x4412
+> writeb 0xf8100080 0xe
+> writeb 0xf8100080 0xd8
+> writeb 0xf8100080 0x26
+> writeb 0xf8100040 0x80
+> writeb 0xf8100040 0x26
+> writeb 0xf81000c3 0x40
+> writeb 0xf81000ff 0xdf
+> writeb 0xf81000c3 0x40
+> writeb 0xf81000ff 0xdf
+> writew 0xf8100014 0x4000
+> writeb 0xf8100000 0xe
+> writeb 0xf8100000 0x9e
+> writeb 0xf8100000 0x3c
+> writeb 0xf8100000 0x3c
+> writeb 0xf8100000 0x3c
+> writew 0xf8100000 0x4144
+> writeb 0xf81000df 0x41
+> writeb 0xf8100007 0x45
+> writeb 0xf81000ff 0xff
+> writeb 0xf8100007 0xb4
+> writeb 0xf81000ff 0xff
+> writeb 0xf8100007 0xb4
+> writeb 0xf8100007 0xb4
+> writel 0xf8100044 0x10139c05
+> writel 0xf81000c4 0xfba0a0a0
+> writeb 0xf8100604 0x50
+> writeb 0xf8100021 0xe
+> writeb 0xf8100021 0xe
+> writeb 0xf8100021 0xe
+> writeb 0xf8100021 0x90
+> writew 0xf8100010 0x11
+> writew 0xf8100010 0x11
+> writew 0xf8100010 0x11
+> writeb 0xf8100021 0xe
+> writeb 0xf8100021 0xe
+> writeb 0xf8100021 0xe
+> writeb 0xf8100021 0xe
+> writeb 0xf8100021 0xe
+> writew 0xf8100010 0x4412
+> writew 0xf8100010 0x4412
+> writew 0xf8100010 0x4412
+> writew 0xf8100010 0x4412
+> writew 0xf8100010 0x4412
+> writeb 0xf8100021 0xe
+> writeb 0xf8100021 0xe
+> writeb 0xf8100021 0x21
+> writeb 0xf8100021 0x21
+> writeb 0xf8100000 0x0
+> writeb 0xf8100e04 0x46
+> EOF
+> 
+> Program terminated with signal SIGSEGV, Segmentation fault.
+> #0  0x000056367b2085c0 in artist_rop8 (s=0x56367d38b510, dst=0x7f9f972fffff <error: Cannot access memory at address 0x7f9f972fffff>, val=0 '\000') at hw/display/artist.c:284
+> 284             *dst &= ~plane_mask;
+> (gdb) bt
+> #0  0x000056367b2085c0 in artist_rop8 (s=0x56367d38b510, dst=0x7f9f972fffff <error: Cannot access memory at address 0x7f9f972fffff>, val=0 '\000') at hw/display/artist.c:284
+> #1  0x000056367b209325 in draw_line (s=0x56367d38b510, x1=-20480, y1=-1, x2=0, y2=17920, update_start=true, skip_pix=-1, max_pix=-1) at hw/display/artist.c:646
+> #2  0x000056367b2095a0 in draw_line_size (s=0x56367d38b510, update_start=true) at hw/display/artist.c:696
+> #3  0x000056367b20a214 in artist_reg_write (opaque=0x56367d38b510, addr=1052164, val=70, size=1) at hw/display/artist.c:932
+> #4  0x000056367b06ea7c in memory_region_write_accessor (mr=0x56367d38ba10, addr=1052164, value=0x7fff112132d8, size=1, shift=0, mask=255, attrs=...) at memory.c:483
+> #5  0x000056367b06ec33 in access_with_adjusted_size (addr=1052164, value=0x7fff112132d8, size=1, access_size_min=1, access_size_max=4, access_fn=
+>     0x56367b06e999 <memory_region_write_accessor>, mr=0x56367d38ba10, attrs=...) at memory.c:540
+> #6  0x000056367b071bb4 in memory_region_dispatch_write (mr=0x56367d38ba10, addr=1052164, data=70, op=MO_8, attrs=...) at memory.c:1477
+> #7  0x000056367b00fe33 in flatview_write_continue (fv=0x56367d6f9fa0, addr=4161801732, attrs=..., ptr=0x7fff112134e0, len=1, addr1=1052164, l=1, mr=0x56367d38ba10) at exec.c:3147
+> #8  0x000056367b00ff81 in flatview_write (fv=0x56367d6f9fa0, addr=4161801732, attrs=..., buf=0x7fff112134e0, len=1) at exec.c:3190
+> #9  0x000056367b0102eb in address_space_write (as=0x56367cff99c0, addr=4161801732, attrs=..., buf=0x7fff112134e0, len=1) at exec.c:3289
+> 
+> ** Affects: qemu
+>      Importance: Undecided
+>          Status: New
+> 
+
+The crash is avoided using this patch:
+-- >8 --
+diff --git a/hw/display/artist.c b/hw/display/artist.c
+index 6e17c43f13..fcfd67da47 100644
+--- a/hw/display/artist.c
++++ b/hw/display/artist.c
+@@ -563,7 +563,7 @@ static void fill_window(ARTISTState *s, int startx,
+int starty,
+ static void draw_line(ARTISTState *s, int x1, int y1, int x2, int y2,
+                       bool update_start, int skip_pix, int max_pix)
+ {
+-    struct vram_buffer *buf;
++    struct vram_buffer *buf = &s->vram_buffer[ARTIST_BUFFER_AP];
+     uint8_t color;
+     int dx, dy, t, e, x, y, incy, diago, horiz;
+     bool c1;
+@@ -571,6 +571,12 @@ static void draw_line(ARTISTState *s, int x1, int
+y1, int x2, int y2,
+
+     trace_artist_draw_line(x1, y1, x2, y2);
+
++    if (x1 * y1 >= buf->size || x2 * y2 >= buf->size) {
++        qemu_log_mask(LOG_GUEST_ERROR,
++                      "draw line (%d,%d) (%d,%d)\n", x1, y1, x2, y2);
++        return;
++    }
++
+     if (update_start) {
+         s->vram_start = (x2 << 16) | y2;
+     }
+@@ -628,7 +634,6 @@ static void draw_line(ARTISTState *s, int x1, int
+y1, int x2, int y2,
+     x = x1;
+     y = y1;
+     color = artist_get_color(s);
+-    buf = &s->vram_buffer[ARTIST_BUFFER_AP];
+
+     do {
+         if (c1) {
+---
+
+I am not sure this is the best fix, IMO the invalid value should be
+reported earlier.
+
+
+Fixed in commits 84a7b7741a62ede8ff01ae151e59b2a16bda629b and a501bfc91763d4642390090dd4e6039d67b63702
+