diff options
Diffstat (limited to 'results/classifier/accel-gemma3:12b/kvm/2327')
| -rw-r--r-- | results/classifier/accel-gemma3:12b/kvm/2327 | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/results/classifier/accel-gemma3:12b/kvm/2327 b/results/classifier/accel-gemma3:12b/kvm/2327 new file mode 100644 index 000000000..89e4aec28 --- /dev/null +++ b/results/classifier/accel-gemma3:12b/kvm/2327 @@ -0,0 +1,62 @@ + +negative shift exponent in cirrus_colorexpand_pattern_transp_0_24() +Description of problem: +My fuzzer detected a runtime error in cirrus_colorexpand_pattern_transp_0_24() + +The stack trace is: + +``` +../hw/display/cirrus_vga_rop2.h:216:23: runtime error: shift exponent -2 is negative + #0 0x5589a028c89a in cirrus_colorexpand_pattern_transp_0_24 hw/display/cirrus_vga_rop2.h:216:23 + #1 0x5589a031e239 in cirrus_bitblt_common_patterncopy hw/display/cirrus_vga.c:689:5 + #2 0x5589a032735d in cirrus_bitblt_cputovideo_next hw/display/cirrus_vga.c:820:13 + #3 0x5589a032cde9 in cirrus_linear_write hw/display/cirrus_vga.c:2365:13 + #4 0x5589a2982823 in memory_region_write_accessor system/memory.c:497:5 + #5 0x5589a2981f05 in access_with_adjusted_size system/memory.c:573:18 + #6 0x5589a297fe69 in memory_region_dispatch_write system/memory.c:1521:16 + #7 0x5589a2a2193e in flatview_write_continue_step system/physmem.c:2749:18 + #8 0x5589a2a211d4 in flatview_write_continue system/physmem.c:2779:19 + #9 0x5589a29f9cfb in flatview_write system/physmem.c:2810:12 + #10 0x5589a29f97c8 in address_space_write system/physmem.c:2930:18 +... +``` +Steps to reproduce: +Arguments:\ +export QEMU_ARGS="-display none -machine accel=qtest, -m 512M -machine\ +q35 -nodefaults -device cirrus-vga -display vnc=localhost:99 -L ../pc-bios/"\ +The base addresses of memory regions: + +* cirrus-io, 0x3b0 +* cirrus-low-memory, 0xa0000 +* cirrus-linear-io, 0xe0000000 +* cirrus-bitblt-mmio, 0xe1000000 +* cirrus-mmio, 0xe2000000 + +Reproducer: + +``` +writeb 0xe2000108 0x642a8d58 +writeb 0xe2000117 0x335af91c +writeb 0xe2000118 0x765861ed +writeb 0xe200010d 0x7c3af934 +writeb 0xe2000140 0x33f13baf +clock_step +writeb 0xe01f0e68 0x6ea3696c +writeb 0xe13bc720 0x11bb09ba +readb 0xe2000133 +writeb 0xe033629b 0x80f19dd +writeb 0xe134bba7 0x1eb198f9 +readb 0xe2000680 +writeb 0xe2000b84 0x3f0591fc +clock_step +writeb 0xe003469e 0xdbd627e +writeb 0xe114f2bc 0x41adfe48 +readb 0xe2000cde +readb 0xb269d +writeb 0xe1368066 0x3c9ab77 +readb 0xe12a7fe1 +writeb 0xe0191988 0x7e18b0d1 +EOF +``` +Additional information: +Ack: Chuhong Yuan (hslester96@gmail.com) |