diff options
| author | Christian Krinitsin <mail@krinitsin.com> | 2025-06-30 12:24:58 +0000 |
|---|---|---|
| committer | Christian Krinitsin <mail@krinitsin.com> | 2025-06-30 12:27:06 +0000 |
| commit | 33606b41d35115f887ea688b1a16f2ff85bf2fe4 (patch) | |
| tree | 406b2c7b19a087ba437c68f3dbf0b589fa1d6150 /results/scraper/launchpad-without-comments/1878136 | |
| parent | adedf8771bc4de3113041ca21bd4d0d1c0014b6a (diff) | |
| download | qemu-analysis-33606b41d35115f887ea688b1a16f2ff85bf2fe4.tar.gz qemu-analysis-33606b41d35115f887ea688b1a16f2ff85bf2fe4.zip | |
add launchpad bug reports without comments
Diffstat (limited to 'results/scraper/launchpad-without-comments/1878136')
| -rw-r--r-- | results/scraper/launchpad-without-comments/1878136 | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/results/scraper/launchpad-without-comments/1878136 b/results/scraper/launchpad-without-comments/1878136 new file mode 100644 index 000000000..1be731716 --- /dev/null +++ b/results/scraper/launchpad-without-comments/1878136 @@ -0,0 +1,44 @@ + Assertion failures in ati_reg_read_offs/ati_reg_write_offs + +Hello, +While fuzzing, I found inputs that trigger assertion failures in +ati_reg_read_offs/ati_reg_write_offs + +uint32_t extract32(uint32_t, int, int): Assertion `start >= 0 && length > 0 && length <= 32 - start' failed + +#3 0x00007ffff6866092 in __GI___assert_fail (assertion=0x555556e760c0 <str> "start >= 0 && length > 0 && length <= 32 - start", file=0x555556e76120 <str> "/home/alxndr/Development/qemu/include/qemu/bitops.h", line=0x12c, function=0x555556e76180 <__PRETTY_FUNCTION__.extract32> "uint32_t extract32(uint32_t, int, int)") at assert.c:101 +#4 0x000055555653d8a7 in ati_mm_read (opaque=<optimized out>, addr=0x1a, size=<optimized out>) at /home/alxndr/Development/qemu/include/qemu/log-for-trace.h:29 +#5 0x000055555653c825 in ati_mm_read (opaque=<optimized out>, addr=0x4, size=<optimized out>) at /home/alxndr/Development/qemu/hw/display/ati.c:289 +#6 0x000055555601446e in memory_region_read_accessor (mr=0x63100004dc20, addr=<optimized out>, value=<optimized out>, size=<optimized out>, shift=<optimized out>, mask=<optimized out>, attrs=...) at /home/alxndr/Development/qemu/memory.c:434 +#7 0x0000555556001a70 in access_with_adjusted_size (addr=<optimized out>, value=<optimized out>, size=<optimized out>, access_size_min=<optimized out>, access_size_max=<optimized out>, access_fn=<optimized out>, mr=0x63100004dc20, attrs=...) at /home/alxndr/Development/qemu/memory.c:544 +#8 0x0000555556001a70 in memory_region_dispatch_read1 (mr=0x63100004dc20, addr=0x4, pval=<optimized out>, size=0x4, attrs=...) at /home/alxndr/Development/qemu/memory.c:1396 + +I can reproduce it in qemu 5.0 built with using: +cat << EOF | ~/Development/qemu/build/i386-softmmu/qemu-system-i386 -M pc-q35-5.0 -device ati-vga -nographic -qtest stdio -monitor none -serial none +outl 0xcf8 0x80001018 +outl 0xcfc 0xe2000000 +outl 0xcf8 0x8000101c +outl 0xcf8 0x80001004 +outw 0xcfc 0x7 +outl 0xcf8 0x8000fa20 +write 0xe2000004 0x1 0x1a +readq 0xe2000000 +EOF + +Similarly for ati_reg_write_offs: +cat << EOF | ~/Development/qemu/build/i386-softmmu/qemu-system-i386 -M pc-q35-5.0 -device ati-vga -nographic -qtest stdio -monitor none -serial none +outl 0xcf8 0x80001018 +outl 0xcfc 0xe2000000 +outl 0xcf8 0x8000101c +outl 0xcf8 0x80001004 +outw 0xcfc 0x7 +outl 0xcf8 0x8000fa20 +write 0xe2000000 0x8 0x6a00000000006a00 +EOF + +I also attached the traces to this launchpad report, in case the formatting is broken: + +qemu-system-i386 -M pc-q35-5.0 -device ati-vga -nographic -qtest stdio -monitor none -serial none < attachment + +Please let me know if I can provide any further info. +-Alex \ No newline at end of file |