Public bug reported:
To reproduce run the QEMU with the following command line:
```
qemu-system-x86_64 -cdrom hypertrash.iso -nographic -m 100 -enable-kvm -net
none -drive id=disk,file=hda.img,if=none -device ahci,id=ahci -device
ide-hd,drive=disk,bus=ahci.0
```
QEMU Version:
```
# qemu-5.0.0
$ ./configure --target-list=x86_64-softmmu --enable-sanitizers; make
$ x86_64-softmmu/qemu-system-x86_64 --version
QEMU emulator version 5.0.0
Copyright (c) 2003-2020 Fabrice Bellard and the QEMU Project developers
```
To create disk image run:
```
dd if=/dev/zero of=hda.img bs=1024 count=1024
```
** Affects: qemu
Importance: Undecided
Status: New
** Attachment added: "ide_bug_2.zip"
https://bugs.launchpad.net/bugs/1883739/+attachment/5384438/+files/ide_bug_2.zip
--
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https://bugs.launchpad.net/bugs/1883739
Title:
ide_dma_cb: Assertion `prep_size >= 0 && prep_size <= n * 512' failed.
Status in QEMU:
New
Bug description:
To reproduce run the QEMU with the following command line:
```
qemu-system-x86_64 -cdrom hypertrash.iso -nographic -m 100 -enable-kvm -net
none -drive id=disk,file=hda.img,if=none -device ahci,id=ahci -device
ide-hd,drive=disk,bus=ahci.0
```
QEMU Version:
```
# qemu-5.0.0
$ ./configure --target-list=x86_64-softmmu --enable-sanitizers; make
$ x86_64-softmmu/qemu-system-x86_64 --version
QEMU emulator version 5.0.0
Copyright (c) 2003-2020 Fabrice Bellard and the QEMU Project developers
```
To create disk image run:
```
dd if=/dev/zero of=hda.img bs=1024 count=1024
```
To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1883739/+subscriptions
