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| author | Prasad J Pandit | 2016-01-11 20:10:42 +0100 |
|---|---|---|
| committer | John Snow | 2016-01-11 20:10:42 +0100 |
| commit | 4ab0359a8ae182a7ac5c99609667273167703fab (patch) | |
| tree | eef66e493a427e7af812f86ca33cd8a21c0ba36e /include/exec/exec-all.h | |
| parent | macio: fix overflow in lba to offset conversion for ATAPI devices (diff) | |
| download | qemu-4ab0359a8ae182a7ac5c99609667273167703fab.tar.gz qemu-4ab0359a8ae182a7ac5c99609667273167703fab.tar.xz qemu-4ab0359a8ae182a7ac5c99609667273167703fab.zip | |
ide: ahci: reset ncq object to unused on error
When processing NCQ commands, AHCI device emulation prepares a
NCQ transfer object; To which an aio control block(aiocb) object
is assigned in 'execute_ncq_command'. In case, when the NCQ
command is invalid, the 'aiocb' object is not assigned, and NCQ
transfer object is left as 'used'. This leads to a use after
free kind of error in 'bdrv_aio_cancel_async' via 'ahci_reset_port'.
Reset NCQ transfer object to 'unused' to avoid it.
[Maintainer edit: s/ACHI/AHCI/ in the commit message. --js]
Reported-by: Qinghao Tang <luodalongde@gmail.com>
Signed-off-by: Prasad J Pandit <pjp@fedoraproject.org>
Reviewed-by: John Snow <jsnow@redhat.com>
Message-id: 1452282511-4116-1-git-send-email-ppandit@redhat.com
Signed-off-by: John Snow <jsnow@redhat.com>
Diffstat (limited to 'include/exec/exec-all.h')
0 files changed, 0 insertions, 0 deletions