xemu-project/xemu
1
0
Fork 0
mirror of https://github.com/xemu-project/xemu.git synced 2024-11-28 22:10:33 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

VFIO fixes 2017-07-26

Browse Source 
- Error path use after free bug fixes (Philippe Mathieu-Daudé)
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2.0.14 (GNU/Linux)
 
 iQIcBAABAgAGBQJZeNYMAAoJECObm247sIsi33UQAJyGyE/szH8Z2wJAuY1poK+6
 OLw65KtGpCNLKt9+DEt1y0aA5arK/rjrLmdn/7D+A1IHLHbQcb/C+PvMhv5Mo2s0
 SckwUmgL9hohgvpcJuybNpLs1IFbEUt2IekEkczwYoVrGZXh3DlNaxPh+PVz80kt
 P0Lp/EQ9lvKNxbvZq+D6jHDkt0ICheqI43nA641qxpDlZq7DfnQdkuNFJq0ZPe+k
 QKW0FkwfEG5mmofVhq6+xu0IyuVDJJmyqcrYB+rUCk2amKOMkzSpzxjOPPiEP4u2
 XBIvmNWjhZwptIBV6o42ASi2zwv7k7l+yCw94EY89nlCqDHGXH6OyXxF99Sua94D
 h5oV5mq0Bx/xK6wt22RCOgwt1xaHakjuoV2vFheyNA5K2C+s1sWv03TrarxHC8PI
 vuZFlRwBhiiFcAVc0/RMUvP6kqSpr0taEetnCEc7WS6zlXls98BtoH/Cc/YeZah9
 ybL1VZ75Hz5DpdsXyFQoeC2Hiap+AVEXpAqrPVwdVe2LkRpP5015u5qMATSfo3kV
 SmF1hCN7300omp24LReEqFvhlaRW7whkFlDF0UzF6cg2vXQXtxB0MauwcmXuZ+cZ
 laUcqyXkwZsy83fZwiQKXsHIzy8WiR8XP4yyihMYPSIP7WL41Al1gRROX5aSr5R+
 fGRdLrZ3AooByfFF7l8T
 =zmWF
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/awilliam/tags/vfio-fixes-20170726.0' into staging

VFIO fixes 2017-07-26

 - Error path use after free bug fixes (Philippe Mathieu-Daudé)

# gpg: Signature made Wed 26 Jul 2017 18:49:00 BST
# gpg:                using RSA key 0x239B9B6E3BB08B22
# gpg: Good signature from "Alex Williamson <alex.williamson@redhat.com>"
# gpg:                 aka "Alex Williamson <alex@shazbot.org>"
# gpg:                 aka "Alex Williamson <alwillia@redhat.com>"
# gpg:                 aka "Alex Williamson <alex.l.williamson@gmail.com>"
# Primary key fingerprint: 42F6 C04E 540B D1A9 9E7B  8A90 239B 9B6E 3BB0 8B22

* remotes/awilliam/tags/vfio-fixes-20170726.0:
  vfio/pci: fix use of freed memory
  vfio/platform: fix use of freed memory

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell 2017-07-27 10:49:05 +01:00
commit 6be37cc583
2 changed files with 8 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
hw/vfio/pci.c
View File

@ -257,7 +257,7 @@ static void vfio_intx_update(PCIDevice *pdev)
static int vfio_intx_enable(VFIOPCIDevice *vdev, Error **errp)
{
uint8_t pin = vfio_pci_read_config(&vdev->pdev, PCI_INTERRUPT_PIN, 1);
int ret, argsz;
int ret, argsz, retval = 0;
struct vfio_irq_set *irq_set;
int32_t *pfd;
Error *err = NULL;
@ -302,12 +302,12 @@ static int vfio_intx_enable(VFIOPCIDevice *vdev, Error **errp)
qemu_set_fd_handler(*pfd, vfio_intx_interrupt, NULL, vdev);
ret = ioctl(vdev->vbasedev.fd, VFIO_DEVICE_SET_IRQS, irq_set);
g_free(irq_set);
if (ret) {
error_setg_errno(errp, -ret, "failed to setup INTx fd");
qemu_set_fd_handler(*pfd, NULL, NULL, vdev);
event_notifier_cleanup(&vdev->intx.interrupt);
return -errno;
retval = -errno;
goto cleanup;
}
vfio_intx_enable_kvm(vdev, &err);
@ -319,7 +319,10 @@ static int vfio_intx_enable(VFIOPCIDevice *vdev, Error **errp)
trace_vfio_intx_enable(vdev->vbasedev.name);
return 0;
cleanup:
g_free(irq_set);
return retval;
}
static void vfio_intx_disable(VFIOPCIDevice *vdev)

2
hw/vfio/platform.c
View File

@ -120,11 +120,11 @@ static int vfio_set_trigger_eventfd(VFIOINTp *intp,
*pfd = event_notifier_get_fd(intp->interrupt);
qemu_set_fd_handler(*pfd, (IOHandler *)handler, NULL, intp);
ret = ioctl(vbasedev->fd, VFIO_DEVICE_SET_IRQS, irq_set);
g_free(irq_set);
if (ret < 0) {
error_report("vfio: Failed to set trigger eventfd: %m");
qemu_set_fd_handler(*pfd, NULL, NULL, NULL);
}
g_free(irq_set);
return ret;
}