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vfio queue: 

* Fix for a memory corruption due to an extra free
 * Fix for a compile breakage
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Merge tag 'pull-vfio-20230524' of https://github.com/legoater/qemu into staging

vfio queue:

* Fix for a memory corruption due to an extra free
* Fix for a compile breakage

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# gpg: Signature made Wed 24 May 2023 01:17:34 AM PDT
# gpg:                using RSA key A0F66548F04895EBFE6B0B6051A343C7CFFBECA1
# gpg: Good signature from "Cédric Le Goater <clg@kaod.org>" [undefined]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: A0F6 6548 F048 95EB FE6B  0B60 51A3 43C7 CFFB ECA1

* tag 'pull-vfio-20230524' of https://github.com/legoater/qemu:
  util/vfio-helpers: Use g_file_read_link()
  vfio/pci: Fix a use-after-free issue

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2023-05-24 14:23:41 -07:00
parent 8acf865084 dbdea0dbfe
commit b300c13446
2 changed files with 6 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
hw/vfio/pci.c
View File

@ -2994,7 +2994,7 @@ static void vfio_realize(PCIDevice *pdev, Error **errp)
qemu_uuid_unparse(&vdev->vf_token, uuid);
name = g_strdup_printf("%s vf_token=%s", vbasedev->name, uuid);
} else {
name = vbasedev->name;
name = g_strdup(vbasedev->name);
}
ret = vfio_get_device(group, name, vbasedev, errp);

8
util/vfio-helpers.c
View File

@ -106,15 +106,17 @@ struct QEMUVFIOState {
*/
static char *sysfs_find_group_file(const char *device, Error **errp)
{
g_autoptr(GError) gerr = NULL;
char *sysfs_link;
char *sysfs_group;
char *p;
char *path = NULL;
sysfs_link = g_strdup_printf("/sys/bus/pci/devices/%s/iommu_group", device);
sysfs_group = g_malloc0(PATH_MAX);
if (readlink(sysfs_link, sysfs_group, PATH_MAX - 1) == -1) {
error_setg_errno(errp, errno, "Failed to find iommu group sysfs path");
sysfs_group = g_file_read_link(sysfs_link, &gerr);
if (gerr) {
error_setg(errp, "Failed to find iommu group sysfs path: %s",
gerr->message);
goto out;
}
p = strrchr(sysfs_group, '/');