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| author | Peng Liang <liangpeng10@huawei.com> | 2021-11-17 09:47:39 +0800 |
|---|---|---|
| committer | Alex Williamson <alex.williamson@redhat.com> | 2021-11-17 11:25:55 -0700 |
| commit | f3bc3a73c908df15966e66f88d5a633bd42fd029 (patch) | |
| tree | 5cb488903ab08148ca94ce3b32d0caf43a36309f /hw/vfio | |
| parent | 3bb87484e77d22cf4e580a78856529c982195d32 (diff) | |
| download | qemu-f3bc3a73c908df15966e66f88d5a633bd42fd029.zip qemu-f3bc3a73c908df15966e66f88d5a633bd42fd029.tar.gz qemu-f3bc3a73c908df15966e66f88d5a633bd42fd029.tar.bz2 | |
vfio: Fix memory leak of hostwin
hostwin is allocated and added to hostwin_list in vfio_host_win_add, but
it is only deleted from hostwin_list in vfio_host_win_del, which causes
a memory leak. Also, freeing all elements in hostwin_list is missing in
vfio_disconnect_container.
Fix: 2e4109de8e58 ("vfio/spapr: Create DMA window dynamically (SPAPR IOMMU v2)")
CC: qemu-stable@nongnu.org
Signed-off-by: Peng Liang <liangpeng10@huawei.com>
Link: https://lore.kernel.org/r/20211117014739.1839263-1-liangpeng10@huawei.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Diffstat (limited to 'hw/vfio')
| -rw-r--r-- | hw/vfio/common.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/hw/vfio/common.c b/hw/vfio/common.c index dd387b0..080046e 100644 --- a/hw/vfio/common.c +++ b/hw/vfio/common.c @@ -551,6 +551,7 @@ static int vfio_host_win_del(VFIOContainer *container, hwaddr min_iova, QLIST_FOREACH(hostwin, &container->hostwin_list, hostwin_next) { if (hostwin->min_iova == min_iova && hostwin->max_iova == max_iova) { QLIST_REMOVE(hostwin, hostwin_next); + g_free(hostwin); return 0; } } @@ -2239,6 +2240,7 @@ static void vfio_disconnect_container(VFIOGroup *group) if (QLIST_EMPTY(&container->group_list)) { VFIOAddressSpace *space = container->space; VFIOGuestIOMMU *giommu, *tmp; + VFIOHostDMAWindow *hostwin, *next; QLIST_REMOVE(container, next); @@ -2249,6 +2251,12 @@ static void vfio_disconnect_container(VFIOGroup *group) g_free(giommu); } + QLIST_FOREACH_SAFE(hostwin, &container->hostwin_list, hostwin_next, + next) { + QLIST_REMOVE(hostwin, hostwin_next); + g_free(hostwin); + } + trace_vfio_disconnect_container(container->fd); close(container->fd); g_free(container); |