diff options
| author | Sebastian Ott <sebott@linux.vnet.ibm.com> | 2016-04-15 09:41:35 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2016-04-21 09:50:09 +0200 |
| commit | dba599091c191d209b1499511a524ad9657c0e5a (patch) | |
| tree | 835e2a40008fcd17f7c3a18066c9c1de1d1a63c5 /arch/s390/mm/pgalloc.c | |
| parent | 55f058e7574c3615dea4615573a19bdb258696c6 (diff) | |
s390/pci: fix use after free in dma_init
After a failure during registration of the dma_table (because of the
function being in error state) we free its memory but don't reset the
associated pointer to zero.
When we then receive a notification from firmware (about the function
being in error state) we'll try to walk and free the dma_table again.
Fix this by resetting the dma_table pointer. In addition to that make
sure that we free the iommu_bitmap when appropriate.
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Reviewed-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/mm/pgalloc.c')
0 files changed, 0 insertions, 0 deletions