| Message ID | 20180814141247.32336-1-marcandre.lureau@redhat.com |
|---|---|
| State | New |
| Headers | show |
| Series | [v2] megasas: fix sglist leak | expand |
diff --git a/hw/scsi/megasas.c b/hw/scsi/megasas.c index ba1afa3c1e..7bee734718 100644 --- a/hw/scsi/megasas.c +++ b/hw/scsi/megasas.c @@ -465,6 +465,7 @@ static void megasas_unmap_frame(MegasasState *s, MegasasCmd *cmd) cmd->pa = 0; cmd->pa_size = 0; clear_bit(cmd->index, s->frame_map); + qemu_sglist_destroy(&cmd->qsg); } /* @@ -580,7 +581,6 @@ static void megasas_complete_frame(MegasasState *s, uint64_t context) static void megasas_complete_command(MegasasCmd *cmd) { - qemu_sglist_destroy(&cmd->qsg); cmd->iov_size = 0; cmd->iov_offset = 0;
tests/cdrom-test -p /x86_64/cdrom/boot/megasas Produces the following ASAN leak. ==25700==ERROR: LeakSanitizer: detected memory leaks Direct leak of 16 byte(s) in 1 object(s) allocated from: #0 0x7f06f8faac48 in malloc (/lib64/libasan.so.5+0xeec48) #1 0x7f06f87a73c5 in g_malloc (/lib64/libglib-2.0.so.0+0x523c5) #2 0x55a729f17738 in pci_dma_sglist_init /home/elmarco/src/qq/include/hw/pci/pci.h:818 #3 0x55a729f2a706 in megasas_map_dcmd /home/elmarco/src/qq/hw/scsi/megasas.c:698 #4 0x55a729f39421 in megasas_handle_dcmd /home/elmarco/src/qq/hw/scsi/megasas.c:1574 #5 0x55a729f3f70d in megasas_handle_frame /home/elmarco/src/qq/hw/scsi/megasas.c:1955 #6 0x55a729f40939 in megasas_mmio_write /home/elmarco/src/qq/hw/scsi/megasas.c:2119 #7 0x55a729f41102 in megasas_port_write /home/elmarco/src/qq/hw/scsi/megasas.c:2170 #8 0x55a729220e60 in memory_region_write_accessor /home/elmarco/src/qq/memory.c:527 #9 0x55a7292212b3 in access_with_adjusted_size /home/elmarco/src/qq/memory.c:594 #10 0x55a72922cf70 in memory_region_dispatch_write /home/elmarco/src/qq/memory.c:1473 #11 0x55a7290f5907 in flatview_write_continue /home/elmarco/src/qq/exec.c:3255 #12 0x55a7290f5ceb in flatview_write /home/elmarco/src/qq/exec.c:3294 #13 0x55a7290f6457 in address_space_write /home/elmarco/src/qq/exec.c:3384 #14 0x55a7290f64a8 in address_space_rw /home/elmarco/src/qq/exec.c:3395 #15 0x55a72929ecb0 in kvm_handle_io /home/elmarco/src/qq/accel/kvm/kvm-all.c:1729 #16 0x55a7292a0db5 in kvm_cpu_exec /home/elmarco/src/qq/accel/kvm/kvm-all.c:1969 #17 0x55a7291c4212 in qemu_kvm_cpu_thread_fn /home/elmarco/src/qq/cpus.c:1215 #18 0x55a72a966a6c in qemu_thread_start /home/elmarco/src/qq/util/qemu-thread-posix.c:504 #19 0x7f06ed486593 in start_thread (/lib64/libpthread.so.0+0x7593) Move the qemu_sglist_destroy() from megasas_complete_command() to megasas_unmap_frame(), so map/unmap are balanced. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> --- hw/scsi/megasas.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)