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SUSE:SLE-12-SP2:GA
qemu-linux-user.7444
0199-9pfs-fix-potential-host-memory-leak.patch
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File 0199-9pfs-fix-potential-host-memory-leak.patch of Package qemu-linux-user.7444
From 5d3babcdc433859462b9e4942075ab300241ec18 Mon Sep 17 00:00:00 2001 From: Li Qiang <liqiang6-s@360.cn> Date: Mon, 17 Oct 2016 14:13:58 +0200 Subject: [PATCH] 9pfs: fix potential host memory leak in v9fs_read In 9pfs read dispatch function, it doesn't free two QEMUIOVector object thus causing potential memory leak. This patch avoid this. Signed-off-by: Li Qiang <liqiang6-s@360.cn> Signed-off-by: Greg Kurz <groug@kaod.org> (cherry picked from commit e95c9a493a5a8d6f969e86c9f19f80ffe6587e19) [BR: CVE-2016-8577 BSC#1003893] Signed-off-by: Bruce Rogers <brogers@suse.com> --- hw/9pfs/9p.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/hw/9pfs/9p.c b/hw/9pfs/9p.c index f2cce57454..e3df928160 100644 --- a/hw/9pfs/9p.c +++ b/hw/9pfs/9p.c @@ -1783,14 +1783,15 @@ static void v9fs_read(void *opaque) if (len < 0) { /* IO error return the error */ err = len; - goto out; + goto out_free_iovec; } } while (count < max_count && len > 0); err = pdu_marshal(pdu, offset, "d", count); if (err < 0) { - goto out; + goto out_free_iovec; } err += offset + count; +out_free_iovec: qemu_iovec_destroy(&qiov); qemu_iovec_destroy(&qiov_full); } else if (fidp->fid_type == P9_FID_XATTR) {
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