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authorGreg Kurz <groug@kaod.org>2016-09-16 11:44:49 +0200
committerGreg Kurz <groug@kaod.org>2016-09-19 11:39:48 +0200
commit13fd08e631ec0c3ff5ad1bdcb6a4474c7d9a024f (patch)
treebaea24c959a591dde9dc76c8855e42378d5d82dc /exec.c
parent557a4cc04a7cd092e8b5d6ef5a1e6799ed10b163 (diff)
downloadqemu-13fd08e631ec0c3ff5ad1bdcb6a4474c7d9a024f.zip
9pfs: fix potential segfault during walk
If the call to fid_to_qid() returns an error, we will call v9fs_path_free() on uninitialized paths. It is a regression introduced by the following commit: 56f101ecce0e 9pfs: handle walk of ".." in the root directory Let's fix this by initializing dpath and path before calling fid_to_qid(). Signed-off-by: Greg Kurz <groug@kaod.org> Reviewed-by: Cédric Le Goater <clg@kaod.org> [groug: updated the changelog to indicate this is regression and to provide the offending commit SHA1] Signed-off-by: Greg Kurz <groug@kaod.org>
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