[NFS-Ganesha-Devel] [S] Change in ...nfs-ganesha[next]: Fix current object during readdir of a directory with junctions.

pradeepthomas(a)gmail.com has uploaded this change for review. ( https://review.gerrithub.io/c/ffilz/nfs-ganesha/+/557590?usp=email ) Change subject: Fix current object during readdir of a directory with junctions. ...................................................................... Fix current object during readdir of a directory with junctions. When going through junctions under a directory, populate_dirent tries to traverse it. If the client has requested FS level attributes like FATTR4_SPACE_AVAIL, this process could get to child FSAL's get_dynamic_info. If get_dynamic_info of the child FSAL is called with parent's object handle, it could potentially crash. For example, if a readdir is performed under server root ("/"), then ganesha crashes in VFS:get_dynamic_info when doing the check obj_hdl->fs->fsal as obj_hdl belongs to PSEUDO FSAL and there fs pointer is NULL. Note that Linux NFS client does not ask for FS level attributes during readdir. But there are proprietary NFSv4 clients that could ask for these to avoid subsequent GETATTR calls. Change-Id: I3beb7c7c231af7f9d9e3ee32eeaf945a50388355 Signed-off-by: Pradeep Thomas <pradeepthomas(a)gmail.com&gt; --- M src/Protocols/NFS/nfs4_op_readdir.c 1 file changed, 18 insertions(+), 0 deletions(-) git pull ssh://review.gerrithub.io:29418/ffilz/nfs-ganesha refs/changes/90/557590/1 -- To view, visit https://review.gerrithub.io/c/ffilz/nfs-ganesha/+/557590?usp=email To unsubscribe, or for help writing mail filters, visit https://review.gerrithub.io/settings Gerrit-Project: ffilz/nfs-ganesha Gerrit-Branch: next Gerrit-Change-Id: I3beb7c7c231af7f9d9e3ee32eeaf945a50388355 Gerrit-Change-Number: 557590 Gerrit-PatchSet: 1 Gerrit-Owner: pradeepthomas(a)gmail.com Gerrit-MessageType: newchange