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authorDavid S. Miller <davem@davemloft.net>2019-12-23 02:15:05 +0300
committerDavid S. Miller <davem@davemloft.net>2019-12-23 02:15:05 +0300
commitac80010fc94eb0680d9a432b639583bd7ac29066 (patch)
tree2de924c048910abfbfff52a3d5188a790ead379f /fs/afs/mntpt.c
parentcfeec3fb5451c2edd0569c0c245868612a417e5f (diff)
parentc60174717544aa8959683d7e19d568309c3a0c65 (diff)
downloadlinux-ac80010fc94eb0680d9a432b639583bd7ac29066.tar.xz
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Mere overlapping changes in the conflicts here. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'fs/afs/mntpt.c')
-rw-r--r--fs/afs/mntpt.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/fs/afs/mntpt.c b/fs/afs/mntpt.c
index f532d6d3bd28..79bc5f1338ed 100644
--- a/fs/afs/mntpt.c
+++ b/fs/afs/mntpt.c
@@ -126,7 +126,7 @@ static int afs_mntpt_set_params(struct fs_context *fc, struct dentry *mntpt)
if (src_as->cell)
ctx->cell = afs_get_cell(src_as->cell);
- if (size > PAGE_SIZE - 1)
+ if (size < 2 || size > PAGE_SIZE - 1)
return -EINVAL;
page = read_mapping_page(d_inode(mntpt)->i_mapping, 0, NULL);
@@ -140,7 +140,9 @@ static int afs_mntpt_set_params(struct fs_context *fc, struct dentry *mntpt)
}
buf = kmap(page);
- ret = vfs_parse_fs_string(fc, "source", buf, size);
+ ret = -EINVAL;
+ if (buf[size - 1] == '.')
+ ret = vfs_parse_fs_string(fc, "source", buf, size - 1);
kunmap(page);
put_page(page);
if (ret < 0)