fuse: handle zero sized retrieve correctly

Browse source

commit 97e1532ef8 upstream.

Dereferencing req->page_descs[0] will Oops if req->max_pages is zero.

Reported-by: syzbot+c1e36d30ee3416289cc0@syzkaller.appspotmail.com
Tested-by: syzbot+c1e36d30ee3416289cc0@syzkaller.appspotmail.com
Fixes: b2430d7567 ("fuse: add per-page descriptor <offset, length> to fuse_req")
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>

...

This commit is contained in:

Miklos Szeredi 2019-01-16 10:27:59 +01:00 • committed by Ben Hutchings

parent 90451cdfd9

commit 2e1f7654f1

1 changed files with 1 additions and 1 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

2

fs/fuse/dev.c

View file