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| author | David Howells <dhowells@redhat.com> | 2023-06-24 01:55:10 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2023-06-25 01:50:13 +0300 |
| commit | 86d7bd6e66e9925f0f04a7bcf3c92c05fdfefb5a (patch) | |
| tree | f9b407f9aebacfc84db35c2cecbd97e30aeeec4a /net | |
| parent | d2fe21077d6d4687ecab642ffe97c2e4acf3a547 (diff) | |
| download | linux-86d7bd6e66e9925f0f04a7bcf3c92c05fdfefb5a.tar.xz | |
ocfs2: Fix use of slab data with sendpage
ocfs2 uses kzalloc() to allocate buffers for o2net_hand, o2net_keep_req and
o2net_keep_resp and then passes these to sendpage. This isn't really
allowed as the lifetime of slab objects is not controlled by page ref -
though in this case it will probably work. sendmsg() with MSG_SPLICE_PAGES
will, however, print a warning and give an error.
Fix it to use folio_alloc() instead to allocate a buffer for the handshake
message, keepalive request and reply messages.
Fixes: 98211489d414 ("[PATCH] OCFS2: The Second Oracle Cluster Filesystem")
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Mark Fasheh <mark@fasheh.com>
cc: Kurt Hackel <kurt.hackel@oracle.com>
cc: Joel Becker <jlbec@evilplan.org>
cc: Joseph Qi <joseph.qi@linux.alibaba.com>
cc: ocfs2-devel@oss.oracle.com
Link: https://lore.kernel.org/r/20230623225513.2732256-14-dhowells@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net')
0 files changed, 0 insertions, 0 deletions