| commit | 9c33865a93d1bfea6c21fd394f59a997ec17d72a | |
| author | Badari Pulavarty <pbadari@us.ibm.com> | |
| Fri, 10 Aug 2007 20:00:44 +0000 (10 13:00 -0700) | ||
| committer | Greg Kroah-Hartman <gregkh@suse.de> | |
| Wed, 15 Aug 2007 16:25:10 +0000 (15 09:25 -0700) | ||
| tree | 8077040cee083a5afd62d370f1d537b08427cb35 | treesnapshot (tar.gz zip) |
| parent | 51a718fdf27c4bf61936f146516b9f623b4e9875 | commitdiff |
direct-io: fix error-path crashes
Need to initialize map_bh.b_state to zero. Otherwise, in case of a faulty
user-buffer its possible to go into dio_zero_block() and submit a page by
mistake - since it checks for buffer_new().
http://marc.info/?l=linux-kernel&m=118551339032528&w=2
akpm: Linus had a (better) patch to just do a kzalloc() in there, but it got
lost. Probably this version is better for -stable anwyay.
Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com>
Acked-by: Joe Jin <joe.jin@oracle.com>
Acked-by: Zach Brown <zach.brown@oracle.com>
Cc: gurudas pai <gurudas.pai@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Need to initialize map_bh.b_state to zero. Otherwise, in case of a faulty
user-buffer its possible to go into dio_zero_block() and submit a page by
mistake - since it checks for buffer_new().
http://marc.info/?l=linux-kernel&m=118551339032528&w=2
akpm: Linus had a (better) patch to just do a kzalloc() in there, but it got
lost. Probably this version is better for -stable anwyay.
Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com>
Acked-by: Joe Jin <joe.jin@oracle.com>
Acked-by: Zach Brown <zach.brown@oracle.com>
Cc: gurudas pai <gurudas.pai@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| fs/direct-io.c | diffblobblamehistory |