| commit | f4795406efcf49765ed02d8a5c2d366d353da017 | |
| author | Prasanna S. Panchamukhi <prasanna.panchamukhi@riverbed.com> | |
| Thu, 24 Jun 2010 03:31:03 +0000 (24 13:31 +1000) | ||
| committer | Greg Kroah-Hartman <gregkh@suse.de> | |
| Mon, 2 Aug 2010 17:29:42 +0000 (2 10:29 -0700) | ||
| tree | 1521d9aac4f5d59efd1f511da7959073ad82eeb6 | treesnapshot (tar.gz zip) |
| parent | 63ec731a4dcb77487b1caedf9b3a8d295c3f1ad7 | commitdiff |
md: raid10: Fix null pointer dereference in fix_read_error()
commit 0544a21db02c1d8883158fd6f323364f830a120a upstream.
Such NULL pointer dereference can occur when the driver was fixing the
read errors/bad blocks and the disk was physically removed
causing a system crash. This patch check if the
rcu_dereference() returns valid rdev before accessing it in fix_read_error().
Signed-off-by: Prasanna S. Panchamukhi <prasanna.panchamukhi@riverbed.com>
Signed-off-by: Rob Becker <rbecker@riverbed.com>
Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
commit 0544a21db02c1d8883158fd6f323364f830a120a upstream.
Such NULL pointer dereference can occur when the driver was fixing the
read errors/bad blocks and the disk was physically removed
causing a system crash. This patch check if the
rcu_dereference() returns valid rdev before accessing it in fix_read_error().
Signed-off-by: Prasanna S. Panchamukhi <prasanna.panchamukhi@riverbed.com>
Signed-off-by: Rob Becker <rbecker@riverbed.com>
Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| drivers/md/raid10.c | diffblobblamehistory |