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| author |   Prasanna S. Panchamukhi <prasanna.panchamukhi@riverbed.com> | 2010-06-24 13:31:03 +1000 |
|---|---|---|
| committer |   NeilBrown <neilb@suse.de> | 2010-06-24 13:31:03 +1000 |
| commit | 0544a21db02c1d8883158fd6f323364f830a120a (patch) | |
| tree | 086c38e3c9132a8ecdee0ccbdd845ce2604caad9 /drivers/acpi/debug.c | |
| parent | Restore partition detection of newly created md arrays. (diff) | |
| download | linux-dev-0544a21db02c1d8883158fd6f323364f830a120a.tar.xz linux-dev-0544a21db02c1d8883158fd6f323364f830a120a.zip | |
md: raid10: Fix null pointer dereference in fix_read_error()
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().
Cc: stable@kernel.org
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>
Diffstat (limited to 'drivers/acpi/debug.c')
0 files changed, 0 insertions, 0 deletions