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| author | Hans de Goede <hdegoede@redhat.com> | 2014-09-13 12:26:32 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-09-23 21:42:10 -0700 |
| commit | 5e61aede477ee108de3f9e57f19cacd8ce3ffe52 (patch) | |
| tree | f02bddfe141a29490935ef859f779523afde94a9 /lib | |
| parent | e0620001e4e318d85ebf43a95eec15fae26ed706 (diff) | |
| download | linux-5e61aede477ee108de3f9e57f19cacd8ce3ffe52.tar.gz linux-5e61aede477ee108de3f9e57f19cacd8ce3ffe52.tar.bz2 linux-5e61aede477ee108de3f9e57f19cacd8ce3ffe52.zip | |
uas: Do not use scsi_host_find_tag
Using scsi_host_find_tag with tags returned by the device is unsafe for
multiple reasons:
1) It returns tags->rqs[tag], which may be non NULL even when the cmnd is
not owned by us
2) It returns tags->rqs[tag], without holding any locks protecting it
3) It returns tags->rqs[tag], without doing any boundary checking
Instead keep our own list which maps tags -> inflight cmnds.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'lib')
0 files changed, 0 insertions, 0 deletions