| commit | 5c20dc7633ed54a3794378695934ec949b2354d5 | |
| author | Dan Rosenberg <drosenberg@vsecurity.com> | |
| Tue, 5 Apr 2011 16:45:59 +0000 (5 12:45 -0400) | ||
| committer | Greg Kroah-Hartman <gregkh@suse.de> | |
| Mon, 9 May 2011 23:04:42 +0000 (9 16:04 -0700) | ||
| tree | 3375e487283b89edfa3a938e4fe4d247cf441c08 | treesnapshot (tar.gz zip) |
| parent | 65d9b49fc245340fdb950a0842745acc88fafaba | commitdiff |
mpt2sas: prevent heap overflows and unchecked reads
commit a1f74ae82d133ebb2aabb19d181944b4e83e9960 upstream.
At two points in handling device ioctls via /dev/mpt2ctl, user-supplied
length values are used to copy data from userspace into heap buffers
without bounds checking, allowing controllable heap corruption and
subsequently privilege escalation.
Additionally, user-supplied values are used to determine the size of a
copy_to_user() as well as the offset into the buffer to be read, with no
bounds checking, allowing users to read arbitrary kernel memory.
Signed-off-by: Dan Rosenberg <drosenberg@vsecurity.com>
Acked-by: Eric Moore <eric.moore@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
commit a1f74ae82d133ebb2aabb19d181944b4e83e9960 upstream.
At two points in handling device ioctls via /dev/mpt2ctl, user-supplied
length values are used to copy data from userspace into heap buffers
without bounds checking, allowing controllable heap corruption and
subsequently privilege escalation.
Additionally, user-supplied values are used to determine the size of a
copy_to_user() as well as the offset into the buffer to be read, with no
bounds checking, allowing users to read arbitrary kernel memory.
Signed-off-by: Dan Rosenberg <drosenberg@vsecurity.com>
Acked-by: Eric Moore <eric.moore@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| drivers/scsi/mpt2sas/mpt2sas_ctl.c | diffblobblamehistory |