Messages in this thread | | | From | Oliver Neukum <> | Subject | Re: [PATCH] Check copy_*_user return value in drivers/block/scsi_ioctl.c | Date | Sun, 25 May 2003 18:54:38 +0200 |
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Am Sonntag, 25. Mai 2003 18:28 schrieb Jens Axboe: > On Sun, May 25 2003, Paulo Andre' wrote: > > Hi Jens, > > > > Please find attached a trivial patch that checks both > > copy_to_user() and copy_from_user() returns values in scsi_ioctl.c, > > returning accordinly in case of a transfer error. > > See above, we've already done access_ok() on the buffer so the > "unchecked" copy_to/from_user are done that way on purpose. I suppose it > could be made more explicit with __copy_to/from_user().
Doesn't this race with munmap on SMP?
Regards Oliver
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