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When running a 32bit app. on amd64, ensure the bits above 32bit

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are zero for the copyout.  Confirmed by LSI.
This commit is contained in:
Doug Ambrisko 2008-11-14 21:05:45 +00:00
parent 335317d291
commit b89b182c58
1 changed files with 15 additions and 0 deletions
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15
sys/dev/mfi/mfi.c
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@ -2130,6 +2130,14 @@ mfi_ioctl(struct cdev *dev, u_long cmd, caddr_t arg, int flag, d_thread_t *td)
->mfi_frame.raw[ioc->mfi_sense_off],
&sense_ptr.sense_ptr_data[0],
sizeof(sense_ptr.sense_ptr_data));
#ifdef __amd64__
if (cmd != MFI_CMD) {
/*
* not 64bit native so zero out any address
* over 32bit */
sense_ptr.high = 0;
}
#endif
error = copyout(cm->cm_sense, sense_ptr.user_space,
ioc->mfi_sense_len);
if (error != 0) {
@ -2353,6 +2361,13 @@ mfi_linux_ioctl_int(struct cdev *dev, u_long cmd, caddr_t arg, int flag, d_threa
->lioc_frame.raw[l_ioc.lioc_sense_off],
&sense_ptr.sense_ptr_data[0],
sizeof(sense_ptr.sense_ptr_data));
#ifdef __amd64__
/*
* only 32bit Linux support so zero out any
* address over 32bit
*/
sense_ptr.high = 0;
#endif
error = copyout(cm->cm_sense, sense_ptr.user_space,
l_ioc.lioc_sense_len);
if (error != 0) {