From 37494cc8006a415d4d03f75cbf66ecb4083f71bb Mon Sep 17 00:00:00 2001 From: mjacob Date: Tue, 2 Oct 2001 18:34:20 +0000 Subject: Fix problem where a user buffer outside of the area being tested will be corrupted. PR: 29194 Obtained from: Tor.Egge@fast.no MFC after: 2 weeks --- sys/powerpc/aim/vm_machdep.c | 2 +- sys/powerpc/powerpc/vm_machdep.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) (limited to 'sys/powerpc') diff --git a/sys/powerpc/aim/vm_machdep.c b/sys/powerpc/aim/vm_machdep.c index c2110bb..baf59a0 100644 --- a/sys/powerpc/aim/vm_machdep.c +++ b/sys/powerpc/aim/vm_machdep.c @@ -218,7 +218,7 @@ vmapbuf(bp) * Do the vm_fault if needed; do the copy-on-write thing * when reading stuff off device into memory. */ - vm_fault_quick(addr, + vm_fault_quick((addr >= bp->b_data) ? addr : bp->b_data, (bp->b_iocmd == BIO_READ)?(VM_PROT_READ|VM_PROT_WRITE):VM_PROT_READ); pa = trunc_page(pmap_kextract((vm_offset_t) addr)); if (pa == 0) diff --git a/sys/powerpc/powerpc/vm_machdep.c b/sys/powerpc/powerpc/vm_machdep.c index c2110bb..baf59a0 100644 --- a/sys/powerpc/powerpc/vm_machdep.c +++ b/sys/powerpc/powerpc/vm_machdep.c @@ -218,7 +218,7 @@ vmapbuf(bp) * Do the vm_fault if needed; do the copy-on-write thing * when reading stuff off device into memory. */ - vm_fault_quick(addr, + vm_fault_quick((addr >= bp->b_data) ? addr : bp->b_data, (bp->b_iocmd == BIO_READ)?(VM_PROT_READ|VM_PROT_WRITE):VM_PROT_READ); pa = trunc_page(pmap_kextract((vm_offset_t) addr)); if (pa == 0) -- cgit v1.1