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D24737.diff
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Index: head/sys/kern/kern_mib.c
===================================================================
--- head/sys/kern/kern_mib.c
+++ head/sys/kern/kern_mib.c
@@ -231,6 +231,7 @@
sysctl_hw_pagesizes(SYSCTL_HANDLER_ARGS)
{
int error;
+ size_t len;
#ifdef SCTL_MASK32
int i;
uint32_t pagesizes32[MAXPAGESIZES];
@@ -243,10 +244,18 @@
for (i = 0; i < MAXPAGESIZES; i++)
pagesizes32[i] = (uint32_t)pagesizes[i];
- error = SYSCTL_OUT(req, pagesizes32, sizeof(pagesizes32));
+ len = sizeof(pagesizes32);
+ if (len > req->oldlen)
+ len = req->oldlen;
+ error = SYSCTL_OUT(req, pagesizes32, len);
} else
#endif
- error = SYSCTL_OUT(req, pagesizes, sizeof(pagesizes));
+ {
+ len = sizeof(pagesizes);
+ if (len > req->oldlen)
+ len = req->oldlen;
+ error = SYSCTL_OUT(req, pagesizes, len);
+ }
return (error);
}
SYSCTL_PROC(_hw, OID_AUTO, pagesizes,
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D24737.diff (875 B)
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D24737: Avoid spurious ENOMEMs from sysctl hw.pagesizes.
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