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Specify correct MIB length 

Could have resulted in a buffer overflow if the
FreeBSD kernel returned more bytes than expected.
This commit is contained in:
Ross Williams 2019-07-06 04:27:00 +00:00
parent 402e46bb82
commit 92258e99e6
1 changed files with 1 additions and 1 deletions
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2
freebsd/FreeBSDProcessList.c
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@ -121,7 +121,7 @@ ProcessList* ProcessList_new(UsersTable* usersTable, Hashtable* pidWhiteList, ui
len = sizeof(fpl->memZfsArc); len = sizeof(fpl->memZfsArc);
if (sysctlbyname("kstat.zfs.misc.arcstats.size", &fpl->memZfsArc, &len, if (sysctlbyname("kstat.zfs.misc.arcstats.size", &fpl->memZfsArc, &len,
NULL, 0) == 0 && fpl->memZfsArc != 0) { NULL, 0) == 0 && fpl->memZfsArc != 0) {
sysctlnametomib("kstat.zfs.misc.arcstats.size", MIB_kstat_zfs_misc_arcstats_size, &len); len = 5; sysctlnametomib("kstat.zfs.misc.arcstats.size", MIB_kstat_zfs_misc_arcstats_size, &len);
fpl->zfsArcEnabled = 1; fpl->zfsArcEnabled = 1;
} else { } else {
fpl->zfsArcEnabled = 0; fpl->zfsArcEnabled = 0;