summaryrefslogtreecommitdiffstats
path: root/lib/libc/stdio/refill.c
diff options
context:
space:
mode:
authorrwatson <rwatson@FreeBSD.org>2006-02-11 19:19:29 +0000
committerrwatson <rwatson@FreeBSD.org>2006-02-11 19:19:29 +0000
commitf2e35917b92b0b836e80ed2b2e95664b7e8aaa0f (patch)
tree4ab4b5173d45acb311a0f6f5eb17e395c2da6a99 /lib/libc/stdio/refill.c
parentc1cbeeaeb19973cbf315fbadd0c28b95dc18120f (diff)
downloadFreeBSD-src-f2e35917b92b0b836e80ed2b2e95664b7e8aaa0f.zip
FreeBSD-src-f2e35917b92b0b836e80ed2b2e95664b7e8aaa0f.tar.gz
The uma_zone data structure defines the size of its uz_cpu[] array as 1,
but then sizes the containing data structure at run-time to make room for per-cpu cache data. Modify libmemstat to separately allocate a buffer to hold per-cpu cache data, sized based on the run-time mp_maxid variable when using libkvm to access UMA data. This avoids reading invalid cache data from beyond the end of the uma_zone data structure on the stack, which can result in invalid statistics and/or reads from invalid kernel addresses. Foot target practice by: ps MFC after: 3 days
Diffstat (limited to 'lib/libc/stdio/refill.c')
0 files changed, 0 insertions, 0 deletions
OpenPOWER on IntegriCloud