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authorNiels de Vos <ndevos@redhat.com>2016-09-13 09:03:56 +0200
committerNiels de Vos <ndevos@redhat.com>2016-10-11 00:14:00 -0700
commit85e959052148ec481823d55c8b91cdee36da2b43 (patch)
tree18c1d1c977912a58a6b9dbfe9ec99325ae262d40 /api/src/gfapi.map
parent2e23c62cc50037c8e61bcd9c04348409e7627181 (diff)
gfapi: warn when glfs_realpath() returned malloc'd memory
glfs_realpath() may return memory allocated with malloc(). Depending on the memory allocator that the application uses, calling free() on the returned string can cause segmentation faults or other problems. Functions that allocate memory, need to match the free'ing of the same memory allocator and memory accounting. glibc/malloc and jemalloc/free do not match together (other allocators could probably trigger these problems as well). Applications need to provide a pre-allocated buffer, or in case glfs_realpath() allocates the memory, glfs_free() should be used to free it. Change-Id: I5d721a7425674aa700db8a7a436cbedb95a5927f BUG: 1370931 Signed-off-by: Niels de Vos <ndevos@redhat.com> Reviewed-on: http://review.gluster.org/15332 CentOS-regression: Gluster Build System <jenkins@build.gluster.org> Smoke: Gluster Build System <jenkins@build.gluster.org> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com>
Diffstat (limited to 'api/src/gfapi.map')
-rw-r--r--api/src/gfapi.map5
1 files changed, 5 insertions, 0 deletions
diff --git a/api/src/gfapi.map b/api/src/gfapi.map
index bd7ff13fe41..1ae6d4665fc 100644
--- a/api/src/gfapi.map
+++ b/api/src/gfapi.map
@@ -188,6 +188,11 @@ GFAPI_3.7.16 {
glfs_upcall_inode_get_oldpstat;
} GFAPI_3.7.15;
+GFAPI_3.7.17 {
+ global:
+ glfs_realpath;
+} GFAPI_3.7.16;
+
GFAPI_4.0.0 {
global:
glfs_ipc;