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| author | Sanju Rakonde <srakonde@redhat.com> | 2017-10-18 08:06:24 +0530 |
|---|---|---|
| committer | Shyamsundar Ranganathan <srangana@redhat.com> | 2017-10-25 14:00:31 +0000 |
| commit | e45b2a08222bd432e06c3b907bbeee4463e3d2a2 (patch) | |
| tree | a36da2c796c241678e76ad1af4adb664e731f0ae | |
| parent | 83615a663c1ac17812c8417dc56b85be600d17e3 (diff) | |
glusterfsd: Dereferencing the null pointer
Problem: When control reaches to out, one of (iobref, iobuf, frame) can
be null.for iobref, iobuf iobref_unref() and iobuf_unref() functions
are called respectively, which are using GF_VALIDATE_OR_GOTO(), so
there won't be null pointer dereference. But for frame without null
checking STACK_DESTROY(frame->root) is called causing null pointer
dereference.
Fix: adding a line for null checking, the function
STACK_DESTROY(frame->root) is called only when frame is not null.
Change-Id: I3a6684c11fb7b694b81d6ad4fec3bced5562ad88
BUG: 1502928
Signed-off-by: Sanju Rakonde <srakonde@redhat.com>
(cherry picked from commit 87bd25b64ae34cce95e87e724acfeab4c13d60a4)
| -rw-r--r-- | glusterfsd/src/gf_attach.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/glusterfsd/src/gf_attach.c b/glusterfsd/src/gf_attach.c index 05119e4f4ca..3f248292ddf 100644 --- a/glusterfsd/src/gf_attach.c +++ b/glusterfsd/src/gf_attach.c @@ -144,7 +144,8 @@ out: iobref_unref (iobref); iobuf_unref (iobuf); - STACK_DESTROY (frame->root); + if (frame) + STACK_DESTROY (frame->root); if (rpc_status != 0) { fprintf (stderr, "got error %d on RPC\n", rpc_status); |