[Cluster-devel] Cluster Project branch, STABLE2, updated. cluster-2.02.00-14-g31b6d55
ccaulfield at sourceware.org
ccaulfield at sourceware.org
Thu Mar 13 16:44:45 UTC 2008
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from 088cad7ce9f46b501fcfd8475c71e0909a86d895 (commit)
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- Log -----------------------------------------------------------------
commit 31b6d55cadb4aa87a76d907dc2fa7696fda89379
Author: Christine Caulfield <ccaulfie at redhat.com>
Date: Thu Mar 13 16:44:00 2008 +0000
[DLM] Don't segfault if lvbptr is NULL
Calling dlm_lock* with LKF_VALBLK and sb_lvbptr set
to NULL could cause libdlm to segfault.
Now it returns -1/EINVAL
Signed-off-by: Christine Caulfield <ccaulfie at redhat.com>
-----------------------------------------------------------------------
Summary of changes:
dlm/lib/libdlm.c | 5 +++++
1 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/dlm/lib/libdlm.c b/dlm/lib/libdlm.c
index 28a3cc7..7464085 100644
--- a/dlm/lib/libdlm.c
+++ b/dlm/lib/libdlm.c
@@ -889,6 +889,11 @@ static int ls_lock(dlm_lshandle_t ls,
return -1;
}
+ if (flags & LKF_VALBLK && !lksb->sb_lvbptr) {
+ errno = EINVAL;
+ return -1;
+ }
+
if (kernel_version.version[0] == 5)
return ls_lock_v5(ls, mode, lksb, flags, name, namelen, parent,
astaddr, astarg, bastaddr);
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