| Summary: | Segmentation fault in glusterfs_getxattr | ||
|---|---|---|---|
| Product: | [Community] GlusterFS | Reporter: | Raghavendra G <raghavendra> |
| Component: | libglusterfsclient | Assignee: | Raghavendra G <raghavendra> |
| Status: | CLOSED CURRENTRELEASE | QA Contact: | |
| Severity: | low | Docs Contact: | |
| Priority: | low | ||
| Version: | 2.0.6 | CC: | gluster-bugs, mjshin |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | Type: | --- | |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
|
Description
Raghavendra G
2009-08-26 07:42:30 UTC
Reported in gluster-devel mailing list.
When I call glusterfs_getxattr, I received 'Segmentation fault' error like the following:
-------------------------------------------
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread -1209996640 (LWP 16114)]
0xb7ebc046 in free () from /lib/tls/libc.so.6
(gdb) bt
#0 0xb7ebc046 in free () from /lib/tls/libc.so.6
#1 0xb7f9c611 in __glusterfs_glh_getxattr (handle=0xb7f854c0,
path=0x808fc80 "/r/rest_test_nodelete/hello_70301.txt",
name=0x8090206 "hello_70301.txt", value=0x804a008, size=1024, whichop=1)
at libglusterfsclient.c:2273
#2 0xb7f9c944 in glusterfs_getxattr (
path=0x8048af8 "/home/minjae/gluster_test/libglusterfs/mount/r/rest_test_nodelete/hello_70301.txt", name=0x8048bbd "user.test", value=0x804a008, size=1024)
at libglusterfsclient.c:2327
#3 0x0804886d in main () at test.c:54
-------------------------------------------
The attribute name was "user.test" in #3, but this was changed to "hello_70301.txt" in #2.
About some files, glusterfs_getxattr is working well, but sometimes working strange including this.
The bug is in __glusterfs_glh_getxattr, where a pointer pointing to basename is freed, instead of pointer pointing to the entire path.
The patch is working well. Thank you. PATCH: http://patches.gluster.com/patch/1170 in master (libglusterfsclient: don't use pointer returned by basename while freeing allocated memory.) PATCH: http://patches.gluster.com/patch/1169 in release-2.0 (libglusterfsclient: don't use pointer returned from basename to free allocated memory.) |