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Bug 764704 (GLUSTER-2972)

Summary: Buffer overflow in nfs3_create_exclusive.
Product: [Community] GlusterFS Reporter: Gaurav <ggangalw>
Component: nfsAssignee: Gaurav <ggangalw>
Severity: medium Docs Contact:
Priority: medium    
Version: 3.1.3CC: gluster-bugs, saurabh
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Target Release: ---   
Hardware: x86_64   
OS: Linux   
Fixed In Version: Doc Type: Bug Fix
Doc Text:
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Last Closed: Type: ---
Regression: --- Mount Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description Anand Avati 2011-06-01 00:29:49 EDT
PATCH: in master (NFS : Handle buffer overflow in nfs3_create_exclusive.)
Comment 1 Anand Avati 2011-06-01 00:29:54 EDT
PATCH: in release-3.1 (NFS : Handle buffer overflow in nfs3_create_exclusive.)
Comment 2 Anand Avati 2011-06-01 00:30:00 EDT
PATCH: in release-3.2 (NFS : Handle buffer overflow in nfs3_create_exclusive.)
Comment 3 Gaurav 2011-06-01 00:35:53 EDT
cs->stbuf.ia_atime = (cs->cookieverf & 0xFFFFFFFF00000000);
cs->stbuf.ia_mtime = (cs->cookieverf & 0x00000000FFFFFFFF);

ia_atime aand ia_mtime are 32 bit variables.
Comment 4 Saurabh 2011-06-01 05:54:14 EDT
Hey Gaurav,

  can you suggest what are changes that went to fix this bug? Also, some test plan.
Comment 5 Saurabh 2011-06-02 23:47:10 EDT
For this test, I tried to run posix and iozone, though the issue is related to memory and hard to reproduce, but still tried to verify using Iozone, and it passed. The test was over nfs mount on a 3.2.1qa2 build.