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NFSD: fix a leak which can cause CREATE_SESSION failures

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check_forechannel_attrs gets drc memory, so nfsd must put it when
check_backchannel_attrs fails.

After many requests with bad back channel attrs, nfsd will deny any
client's CREATE_SESSION forever.

A new test case named CSESS29 for pynfs will send in another mail.

Signed-off-by: Kinglong Mee <kinglongmee@gmail.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
This commit is contained in:
Kinglong Mee 2013-12-23 17:31:21 +08:00 committed by J. Bruce Fields
parent 2ce02b6b6c
commit f403e450e8
1 changed files with 1 additions and 1 deletions
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2
fs/nfsd/nfs4state.c
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@ -1915,7 +1915,7 @@ nfsd4_create_session(struct svc_rqst *rqstp,
return status; return status;
status = check_backchannel_attrs(&cr_ses->back_channel); status = check_backchannel_attrs(&cr_ses->back_channel);
if (status) if (status)
return status; goto out_release_drc_mem;
status = nfserr_jukebox; status = nfserr_jukebox;
new = alloc_session(&cr_ses->fore_channel); new = alloc_session(&cr_ses->fore_channel);
if (!new) if (!new)