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| author | Olaf Kirch <olaf.kirch@oracle.com> | 2007-12-13 12:43:36 -0600 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@HansenPartnership.com> | 2008-01-11 18:28:43 -0600 |
| commit | 03766a1d4e4520066d3ed2097bfdf6e606aba828 (patch) | |
| tree | 56757a1710b8f1f2e0b243a5d727c7e24de6f210 /drivers/scsi/iscsi_tcp.c | |
| parent | a8ac6311cc21d78fa284cd43f56df2063f536bf1 (diff) | |
| download | linux-03766a1d4e4520066d3ed2097bfdf6e606aba828.tar.gz linux-03766a1d4e4520066d3ed2097bfdf6e606aba828.tar.bz2 linux-03766a1d4e4520066d3ed2097bfdf6e606aba828.zip | |
[SCSI] iscsi_tcp: stop leaking r2t_info's when the incoming R2T is bad
iscsi_r2t_rsp checks the incoming R2T for sanity, and if it
thinks it's fishy, it will drop it silently. In this case, we
leaked an r2t_info object. If we do this often enough, we run
into a BUG_ON some time later.
Removed r2t wrappers and update patch by Mike Christie
Signed-off-by: Olaf Kirch <olaf.kirch@oracle.com>
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Diffstat (limited to 'drivers/scsi/iscsi_tcp.c')
| -rw-r--r-- | drivers/scsi/iscsi_tcp.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/scsi/iscsi_tcp.c b/drivers/scsi/iscsi_tcp.c index 7212fe95a66d..ecba606e6521 100644 --- a/drivers/scsi/iscsi_tcp.c +++ b/drivers/scsi/iscsi_tcp.c @@ -658,6 +658,8 @@ iscsi_r2t_rsp(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask) r2t->data_length = be32_to_cpu(rhdr->data_length); if (r2t->data_length == 0) { printk(KERN_ERR "iscsi_tcp: invalid R2T with zero data len\n"); + __kfifo_put(tcp_ctask->r2tpool.queue, (void*)&r2t, + sizeof(void*)); spin_unlock(&session->lock); return ISCSI_ERR_DATALEN; } @@ -669,10 +671,12 @@ iscsi_r2t_rsp(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask) r2t->data_offset = be32_to_cpu(rhdr->data_offset); if (r2t->data_offset + r2t->data_length > scsi_bufflen(ctask->sc)) { - spin_unlock(&session->lock); printk(KERN_ERR "iscsi_tcp: invalid R2T with data len %u at " "offset %u and total length %d\n", r2t->data_length, r2t->data_offset, scsi_bufflen(ctask->sc)); + __kfifo_put(tcp_ctask->r2tpool.queue, (void*)&r2t, + sizeof(void*)); + spin_unlock(&session->lock); return ISCSI_ERR_DATALEN; } |