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rxrpc: Fix uninitialised variable in rxrpc_send_data()
Fix the uninitialised txb variable in rxrpc_send_data() by moving the code
that loads it above all the jumps to maybe_error, txb being stored back
into call->tx_pending right before the normal return.
Fixes: b0f571ecd7
("rxrpc: Fix locking in rxrpc's sendmsg")
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Closes: https://lists.infradead.org/pipermail/linux-afs/2024-October/008896.html
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Marc Dionne <marc.dionne@auristor.com>
cc: linux-afs@lists.infradead.org
Link: https://patch.msgid.link/20241001132702.3122709-3-dhowells@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
parent
bc21246532
commit
7a310f8d7d
@ -303,6 +303,11 @@ static int rxrpc_send_data(struct rxrpc_sock *rx,
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sk_clear_bit(SOCKWQ_ASYNC_NOSPACE, sk);
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reload:
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txb = call->tx_pending;
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call->tx_pending = NULL;
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if (txb)
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rxrpc_see_txbuf(txb, rxrpc_txbuf_see_send_more);
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ret = -EPIPE;
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if (sk->sk_shutdown & SEND_SHUTDOWN)
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goto maybe_error;
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@ -329,11 +334,6 @@ reload:
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goto maybe_error;
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}
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txb = call->tx_pending;
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call->tx_pending = NULL;
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if (txb)
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rxrpc_see_txbuf(txb, rxrpc_txbuf_see_send_more);
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do {
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if (!txb) {
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size_t remain;
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