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Fix segmentation fault problem.

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When execute iscsi_task_mgmt_lun_reset_async function,
pdus are already removed from waitpdu list. In iscsi_service
function, this will call iscsi_process_pdu and release
pdu from waitpdu again, which cause segmentation fault.

Whether waitpud list is NULL should be checked here to avoid
the problem.

Signed-off-by: geruijun <geruijun@huawei.com>
This commit is contained in:
sallyjunjun
2022-06-15 10:14:36 +08:00
committed by Bart Van Assche
parent 8ef5d8243b
commit 1017435ca9
1 changed files with 1 additions and 1 deletions
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lib/pdu.c
+1 -1
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@@ -622,7 +622,7 @@ iscsi_process_pdu(struct iscsi_context *iscsi, struct iscsi_in_pdu *in)
return -1; return -1;
} }
if (is_finished) { if (is_finished && iscsi->waitpdu != NULL) {
ISCSI_LIST_REMOVE(&iscsi->waitpdu, pdu); ISCSI_LIST_REMOVE(&iscsi->waitpdu, pdu);
iscsi->drv->free_pdu(iscsi, pdu); iscsi->drv->free_pdu(iscsi, pdu);
} }