a9712ec8ea
- Adding upstream patch to silence bogus error message when backing-store directory not present (bsc#954801), adding patch: * tgt-missing-module-directory-not-an-error - Added upstream patch to handle possible target removal while accessing it (bsc#922526), adding patch: * tgt-handle-access-of-a-target-that-has-been-removed OBS-URL: https://build.opensuse.org/request/show/344818 OBS-URL: https://build.opensuse.org/package/show/Base:System/tgt?expand=0&rev=35
56 lines
1.7 KiB
Plaintext
56 lines
1.7 KiB
Plaintext
From: Lee Duncan <lduncan@suse.com>
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Date: Wed, 28 Oct 2015 14:16:13 +0900
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Subject: Handle access of a target that has been removed
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Git-commit: 2791ed243ab2a2fcfe48aea4a0cc23f4ad8467dc
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Patch-mainline: v1.0.61
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I recently got a report of a tgtd core dump from our opencloud
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group. The stack trace showed that a strcmp against a NULL was causing
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the failure:
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----------------------------------------------------------------
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Program terminated with signal 11, Segmentation fault.
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(gdb) bt
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name=0x6ac16f "iqn.2010-10.org.openstack:volume-e812c705-80bc-4064-a84c-5559cda8b1ca") at iscsi/target.c:216
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at iscsi/iscsid.c:654
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events=1, data=0x63a480 <target_list>) at iscsi/iscsi_tcp.c:158
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----------------------------------------------------------------
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It looks like target_find_by_name() uses tgt_targetname(), but doesn't
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account for the fact that it can return a NULL when the target being
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looked up does not (now) exist:
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----------------------------------------------------------------
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char *tgt_targetname(int tid)
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{
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struct target *target;
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target = target_lookup(tid);
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if (!target)
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return NULL;
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return target->name;
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}
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Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
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Acked-by: Lee Duncan <lduncan@suse.com>
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---
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usr/iscsi/target.c | 4 +++-
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1 file changed, 3 insertions(+), 1 deletion(-)
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--- a/usr/iscsi/target.c
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+++ b/usr/iscsi/target.c
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@@ -369,9 +369,11 @@ void target_list_build(struct iscsi_conn
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struct iscsi_target *target_find_by_name(const char *name)
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{
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struct iscsi_target *target;
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+ char *tname;
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list_for_each_entry(target, &iscsi_targets_list, tlist) {
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- if (!strcmp(tgt_targetname(target->tid), name))
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+ tname = tgt_targetname(target->tid);
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+ if (tname && !strcmp(tname, name))
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return target;
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}
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