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pimd: Avoid reading freed memory.

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If the upstream is freed in pim_upstream_del, then trying to
call pim_upstream_timers_stop will lead to accessing freed memory.

Fix:
Stop the timer only if upstream is not deleted.

Co-authored-by: Sarita Patra <saritap@vmware.com>
Co-authored-by: Mobashshera Rasool <mrasool@vmware.com>
Signed-off-by: Mobashshera Rasool <mrasool@vmware.com>
This commit is contained in:
Mobashshera Rasool 2022-06-23 23:47:09 -07:00
parent 8a8fd10a47
commit 30247bd637
1 changed files with 2 additions and 2 deletions
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4
pimd/pim_upstream.c
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@ -1948,8 +1948,8 @@ void pim_upstream_terminate(struct pim_instance *pim)
struct pim_upstream *up;
while ((up = rb_pim_upstream_first(&pim->upstream_head))) {
pim_upstream_del(pim, up, __func__);
pim_upstream_timers_stop(up);
if (pim_upstream_del(pim, up, __func__))
pim_upstream_timers_stop(up);
}
rb_pim_upstream_fini(&pim->upstream_head);