https://vulnerability.circl.lu Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Fri, 02 Oct 2026 15:25:27 +0000 https://vulnerability.circl.lu/vuln/cve-2026-72042 <p><strong>Affected:</strong> Linux</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>ipmi: Fix user refcount underflow in event delivery</p> <p>ipmi_alloc_recv_msg(user) takes the temporary user reference owned by the receive message, and ipmi_free_recv_msg() drops it again. If event delivery fails after allocating receive messages for earlier users, handle_read_event_rsp() rolls those messages back with ipmi_free_recv_msg().</p> <p>That rollback path still drops user-&gt;refcount explicitly after freeing each message. The extra put can free a user that remains linked on intf-&gt;users, so later event delivery may dereference a freed user or trip refcount_t&#39;s addition-on-zero warning when ipmi_alloc_recv_msg() tries to acquire another reference.</p> <p>Remove the stale explicit put and the now-dead user assignment. Keep the list_del() and ipmi_free_recv_msg() calls; they are the required rollback operations.</p> <p><strong>Affected:</strong> Linux</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>ipmi: Fix user refcount underflow in event delivery</p> <p>ipmi_alloc_recv_msg(user) takes the temporary user reference owned by the receive message, and ipmi_free_recv_msg() drops it again. If event delivery fails after allocating receive messages for earlier users, handle_read_event_rsp() rolls those messages back with ipmi_free_recv_msg().</p> <p>That rollback path still drops user-&gt;refcount explicitly after freeing each message. The extra put can free a user that remains linked on intf-&gt;users, so later event delivery may dereference a freed user or trip refcount_t&#39;s addition-on-zero warning when ipmi_alloc_recv_msg() tries to acquire another reference.</p> <p>Remove the stale explicit put and the now-dead user assignment. Keep the list_del() and ipmi_free_recv_msg() calls; they are the required rollback operations.</p> https://vulnerability.circl.lu/vuln/cve-2026-72042