CVE-2026-72042

CVE CVE-2026-72042EUVD EUVD-2026-59000Published 2026-08-15T05:52:01.000ZLast changed 2026-08-17T05:39:41.000ZCVSS 7.8

What the advisory describes

In the Linux kernel, the following vulnerability has been resolved: ipmi: Fix user refcount underflow in event delivery 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(). That rollback path still drops user->refcount explicitly after freeing each message. The extra put can free a user that remains linked on intf->users, so later event delivery may dereference a freed user or trip refcount_t's addition-on-zero warning when ipmi_alloc_recv_msg() tries to acquire another reference. 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.

Source: EUVD (ENISA), in the words of the advisory.

Products the advisory names

These come from the advisory itself, not from any check we performed.

Linux — Linux 348121b29594d42d1635648fd3ed31dfa25351d5; b52da4054ee0bf9ecb44996f2c83236ff50b3812 <ddbb6e3dc9bb4743de686aa1598c31e745cee76b; 0ed73be9a2547ffb9b5c1d879ad9bfab73d920b5; b52da4054ee0bf9ecb44996f2c83236ff50b3812 <7be349d4fcc5e065295b83418a22d27a68afbdb6; patch: 7.2; 6.6.113 <6.7; 6.12.54 <6.13; patch: 6.18.40; f63723ca7d7623f9dae1990973cd158671f03c56; 53d6e403affbf6df2c859a0ea00ccfc1e72090ca; b52da4054ee0bf9ecb44996f2c83236ff50b3812 <6aa9e61c46465d231e9beddf56af7effd71be682; 6.18; patch: 0; patch: 7.1.5; 6.17.4 <6.18; 6.1.157 <6.2

The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.

Carried in the product catalogue

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Linux — Linux

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