Upstream information

CVE-2024-26923 at MITRE

Description

In the Linux kernel, the following vulnerability has been resolved: af_unix: Fix garbage collector racing against connect() Garbage collector does not take into account the risk of embryo getting enqueued during the garbage collection. If such embryo has a peer that carries SCM_RIGHTS, two consecutive passes of scan_children() may see a different set of children. Leading to an incorrectly elevated inflight count, and then a dangling pointer within the gc_inflight_list. sockets are AF_UNIX/SOCK_STREAM S is an unconnected socket L is a listening in-flight socket bound to addr, not in fdtable V's fd will be passed via sendmsg(), gets inflight count bumped connect(S, addr) sendmsg(S, [V]); close(V) __unix_gc() ---------------- ------------------------- ----------- NS = unix_create1() skb1 = sock_wmalloc(NS) L = unix_find_other(addr) unix_state_lock(L) unix_peer(S) = NS // V count=1 inflight=0 NS = unix_peer(S) skb2 = sock_alloc() skb_queue_tail(NS, skb2[V]) // V became in-flight // V count=2 inflight=1 close(V) // V count=1 inflight=1 // GC candidate condition met for u in gc_inflight_list: if (total_refs == inflight_refs) add u to gc_candidates // gc_candidates={L, V} for u in gc_candidates: scan_children(u, dec_inflight) // embryo (skb1) was not // reachable from L yet, so V's // inflight remains unchanged __skb_queue_tail(L, skb1) unix_state_unlock(L) for u in gc_candidates: if (u.inflight) scan_children(u, inc_inflight_move_tail) // V count=1 inflight=2 (!) If there is a GC-candidate listening socket, lock/unlock its state. This makes GC wait until the end of any ongoing connect() to that socket. After flipping the lock, a possibly SCM-laden embryo is already enqueued. And if there is another embryo coming, it can not possibly carry SCM_RIGHTS. At this point, unix_inflight() can not happen because unix_gc_lock is already taken. Inflight graph remains unaffected.

SUSE information

Overall state of this security issue: Pending

This issue is currently rated as having moderate severity.

CVSS v3 Scores
  SUSE
Base Score 7
Vector CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity High
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High
CVSSv3 Version 3.1
SUSE Bugzilla entries: 1223384 [NEW], 1223683 [NEW]

No SUSE Security Announcements cross referenced.

List of packages in QA

Product(s) Package(s)
SUSE Linux Enterprise Module for Public Cloud 15 SP6
  • kernel-azure >= 6.4.0-150600.8.5.4
  • kernel-azure-devel >= 6.4.0-150600.8.5.4
  • kernel-devel-azure >= 6.4.0-150600.8.5.4
  • kernel-source-azure >= 6.4.0-150600.8.5.4
  • kernel-syms-azure >= 6.4.0-150600.8.5.1
SUSE Linux Enterprise Server 15 SP6
  • kernel-azure >= 6.4.0-150600.8.5.4
  • kernel-azure-devel >= 6.4.0-150600.8.5.4
  • kernel-devel-azure >= 6.4.0-150600.8.5.4
  • kernel-source-azure >= 6.4.0-150600.8.5.4
  • kernel-syms-azure >= 6.4.0-150600.8.5.1
SUSE Linux Enterprise Server for SAP Applications 15 SP6
  • kernel-azure >= 6.4.0-150600.8.5.4
  • kernel-azure-devel >= 6.4.0-150600.8.5.4
  • kernel-devel-azure >= 6.4.0-150600.8.5.4
  • kernel-source-azure >= 6.4.0-150600.8.5.4
  • kernel-syms-azure >= 6.4.0-150600.8.5.1
SUSE Linux Enterprise High Performance Computing 15 SP6
  • kernel-azure >= 6.4.0-150600.8.5.4
  • kernel-azure-devel >= 6.4.0-150600.8.5.4
  • kernel-devel-azure >= 6.4.0-150600.8.5.4
  • kernel-source-azure >= 6.4.0-150600.8.5.4
  • kernel-syms-azure >= 6.4.0-150600.8.5.1


Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.

Product(s) Source package State
Products under general support and receiving all security fixes.
SUSE Enterprise Storage 7.1 kernel-default Affected
SUSE Enterprise Storage 7.1 kernel-source Affected
SUSE Linux Enterprise Desktop 15 SP5 kernel-default Affected
SUSE Linux Enterprise Desktop 15 SP5 kernel-source Affected
SUSE Linux Enterprise Desktop 15 SP6 kernel-default Affected
SUSE Linux Enterprise Desktop 15 SP6 kernel-source Affected
SUSE Linux Enterprise High Performance Computing 12 SP5 kernel-azure Released
SUSE Linux Enterprise High Performance Computing 12 SP5 kernel-default Affected
SUSE Linux Enterprise High Performance Computing 12 SP5 kernel-source Affected
SUSE Linux Enterprise High Performance Computing 12 SP5 kernel-source-azure Released
SUSE Linux Enterprise High Performance Computing 12 SP5 kernel-syms-azure Released
SUSE Linux Enterprise High Performance Computing 15 SP5 kernel-azure Released
SUSE Linux Enterprise High Performance Computing 15 SP5 kernel-default Affected
SUSE Linux Enterprise High Performance Computing 15 SP5 kernel-source Affected
SUSE Linux Enterprise High Performance Computing 15 SP5 kernel-source-azure Released
SUSE Linux Enterprise High Performance Computing 15 SP5 kernel-syms-azure Released
SUSE Linux Enterprise High Performance Computing 15 SP6 kernel-azure In progress
SUSE Linux Enterprise High Performance Computing 15 SP6 kernel-default Affected
SUSE Linux Enterprise High Performance Computing 15 SP6 kernel-source Affected
SUSE Linux Enterprise High Performance Computing 15 SP6 kernel-source-azure In progress
SUSE Linux Enterprise High Performance Computing 15 SP6 kernel-syms-azure In progress
SUSE Linux Enterprise Micro 5.1 kernel-default Affected
SUSE Linux Enterprise Micro 5.1 kernel-rt Released
SUSE Linux Enterprise Micro 5.1 kernel-source-rt Released
SUSE Linux Enterprise Micro 5.2 kernel-default Affected
SUSE Linux Enterprise Micro 5.2 kernel-rt Released
SUSE Linux Enterprise Micro 5.2 kernel-source-rt Released
SUSE Linux Enterprise Micro 5.3 kernel-default Affected
SUSE Linux Enterprise Micro 5.3 kernel-rt Released
SUSE Linux Enterprise Micro 5.3 kernel-source-rt Released
SUSE Linux Enterprise Micro 5.4 kernel-default Affected
SUSE Linux Enterprise Micro 5.4 kernel-rt Released
SUSE Linux Enterprise Micro 5.4 kernel-source-rt Released
SUSE Linux Enterprise Micro 5.5 kernel-rt Released
SUSE Linux Enterprise Micro 5.5 kernel-source-rt Released
SUSE Linux Enterprise Micro for Rancher 5.2 kernel-rt Released
SUSE Linux Enterprise Micro for Rancher 5.2 kernel-source-rt Released
SUSE Linux Enterprise Micro for Rancher 5.3 kernel-rt Released
SUSE Linux Enterprise Micro for Rancher 5.3 kernel-source-rt Released
SUSE Linux Enterprise Micro for Rancher 5.4 kernel-rt Released
SUSE Linux Enterprise Micro for Rancher 5.4 kernel-source-rt Released
SUSE Linux Enterprise Module for Basesystem 15 SP5 kernel-default Affected
SUSE Linux Enterprise Module for Basesystem 15 SP5 kernel-source Affected
SUSE Linux Enterprise Module for Basesystem 15 SP6 kernel-default Affected
SUSE Linux Enterprise Module for Basesystem 15 SP6 kernel-source Affected
SUSE Linux Enterprise Module for Development Tools 15 SP5 kernel-default Affected
SUSE Linux Enterprise Module for Development Tools 15 SP5 kernel-source Affected
SUSE Linux Enterprise Module for Development Tools 15 SP6 kernel-default Affected
SUSE Linux Enterprise Module for Development Tools 15 SP6 kernel-source Affected
SUSE Linux Enterprise Module for Public Cloud 15 SP5 kernel-azure Released
SUSE Linux Enterprise Module for Public Cloud 15 SP5 kernel-source-azure Released
SUSE Linux Enterprise Module for Public Cloud 15 SP5 kernel-syms-azure Released
SUSE Linux Enterprise Module for Public Cloud 15 SP6 kernel-azure In progress
SUSE Linux Enterprise Module for Public Cloud 15 SP6 kernel-source-azure In progress
SUSE Linux Enterprise Module for Public Cloud 15 SP6 kernel-syms-azure In progress
SUSE Linux Enterprise Real Time 12 SP5 kernel-rt Released
SUSE Linux Enterprise Real Time 12 SP5 kernel-rt_debug Released
SUSE Linux Enterprise Real Time 12 SP5 kernel-source-rt Released
SUSE Linux Enterprise Real Time 12 SP5 kernel-syms-rt Released
SUSE Linux Enterprise Real Time 15 SP5 kernel-rt Released
SUSE Linux Enterprise Real Time 15 SP5 kernel-rt_debug Released
SUSE Linux Enterprise Real Time 15 SP5 kernel-source-rt Released
SUSE Linux Enterprise Real Time 15 SP5 kernel-syms-rt Released
SUSE Linux Enterprise Real Time 15 SP6 kernel-source-rt Affected
SUSE Linux Enterprise Server 12 SP5 kernel-azure Released
SUSE Linux Enterprise Server 12 SP5 kernel-default Affected
SUSE Linux Enterprise Server 12 SP5 kernel-source Affected
SUSE Linux Enterprise Server 12 SP5 kernel-source-azure Released
SUSE Linux Enterprise Server 12 SP5 kernel-syms-azure Released
SUSE Linux Enterprise Server 15 SP5 kernel-azure Released
SUSE Linux Enterprise Server 15 SP5 kernel-default Affected
SUSE Linux Enterprise Server 15 SP5 kernel-source Affected
SUSE Linux Enterprise Server 15 SP5 kernel-source-azure Released
SUSE Linux Enterprise Server 15 SP5 kernel-syms-azure Released
SUSE Linux Enterprise Server 15 SP6 kernel-azure In progress
SUSE Linux Enterprise Server 15 SP6 kernel-default Affected
SUSE Linux Enterprise Server 15 SP6 kernel-source Affected
SUSE Linux Enterprise Server 15 SP6 kernel-source-azure In progress
SUSE Linux Enterprise Server 15 SP6 kernel-syms-azure In progress
SUSE Linux Enterprise Server for SAP Applications 12 SP5 kernel-azure Released
SUSE Linux Enterprise Server for SAP Applications 12 SP5 kernel-default Affected
SUSE Linux Enterprise Server for SAP Applications 12 SP5 kernel-source Affected
SUSE Linux Enterprise Server for SAP Applications 12 SP5 kernel-source-azure Released
SUSE Linux Enterprise Server for SAP Applications 12 SP5 kernel-syms-azure Released
SUSE Linux Enterprise Server for SAP Applications 15 SP5 kernel-azure Released
SUSE Linux Enterprise Server for SAP Applications 15 SP5 kernel-default Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP5 kernel-source Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP5 kernel-source-azure Released
SUSE Linux Enterprise Server for SAP Applications 15 SP5 kernel-syms-azure Released
SUSE Linux Enterprise Server for SAP Applications 15 SP6 kernel-azure In progress
SUSE Linux Enterprise Server for SAP Applications 15 SP6 kernel-default Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP6 kernel-source Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP6 kernel-source-azure In progress
SUSE Linux Enterprise Server for SAP Applications 15 SP6 kernel-syms-azure In progress
SUSE Manager Proxy 4.3 kernel-default Affected
SUSE Manager Proxy 4.3 kernel-source Affected
SUSE Manager Retail Branch Server 4.3 kernel-default Affected
SUSE Manager Retail Branch Server 4.3 kernel-source Affected
SUSE Manager Server 4.3 kernel-default Affected
SUSE Manager Server 4.3 kernel-source Affected
SUSE Real Time Module 15 SP5 kernel-rt Released
SUSE Real Time Module 15 SP5 kernel-rt_debug Released
SUSE Real Time Module 15 SP5 kernel-source-rt Released
SUSE Real Time Module 15 SP5 kernel-syms-rt Released
SUSE Real Time Module 15 SP6 kernel-source-rt Affected
openSUSE Leap 15.5 kernel-azure Released
openSUSE Leap 15.5 kernel-default Affected
openSUSE Leap 15.5 kernel-rt Released
openSUSE Leap 15.5 kernel-rt_debug Released
openSUSE Leap 15.5 kernel-source Affected
openSUSE Leap 15.5 kernel-source-azure Released
openSUSE Leap 15.5 kernel-source-rt Released
openSUSE Leap 15.5 kernel-syms-azure Released
openSUSE Leap 15.5 kernel-syms-rt Released
openSUSE Leap 15.6 kernel-default Affected
openSUSE Leap 15.6 kernel-source Affected
openSUSE Leap 15.6 kernel-source-azure Affected
openSUSE Leap 15.6 kernel-source-rt Affected
openSUSE Leap Micro 5.4 kernel-rt Released
Products under Long Term Service Pack support and receiving important and critical security fixes.
SUSE Linux Enterprise Desktop 15 SP4 kernel-source Affected
SUSE Linux Enterprise High Performance Computing 15 SP2 kernel-source Affected
SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS kernel-source Affected
SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS kernel-default Affected
SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS kernel-source Affected
SUSE Linux Enterprise High Performance Computing 15 SP3 kernel-source Affected
SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS kernel-source Affected
SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS kernel-default Affected
SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS kernel-source Affected
SUSE Linux Enterprise High Performance Computing 15 SP4 kernel-source Affected
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS kernel-default Affected
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS kernel-source Affected
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS kernel-default Affected
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS kernel-source Affected
SUSE Linux Enterprise Module for Basesystem 15 SP2 kernel-source Affected
SUSE Linux Enterprise Module for Basesystem 15 SP3 kernel-source Affected
SUSE Linux Enterprise Module for Basesystem 15 SP4 kernel-source Affected
SUSE Linux Enterprise Module for Development Tools 15 SP2 kernel-source Affected
SUSE Linux Enterprise Module for Development Tools 15 SP3 kernel-source Affected
SUSE Linux Enterprise Module for Development Tools 15 SP4 kernel-source Affected
SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE kernel-default Affected
SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE kernel-source Affected
SUSE Linux Enterprise Server 15 SP2 kernel-source Affected
SUSE Linux Enterprise Server 15 SP2-LTSS kernel-default Affected
SUSE Linux Enterprise Server 15 SP2-LTSS kernel-source Affected
SUSE Linux Enterprise Server 15 SP3 kernel-source Affected
SUSE Linux Enterprise Server 15 SP3-LTSS kernel-default Affected
SUSE Linux Enterprise Server 15 SP3-LTSS kernel-source Affected
SUSE Linux Enterprise Server 15 SP4 kernel-source Affected
SUSE Linux Enterprise Server 15 SP4-LTSS kernel-default Affected
SUSE Linux Enterprise Server 15 SP4-LTSS kernel-source Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP2 kernel-default Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP2 kernel-source Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP3 kernel-default Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP3 kernel-source Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP4 kernel-default Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP4 kernel-source Affected
Products past their end of life and not receiving proactive updates anymore.
HPE Helion OpenStack 8 kernel-source Affected
SUSE CaaS Platform 4.0 kernel-source Affected
SUSE Enterprise Storage 6 kernel-source Affected
SUSE Enterprise Storage 7 kernel-source Affected
SUSE Linux Enterprise Desktop 12 SP3 kernel-source Affected
SUSE Linux Enterprise Desktop 12 SP4 kernel-source Affected
SUSE Linux Enterprise Desktop 15 kernel-source Affected
SUSE Linux Enterprise Desktop 15 SP1 kernel-source Affected
SUSE Linux Enterprise Desktop 15 SP2 kernel-source Affected
SUSE Linux Enterprise Desktop 15 SP3 kernel-source Affected
SUSE Linux Enterprise High Performance Computing 15 kernel-source Affected
SUSE Linux Enterprise High Performance Computing 15 SP1 kernel-source Affected
SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS kernel-source Affected
SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS kernel-source Affected
SUSE Linux Enterprise High Performance Computing 15-ESPOS kernel-source Affected
SUSE Linux Enterprise High Performance Computing 15-LTSS kernel-source Affected
SUSE Linux Enterprise Micro 5.0 kernel-default Affected
SUSE Linux Enterprise Module for Basesystem 15 kernel-source Affected
SUSE Linux Enterprise Module for Basesystem 15 SP1 kernel-source Affected
SUSE Linux Enterprise Module for Development Tools 15 kernel-source Affected
SUSE Linux Enterprise Module for Development Tools 15 SP1 kernel-source Affected
SUSE Linux Enterprise Real Time 15 SP2 kernel-source Affected
SUSE Linux Enterprise Real Time 15 SP3 kernel-rt Affected
SUSE Linux Enterprise Real Time 15 SP3 kernel-rt_debug Affected
SUSE Linux Enterprise Real Time 15 SP3 kernel-source Affected
SUSE Linux Enterprise Real Time 15 SP3 kernel-source-rt Affected
SUSE Linux Enterprise Real Time 15 SP3 kernel-syms-rt Affected
SUSE Linux Enterprise Real Time 15 SP4 kernel-rt Affected
SUSE Linux Enterprise Real Time 15 SP4 kernel-rt_debug Affected
SUSE Linux Enterprise Real Time 15 SP4 kernel-source Affected
SUSE Linux Enterprise Real Time 15 SP4 kernel-source-rt Affected
SUSE Linux Enterprise Real Time 15 SP4 kernel-syms-rt Affected
SUSE Linux Enterprise Server 11 SP4 kernel-source Affected
SUSE Linux Enterprise Server 11 SP4 LTSS kernel-default Affected
SUSE Linux Enterprise Server 11 SP4 LTSS kernel-source Affected
SUSE Linux Enterprise Server 11 SP4-LTSS kernel-source Affected
SUSE Linux Enterprise Server 12 SP3 kernel-source Affected
SUSE Linux Enterprise Server 12 SP3-BCL kernel-source Affected
SUSE Linux Enterprise Server 12 SP3-ESPOS kernel-source Affected
SUSE Linux Enterprise Server 12 SP3-LTSS kernel-source Affected
SUSE Linux Enterprise Server 12 SP4 kernel-source Affected
SUSE Linux Enterprise Server 12 SP4-ESPOS kernel-source Affected
SUSE Linux Enterprise Server 12 SP4-LTSS kernel-default Affected
SUSE Linux Enterprise Server 12 SP4-LTSS kernel-source Affected
SUSE Linux Enterprise Server 15 kernel-source Affected
SUSE Linux Enterprise Server 15 SP1 kernel-source Affected
SUSE Linux Enterprise Server 15 SP1-BCL kernel-source Affected
SUSE Linux Enterprise Server 15 SP1-LTSS kernel-default Affected
SUSE Linux Enterprise Server 15 SP1-LTSS kernel-source Affected
SUSE Linux Enterprise Server 15 SP2-BCL kernel-source Affected
SUSE Linux Enterprise Server 15 SP3-BCL kernel-source Affected
SUSE Linux Enterprise Server 15-LTSS kernel-default Affected
SUSE Linux Enterprise Server 15-LTSS kernel-source Affected
SUSE Linux Enterprise Server for SAP Applications 12 SP3 kernel-source Affected
SUSE Linux Enterprise Server for SAP Applications 12 SP4 kernel-default Affected
SUSE Linux Enterprise Server for SAP Applications 12 SP4 kernel-source Affected
SUSE Linux Enterprise Server for SAP Applications 15 kernel-source Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP1 kernel-source Affected
SUSE Manager Proxy 4.0 kernel-source Affected
SUSE Manager Proxy 4.1 kernel-source Affected
SUSE Manager Proxy 4.2 kernel-source Affected
SUSE Manager Retail Branch Server 4.0 kernel-source Affected
SUSE Manager Retail Branch Server 4.1 kernel-source Affected
SUSE Manager Retail Branch Server 4.2 kernel-source Affected
SUSE Manager Server 4.0 kernel-source Affected
SUSE Manager Server 4.1 kernel-source Affected
SUSE Manager Server 4.2 kernel-source Affected
SUSE OpenStack Cloud 8 kernel-source Affected
SUSE OpenStack Cloud 9 kernel-default Affected
SUSE OpenStack Cloud 9 kernel-source Affected
SUSE OpenStack Cloud Crowbar 8 kernel-source Affected
SUSE OpenStack Cloud Crowbar 9 kernel-default Affected
SUSE OpenStack Cloud Crowbar 9 kernel-source Affected
SUSE Real Time Module 15 SP3 kernel-rt Affected
SUSE Real Time Module 15 SP3 kernel-rt_debug Affected
SUSE Real Time Module 15 SP3 kernel-source-rt Affected
SUSE Real Time Module 15 SP3 kernel-syms-rt Affected
SUSE Real Time Module 15 SP4 kernel-rt Affected
SUSE Real Time Module 15 SP4 kernel-rt_debug Affected
SUSE Real Time Module 15 SP4 kernel-source-rt Affected
SUSE Real Time Module 15 SP4 kernel-syms-rt Affected
openSUSE Leap Micro 5.3 kernel-rt Released
Container Status
rancher/elemental-teal-rt/5.3
rancher/elemental-teal-rt/5.4
suse/sle-micro/rt-5.5
kernel-rtIn progress


SUSE Timeline for this CVE

CVE page created: Thu Apr 25 02:00:13 2024
CVE page last modified: Tue Jun 18 11:48:17 2024