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TI-2026-64559 Aliases CVE-2026-98162GHSA-x6qh-h8p9-5c4q

smb/server: fix tree connection leak in smb2_tree_connect()

Priority LOW 24CWE-401Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-401.

Summary

In the Linux kernel, the following vulnerability has been resolved: smb/server: fix tree connection leak in smb2_tree_connect() See the procedure below: smb2_tree_connect ksmbd_tree_conn_connect xa_store(&sess->tree_conns, tree_conn->id, tree_conn) ksmbd_counter_inc(KSMBD_COUNTER_TREE_CONNS) ksmbd_share_tree_conn_inc(sc) ksmbd_iov_pin_rsp // fail status.ret = KSMBD_TREE_CONN_STATUS_NOMEM // do not disconnect tree_conn Disconnect the new tree connection if ksmbd_iov_pin_rsp() fails.

Why it matters now

EPSS 0.00114 1st percentileScored 2026-11-07
Fix Fixed Linux (Linux): 5.16, 6.2, 6.6.160 +3

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
LinuxLinux5.15.145 to before 5.16; 6.1.71 to before 6.25.16, 6.2Patch availableCNA
LinuxLinux6.6 and later6.6.160, 6.18.57, 7.2.6, 7.3Patch availableCNA
  • Linux VendorLinux Affected 5.15.145 to before 5.16; 6.1.71 to before 6.2 Fixed in 5.16, 6.2 Patch available CNA
  • Linux VendorLinux Affected 6.6 and later Fixed in 6.6.160, 6.18.57, 7.2.6, 7.3 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*5.15.145 to before 5.16; 6.1.71 to before 6.2; 6.6 to before 7.2.6VulnerableLinux
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 5.15.145 to before 5.16; 6.1.71 to before 6.2; 6.6 to before 7.2.6 Vulnerable ·Linux

Remediation

  • Fix · CNA Linux (Linux) Fixed in 5.16, 6.2
  • Fix · CNA Linux (Linux) Fixed in 6.6.160, 6.18.57, 7.2.6, 7.3

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

Not affected: 7 products
  • Red Hat Enterprise Linux 10
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8
  • Red Hat Enterprise Linux 9
  • Red Hat OpenShift Container Platform 4
  • Red Hat OpenShift Container Platform 5

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-98162
  2. 2026-10-03 Alias added: GHSA-x6qh-h8p9-5c4q
  3. 2026-10-16 Fix available: Linux/[email protected], Linux/Linux@fea9c705bbc618ba6426424c9f8330555820c9ec · CNA
  4. 2026-10-16 1 new reference · CNA
  5. 2026-10-19 Fix available: Linux/[email protected] · CNA
  6. 2026-10-21 Fix available: Linux/[email protected], Linux/Linux@fa0c45986fc60b3edfb35879f2fb0eacc0e49e98 · CNA
  7. 2026-10-21 1 new reference · CNA
  8. 2026-11-06 Affected versions changed · Red Hat

References

Patch 2

Other 2

  • TI-2025-26358 tls: fix handling of zero-length records on the rx_list KEVCVSS 3.1CRITICAL 9.8
  • TI-2026-38352 netfilter: bridge: make ebt_snat ARP rewrite writable KEVCVSS 3.1HIGH 8.8
  • TI-2013-05264 The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the… KEVCVSS 3.1HIGH 8.8
  • TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
  • TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
  • TI-2021-05514 Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE KEVCVSS 3.1HIGH 8.3
See all 15278 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences