Medium 5.5Published Sep 25, 2026

CVE-2026-98162smb/server: fix tree connection leak in smb2_tree_connect()

Updated under an hour ago (2026-10-19 07:00 UTC)

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No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

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.

CVSS: 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Modified
Record last updated: Oct 15, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from e2b76ab8b5c9327ab2dae6da05d0752eb2f4771d before fea9c705bbc618ba6426424c9f8330555820c9ec; from e2b76ab8b5c9327ab2dae6da05d0752eb2f4771d before a6c88e5e3a75f1e4a98ad4bc4037465ccd7925bc; from e2b76ab8b5c9327ab2dae6da05d0752eb2f4771d before 39f2032096715daae5f6fd0f587ca7a474b019df; f2283680a80571ca82d710bc6ecd8f8beac67d63; 9f297df20d93411c0b4ddad7f88ba04a7cd36e77; from 5.15.145 before 5.16; from 6.1.71 before 6.2	CNA record
linux linux_kernel linux:linux_kernel	from 5.15.145 before 5.16; from 6.1.71 before 6.2; from 6.6 before 7.2.6	NVD

References

https://git.kernel.org/stable/c/fea9c705bbc618ba6426424c9f8330555820c9ec
https://git.kernel.org/stable/c/a6c88e5e3a75f1e4a98ad4bc4037465ccd7925bcpatch
https://git.kernel.org/stable/c/39f2032096715daae5f6fd0f587ca7a474b019dfpatch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.