CVE-2026-90166

smb/server: fix null-ptr-deref in ksmbd_ipc_tree_connect_request()

N/A
Published: September 17, 2026 at 04:06 PM UTC
Updated: October 21, 2026 at 01:20 PM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
N/A
Exploit prediction
EPSS 0.2%

Description

In the Linux kernel, the following vulnerability has been resolved: smb/server: fix null-ptr-deref in ksmbd_ipc_tree_connect_request() See the procedure below: ksmbd_tree_conn_connect ksmbd_share_config_get share->name = kstrdup() // fail if (!test_share_config_flag(share, KSMBD_SHARE_FLAG_PIPE)) // false // do not check `share->name` ksmbd_ipc_tree_connect_request strlen(share->name) // null-ptr-deref

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

5.15e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9
Vendor states this is fixed in 4eb74a34ea401abfbbd5991076715dae3de938df (fixed)
Vendor states this is fixed in 7065d3648b1a48d2c49da3d6364dd3c4d503b10c (fixed)
Vendor states this is fixed in 8461f27902727ad434375caf13a0100aafc0340f (fixed)
Vendor states this is fixed in d2ccf905f47d2344270749f4dfa905afcd3edeb0 (fixed)
Vendor states this is fixed in 5.15 (unaffected)
Vendor states this is fixed in 6.12.110 (unaffected)
Vendor states this is fixed in 6.18.52 (unaffected)
Vendor states this is fixed in 6.6.160 (unaffected)
Vendor states this is fixed in 7.2.6 (unaffected)
Vendor states this is fixed in 7.3 (unaffected)
Vendor states this is fixed in 7.3-rc1 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

Quick Info

StatusRECEIVED

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