CVE-2024-39468

smb: client: fix deadlock in smb2_find_smb_tcon()

MEDIUM

5.5

CVSS Score

Published: June 25, 2024 at 02:28 PM UTC

Updated: October 15, 2026 at 01:18 AM UTC

7 products affected across 2 vendorsLinux KernelSIMATIC S7-1500 TM MFPRUGGEDCOM RST2428P Firmware

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Severity

MEDIUM5.5

Exploit prediction

EPSS 0.5%

SSVC

No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix deadlock in smb2_find_smb_tcon() Unlock cifs_tcp_ses_lock before calling cifs_put_smb_ses() to avoid such deadlock.

Affected

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

Linux Kernel · Linux

95%

v < 5.10.2215.11 ≤ v < 5.15.1625.16 ≤ v < 6.1.946.2 ≤ v < 6.6.346.7 ≤ v < 6.9.56.10 6.10 rc1 6.10 rc278ebec450ef4f0720c592638d92bad679d75d7cee695a9ad0305af6e8b0cbc24a54976ac2120cbb3

Vendor states this is fixed in 02c418774f76a0a36a6195c9dbf8971eb4130a15 (fixed)

Vendor states this is fixed in 21f5dd36e655d25a7b45b61c1e537198b671f720 (fixed)

Vendor states this is fixed in 225de871ddf994f69a57f035709cad9c0ab8615a (fixed)

Vendor states this is fixed in 8d0f5f1ccf675454a833a573c53830a49b7d1a47 (fixed)

Vendor states this is fixed in b055752675cd1d1db4ac9c2750db3dc3e89ea261 (fixed)

Vendor states this is fixed in b09b556e48968317887a11243a5331a7bc00ece5 (fixed)

Affected range stops below 5.10.221, so it looks safe — our inference, not a vendor statement

Vendor states this is fixed in 5.14 (unaffected)

Vendor states this is fixed in 5.15.162 (unaffected)

Vendor states this is fixed in 6.1.94 (unaffected)

Vendor states this is fixed in 6.10 (unaffected)

Vendor states this is fixed in 6.6.34 (unaffected)

Vendor states this is fixed in 6.9.5 (unaffected)

RUGGEDCOM RST2428P Firmware · Siemens

60%

v < V3.1

Affected range stops below V3.1, so it looks safe — our inference, not a vendor statement

SCALANCE XCH-300 · Siemens

60%

v < V3.1

Affected range stops below V3.1, so it looks safe — our inference, not a vendor statement

SCALANCE XCM-300 · Siemens

60%

v < V3.1

Affected range stops below V3.1, so it looks safe — our inference, not a vendor statement

SCALANCE XRH-300 · Siemens

60%

v < V3.1

Affected range stops below V3.1, so it looks safe — our inference, not a vendor statement

SCALANCE XRM-300 · Siemens

60%

v < V3.1

Affected range stops below V3.1, so it looks safe — our inference, not a vendor statement

SIMATIC S7-1500 TM MFP · Siemens

60%

All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references