smb: client: fix deadlock in smb2_find_smb_tcon()
Priority LOW 33CWE-667Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 1 without a fix
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-667 and the CVSS impact.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00528 44th percentileScored 2026-11-07
Fix Partial Linux (Linux): 5.15.162, 6.1.94, 6.6.34 +2Red Hat: 1 without a fix
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Linux | Linux | 5.14 and later | 5.15.162, 6.1.94, 6.6.34, 6.9.5, 6.10 | Patch available | CNA |
- Linux VendorLinux Affected 5.14 and later Fixed in 5.15.162, 6.1.94, 6.6.34, 6.9.5, 6.10 Patch available CNA
CPE configurations NVD · 3
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | before 5.10.221; 5.11 to before 5.15.162; 5.16 to before 6.1.94; 6.2 to before 6.6.34; 6.7 to before 6.9.5 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.10:rc1:*:*:*:*:*:* | 6.10 rc1 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.10:rc2:*:*:*:*:*:* | 6.10 rc2 | Vulnerable | Linux |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions before 5.10.221; 5.11 to before 5.15.162; 5.16 to before 6.1.94; 6.2 to before 6.6.34; 6.7 to before 6.9.5 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.10:rc1:*:*:*:*:*:* Versions 6.10 rc1 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.10:rc2:*:*:*:*:*:* Versions 6.10 rc2 Vulnerable ·Linux
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.15.162, 6.1.94, 6.6.34, 6.9.5, 6.10
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 9 | Affected | No fix yet: Fix deferred |
Not affected: 3 products
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
Timeline
- 2026-10-02 Threatist record created from CVE-2024-39468
- 2026-10-03 Alias added: GHSA-jf8v-99g3-rx6h
References
Patch 6
- https://git.kernel.org/stable/c/b055752675cd1d1db4ac9c2750db3dc3e89ea261
- https://git.kernel.org/stable/c/21f5dd36e655d25a7b45b61c1e537198b671f720
- https://git.kernel.org/stable/c/b09b556e48968317887a11243a5331a7bc00ece5
- https://git.kernel.org/stable/c/225de871ddf994f69a57f035709cad9c0ab8615a
- https://git.kernel.org/stable/c/8d0f5f1ccf675454a833a573c53830a49b7d1a47
- https://git.kernel.org/stable/c/02c418774f76a0a36a6195c9dbf8971eb4130a15
More Linux Kernel vulnerabilities
- 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
Sources
- CVE-2024-39468 · CVE Program
- CVE-2024-39468 · NVD
- FIRST EPSS
- GHSA-jf8v-99g3-rx6h · GitHub Advisory Database · CC BY 4.0
- CVE-2024-39468 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences