watchdog: msc313e: Fix NULL pointer dereference in PM callbacks
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-476.
Summary
In the Linux kernel, the following vulnerability has been resolved: watchdog: msc313e: Fix NULL pointer dereference in PM callbacks msc313e_wdt_probe() doesn't set the driver data for the platform device. As a result, dev_get_drvdata() in msc313e_wdt_suspend() and msc313e_wdt_resume() will return NULL, leading to a NULL pointer dereference afterward. Set the platform device driver data in msc313e_wdt_probe().
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Linux | Linux | 5.14 and later | 5.15.222, 6.1.189, 6.6.158, 6.12.111, 6.18.53, 7.2.7, 7.3 | Patch available | CNA |
- Linux VendorLinux Affected 5.14 and later Fixed in 5.15.222, 6.1.189, 6.6.158, 6.12.111, 6.18.53, 7.2.7, 7.3 Patch available CNA
CPE configurations NVD · 3
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 5.14 to before 5.15.222; 5.16 to before 6.1.189; 6.2 to before 6.6.158; 6.7 to before 6.12.111; 6.13 to before 6.18.53; 6.19 to before 7.2.7 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:7.3:rc1:*:*:*:*:*:* | 7.3 rc1 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:7.3:rc2:*:*:*:*:*:* | 7.3 rc2 | Vulnerable | Linux |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 5.14 to before 5.15.222; 5.16 to before 6.1.189; 6.2 to before 6.6.158; 6.7 to before 6.12.111; 6.13 to before 6.18.53; 6.19 to before 7.2.7 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:7.3:rc1:*:*:*:*:*:* Versions 7.3 rc1 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:7.3:rc2:*:*:*:*:*:* Versions 7.3 rc2 Vulnerable ·Linux
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.15.222, 6.1.189, 6.6.158, 6.12.111, 6.18.53, 7.2.7, 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
- 2026-10-02 Threatist record created from CVE-2026-98121
- 2026-10-03 Alias added: GHSA-mh89-4wj5-pm5q
- 2026-10-03 Fix available: Linux/[email protected], Linux/[email protected], Linux/[email protected] +3 · CNA
- 2026-10-03 3 new references · CNA
- 2026-10-19 Fix available: Linux/[email protected] · CNA
- 2026-10-23 CVSS score added · NVD
- 2026-10-23 Weakness changed · NVD
- 2026-11-06 Affected versions changed · Red Hat
References
Patch 7
- https://git.kernel.org/stable/c/960251cc4a413d8f1eef2a2c6aca41073b57ce16
- https://git.kernel.org/stable/c/afc3ea51e479289a23c642cc8bade67b94225ed9
- https://git.kernel.org/stable/c/a135415be56839e555e0bcdd5ffb8d2f5f947bd7
- https://git.kernel.org/stable/c/b02f902fe4b59d65f74a25c4523a75453bd3f808
- https://git.kernel.org/stable/c/744b25040d8206f7925b8ba0be5edf93fa4bf81e
- https://git.kernel.org/stable/c/6495dc16e635356fd2b7535dcbf9b6779de4e753
- https://git.kernel.org/stable/c/e3eceb76515910746e6268c4e4ac1c07516ebd7b
More Linux Kernel vulnerabilities
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- 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-2026-98121 · CVE Program
- CVE-2026-98121 · NVD
- FIRST EPSS
- GHSA-mh89-4wj5-pm5q · GitHub Advisory Database · CC BY 4.0
- CVE-2026-98121 · Red Hat security data · CC BY 4.0
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