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CVE-2026-98121— watchdog: msc313e: Fix NULL pointer dereference in PM callbacks

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 Linux 内核中，已解决以下漏洞： watchdog: msc313e：修复 PM 回调中的空指针解引用问题 函数未设置平台设备的驱动数据（driver data）。 因此，在 和 中调用 时会返回 NULL，随后导致空指针解引用。 修复方法：在 中正确设置平台设备的驱动数据。

AI Predicted 5.5 Difficulty: Trivial EPSS 0.17% · P6

Possible ATT&CK Techniques 1 AI

T1211 · Exploitation for Stealth

Affected Version Matrix 16

VendorProduct Version RangeStatus
Linux Linux e9800b7994642a794afd4894f072541c14277ce8< 960251cc4a413d8f1eef2a2c6aca41073b57ce16 affected
e9800b7994642a794afd4894f072541c14277ce8< afc3ea51e479289a23c642cc8bade67b94225ed9 affected
e9800b7994642a794afd4894f072541c14277ce8< a135415be56839e555e0bcdd5ffb8d2f5f947bd7 affected
e9800b7994642a794afd4894f072541c14277ce8< b02f902fe4b59d65f74a25c4523a75453bd3f808 affected
e9800b7994642a794afd4894f072541c14277ce8< 744b25040d8206f7925b8ba0be5edf93fa4bf81e affected
e9800b7994642a794afd4894f072541c14277ce8< 6495dc16e635356fd2b7535dcbf9b6779de4e753 affected
e9800b7994642a794afd4894f072541c14277ce8< e3eceb76515910746e6268c4e4ac1c07516ebd7b affected
5.14 affected
… +8 more rows
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I. Basic Information for CVE-2026-98121

Vulnerability Information
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Vulnerability Title
watchdog: msc313e: Fix NULL pointer dereference in PM callbacks
Source: CVE Program / CVE List V5
Vulnerability Description
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().
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux e9800b7994642a794afd4894f072541c14277ce8 ~ 960251cc4a413d8f1eef2a2c6aca41073b57ce16 -
Linux Linux 5.14 -

II. Public POCs for CVE-2026-98121

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III. Intelligence Information for CVE-2026-98121

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Patches & Fixes for CVE-2026-98121 (7)

Same Patch Batch · Linux · 2026-09-25 · 372 CVEs total

CVE-2026-100075 9.8 CRITICAL RDMA/srpt: Fix srpt_alloc_rw_ctxs() unwind counters
CVE-2026-97555 8.8 HIGH smb: client: fix heap overflow in DACL owner/group rewrite
CVE-2026-97957 8.8 HIGH net: hinic: fix mailbox segment buffer overflow
CVE-2026-97527 8.8 HIGH scsi: qla2xxx: Serialize NVMe unsol ctx list with a per-fcport lock
CVE-2026-97528 8.8 HIGH scsi: qla2xxx: Unlink NVMe unsol ctx before freeing on LS reject error
CVE-2026-98115 8.8 HIGH ksmbd: safely drain sessions during logoff
CVE-2026-97525 8.2 HIGH x86/mm/pat: Allocate split page tables as kernel page tables
CVE-2026-98069 8.1 HIGH net/rds: acquire the fastpath locks in rds_conn_shutdown()
CVE-2026-97573 8.1 HIGH bnxt_en: Handle buffer allocation failure in bnxt_rx_ring_reset()
CVE-2026-97570 8.1 HIGH bnxt_en: Bound SW TPA IDs to prevent crashes
CVE-2026-98130 8.1 HIGH sctp: fix a TOCTOU race in SCTP_CMD_TIMER_START
CVE-2026-98070 8.1 HIGH net/rds: acquire RDS_IN_XMIT in rds_tcp_reset_callbacks()
CVE-2026-98002 7.8 HIGH iommu/amd: Fix ineffective error check in nested domain allocation
CVE-2026-97575 7.8 HIGH media: v4l2-ctrls: validate AV1 tile counts
CVE-2026-97576 7.8 HIGH media: v4l2-ctrls: validate HEVC tile counts
CVE-2026-97941 7.8 HIGH mm/slab: take n->list_lock in __slab_try_return_freelist() to avoid race
CVE-2026-98112 7.8 HIGH ksmbd: fix listener task lifetime on netdev events
CVE-2026-98116 7.8 HIGH ALSA: pcm: Serialize PCM mmap with buffer reallocation to fix page UAF
CVE-2026-97580 7.8 HIGH media: rkvdec: bound HEVC tile loops and PPS id to the array capacity
CVE-2026-97940 7.8 HIGH ipv6: fix fib6 walker UAF on seq stop

Showing top 20 of 372 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-98121

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