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CVE-2026-98157— EDAC/device_sysfs: Use kstrtouint() for poll_msec to prevent truncation

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，已修复以下漏洞： EDAC/device_sysfs：使用 kstrtouint() 处理 poll_msec，以防止值被截断 poll_msec sysfs 存储文件原本使用 simple_strtoul() 函数，该函数接受 unsigned long 类型的输入，但目标字段 poll_msec 实际上是 unsigned int 类型。在 64 位系统上，当输入值大于 UINT_MAX 时，会被静默截断。 通过将 simple_strtoul() 替换为 kstrtouint() 来修

AI Predicted 5.5 Difficulty: Easy EPSS 0.17% · P5

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux e27e3dac651771fe3250f6305dee277bce29fc5d< a60794ee3f453516ab3ed212ba0295ecf890bc8c affected
e27e3dac651771fe3250f6305dee277bce29fc5d< f856511058c8cb470d6c6c7ce908870adcdc7dc6 affected
e27e3dac651771fe3250f6305dee277bce29fc5d< 656e2fe98ac452db4e5b8147d1f33b8c35b4ec4b affected
e27e3dac651771fe3250f6305dee277bce29fc5d< 541fc6f733b32463cf23277637bb07e2aaa00b53 affected
e27e3dac651771fe3250f6305dee277bce29fc5d< ea01c061d839b520f385f112908de1c6e3391327 affected
e27e3dac651771fe3250f6305dee277bce29fc5d< 528052af901d6e6bbfa0e52362a70a58a5dd1e43 affected
e27e3dac651771fe3250f6305dee277bce29fc5d< 0e022ee4f8e0dc843ba4c80bb75408a7704279af affected
e27e3dac651771fe3250f6305dee277bce29fc5d< 66cc9dec919dd63d8e4b3d386f7aed3ae684e645 affected
… +10 more rows
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I. Basic Information for CVE-2026-98157

Vulnerability Information
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Vulnerability Title
EDAC/device_sysfs: Use kstrtouint() for poll_msec to prevent truncation
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: EDAC/device_sysfs: Use kstrtouint() for poll_msec to prevent truncation The poll_msec sysfs store file uses simple_strtoul() which accepts an unsigned long, but the target field (poll_msec) is unsigned int. On 64-bit systems, a value > UINT_MAX is silently truncated when stored. Fix the mismatch by using kstrtouint() instead. This rejects values larger than UINT_MAX at parse time, making truncation impossible. Also add a check for value < 1 to reject the 0-delay case, which would cause the poll work to spin without delay and consume 100% CPU.
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 e27e3dac651771fe3250f6305dee277bce29fc5d ~ a60794ee3f453516ab3ed212ba0295ecf890bc8c -
Linux Linux 2.6.23 -

II. Public POCs for CVE-2026-98157

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III. Intelligence Information for CVE-2026-98157

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Patches & Fixes for CVE-2026-98157 (8)

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-2026-98122 7.8 HIGH vxlan: mdb: Fix use-after-free in vxlan_mdb_remote_src_del()
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-2026-98157

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