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CVE-2026-89997— dm: fix resume-vs-remove race

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： dm: 修复恢复与移除之间的竞态条件 如果用户同时发出 和 ioctl，可能会出现设备在 中被挂起后又意外恢复的情况。其结果是，表（table）被销毁时未调用 方法。 dm 目标（targets）预期只有在调用了 方法之后才能被移除。如果打破这一预期，可能导致各种目标出现异常行为。例如，在 目标中，reboot notifier 未被注销，从而导致 use-after-free（使用已释放内存）问题。 本修复方案通过拒绝在设备正在被销毁时执行恢复操作，从而解决了此缺陷。

CVSS 7.8 · High EPSS 0.17% · P6

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 20

VendorProduct Version RangeStatus
Linux Linux 3f77316de0ec0fd208467fbee8d9edc70e2c73b2< 9757367bcf1d5d2c50b94d005abca21f3eedd7c3 affected
3f77316de0ec0fd208467fbee8d9edc70e2c73b2< 1ede2bce2bd640605df83db1356fd727159bc9ed affected
3f77316de0ec0fd208467fbee8d9edc70e2c73b2< 3f04e6520d9a53adb1d1daf4dc5d31a60fc77d1f affected
3f77316de0ec0fd208467fbee8d9edc70e2c73b2< 94f3d399c1ddba763c1c5a6501f7375d533d789f affected
3f77316de0ec0fd208467fbee8d9edc70e2c73b2< 3b59530b14fde693e41d8e39bc326df6cbf07b76 affected
3f77316de0ec0fd208467fbee8d9edc70e2c73b2< 36177beff2a9df035991ad8d16ccf8d363ed93ee affected
3f77316de0ec0fd208467fbee8d9edc70e2c73b2< 94380ecd5ff9b2a2b9f6e8a0b5c465159ccfaf71 affected
3f77316de0ec0fd208467fbee8d9edc70e2c73b2< 44b43ec132f1cf3275ecc182d0c82f50c3c4c3d5 affected
… +12 more rows
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I. Basic Information for CVE-2026-89997

Vulnerability Information
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Vulnerability Title
dm: fix resume-vs-remove race
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: dm: fix resume-vs-remove race If the user issues the resume ioctl and the remove ioctl at the same time, it may be possible that the device is resumed after it is suspended in __dm_destroy. The result is that the table is destroyed without calling the postsuspend method. Dm targets expect that they may be removed only after the postsuspend method method was called. If we break this expectation, it can cause misbehavior in various targets. For example - in the dm-integrity target, the reboot notifier is not unregistered, leading to use-after-free. Fix this bug by refusing to resume if the device is being destroyed.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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 3f77316de0ec0fd208467fbee8d9edc70e2c73b2 ~ 9757367bcf1d5d2c50b94d005abca21f3eedd7c3 -
Linux Linux 2.6.36 -

II. Public POCs for CVE-2026-89997

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III. Intelligence Information for CVE-2026-89997

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Other References for CVE-2026-89997 (8)

Same Patch Batch · Linux · 2026-09-16 · 276 CVEs total

CVE-2026-90048 9.8 CRITICAL fs/ntfs3: fix slab-out-of-bounds write in ni_create_attr_list()
CVE-2026-90012 9.8 CRITICAL spi: Fix DMA mapping ownership on partial map failure
CVE-2026-89970 9.8 CRITICAL nvmet-auth: Synchronize timeout work during SQ teardown
CVE-2026-89857 9.8 CRITICAL scsi: qla2xxx: Hold qpair lock when sending NVMe LS reject
CVE-2026-89969 9.8 CRITICAL nvmet-tcp: fix out-of-bounds write when receiving an over-long PDU
CVE-2026-89847 9.8 CRITICAL scsi: qla2xxx: Avoid double completion in async IOCB timeout
CVE-2026-89972 9.8 CRITICAL nvme: add missing SRCU grace period in error path
CVE-2026-89990 9.8 CRITICAL ceph: lock mutex in ceph_mds_check_access()
CVE-2026-90036 9.8 CRITICAL NFSD: Prevent client use-after-free during blocked-lock reaping
CVE-2026-90038 9.8 CRITICAL NFSD: Prevent client use-after-free during export state revocation
CVE-2026-90037 9.8 CRITICAL NFSD: Prevent client use-after-free during close_lru reaping
CVE-2026-89788 9.8 CRITICAL ksmbd: fix tree connection use-after-free in smb2_tree_connect()
CVE-2026-89783 9.8 CRITICAL xfrm6: fix out-of-bounds write in xfrm6_input_addr() when secpath is full
CVE-2026-90042 9.8 CRITICAL ceph: properly decrypt filenames in vmalloc() buffers
CVE-2026-89778 9.8 CRITICAL isofs: fix out-of-bounds page array access on empty zisofs block
CVE-2026-89915 9.3 CRITICAL KVM: arm64: Remove VM-wide VNCR mapping counter
CVE-2026-90049 9.3 CRITICAL net: skbuff: don't skb_tx_error() the source skb in skb_zerocopy()
CVE-2026-89775 9.3 CRITICAL KVM: arm64: Handle negative S1 walk levels in VNCR TLB size evaluation
CVE-2026-89916 9.3 CRITICAL KVM: arm64: Make VNCR invalidation participate in MMU invalidation retry
CVE-2026-89930 9.3 CRITICAL KVM: nVMX: Service local TLB flushes on failed nested VM-Enter

Showing top 20 of 276 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-89997

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