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CVE-2026-98269— btrfs: abort transaction on failure to update inode for hole punching and reflinking

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： btrfs：在无法更新 inode 以处理打孔（hole punching）和重链接（reflink）时，应中止事务。 如果更新 inode 失败，当前代码会在不中止事务的情况下返回错误。然而，如果在此失败后仍提交该事务，可能导致持久性不一致，因为我们已经从某个范围删除了文件扩展项（file extent items），并且要么在该范围执行了打孔操作，要么插入新的文件扩展项（针对重链接情况）。 因此，请添加缺失的事务中止逻辑。

AI Predicted 4.7 Difficulty: Moderate EPSS 0.18% · P6

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 12

VendorProduct Version RangeStatus
Linux Linux 2aaa66558172b017f36bf38ae69372813dedee9d< 2605eb9ba3bbd4c9f455cfe6b85bd28a1da7067d affected
2aaa66558172b017f36bf38ae69372813dedee9d< 834a3b5c5f1ec0df48c1a6208f9989f4ffdaa0b6 affected
2aaa66558172b017f36bf38ae69372813dedee9d< 9588850bfa75c78ce73c2f6f72544d19d2e9beb6 affected
2aaa66558172b017f36bf38ae69372813dedee9d< 36c68dc909845c049e0286d229bc502947239452 affected
2aaa66558172b017f36bf38ae69372813dedee9d< 97fcd34aa9fd73cefe3120ac9a82ca9d7763922f affected
3.7 affected
< 3.7 unaffected
6.6.158≤ 6.6.* unaffected
… +4 more rows
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I. Basic Information for CVE-2026-98269

Vulnerability Information
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Vulnerability Title
btrfs: abort transaction on failure to update inode for hole punching and reflinking
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: btrfs: abort transaction on failure to update inode for hole punching and reflinking If we fail to update the inode we error out without aborting the transaction, which can result in a persistent inconsistency if after the failure the transaction is committed, as we have dropped file extent items from a range and either punched a hole or insert a new file extent item for that range (for reflinks). So add the missing transaction abort.
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 2aaa66558172b017f36bf38ae69372813dedee9d ~ 2605eb9ba3bbd4c9f455cfe6b85bd28a1da7067d -
Linux Linux 3.7 -

II. Public POCs for CVE-2026-98269

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III. Intelligence Information for CVE-2026-98269

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Patches & Fixes for CVE-2026-98269 (5)

Same Patch Batch · Linux · 2026-10-06 · 208 CVEs total

CVE-2026-98323 9.8 CRITICAL RDMA/siw: Bound fragmented header copies by the remaining length
CVE-2026-98365 9.8 CRITICAL RDMA/rxe: Fix integer overflow in mr_check_range() leading to OOB access
CVE-2026-98282 8.8 HIGH powerpc/iommu: Fix the overflow validation in iommu_tce_check_ioba
CVE-2026-98283 8.8 HIGH KVM: PPC: Book3S HV: fix use-after-free in kvmhv_emulate_tlbie_all_lpid()
CVE-2026-98339 8.8 HIGH wifi: cfg80211: don't filter by BSS type when removing stale entries
CVE-2026-98171 8.8 HIGH smb: client: fix next_buffer UAF and NextCommand bounds in compound PDUs
CVE-2026-98261 8.1 HIGH cifs: Fix server use-after-free in cifs_chan_skip_or_disable()
CVE-2026-98357 8.1 HIGH IB/isert: wait for deferred control PDU completions before releasing the connection
CVE-2026-98239 8.1 HIGH net: lan743x: fix RX checksum use-after-free
CVE-2026-98341 7.8 HIGH wifi: cfg80211: don't free driver-owned scan requests
CVE-2026-98324 7.8 HIGH dmaengine: pxa: fix double counting of the hw descriptors
CVE-2026-98320 7.8 HIGH netfilter: flowtable: hold reference on ct until flow is released
CVE-2026-98228 7.8 HIGH mips: select CONFIG_WEAK_REORDERING_BEYOND_LLSC from CONFIG_EYEQ
CVE-2026-98229 7.8 HIGH xfrm: save input state data before secpath resets
CVE-2026-98318 7.8 HIGH smb: client: validate absolute native symlink targets before NT fixups
CVE-2026-98315 7.8 HIGH ntfs: protect runlist updates with the runlist lock
CVE-2026-98260 7.8 HIGH exec: Cleanup POSIX timers right after de_thread()
CVE-2026-98256 7.8 HIGH signal: Prevent exec() race
CVE-2026-98258 7.8 HIGH posix-cpu-timers: Prevent freeing a timer which is queued on the expiry list
CVE-2026-98254 7.8 HIGH swiotlb: use the adjusted address for the highmem page lookup

Showing top 20 of 208 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-98269

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