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CVE-2026-80531— xfs: avoid UAF on sc->tempip in xrep_tempfile_create

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，以下漏洞已得到修复： XFS：在 中避免对 的释放后使用（UAF）问题 LLM（大型语言模型）注意到，如果在设置 之后临时文件创建代码失败，可能会出现对 的释放后使用（Use-After-Free, UAF）问题。现已修复该问题。

CVSS 7.8 · High EPSS 0.13% · P3

Possible ATT&CK Techniques 1 AI

T1595 · Active Scanning

Affected Version Matrix 10

VendorProduct Version RangeStatus
Linux Linux 84c14ee39dd388d73054181c70b3f42af7ddc238< 08a20776ce33a2a52d856911e447c59424f0465a affected
84c14ee39dd388d73054181c70b3f42af7ddc238< cd1f876d1bc2e94f271e07c606cacd85b109108a affected
84c14ee39dd388d73054181c70b3f42af7ddc238< 96246a3200d32a43766152e56bc7ae2d93604d74 affected
84c14ee39dd388d73054181c70b3f42af7ddc238< 0c88e10d12de9ca7cbed1467bb1b52310101bff8 affected
6.10 affected
< 6.10 unaffected
6.12.105≤ 6.12.* unaffected
6.18.46≤ 6.18.* unaffected
… +2 more rows
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I. Basic Information for CVE-2026-80531

Vulnerability Information
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Vulnerability Title
xfs: avoid UAF on sc->tempip in xrep_tempfile_create
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: xfs: avoid UAF on sc->tempip in xrep_tempfile_create LOLLM noticed a potential UAF if the tempfile creation code fails after it set sc->tempip. Fix that.
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 84c14ee39dd388d73054181c70b3f42af7ddc238 ~ 08a20776ce33a2a52d856911e447c59424f0465a -
Linux Linux 6.10 -

II. Public POCs for CVE-2026-80531

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III. Intelligence Information for CVE-2026-80531

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Patches & Fixes for CVE-2026-80531 (4)

Same Patch Batch · Linux · 2026-08-26 · 92 CVEs total

CVE-2026-80561 9.8 CRITICAL libceph: fix multiple unsafe decodes in decode_locker()
CVE-2026-80587 9.8 CRITICAL mptcp: avoid combining some incoming suboptions
CVE-2026-74737 9.8 CRITICAL net: ethernet: ti: am65-cpsw-nuss: Fix port_id extraction from SRC TAG
CVE-2026-80589 9.8 CRITICAL block: stop the timeout timer when releasing a never added disk
CVE-2026-74743 9.8 CRITICAL macvlan: inherit needed_headroom and needed_tailroom from lowerdev
CVE-2026-74744 9.8 CRITICAL ipvlan: inherit needed_headroom and needed_tailroom from phy_dev
CVE-2026-80557 9.8 CRITICAL libceph: fix OOB read in decode_watchers() via missing bounds check
CVE-2026-80558 9.8 CRITICAL libceph: Avoid using invalid osd indices from primary_temp
CVE-2026-74752 9.8 CRITICAL sctp: validate cookie AUTH state before use
CVE-2026-80586 9.8 CRITICAL mptcp: options: reset DSS fields in case of unexpected size
CVE-2026-80519 9.8 CRITICAL ovpn: finish crypto callback cleanup before peer release
CVE-2026-80528 9.8 CRITICAL ceph: avoid fs reclaim while using current->journal_info
CVE-2026-74746 9.8 CRITICAL netfilter: flowtable: publish GC-visible tuple last
CVE-2026-80585 9.4 CRITICAL mptcp: fastopen: only mark MPTFO subflows with SYN data
CVE-2026-74751 9.4 CRITICAL riscv: lib: Fix ZBB strnlen reading past count boundary
CVE-2026-80551 9.3 CRITICAL s390/vfio_ccw: Ensure first IDAW remains constant
CVE-2026-80554 9.3 CRITICAL s390/vfio_ccw: Limit the number of channel program segments
CVE-2026-80553 8.8 HIGH s390/vfio_ccw: Cancel existing workqueues
CVE-2026-80552 8.8 HIGH s390/vfio_ccw: Ensure index for read/write regions are within range
CVE-2026-80548 8.8 HIGH s390/vfio_ccw: Selectively expand io_mutex

Showing top 20 of 92 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

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