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CVE-2026-80529— xfs: don't swallow dquot recovery verification errors

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：不要吞掉 dquot 恢复验证错误 使用 对恢复的 dquot 进行验证。当验证失败时，代码会设置 并跳转到 。然而， 无条件返回 0，导致损坏（corruption）错误被丢弃：调用者 认为操作成功，日志恢复过程会继续，仿佛 dquot 是有效的，最终可能导致损坏的配额（quota）缓冲区被写回磁盘。

AI Predicted 4.9 Difficulty: Moderate EPSS 0.17% · P7

Possible ATT&CK Techniques 1 AI

T1490 · Inhibit System Recovery

Affected Version Matrix 16

VendorProduct Version RangeStatus
Linux Linux 7880b1f0adef4d363f42d6bb42aab3211291351b< e506e127fcb4e2bad1045805f1740b395eea9618 affected
3581868f51a2edb027a898988b5b5a4ba379ee55< 5b756fbb60b5d26063f46a11a3c7daa7eb616d79 affected
9c235dfc3d3f901fe22acb20f2ab37ff39f2ce02< a233b3362a3c7bf23f5143b4ef4b17ec337fcb4d affected
9c235dfc3d3f901fe22acb20f2ab37ff39f2ce02< 38a4dbe588bd028a07a77dc5cee62ee3ce21e87d affected
9c235dfc3d3f901fe22acb20f2ab37ff39f2ce02< 36a31b12540c0a0a3b77a01fda86de646f2961fb affected
9c235dfc3d3f901fe22acb20f2ab37ff39f2ce02< e2b4a856085e9bd939bde2dee0d08b1d41babde9 affected
6.1.128< 6.1.184 affected
6.6.17< 6.6.153 affected
… +8 more rows
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I. Basic Information for CVE-2026-80529

Vulnerability Information
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Vulnerability Title
xfs: don't swallow dquot recovery verification errors
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: xfs: don't swallow dquot recovery verification errors xlog_recover_dquot_commit_pass2() validates the recovered dquot with xfs_dqblk_verify() and, on failure, sets error = -EFSCORRUPTED and jumps to out_release. But out_release unconditionally returns 0, so the corruption error is discarded: the caller xlog_recover_items_pass2() sees success, log recovery proceeds as if the dquot were valid, and the corrupt quota buffer can be written back to disk.
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 7880b1f0adef4d363f42d6bb42aab3211291351b ~ e506e127fcb4e2bad1045805f1740b395eea9618 -
Linux Linux 6.7 -

II. Public POCs for CVE-2026-80529

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III. Intelligence Information for CVE-2026-80529

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Patches & Fixes for CVE-2026-80529 (6)

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

CVE-2026-80557 9.8 CRITICAL libceph: fix OOB read in decode_watchers() via missing bounds check
CVE-2026-80589 9.8 CRITICAL block: stop the timeout timer when releasing a never added disk
CVE-2026-74737 9.8 CRITICAL net: ethernet: ti: am65-cpsw-nuss: Fix port_id extraction from SRC TAG
CVE-2026-80558 9.8 CRITICAL libceph: Avoid using invalid osd indices from primary_temp
CVE-2026-80587 9.8 CRITICAL mptcp: avoid combining some incoming suboptions
CVE-2026-80528 9.8 CRITICAL ceph: avoid fs reclaim while using current->journal_info
CVE-2026-80561 9.8 CRITICAL libceph: fix multiple unsafe decodes in decode_locker()
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-2026-80519 9.8 CRITICAL ovpn: finish crypto callback cleanup before peer release
CVE-2026-74746 9.8 CRITICAL netfilter: flowtable: publish GC-visible tuple last
CVE-2026-80586 9.8 CRITICAL mptcp: options: reset DSS fields in case of unexpected size
CVE-2026-74752 9.8 CRITICAL sctp: validate cookie AUTH state before use
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-2026-80552 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
CVE-2026-80547 8.8 HIGH s390/vfio_ccw: Implement a crw lock

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

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-80529

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