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CVE-2026-80534— xfs: fix ilock leak on error in xfs_dq_get_next_id

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.

Linux kernel是美国Linux基金会开源的一个操作系统内核。 Linux kernel存在安全漏洞，该漏洞源于xfs_dq_get_next_id函数在调用xfs_iread_extents前获取配额inode的ILOCK，若调用失败则直接返回而未释放锁，导致ilock泄漏，可能使配额inode保持锁定并造成后续配额操作挂起。

AI Predicted 5.5 Difficulty: Moderate EPSS 0.18% · P7

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux bda250dbaf39f67f8910e183853e4e6a9e5ce899< e4c05ebd01e910bccd4f7e9517c7353982e27763 affected
bda250dbaf39f67f8910e183853e4e6a9e5ce899< 6401b99a285cd4cfb2949ba44675541b91ad7e4f affected
bda250dbaf39f67f8910e183853e4e6a9e5ce899< 0865e4fca02e418fd2423fae9a887dee87b778a1 affected
bda250dbaf39f67f8910e183853e4e6a9e5ce899< ed8bfb43de71213cfdbbe833b2c2817250e18b1a affected
bda250dbaf39f67f8910e183853e4e6a9e5ce899< e270d539b8a2e0cb8f617fee47a7b083c0088361 affected
bda250dbaf39f67f8910e183853e4e6a9e5ce899< 514a5d42d4188fc5f1499a8d654c717ebf981193 affected
bda250dbaf39f67f8910e183853e4e6a9e5ce899< 08bed2b67d2ee79d3e138c344d8dcfa4c9b26a38 affected
bda250dbaf39f67f8910e183853e4e6a9e5ce899< 63320a0f70f66f311f4bccff3af0719c2119f46c affected
… +10 more rows
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I. Basic Information for CVE-2026-80534

Vulnerability Information
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Vulnerability Title
xfs: fix ilock leak on error in xfs_dq_get_next_id
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: xfs: fix ilock leak on error in xfs_dq_get_next_id xfs_dq_get_next_id() takes the quota inode ILOCK before calling xfs_iread_extents(). If xfs_iread_extents() fails, the function returns immediately without releasing the lock, leaking the quota inode ILOCK. This can leave the quota inode locked and cause subsequent quota operations to hang. Fix this by jumping to a common unlock path on error instead of returning directly.
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
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会开源的一个操作系统内核。 Linux kernel存在安全漏洞，该漏洞源于xfs_dq_get_next_id函数在调用xfs_iread_extents前获取配额inode的ILOCK，若调用失败则直接返回而未释放锁，导致ilock泄漏，可能使配额inode保持锁定并造成后续配额操作挂起。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux bda250dbaf39f67f8910e183853e4e6a9e5ce899 ~ e4c05ebd01e910bccd4f7e9517c7353982e27763 -
Linux Linux 4.13 -

II. Public POCs for CVE-2026-80534

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III. Intelligence Information for CVE-2026-80534

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Patches & Fixes for CVE-2026-80534 (6)

Vendor Pages for CVE-2026-80534 (1)

Other References for CVE-2026-80534 (1)

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

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