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CVE-2026-45974— btrfs: fix invalid leaf access in btrfs_quota_enable() if ref key not found

AI Predicted 5.5 Difficulty: Hard EPSS 0.03% · P10

Affected Version Matrix 20

VendorProductVersion RangeStatus
LinuxLinux5223cc60b40ae525ae6c94e98824129f1a5b4ae5< 023545e272f369d487e6a986c1e321c6e04be1daaffected
5223cc60b40ae525ae6c94e98824129f1a5b4ae5< fd4913a53e3b54ad7e161847291439fe445d6356affected
5223cc60b40ae525ae6c94e98824129f1a5b4ae5< b5b8ade9da452086e78f5d519b90d3769e354853affected
5223cc60b40ae525ae6c94e98824129f1a5b4ae5< 1ee1d006c9fe4d6be5527ab1c84216b80cccbe40affected
5223cc60b40ae525ae6c94e98824129f1a5b4ae5< 0761447f6f51e1c7997960d8e6559337deed6729affected
5223cc60b40ae525ae6c94e98824129f1a5b4ae5< d7cf2314dd5e8661c05d076cd627eea9a7f76616affected
5223cc60b40ae525ae6c94e98824129f1a5b4ae5< b2bd557b75b760e4b9d209112bda19314bd64558affected
5223cc60b40ae525ae6c94e98824129f1a5b4ae5< ecb7c2484cfc83a93658907580035a8adf1e0a92affected
… +12 more rows
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I. Basic Information for CVE-2026-45974

Vulnerability Information
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Vulnerability Title
btrfs: fix invalid leaf access in btrfs_quota_enable() if ref key not found
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: btrfs: fix invalid leaf access in btrfs_quota_enable() if ref key not found If btrfs_search_slot_for_read() returns 1, it means we did not find any key greater than or equals to the key we asked for, meaning we have reached the end of the tree and therefore the path is not valid. If this happens we need to break out of the loop and stop, instead of continuing and accessing an invalid path.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于在btrfs_quota_enable中未找到引用键时访问无效叶子节点，可能导致无效路径访问。
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

VendorProductAffected VersionsCPESubscribe
LinuxLinux 5223cc60b40ae525ae6c94e98824129f1a5b4ae5 ~ 023545e272f369d487e6a986c1e321c6e04be1da -
LinuxLinux 5.10 -

II. Public POCs for CVE-2026-45974

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III. Intelligence Information for CVE-2026-45974

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Patches & Fixes for CVE-2026-45974 (8)

Same Patch Batch · Linux · 2026-05-27 · 276 CVEs total

CVE-2026-460399.8 CRITICALrxgk: Fix potential integer overflow in length check
CVE-2026-458989.8 CRITICALRDMA/iwcm: Fix workqueue list corruption by removing work_list
CVE-2026-459889.8 CRITICALrxrpc: Fix re-decryption of RESPONSE packets
CVE-2026-459729.8 CRITICALsmb: client: fix potential UAF and double free in smb2_open_file()
CVE-2026-460439.1 CRITICALRDMA/rxe: Validate pad and ICRC before payload_size() in rxe_rcv
CVE-2026-460568.8 HIGHBluetooth: hci_event: fix potential UAF in SSP passkey handlers
CVE-2026-459458.8 HIGHiommu/vt-d: Fix race condition during PASID entry replacement
CVE-2026-458438.2 HIGHslip: bound decode() reads against the compressed packet length
CVE-2026-460378.2 HIGHipv4: icmp: validate reply type before using icmp_pointers
CVE-2026-460108.1 HIGHrxrpc: Fix error handling in rxgk_extract_token()
CVE-2026-460998.1 HIGHnet: ipv6: fix NOREF dst use in seg6 and rpl lwtunnels
CVE-2026-460767.9 HIGHKVM: nSVM: Raise #UD if unhandled VMMCALL isn't intercepted by L1
CVE-2026-458947.8 HIGHiommu/vt-d: Clear Present bit before tearing down PASID entry
CVE-2026-459597.8 HIGHcrypto: ccp - Fix a crash due to incorrect cleanup usage of kfree
CVE-2026-460117.8 HIGHmedia: mtk-jpeg: fix use-after-free in release path due to uncancelled work
CVE-2026-460157.8 HIGHtcp: call sk_data_ready() after listener migration
CVE-2026-458527.8 HIGHRDMA/rxe: Fix double free in rxe_srq_from_init
CVE-2026-460587.8 HIGHmedia: amphion: Fix race between m2m job_abort and device_run
CVE-2026-458617.8 HIGHgfs2: Fix slab-use-after-free in qd_put
CVE-2026-460537.8 HIGHnet: rds: fix MR cleanup on copy error

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-2026-45974

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