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CVE-2026-43063— xfs: don't irele after failing to iget in xfs_attri_recover_work

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xfs_attri_recover_work函数在iget失败后对无效指针执行irele操作，可能导致空指针解引用。

CVSS 7.8 · High EPSS 0.19% · P8

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation

Affected Version Matrix 10

VendorProduct Version RangeStatus
Linux Linux ae673f534a30976ce5e709c4535a59c12b786ef3< b5c5a50c2f513d4a13a6763564a07b470e69cc5a affected
ae673f534a30976ce5e709c4535a59c12b786ef3< a1a5df1038f0b3c560d204270373621a4e622808 affected
ae673f534a30976ce5e709c4535a59c12b786ef3< 40082d08b638485cbaa543dc8087a3d1844d6f08 affected
ae673f534a30976ce5e709c4535a59c12b786ef3< 70685c291ef82269180758130394ecdc4496b52c affected
6.10 affected
< 6.10 unaffected
6.12.80≤ 6.12.* unaffected
6.18.21≤ 6.18.* unaffected
… +2 more rows
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I. Basic Information for CVE-2026-43063

Vulnerability Information
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Vulnerability Title
xfs: don't irele after failing to iget in xfs_attri_recover_work
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: xfs: don't irele after failing to iget in xfs_attri_recover_work xlog_recovery_iget* never set @ip to a valid pointer if they return an error, so this irele will walk off a dangling pointer. Fix that.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
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xfs_attri_recover_work函数在iget失败后对无效指针执行irele操作，可能导致空指针解引用。
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 ae673f534a30976ce5e709c4535a59c12b786ef3 ~ b5c5a50c2f513d4a13a6763564a07b470e69cc5a -
Linux Linux 6.10 -

II. Public POCs for CVE-2026-43063

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III. Intelligence Information for CVE-2026-43063

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Patches & Fixes for CVE-2026-43063 (4)

Same Patch Batch · Linux · 2026-05-05 · 15 CVEs total

CVE-2026-43067 9.8 CRITICAL ext4: handle wraparound when searching for blocks for indirect mapped blocks
CVE-2026-43071 9.1 CRITICAL dcache: Limit the minimal number of bucket to two
CVE-2026-43070 7.8 HIGH bpf: Reset register ID for BPF_END value tracking
CVE-2026-43060 7.8 HIGH netfilter: nft_ct: drop pending enqueued packets on removal
CVE-2026-43062 7.1 HIGH Bluetooth: L2CAP: Fix type confusion in l2cap_ecred_reconf_rsp()
CVE-2026-43073 x86-64: rename misleadingly named '__copy_user_nocache()' function
CVE-2026-43072 drm/vc4: platform_get_irq_byname() returns an int
CVE-2026-43069 Bluetooth: hci_ll: Fix firmware leak on error path
CVE-2026-43068 ext4: avoid allocate block from corrupted group in ext4_mb_find_by_goal()
CVE-2026-43066 ext4: fix iloc.bh leak in ext4_fc_replay_inode() error paths
CVE-2026-43065 ext4: always drain queued discard work in ext4_mb_release()
CVE-2026-43064 dmaengine: idxd: Fix not releasing workqueue on .release()
CVE-2026-43061 serial: 8250: Fix TX deadlock when using DMA
CVE-2026-43059 Bluetooth: MGMT: Fix list corruption and UAF in command complete handlers

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-43063

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