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CVE-2026-46051— md/raid5: fix soft lockup in retry_aligned_read()

AI Predicted 5.9 Difficulty: Moderate EPSS 0.03% · P10

Possible ATT&CK Techniques 1AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 18

VendorProductVersion RangeStatus
LinuxLinux773ca82fa1ee58dd1bf88b6a5ca385ec83a2cac6< 66df9f30673db66ac35145820a8e24906069ae57affected
773ca82fa1ee58dd1bf88b6a5ca385ec83a2cac6< 4166d5234fe8b6c3c7f796a6c198605356c5b355affected
773ca82fa1ee58dd1bf88b6a5ca385ec83a2cac6< a9055300e07d9d6800264d3c2560e1d0144689caaffected
773ca82fa1ee58dd1bf88b6a5ca385ec83a2cac6< 09880592f5a9dc73377d6eb5ac123537b5f8df49affected
773ca82fa1ee58dd1bf88b6a5ca385ec83a2cac6< 80fc6ca2cbde018d52e13f305edcd643911bd94baffected
773ca82fa1ee58dd1bf88b6a5ca385ec83a2cac6< 1985cb3247e87ff6b8ca4bc5f9626f4f51024507affected
773ca82fa1ee58dd1bf88b6a5ca385ec83a2cac6< 883cc33b7af1c448663287f069ef9dfea001e90faffected
773ca82fa1ee58dd1bf88b6a5ca385ec83a2cac6< 7f9f7c697474268d9ef9479df3ddfe7cdcfbbffcaffected
… +10 more rows
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I. Basic Information for CVE-2026-46051

Vulnerability Information
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Vulnerability Title
md/raid5: fix soft lockup in retry_aligned_read()
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: md/raid5: fix soft lockup in retry_aligned_read() When retry_aligned_read() encounters an overlapped stripe, it releases the stripe via raid5_release_stripe() which puts it on the lockless released_stripes llist. In the next raid5d loop iteration, release_stripe_list() drains the stripe onto handle_list (since STRIPE_HANDLE is set by the original IO), but retry_aligned_read() runs before handle_active_stripes() and removes the stripe from handle_list via find_get_stripe() -> list_del_init(). This prevents handle_stripe() from ever processing the stripe to resolve the overlap, causing an infinite loop and soft lockup. Fix this by using __release_stripe() with temp_inactive_list instead of raid5_release_stripe() in the failure path, so the stripe does not go through the released_stripes llist. This allows raid5d to break out of its loop, and the overlap will be resolved when the stripe is eventually processed by handle_stripe().
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md/raid5中retry_aligned_read函数导致软锁，可能因重叠条带未处理而无限循环。
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 773ca82fa1ee58dd1bf88b6a5ca385ec83a2cac6 ~ 66df9f30673db66ac35145820a8e24906069ae57 -
LinuxLinux 3.12 -

II. Public POCs for CVE-2026-46051

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III. Intelligence Information for CVE-2026-46051

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Patches & Fixes for CVE-2026-46051 (8)

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

CVE-2026-458989.8 CRITICALRDMA/iwcm: Fix workqueue list corruption by removing work_list
CVE-2026-459729.8 CRITICALsmb: client: fix potential UAF and double free in smb2_open_file()
CVE-2026-460399.8 CRITICALrxgk: Fix potential integer overflow in length check
CVE-2026-459889.8 CRITICALrxrpc: Fix re-decryption of RESPONSE packets
CVE-2026-460439.1 CRITICALRDMA/rxe: Validate pad and ICRC before payload_size() in rxe_rcv
CVE-2026-459458.8 HIGHiommu/vt-d: Fix race condition during PASID entry replacement
CVE-2026-460568.8 HIGHBluetooth: hci_event: fix potential UAF in SSP passkey handlers
CVE-2026-460378.2 HIGHipv4: icmp: validate reply type before using icmp_pointers
CVE-2026-458438.2 HIGHslip: bound decode() reads against the compressed packet length
CVE-2026-460998.1 HIGHnet: ipv6: fix NOREF dst use in seg6 and rpl lwtunnels
CVE-2026-460108.1 HIGHrxrpc: Fix error handling in rxgk_extract_token()
CVE-2026-460767.9 HIGHKVM: nSVM: Raise #UD if unhandled VMMCALL isn't intercepted by L1
CVE-2026-458527.8 HIGHRDMA/rxe: Fix double free in rxe_srq_from_init
CVE-2026-459707.8 HIGHbonding: alb: fix UAF in rlb_arp_recv during bond up/down
CVE-2026-460067.8 HIGHdrm/nouveau: fix u32 overflow in pushbuf reloc bounds check
CVE-2026-458787.8 HIGHdrm/amdkfd: Fix watch_id bounds checking in debug address watch v2
CVE-2026-459427.8 HIGHext4: fix e4b bitmap inconsistency reports
CVE-2026-459317.8 HIGHaccel/amdxdna: Hold mm structure across iommu_sva_unbind_device()
CVE-2026-459847.8 HIGHgfs2: Fix use-after-free in iomap inline data write path
CVE-2026-459297.8 HIGHovpn: fix possible use-after-free in ovpn_net_xmit

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-2026-46051

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