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CVE-2026-72467— xprtrdma: Check frwr_wp_create() during connect

AI Predicted 5.5 Difficulty: Hard EPSS 0.21% · P11

Affected Version Matrix 14

VendorProductVersion RangeStatus
LinuxLinux21037b8c2258ec40de3b31be9ced43ceb3b784f7< 3b252fe1778b2cdd68283146455929801bc2abd7affected
21037b8c2258ec40de3b31be9ced43ceb3b784f7< dd798b76a3481e392820c3ae86ed4592858c6b0faffected
21037b8c2258ec40de3b31be9ced43ceb3b784f7< 6b7be4f3feae322f1c2c40a3bdc99db93574a49eaffected
21037b8c2258ec40de3b31be9ced43ceb3b784f7< 7471e66373a4444a57ef2192f8c4081202c54f45affected
21037b8c2258ec40de3b31be9ced43ceb3b784f7< ef3b79edf14b6bfb0d21a26ccb0463f9cf82c6a9affected
21037b8c2258ec40de3b31be9ced43ceb3b784f7< 0f13fc7c7d2e0427517e63c739277a4cd338b0c5affected
5.16affected
< 5.16unaffected
… +6 more rows
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I. Basic Information for CVE-2026-72467

Vulnerability Information
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Vulnerability Title
xprtrdma: Check frwr_wp_create() during connect
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: xprtrdma: Check frwr_wp_create() during connect frwr_wp_create() creates the singleton Memory Region used to encode padding for Write chunks whose payload length is not XDR-aligned. Its failure paths return a negative errno and leave ep->re_write_pad_mr set to NULL. rpcrdma_xprt_connect() currently ignores that return value. If frwr_wp_create() fails after the rest of the connection setup succeeds, xprt_rdma_connect_worker() treats the connection attempt as successful and sets XPRT_CONNECTED. A later NFS/RDMA read with a non-4-byte-aligned receive page length reaches rpcrdma_encode_write_list(), passes the NULL write-pad MR to encode_rdma_segment(), and dereferences it. This is locally triggerable on an NFS/RDMA client after a connect or reconnect hits a local MR allocation, DMA-map, MR-map, or post-send failure; a remote peer alone cannot force the local MR setup failure. Check the return value and fail the connect as -ENOTCONN, matching the adjacent setup failures. This keeps XPRT_CONNECTED clear and lets the normal reconnect path retry.
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 5.16版本存在安全漏洞，该漏洞源于未检查frwr_wp_create()返回值，可能导致空指针取消引用。
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

VendorProductAffected VersionsCPESubscribe
LinuxLinux 21037b8c2258ec40de3b31be9ced43ceb3b784f7 ~ 3b252fe1778b2cdd68283146455929801bc2abd7 -
LinuxLinux 5.16 -

II. Public POCs for CVE-2026-72467

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III. Intelligence Information for CVE-2026-72467

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Patches & Fixes for CVE-2026-72467 (6)

Same Patch Batch · Linux · 2026-08-15 · 845 CVEs total

CVE-2026-7447510.0 CRITICALvxlan: use neigh_ha_snapshot() in route_shortcircuit()
CVE-2026-7428010.0 CRITICALcrypto: marvell/octeontx - fix DMA cleanup using wrong loop index
CVE-2026-7427910.0 CRITICALcrypto: cavium/cpt - fix DMA cleanup using wrong loop index
CVE-2026-7240710.0 CRITICALgeneve: validate inner network offset in geneve_gro_complete()
CVE-2026-7430910.0 CRITICALvdpa/octeon_ep: fix IRQ-to-ring mapping in interrupt handler
CVE-2026-7240810.0 CRITICALgeneve: gate GRO hint in geneve_gro_complete() on gs->gro_hint
CVE-2026-7242110.0 CRITICALipv4: fib: Don't ignore error route in local/main tables.
CVE-2026-724939.9 CRITICALnet: serialize netif_running() check in enqueue_to_backlog()
CVE-2026-724639.8 CRITICALxfrm: Fix dev use-after-free in xfrm async resumption
CVE-2026-722489.8 CRITICALnetfilter: flowtable: support IPIP tunnel with direct xmit
CVE-2026-723819.8 CRITICALksmbd: fix use-after-free of fp->owner.name in durable handle owner check
CVE-2026-724779.8 CRITICALfs/ntfs3: call _ntfs_bad_inode() when failing to rename
CVE-2026-724739.8 CRITICALxprtrdma: Decouple req recycling from RPC completion
CVE-2026-724729.8 CRITICALnfs: use nfsi->rwsem to protect traversal of the file lock list
CVE-2026-744069.8 CRITICALvxlan: Fix potential null-ptr-deref in vxlan_gro_prepare_receive().
CVE-2026-722229.8 CRITICALsunrpc: pin svc_xprt across the asynchronous TLS handshake callback
CVE-2026-744019.8 CRITICALdlm: fix add msg handle in send_queue ordered
CVE-2026-721379.8 CRITICALxfrm: nat_keepalive: avoid double free on send error
CVE-2026-743769.8 CRITICALmd/raid10: reset read_slot when reusing r10bio for discard
CVE-2026-721309.8 CRITICALnvmet-auth: reject short AUTH_RECEIVE buffers

Showing top 20 of 845 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-72467

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