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CVE-2026-72355— netfs: Fix barriering when walking subrequest list

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netfs在重试遍历子请求列表时存在屏障问题，可能导致错误处理应用程序线程刚添加的子请求。

CVSS 9.8 · Critical EPSS 0.55% · P44

Affected Version Matrix 6

VendorProductVersion RangeStatus
LinuxLinux288ace2f57c9d06dd2e42bd80d03747d879a4068< be47c047250671c9225c0319ca4695be9b391c59affected
288ace2f57c9d06dd2e42bd80d03747d879a4068< 5c6ce05e406520290c1d89da97fb3cd70c09137daffected
6.10affected
< 6.10unaffected
7.1.5≤ 7.1.*unaffected
7.2≤ *unaffected
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I. Basic Information for CVE-2026-72355

Vulnerability Information
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Vulnerability Title
netfs: Fix barriering when walking subrequest list
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: netfs: Fix barriering when walking subrequest list Fix the barriering used when walking the subrequest list in retry as there's a possibility of seeing a subreq that's just been added by the application thread.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/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基金会开源的一个操作系统内核。 Linux kernel存在安全漏洞，该漏洞源于netfs在重试遍历子请求列表时存在屏障问题，可能导致错误处理应用程序线程刚添加的子请求。
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 288ace2f57c9d06dd2e42bd80d03747d879a4068 ~ be47c047250671c9225c0319ca4695be9b391c59 -
LinuxLinux 6.10 -

II. Public POCs for CVE-2026-72355

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III. Intelligence Information for CVE-2026-72355

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Patches & Fixes for CVE-2026-72355 (2)

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

CVE-2026-7428010.0 CRITICALcrypto: marvell/octeontx - fix DMA cleanup using wrong loop index
CVE-2026-7430910.0 CRITICALvdpa/octeon_ep: fix IRQ-to-ring mapping in interrupt handler
CVE-2026-7427910.0 CRITICALcrypto: cavium/cpt - fix DMA cleanup using wrong loop index
CVE-2026-7447510.0 CRITICALvxlan: use neigh_ha_snapshot() in route_shortcircuit()
CVE-2026-7240710.0 CRITICALgeneve: validate inner network offset in geneve_gro_complete()
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-2026-724729.8 CRITICALnfs: use nfsi->rwsem to protect traversal of the file lock list
CVE-2026-744289.8 CRITICALrxrpc: Fix double unlock in rxrpc_recvmsg()
CVE-2026-724739.8 CRITICALxprtrdma: Decouple req recycling from RPC completion
CVE-2026-744339.8 CRITICALrxrpc: Fix UAF in rxgk_issue_challenge()
CVE-2026-720989.8 CRITICALdm-verity: fix buffer overflow in FEC calculation
CVE-2026-744349.8 CRITICALrxrpc: Don't move a peeked OOB message onto the pending queue
CVE-2026-722999.8 CRITICALtipc: restrict socket queue dumps in enqueue tracepoints
CVE-2026-724779.8 CRITICALfs/ntfs3: call _ntfs_bad_inode() when failing to rename
CVE-2026-722499.8 CRITICALnetfilter: flowtable: use dst in this direction when pushing IPIP header
CVE-2026-722519.8 CRITICALnetfilter: nf_nat_sip: reload possible stale data pointer
CVE-2026-721309.8 CRITICALnvmet-auth: reject short AUTH_RECEIVE buffers
CVE-2026-722489.8 CRITICALnetfilter: flowtable: support IPIP tunnel with direct xmit

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-2026-72355

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