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CVE-2026-72015— fs/resctrl: Fix double-add of pseudo-locked region's RMID to free 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 4.19版本存在安全漏洞，该漏洞源于伪锁定组的RMID被双重释放，导致RMID被重复添加到空闲链表，可能引发系统崩溃或内存破坏。

AI Predicted 4.4 Difficulty: Hard EPSS 0.20% · P10

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux e0bdfe8e36f3fbbdc91e70bf927f743ca23917b0< bab7dbba38ed3011972c3d9be2dcdca7575cbe32 affected
e0bdfe8e36f3fbbdc91e70bf927f743ca23917b0< ad12e70d7dc3c94a05efc61d1e4861078e0e162b affected
e0bdfe8e36f3fbbdc91e70bf927f743ca23917b0< 52b769165f20b38092f28ce064b4b143471540a7 affected
e0bdfe8e36f3fbbdc91e70bf927f743ca23917b0< 9168176894332312c12ef052e784735dbf4ffe3f affected
e0bdfe8e36f3fbbdc91e70bf927f743ca23917b0< b2fe9e140aa94b2816aab7ebc692b543e418f5e3 affected
e0bdfe8e36f3fbbdc91e70bf927f743ca23917b0< 52007bfdce5310e8c8a29849bfbfb188a1e50ca0 affected
e0bdfe8e36f3fbbdc91e70bf927f743ca23917b0< f7628eea9212e185a09df3aea603ca8580b8678d affected
e0bdfe8e36f3fbbdc91e70bf927f743ca23917b0< b9f089723aee892efc77c349ae47a6b452b293c4 affected
… +10 more rows
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I. Basic Information for CVE-2026-72015

Vulnerability Information
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Vulnerability Title
fs/resctrl: Fix double-add of pseudo-locked region's RMID to free list
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: fs/resctrl: Fix double-add of pseudo-locked region's RMID to free list A pseudo-locked group's RMID is freed when it is created. On unmount rmdir_all_sub() unconditionally frees all RMID of all groups, resulting in a double-free of the pseudo-locked group's RMID. The consequence of this is that the original free results in the pseudo-locked group's RMID being added to the rmid_free_lru linked list and the second free then attempts to add the same RMID entry to the rmid_free_lru again. Do not double-free a pseudo-locked group's RMID.
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 4.19版本存在安全漏洞，该漏洞源于伪锁定组的RMID被双重释放，导致RMID被重复添加到空闲链表，可能引发系统崩溃或内存破坏。
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 e0bdfe8e36f3fbbdc91e70bf927f743ca23917b0 ~ bab7dbba38ed3011972c3d9be2dcdca7575cbe32 -
Linux Linux 4.19 -

II. Public POCs for CVE-2026-72015

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III. Intelligence Information for CVE-2026-72015

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Patches & Fixes for CVE-2026-72015 (6)

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

CVE-2026-74475 10.0 CRITICAL vxlan: use neigh_ha_snapshot() in route_shortcircuit()
CVE-2026-72408 10.0 CRITICAL geneve: gate GRO hint in geneve_gro_complete() on gs->gro_hint
CVE-2026-74309 10.0 CRITICAL vdpa/octeon_ep: fix IRQ-to-ring mapping in interrupt handler
CVE-2026-72407 10.0 CRITICAL geneve: validate inner network offset in geneve_gro_complete()
CVE-2026-74280 10.0 CRITICAL crypto: marvell/octeontx - fix DMA cleanup using wrong loop index
CVE-2026-74279 10.0 CRITICAL crypto: cavium/cpt - fix DMA cleanup using wrong loop index
CVE-2026-72421 10.0 CRITICAL ipv4: fib: Don't ignore error route in local/main tables.
CVE-2026-72493 9.9 CRITICAL net: serialize netif_running() check in enqueue_to_backlog()
CVE-2026-72217 9.8 CRITICAL SUNRPC: Bound-check xdr_buf_to_bvec() stores before writing
CVE-2026-72491 9.8 CRITICAL net/9p: fix race condition on rdma->state in trans_rdma.c
CVE-2026-72221 9.8 CRITICAL sunrpc: wait for in-flight TLS handshake callback when cancel loses race
CVE-2026-72222 9.8 CRITICAL sunrpc: pin svc_xprt across the asynchronous TLS handshake callback
CVE-2026-72220 9.8 CRITICAL sunrpc: harden rq_procinfo lifecycle to prevent double-free
CVE-2026-72398 9.8 CRITICAL sctp: add INIT verification after cookie unpacking
CVE-2026-72477 9.8 CRITICAL fs/ntfs3: call _ntfs_bad_inode() when failing to rename
CVE-2026-72466 9.8 CRITICAL xprtrdma: Fix bcall rep leak and unbounded peek
CVE-2026-72472 9.8 CRITICAL nfs: use nfsi->rwsem to protect traversal of the file lock list
CVE-2026-72473 9.8 CRITICAL xprtrdma: Decouple req recycling from RPC completion
CVE-2026-72399 9.8 CRITICAL net: enetc: check the number of BDs needed for xdp_frame
CVE-2026-74398 9.8 CRITICAL ipv6: addrconf: bail out of dad_failure when state is no longer POSTDAD

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-2026-72015

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