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CVE-2026-72015

fs/resctrl: Fix double-add of pseudo-locked region's RMID to free list

N/A
Published: August 15, 2026 at 05:51 AM UTC
Updated: August 23, 2026 at 01:17 PM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
N/A
Exploit prediction
EPSS 0.2%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel· Linux
95%
4.19 ≤ v < 5.10.2664.19 ≤ v < 5.15.2174.19 ≤ v < 6.1.1844.19 ≤ v < 6.12.1014.19 ≤ v < 6.18.404.19 ≤ v < 6.6.1484.19 ≤ v < 7.1.54.19 ≤ v < 7.24.19e0bdfe8e36f3fbbdc91e70bf927f743ca23917b0
Vendor states this is fixed in 52007bfdce5310e8c8a29849bfbfb188a1e50ca0 (fixed)
Vendor states this is fixed in 52b769165f20b38092f28ce064b4b143471540a7 (fixed)
Vendor states this is fixed in 9168176894332312c12ef052e784735dbf4ffe3f (fixed)
Vendor states this is fixed in ad12e70d7dc3c94a05efc61d1e4861078e0e162b (fixed)
Vendor states this is fixed in b2fe9e140aa94b2816aab7ebc692b543e418f5e3 (fixed)
Vendor states this is fixed in b9f089723aee892efc77c349ae47a6b452b293c4 (fixed)
Vendor states this is fixed in bab7dbba38ed3011972c3d9be2dcdca7575cbe32 (fixed)
Vendor states this is fixed in f7628eea9212e185a09df3aea603ca8580b8678d (fixed)
Vendor states this is fixed in 4.19 (unaffected)
Vendor states this is fixed in 5.10.266 (unaffected)
Vendor states this is fixed in 5.15.217 (unaffected)
Vendor states this is fixed in 6.1.184 (unaffected)
Vendor states this is fixed in 6.12.101 (unaffected)
Vendor states this is fixed in 6.18.40 (unaffected)
Vendor states this is fixed in 6.6.148 (unaffected)
Vendor states this is fixed in 7.1.5 (unaffected)
Vendor states this is fixed in 7.2 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (8)

Source: cverecord
https://git.kernel.org/stable/c/9168176894332312c12ef052e784735dbf4ffe3f
Source: cverecord
https://git.kernel.org/stable/c/b2fe9e140aa94b2816aab7ebc692b543e418f5e3
Source: cverecord
https://git.kernel.org/stable/c/52007bfdce5310e8c8a29849bfbfb188a1e50ca0
Source: cverecord
https://git.kernel.org/stable/c/f7628eea9212e185a09df3aea603ca8580b8678d
Source: cverecord
https://git.kernel.org/stable/c/b9f089723aee892efc77c349ae47a6b452b293c4
Source: cverecord
https://git.kernel.org/stable/c/bab7dbba38ed3011972c3d9be2dcdca7575cbe32
Source: cverecord
https://git.kernel.org/stable/c/ad12e70d7dc3c94a05efc61d1e4861078e0e162b
Source: cverecord
https://git.kernel.org/stable/c/52b769165f20b38092f28ce064b4b143471540a7

Quick Info

StatusRECEIVED

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