CVE-2026-72015

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

State: Published
Severity: Not scored
Published: Aug 15, 2026
Updated: Aug 23, 2026
Reserved: Aug 9, 2026

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	e0bdfe8e36f3fbbdc91e70bf927f743ca23917b0 to before bab7dbba38ed3011972c3d9be2dcdca7575cbe32Affected e0bdfe8e36f3fbbdc91e70bf927f743ca23917b0 to before ad12e70d7dc3c94a05efc61d1e4861078e0e162bAffected e0bdfe8e36f3fbbdc91e70bf927f743ca23917b0 to before 52b769165f20b38092f28ce064b4b143471540a7Affected e0bdfe8e36f3fbbdc91e70bf927f743ca23917b0 to before 9168176894332312c12ef052e784735dbf4ffe3fAffected e0bdfe8e36f3fbbdc91e70bf927f743ca23917b0 to before b2fe9e140aa94b2816aab7ebc692b543e418f5e3Affected e0bdfe8e36f3fbbdc91e70bf927f743ca23917b0 to before 52007bfdce5310e8c8a29849bfbfb188a1e50ca0Affected e0bdfe8e36f3fbbdc91e70bf927f743ca23917b0 to before f7628eea9212e185a09df3aea603ca8580b8678dAffected e0bdfe8e36f3fbbdc91e70bf927f743ca23917b0 to before b9f089723aee892efc77c349ae47a6b452b293c4Affected
LinuxLinux	4.19Affected before 4.19Not affected 5.10.266 through 5.10.Not affected 5.15.217 through 5.15.Not affected 6.1.184 through 6.1.Not affected 6.6.148 through 6.6.Not affected 6.12.101 through 6.12.Not affected 6.18.40 through 6.18.Not affected 7.1.5 through 7.1.*Not affected 7.2 and laterNot affected

Product

Versions

LinuxLinux

e0bdfe8e36f3fbbdc91e70bf927f743ca23917b0 to before bab7dbba38ed3011972c3d9be2dcdca7575cbe32Affected
e0bdfe8e36f3fbbdc91e70bf927f743ca23917b0 to before ad12e70d7dc3c94a05efc61d1e4861078e0e162bAffected
e0bdfe8e36f3fbbdc91e70bf927f743ca23917b0 to before 52b769165f20b38092f28ce064b4b143471540a7Affected
e0bdfe8e36f3fbbdc91e70bf927f743ca23917b0 to before 9168176894332312c12ef052e784735dbf4ffe3fAffected
e0bdfe8e36f3fbbdc91e70bf927f743ca23917b0 to before b2fe9e140aa94b2816aab7ebc692b543e418f5e3Affected
e0bdfe8e36f3fbbdc91e70bf927f743ca23917b0 to before 52007bfdce5310e8c8a29849bfbfb188a1e50ca0Affected
e0bdfe8e36f3fbbdc91e70bf927f743ca23917b0 to before f7628eea9212e185a09df3aea603ca8580b8678dAffected
e0bdfe8e36f3fbbdc91e70bf927f743ca23917b0 to before b9f089723aee892efc77c349ae47a6b452b293c4Affected

LinuxLinux

4.19Affected
before 4.19Not affected
5.10.266 through 5.10.*Not affected
5.15.217 through 5.15.*Not affected
6.1.184 through 6.1.*Not affected
6.6.148 through 6.6.*Not affected
6.12.101 through 6.12.*Not affected
6.18.40 through 6.18.*Not affected
7.1.5 through 7.1.*Not affected
7.2 and laterNot affected

References

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