fs/resctrl: Fix double-add of pseudo-locked region's RMID to free list
Summary
| CVE | CVE-2026-72015 |
|---|---|
| State | PUBLISHED |
| Assigner | Linux |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-08-15 06:21:00 UTC |
| Updated | 2026-08-23 13:16:37 UTC |
| 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. |
Risk And Classification
EPSS: 0.002110000 probability, percentile 0.111460000 (date 2026-08-24)
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Linux | Linux | affected e0bdfe8e36f3fbbdc91e70bf927f743ca23917b0 bab7dbba38ed3011972c3d9be2dcdca7575cbe32 git | Not specified |
| CNA | Linux | Linux | affected e0bdfe8e36f3fbbdc91e70bf927f743ca23917b0 ad12e70d7dc3c94a05efc61d1e4861078e0e162b git | Not specified |
| CNA | Linux | Linux | affected e0bdfe8e36f3fbbdc91e70bf927f743ca23917b0 52b769165f20b38092f28ce064b4b143471540a7 git | Not specified |
| CNA | Linux | Linux | affected e0bdfe8e36f3fbbdc91e70bf927f743ca23917b0 9168176894332312c12ef052e784735dbf4ffe3f git | Not specified |
| CNA | Linux | Linux | affected e0bdfe8e36f3fbbdc91e70bf927f743ca23917b0 b2fe9e140aa94b2816aab7ebc692b543e418f5e3 git | Not specified |
| CNA | Linux | Linux | affected e0bdfe8e36f3fbbdc91e70bf927f743ca23917b0 52007bfdce5310e8c8a29849bfbfb188a1e50ca0 git | Not specified |
| CNA | Linux | Linux | affected e0bdfe8e36f3fbbdc91e70bf927f743ca23917b0 f7628eea9212e185a09df3aea603ca8580b8678d git | Not specified |
| CNA | Linux | Linux | affected e0bdfe8e36f3fbbdc91e70bf927f743ca23917b0 b9f089723aee892efc77c349ae47a6b452b293c4 git | Not specified |
| CNA | Linux | Linux | affected 4.19 | Not specified |
| CNA | Linux | Linux | unaffected 4.19 semver | Not specified |
| CNA | Linux | Linux | unaffected 5.10.266 5.10.* semver | Not specified |
| CNA | Linux | Linux | unaffected 5.15.217 5.15.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.1.184 6.1.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.6.148 6.6.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.12.101 6.12.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.18.40 6.18.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.1.5 7.1.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.2 * original_commit_for_fix | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| git.kernel.org/stable/c/f7628eea9212e185a09df3aea603ca8580b8678d | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/52b769165f20b38092f28ce064b4b143471540a7 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/52007bfdce5310e8c8a29849bfbfb188a1e50ca0 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/b2fe9e140aa94b2816aab7ebc692b543e418f5e3 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/9168176894332312c12ef052e784735dbf4ffe3f | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/ad12e70d7dc3c94a05efc61d1e4861078e0e162b | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/b9f089723aee892efc77c349ae47a6b452b293c4 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/bab7dbba38ed3011972c3d9be2dcdca7575cbe32 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.