{"id":"CVE-2026-72015","state":"PUBLISHED","title":"fs/resctrl: Fix double-add of pseudo-locked region's RMID to free list","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nfs/resctrl: Fix double-add of pseudo-locked region's RMID to free list\n\nA pseudo-locked group's RMID is freed when it is created. On unmount\nrmdir_all_sub() unconditionally frees all RMID of all groups, resulting\nin a double-free of the pseudo-locked group's RMID. The consequence of this\nis that the original free results in the pseudo-locked group's RMID being\nadded to the rmid_free_lru linked list and the second free then attempts\nto add the same RMID entry to the rmid_free_lru again.\n\nDo not double-free a pseudo-locked group's RMID.","publishedAt":"2026-08-15T05:51:43.390Z","updatedAt":"2026-08-23T12:46:25.496Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"e0bdfe8e36f3fbbdc91e70bf927f743ca23917b0","status":"affected","lessThan":"bab7dbba38ed3011972c3d9be2dcdca7575cbe32","versionType":"git"},{"version":"e0bdfe8e36f3fbbdc91e70bf927f743ca23917b0","status":"affected","lessThan":"ad12e70d7dc3c94a05efc61d1e4861078e0e162b","versionType":"git"},{"version":"e0bdfe8e36f3fbbdc91e70bf927f743ca23917b0","status":"affected","lessThan":"52b769165f20b38092f28ce064b4b143471540a7","versionType":"git"},{"version":"e0bdfe8e36f3fbbdc91e70bf927f743ca23917b0","status":"affected","lessThan":"9168176894332312c12ef052e784735dbf4ffe3f","versionType":"git"},{"version":"e0bdfe8e36f3fbbdc91e70bf927f743ca23917b0","status":"affected","lessThan":"b2fe9e140aa94b2816aab7ebc692b543e418f5e3","versionType":"git"},{"version":"e0bdfe8e36f3fbbdc91e70bf927f743ca23917b0","status":"affected","lessThan":"52007bfdce5310e8c8a29849bfbfb188a1e50ca0","versionType":"git"},{"version":"e0bdfe8e36f3fbbdc91e70bf927f743ca23917b0","status":"affected","lessThan":"f7628eea9212e185a09df3aea603ca8580b8678d","versionType":"git"},{"version":"e0bdfe8e36f3fbbdc91e70bf927f743ca23917b0","status":"affected","lessThan":"b9f089723aee892efc77c349ae47a6b452b293c4","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/resctrl/rdtgroup.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.19","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.19","versionType":"semver"},{"version":"5.10.266","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.217","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.184","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.148","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.101","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.40","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.5","status":"unaffected","lessThanOrEqual":"7.1.*","versionType":"semver"},{"version":"7.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/resctrl/rdtgroup.c"]}],"references":["https://git.kernel.org/stable/c/bab7dbba38ed3011972c3d9be2dcdca7575cbe32","https://git.kernel.org/stable/c/ad12e70d7dc3c94a05efc61d1e4861078e0e162b","https://git.kernel.org/stable/c/52b769165f20b38092f28ce064b4b143471540a7","https://git.kernel.org/stable/c/9168176894332312c12ef052e784735dbf4ffe3f","https://git.kernel.org/stable/c/b2fe9e140aa94b2816aab7ebc692b543e418f5e3","https://git.kernel.org/stable/c/52007bfdce5310e8c8a29849bfbfb188a1e50ca0","https://git.kernel.org/stable/c/f7628eea9212e185a09df3aea603ca8580b8678d","https://git.kernel.org/stable/c/b9f089723aee892efc77c349ae47a6b452b293c4"],"weaknesses":[],"ingestedAt":"2026-10-29T20:12:58.252Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/72xxx/CVE-2026-72015.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-72015","state":"PUBLISHED","datePublished":"2026-08-15T05:51:43.390Z","dateUpdated":"2026-08-23T12:46:25.496Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-08-09T03:40:39.900Z"},"containers":{"cna":{"title":"fs/resctrl: Fix double-add of pseudo-locked region's RMID to free list","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nfs/resctrl: Fix double-add of pseudo-locked region's RMID to free list\n\nA pseudo-locked group's RMID is freed when it is created. On unmount\nrmdir_all_sub() unconditionally frees all RMID of all groups, resulting\nin a double-free of the pseudo-locked group's RMID. The consequence of this\nis that the original free results in the pseudo-locked group's RMID being\nadded to the rmid_free_lru linked list and the second free then attempts\nto add the same RMID entry to the rmid_free_lru again.\n\nDo not double-free a pseudo-locked group's RMID."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"e0bdfe8e36f3fbbdc91e70bf927f743ca23917b0","status":"affected","lessThan":"bab7dbba38ed3011972c3d9be2dcdca7575cbe32","versionType":"git"},{"version":"e0bdfe8e36f3fbbdc91e70bf927f743ca23917b0","status":"affected","lessThan":"ad12e70d7dc3c94a05efc61d1e4861078e0e162b","versionType":"git"},{"version":"e0bdfe8e36f3fbbdc91e70bf927f743ca23917b0","status":"affected","lessThan":"52b769165f20b38092f28ce064b4b143471540a7","versionType":"git"},{"version":"e0bdfe8e36f3fbbdc91e70bf927f743ca23917b0","status":"affected","lessThan":"9168176894332312c12ef052e784735dbf4ffe3f","versionType":"git"},{"version":"e0bdfe8e36f3fbbdc91e70bf927f743ca23917b0","status":"affected","lessThan":"b2fe9e140aa94b2816aab7ebc692b543e418f5e3","versionType":"git"},{"version":"e0bdfe8e36f3fbbdc91e70bf927f743ca23917b0","status":"affected","lessThan":"52007bfdce5310e8c8a29849bfbfb188a1e50ca0","versionType":"git"},{"version":"e0bdfe8e36f3fbbdc91e70bf927f743ca23917b0","status":"affected","lessThan":"f7628eea9212e185a09df3aea603ca8580b8678d","versionType":"git"},{"version":"e0bdfe8e36f3fbbdc91e70bf927f743ca23917b0","status":"affected","lessThan":"b9f089723aee892efc77c349ae47a6b452b293c4","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/resctrl/rdtgroup.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.19","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.19","versionType":"semver"},{"version":"5.10.266","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.217","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.184","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.148","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.101","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.40","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.5","status":"unaffected","lessThanOrEqual":"7.1.*","versionType":"semver"},{"version":"7.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/resctrl/rdtgroup.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/bab7dbba38ed3011972c3d9be2dcdca7575cbe32"},{"url":"https://git.kernel.org/stable/c/ad12e70d7dc3c94a05efc61d1e4861078e0e162b"},{"url":"https://git.kernel.org/stable/c/52b769165f20b38092f28ce064b4b143471540a7"},{"url":"https://git.kernel.org/stable/c/9168176894332312c12ef052e784735dbf4ffe3f"},{"url":"https://git.kernel.org/stable/c/b2fe9e140aa94b2816aab7ebc692b543e418f5e3"},{"url":"https://git.kernel.org/stable/c/52007bfdce5310e8c8a29849bfbfb188a1e50ca0"},{"url":"https://git.kernel.org/stable/c/f7628eea9212e185a09df3aea603ca8580b8678d"},{"url":"https://git.kernel.org/stable/c/b9f089723aee892efc77c349ae47a6b452b293c4"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-08-23T12:46:25.496Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19","versionEndExcluding":"5.10.266"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19","versionEndExcluding":"5.15.217"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19","versionEndExcluding":"6.1.184"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19","versionEndExcluding":"6.6.148"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19","versionEndExcluding":"6.12.101"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19","versionEndExcluding":"6.18.40"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19","versionEndExcluding":"7.1.5"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19","versionEndExcluding":"7.2"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}