CVE-2026-72015
fs/resctrl: Fix double-add of pseudo-locked region's RMID to free list
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
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.
Timeline
- CVE published
- Record last updated
Affected versions
- Linux Linux
Version range not reported
- Linux Linux
4.19
References 8
git.kernel.org
- stable/c/bab7dbba38ed3011972c3d9be2dcdca7575cbe32
- stable/c/ad12e70d7dc3c94a05efc61d1e4861078e0e162b
- stable/c/52b769165f20b38092f28ce064b4b143471540a7
- stable/c/9168176894332312c12ef052e784735dbf4ffe3f
- stable/c/b2fe9e140aa94b2816aab7ebc692b543e418f5e3
- stable/c/52007bfdce5310e8c8a29849bfbfb188a1e50ca0
- stable/c/f7628eea9212e185a09df3aea603ca8580b8678d
- stable/c/b9f089723aee892efc77c349ae47a6b452b293c4