{"id":"CVE-2026-93073","title":"In the Linux kernel, the following vulnerability has been resolved:\n\ndax: read holder_ops once in dax_holder_notify_failure()\n\ndax_holder_notify_failure() reads dax_dev->holder_ops twice without\nREAD_ONCE() -- once for the NULL check and…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\ndax: read holder_ops once in dax_holder_notify_failure()\n\ndax_holder_notify_failure() reads dax_dev->holder_ops twice without\nREAD_ONCE() -- once for the NULL check and…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 8012b866085523758780850087102421dbcce522 < 1661b9bf78def01a8c96409569772d9b2592f4ba","Linux >= 8012b866085523758780850087102421dbcce522 < 0a42180d5410c98829ee72d1d426fb7faf9e6873","Linux >= 8012b866085523758780850087102421dbcce522 < ee1251621d1c7cf3155c6704542cbb358d799968","Linux >= 8012b866085523758780850087102421dbcce522 < 6a37acecc7c29136235cbc446a1b89e81414344b","Linux >= 8012b866085523758780850087102421dbcce522 < eb412f80311fc7ab6eb3203091a3fe59a5e9fd30","Linux >= 8012b866085523758780850087102421dbcce522 < 7ae9d15bdcde0f2955ae13b6a95587f9e23b2359","Linux 6.0"],"published":"2026-09-17","updated":"2026-09-17","sourceUpdated":"2026-09-17T17:18:01.207","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-93073","references":[{"url":"https://git.kernel.org/stable/c/0a42180d5410c98829ee72d1d426fb7faf9e6873","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/1661b9bf78def01a8c96409569772d9b2592f4ba","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/6a37acecc7c29136235cbc446a1b89e81414344b","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/7ae9d15bdcde0f2955ae13b6a95587f9e23b2359","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/eb412f80311fc7ab6eb3203091a3fe59a5e9fd30","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/ee1251621d1c7cf3155c6704542cbb358d799968","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-09-17T16:21:47.764Z","epss":0.0018,"epssPercentile":0.0782,"slug":"CVE-2026-93073","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\ndax: read holder_ops once in dax_holder_notify_failure()\n\ndax_holder_notify_failure() reads dax_dev->holder_ops twice without\nREAD_ONCE() -- once for the NULL check and once for the indirect\nnotify_failure() call. A concurrent fs_put_dax() can clear holder_ops\nbetween the two reads, so the check can observe a non-NULL pointer while\nthe call dereferences NULL. (kill_dax() also clears holder_ops, but only\nafter synchronize_srcu(), so it cannot race a reader that is inside\ndax_read_lock(); fs_put_dax() does no such synchronization.)\n\nFetch holder_ops once into a local with READ_ONCE() so the NULL check and\nthe indirect call observe the same value.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}