Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.

A flaw was found in the Linux kernel's md/raid5 driver, specifically introduced by commit 5e2cf333b7bd. This commit triggers a race condition wherein the system hangs due to improper handling of MD_SB_CHANGE_PENDING flags. During the execution of md_write_start, if MD_SB_CHANGE_PENDING is set and concurrently cleared by raid5d, it can lead to a deadlock situation. This results in system unresponsiveness, potentially causing a denial of service (DoS).

Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.

In the Linux kernel, the following vulnerability has been resolved: Revert "md/raid5: Wait for MD_SB_CHANGE_PENDING in raid5d" This reverts commit 5e2cf333b7bd5d3e62595a44d598a254c697cd74. That commit introduced the following race and can cause system hung. md_write_start: raid5d: // mddev->in_sync == 1 set "MD_SB_CHANGE_PENDING" // running before md_write_start wakeup it waiting "MD_SB_CHANGE_PENDING" cleared >>>>>>>>> hung wakeup mddev->thread ... waiting "MD_SB_CHANGE_PENDING" cleared >>>> hung, raid5d should clear this flag but get hung by same flag. The issue reverted commit fixing is fixed by last patch in a new way.