In the Linux kernel, the following vulnerability has been resolved:
md/raid5: fix IO hang with degraded array with llbitmap
When llbitmap bit state is still unwritten, any new write should force rcw, as bitmapops->blockssynced() is checked in handlestripedirtying(). However, later the same check is missing in needthisblock(), causing stripe to deadloop during handling because handlestripe() will decide to go to handlestripefill(), meanwhile needthis_block() always return 0 and nothing is handled.
{
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45953.json",
"cna_assigner": "Linux"
}