CVE-2026-45953
md/raid5: fix IO hang with degraded array with llbitmap
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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 bitmap_ops->blocks_synced() is checked in handle_stripe_dirtying(). However, later the same check is missing in need_this_block(), causing stripe to deadloop during handling because handle_stripe() will decide to go to handle_stripe_fill(), meanwhile need_this_block() always return 0 and nothing is handled.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | May 27, 2026 |
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Affected Versions
Linux / Linux
5ab829f1971dc99f2aac10846c378e67fc875abc < 870b9f15867b0e70f3459ef3974b043e8b229690 5ab829f1971dc99f2aac10846c378e67fc875abc < 28ef299e7a5b81817f8ca8297c2ddff28f5da5e8 5ab829f1971dc99f2aac10846c378e67fc875abc < cd1635d844d26471c56c0a432abdee12fc9ad735
Linux / Linux
6.18