Linux Kernel RAID5 bm_seq WrapVulnerability (md/raid5)
CVE-2026-98902 Published on October 23, 2026
md/raid5: let stripe batch bm_seq comparison wrap-safe
In the Linux kernel, the following vulnerability has been resolved:
md/raid5: let stripe batch bm_seq comparison wrap-safe
Once the 32-bit seq wraps, a newer bm_seq can look smaller
than old, so .. covert to wrap-safe calculate way.
Products Associated with CVE-2026-98902
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Affected Versions
Linux:- Version 2b6b24574256c05be145936f1493aec74c6904e5 and below 647c7289a3960118e249c0a53da6f1ebba1e47a3 is affected.
- Version 2b6b24574256c05be145936f1493aec74c6904e5 and below ffdd3aee932fc293456678f6b0200ffe9bf12a6d is affected.
- Version 2b6b24574256c05be145936f1493aec74c6904e5 and below 628b14d0744bd5dfe176ea93559071cdcde14255 is affected.
- Version 2b6b24574256c05be145936f1493aec74c6904e5 and below 2fdc51228d9a8cad2d727d5aef732cc66fc6d56e is affected.
- Version 2b6b24574256c05be145936f1493aec74c6904e5 and below c5c89e1a872a84019f674f5107111e6e6b7cc30f is affected.
- Version 2b6b24574256c05be145936f1493aec74c6904e5 and below cc8eb1715673de850f14376782151f68f73ae3ce is affected.
- Version 2b6b24574256c05be145936f1493aec74c6904e5 and below 00e93faf4cea9e8802ac5dfee0952d84fc95c40f is affected.
- Version 4.1 is affected.
- Before 4.1 is unaffected.
- Version 5.10.271, <= 5.10.* is unaffected.
- Version 5.15.222, <= 5.15.* is unaffected.
- Version 6.1.189, <= 6.1.* is unaffected.
- Version 6.6.158, <= 6.6.* is unaffected.
- Version 6.12.111, <= 6.12.* is unaffected.
- Version 6.18.53, <= 6.18.* is unaffected.
- Version 7.2, <= * is unaffected.