5.5

CVE-2026-45953

md/raid5: fix IO hang with degraded array with llbitmap

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 6.18 < 6.18.14
Linux ≫ Linux Kernel Version >= 6.19 < 6.19.4
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.12% 0.022
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Es wurden noch keine Informationen zu CWE veröffentlicht.
https://git.kernel.org/stable/c/870b9f15867b0e70f3459ef3974b043e8b229690
Patch
https://git.kernel.org/stable/c/28ef299e7a5b81817f8ca8297c2ddff28f5da5e8
Patch
https://git.kernel.org/stable/c/cd1635d844d26471c56c0a432abdee12fc9ad735
Patch