cbcvebase.
CVE-2025-71135
published 2026-01-14

CVE-2025-71135: In the Linux kernel, the following vulnerability has been resolved: md/raid5: fix possible null-pointer dereferences in raid5_store_group_thread_cnt() The…

PriorityP419medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.15%
4.7th percentile
In the Linux kernel, the following vulnerability has been resolved: md/raid5: fix possible null-pointer dereferences in raid5_store_group_thread_cnt() The variable mddev->private is first assigned to conf and then checked: conf = mddev->private; if (!conf) ... If conf is NULL, then mddev->private is also NULL. In this case, null-pointer dereferences can occur when calling raid5_quiesce(): raid5_quiesce(mddev, true); raid5_quiesce(mddev, false); since mddev->private is assigned to conf again in raid5_quiesce(), and conf is dereferenced in several places, for example: conf->quiesce = 0; wake_up(&conf->wait_for_quiescent); To fix this issue, the function should unlock mddev and return before invoking raid5_quiesce() when conf is NULL, following the existing pattern in raid5_change_consistency_policy().

Affected

43 ranges· showing 25
VendorProductVersion rangeFixed in
debianlinux< linux 6.18.5-1 (forky)linux 6.18.5-1 (forky)
linuxlinux
linuxlinux>= 6.12.4 < 6.12.646.12.64
linuxlinux>= be19e6e4339d1579d5f2fae8ce4facf9521dbbfc < 20597b7229aea8b5bc45cd92097640257c7fc33b20597b7229aea8b5bc45cd92097640257c7fc33b
linuxlinux>= fa1944bbe6220eb929e2c02e5e8706b908565711 < e5abb6af905de6b2fead8a0b3f32ab0b81468a01e5abb6af905de6b2fead8a0b3f32ab0b81468a01
linuxlinux>= fa1944bbe6220eb929e2c02e5e8706b908565711 < 7ad6ef91d8745d04aff9cce7bdbc6320d8e05fe97ad6ef91d8745d04aff9cce7bdbc6320d8e05fe9
linuxlinux_kernel
linuxlinux_kernel
linuxlinux_kernel>= 0 < 6.12.69-16.12.69-1
linuxlinux_kernel>= 0 < 6.18.5-16.18.5-1
linuxlinux_kernel>= 0 < 6.12.646.12.64
linuxlinux_kernel>= 6.12.4 < 6.12.646.12.64
linuxlinux_kernel>= 6.13.0 < 6.18.46.18.4
linuxlinux_kernel>= 6.13.1 < 6.18.46.18.4
ubuntulinux-aws
ubuntulinux-aws-6.17
ubuntulinux-aws-fips
ubuntulinux-azure
ubuntulinux-azure-6.17
ubuntulinux-azure-6.8
ubuntulinux-azure-fips
ubuntulinux-fips
ubuntulinux-gcp
ubuntulinux-gcp-6.17
ubuntulinux-gcp-6.8

CVSS provenance

nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv5.5MEDIUM
vendor_ubuntu6.4MEDIUM
vendor_debian5.5LOW
vendor_redhat5.5MEDIUM
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