CVE-2025-71225
- Source
- https://cve.org/CVERecord?id=CVE-2025-71225
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-71225.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2025-71225
- Downstream
AZL (1)
BELL (1)
CLSA (1)
DEBIAN (1)
ECHO (1)
openSUSE (1)
ROOT (4)
SUSE (10)
- Related
- Published
- 2026-02-18T14:21:46Z
- Modified
- 2026-10-22T02:47:40Z
- Summary
- md: suspend array while updating raid_disks via sysfs
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
md: suspend array while updating raid_disks via sysfs
In raid1_reshape(), freeze_array() is called before modifying the r1bio memory pool (conf->r1bio_pool) and conf->raid_disks, and unfreeze_array() is called after the update is completed.
However, freeze_array() only waits until nr_sync_pending and (nr_pending - nr_queued) of all buckets reaches zero. When an I/O error occurs, nr_queued is increased and the corresponding r1bio is queued to either retry_list or bio_end_io_list. As a result, freeze_array() may unblock before these r1bios are released.
This can lead to a situation where conf->raid_disks and the mempool have already been updated while queued r1bios, allocated with the old raid_disks value, are later released. Consequently, free_r1bio() may access memory out of bounds in put_all_bios() and release r1bios of the wrong size to the new mempool, potentially causing issues with the mempool as well.
Since only normal I/O might increase nr_queued while an I/O error occurs, suspending the array avoids this issue.
Note: Updating raid_disks via ioctl SET_ARRAY_INFO already suspends the array. Therefore, we suspend the array when updating raid_disks via sysfs to avoid this issue too.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/71xxx/CVE-2025-71225.json" }- References
-
- https://git.kernel.org/stable/c/0107b18cd8ac17eb3e54786adc05a85cdbb6ef22
- https://git.kernel.org/stable/c/165d1359f945b72c5f90088f60d48ff46115269e
- https://git.kernel.org/stable/c/2cc583653bbe050bacd1cadcc9776d39bf449740
- https://git.kernel.org/stable/c/863b9b7be824a6b2c0587532d3ece3022c6dd451
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/71xxx/CVE-2025-71225.json
- https://nvd.nist.gov/vuln/detail/CVE-2025-71225
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducede2d59925221cd562e07fee38ec8839f7209ae603Fixed863b9b7be824a6b2c0587532d3ece3022c6dd451Fixed165d1359f945b72c5f90088f60d48ff46115269eFixed0107b18cd8ac17eb3e54786adc05a85cdbb6ef22Fixed2cc583653bbe050bacd1cadcc9776d39bf449740
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced3.4.59Fixed3.5
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced3.9.7Fixed3.10
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced1b9203bb4c658c0242afa6fdb025c71d2fc3ad76
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced8ccf6cfb157419847f3cb2bfdfbcdbd39860e8e9