In the Linux kernel, the following vulnerability has been resolved:
md: Fix missing release of 'active_io' for flush
submit_flushes
atomic_set(&mddev->flush_pending, 1);
rdev_for_each_rcu(rdev, mddev)
atomic_inc(&mddev->flush_pending);
bi->bi_end_io = md_end_flush
submit_bio(bi);
/* flush io is done first */
md_end_flush
if (atomic_dec_and_test(&mddev->flush_pending))
percpu_ref_put(&mddev->active_io)
-> active_io is not released
if (atomic_dec_and_test(&mddev->flush_pending))
-> missing release of active_io
For consequence, mddev_suspend() will wait for 'active_io' to be zero
forever.
Fix this problem by releasing 'active_io' in submit_flushes() if
'flush_pending' is decreased to zero.
References
Configurations
Configuration 1 (hide)
|
History
18 Sep 2025, 14:38
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://git.kernel.org/stable/c/02dad157ba11064d073f5499dc33552b227d5d3a - Patch | |
| References | () https://git.kernel.org/stable/c/11f81438927f84edfaaeb5d5f10856c3a1c1fc82 - Patch | |
| References | () https://git.kernel.org/stable/c/6b2ff10390b19a2364af622b6666b690443f9f3f - Patch | |
| References | () https://git.kernel.org/stable/c/855678ed8534518e2b428bcbcec695de9ba248e8 - Patch | |
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.5 |
| CWE | NVD-CWE-noinfo | |
| First Time |
Linux
Linux linux Kernel |
|
| CPE | cpe:2.3:o:linux:linux_kernel:6.8:rc5:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.8:rc3:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.8:rc4:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.8:rc2:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.8:rc1:*:*:*:*:*:* |
Information
Published : 2024-05-01 13:15
Updated : 2025-09-18 14:38
NVD link : CVE-2024-27023
Mitre link : CVE-2024-27023
CVE.ORG link : CVE-2024-27023
JSON object : View
Products Affected
linux
- linux_kernel
CWE