CVE-2022-49893
published 2025-05-01CVE-2022-49893: In the Linux kernel, the following vulnerability has been resolved: cxl/region: Fix cxl_region leak, cleanup targets at region delete When a region is deleted…
PriorityP417medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.16%
5.6th percentile
In the Linux kernel, the following vulnerability has been resolved:
cxl/region: Fix cxl_region leak, cleanup targets at region delete
When a region is deleted any targets that have been previously assigned
to that region hold references to it. Trigger those references to
drop by detaching all targets at unregister_region() time.
Otherwise that region object will leak as userspace has lost the ability
to detach targets once region sysfs is torn down.
Affected
9 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 6.0.8-1 (bookworm) | linux 6.0.8-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= b9686e8c8e39d4072081ef078c04915ee51c8af4 < 45d9fb4b758b9d602ee7776eb6754b0349946aad | 45d9fb4b758b9d602ee7776eb6754b0349946aad |
| linux | linux | >= b9686e8c8e39d4072081ef078c04915ee51c8af4 < 0d9e734018d70cecf79e2e4c6082167160a0f13f | 0d9e734018d70cecf79e2e4c6082167160a0f13f |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 6.0.8-1 | 6.0.8-1 |
| linux | linux_kernel | >= 0 < 6.0.8-1 | 6.0.8-1 |
| linux | linux_kernel | >= 0 < 6.0.8-1 | 6.0.8-1 |
| linux | linux_kernel | >= 6.0 < 6.0.8 | 6.0.8 |
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_debian5.5MEDIUM
vendor_redhat5.5MEDIUM
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Red Hat
kernel: cxl/region: Fix cxl_region leak, cleanup targets at region delete
vendor_redhat·2025-05-01·CVSS 5.5
CVE-2022-49893 [MEDIUM] kernel: cxl/region: Fix cxl_region leak, cleanup targets at region delete
kernel: cxl/region: Fix cxl_region leak, cleanup targets at region delete
In the Linux kernel, the following vulnerability has been resolved:
cxl/region: Fix cxl_region leak, cleanup targets at region delete
When a region is deleted any targets that have been previously assigned
to that region hold references to it. Trigger those references to
drop by detaching all targets at unregister_region() time.
Otherwise that region object will leak as userspace has lost the ability
to detach targets once region sysfs is torn down.
Statement: A memory leak was fixed in the cxl_region subsystem where previously assigned endpoint decoders retained references to a deleted region object. Without explicit target detachment at the time of region removal, these references were never released, leading to
Debian
CVE-2022-49893: linux - In the Linux kernel, the following vulnerability has been resolved: cxl/region:...
vendor_debian·2022·CVSS 5.5
CVE-2022-49893 [MEDIUM] CVE-2022-49893: linux - In the Linux kernel, the following vulnerability has been resolved: cxl/region:...
In the Linux kernel, the following vulnerability has been resolved: cxl/region: Fix cxl_region leak, cleanup targets at region delete When a region is deleted any targets that have been previously assigned to that region hold references to it. Trigger those references to drop by detaching all targets at unregister_region() time. Otherwise that region object will leak as userspace has lost the ability to detach targets once region sysfs is torn down.
Scope: local
bookworm: resolved (fixed in 6.0.8-1)
bullseye: resolved
forky: resolved (fixed in 6.0.8-1)
sid: resolved (fixed in 6.0.8-1)
trixie: resolved (fixed in 6.0.8-1)
OSV
CVE-2022-49893: In the Linux kernel, the following vulnerability has been resolved: cxl/region: Fix cxl_region leak, cleanup targets at region delete When a region is
osv·2025-05-01·CVSS 5.5
CVE-2022-49893 [MEDIUM] CVE-2022-49893: In the Linux kernel, the following vulnerability has been resolved: cxl/region: Fix cxl_region leak, cleanup targets at region delete When a region is
In the Linux kernel, the following vulnerability has been resolved: cxl/region: Fix cxl_region leak, cleanup targets at region delete When a region is deleted any targets that have been previously assigned to that region hold references to it. Trigger those references to drop by detaching all targets at unregister_region() time. Otherwise that region object will leak as userspace has lost the ability to detach targets once region sysfs is torn down.
GHSA
GHSA-c2p4-prc5-v3mc: In the Linux kernel, the following vulnerability has been resolved:
cxl/region: Fix cxl_region leak, cleanup targets at region delete
When a region
ghsa_unreviewed·2025-05-01
CVE-2022-49893 [MEDIUM] CWE-401 GHSA-c2p4-prc5-v3mc: In the Linux kernel, the following vulnerability has been resolved:
cxl/region: Fix cxl_region leak, cleanup targets at region delete
When a region
In the Linux kernel, the following vulnerability has been resolved:
cxl/region: Fix cxl_region leak, cleanup targets at region delete
When a region is deleted any targets that have been previously assigned
to that region hold references to it. Trigger those references to
drop by detaching all targets at unregister_region() time.
Otherwise that region object will leak as userspace has lost the ability
to detach targets once region sysfs is torn down.
No detection rules found.
No public exploits indexed.
2025-05-01
Published