sched/debug: fix dentry leak in update_sched_domain_debugfs
Published May 3, 2024
5.5
MEDIUMCVSS 3.1
EPSS 0.24%
Description
Kuyo reports that the pattern of using debugfs_remove(debugfs_lookup()) leaks a dentry and with a hotplug stress test, the machine eventually runs out of memory.
Fix this up by using the newly created debugfs_lookup_and_remove() call instead which properly handles the dentry reference counting logic.
Affected products
-
- Version StatusaffectedConstraints
- Version StatusaffectedConstraints
- Version StatusaffectedConstraints
- Version
-
- Version 5.13StatusaffectedConstraints-
- Version 0StatusunaffectedConstraints<5.13
- Version 5.15.68StatusunaffectedConstraints<=5.15.*
- Version 5.19.9StatusunaffectedConstraints<=5.19.*
- Version 6.0StatusunaffectedConstraints<=*
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
- ≥ 5.13 · < 5.15.68
- ≥ 5.16 · < 5.19.9
- 6.0
- 6.0
- 6.0
- 6.0
No data.
Red Hat Enterprise Linux 6
kernel
Not affected
Red Hat Enterprise Linux 7
kernel
Not affected
Red Hat Enterprise Linux 7
kernel-rt
Not affected
Red Hat Enterprise Linux 8
kernel
Not affected
Red Hat Enterprise Linux 8
kernel-rt
Not affected
Red Hat Enterprise Linux 9
kernel
Not affected
Red Hat Enterprise Linux 9
kernel-rt
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel-rt | Not affected | n/a |
| Red Hat Enterprise Linux 8 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 8 | kernel-rt | Not affected | n/a |
| Red Hat Enterprise Linux 9 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 9 | kernel-rt | Not affected | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
NoneAutomatable
NoTechnical Impact
PartialDecision
n/aAssessed May 28, 2024 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 4, 2026.
Score over time
2024-2026- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (5 key points)
Flat stretches are collapsed. Showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 4, 2026 | 0.24% (0.00237) | 13.40th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.24% (0.00237) | 14.49th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.15% (0.00148) | 32.71th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.04% (0.00045) | 17.70th | v3 (v2023.03.01) |
| May 4, 2024 | 0.04% (0.00045) | 14.37th | v3 (v2023.03.01) |
References (8)
- https://access.redhat.com/security/cve/CVE-2022-48699 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2278952 Issue Tracking
- https://git.kernel.org/stable/c/0c32a93963e03c03e561d5a066eedad211880ba3 Patch
- https://git.kernel.org/stable/c/26e9a1ded8923510e5529fbb28390b22228700c2 Patch
- https://git.kernel.org/stable/c/c2e406596571659451f4b95e37ddfd5a8ef1d0dc Patch
- https://lore.kernel.org/linux-cve-announce/2024050349-CVE-2022-48699-8b9b@gregkh/T
- https://nvd.nist.gov/vuln/detail/CVE-2022-48699
- https://www.cve.org/CVERecord?id=CVE-2022-48699
Change history (0)
No recorded changes yet.