usb: vhci-hcd: Do not drop references before new references are gained
Published Aug 23, 2024
9.8
CRITICALCVSS 3.1
EPSS 0.65%
Description
At a few places the driver carries stale pointers to references that can still be used. Make sure that does not happen. This strictly speaking closes ZDI-CAN-22273, though there may be similar races in the driver.
Affected products
-
- Version StatusaffectedConstraints-
- Version StatusaffectedConstraints-
- Version StatusaffectedConstraints-
- Version StatusaffectedConstraints
- Version StatusaffectedConstraints
- Version StatusaffectedConstraints
- Version StatusaffectedConstraints
- Version StatusaffectedConstraints
- Version StatusaffectedConstraints
- Version StatusaffectedConstraints
- Version StatusaffectedConstraints
- Version StatusaffectedConstraints-
- Version StatusaffectedConstraints-
- Version
-
- Version 2.6.32.30StatusaffectedConstraints<2.6.33
- Version 2.6.33.8StatusaffectedConstraints<2.6.34
- Version 2.6.34.10StatusaffectedConstraints<2.6.35
- Version 2.6.35.12StatusaffectedConstraints<2.6.36
- Version 2.6.37.3StatusaffectedConstraints<2.6.38
- Version
-
- Version 2.6.38StatusaffectedConstraints-
- Version 0StatusunaffectedConstraints<2.6.38
- Version 4.19.320StatusunaffectedConstraints<=4.19.*
- Version 5.10.224StatusunaffectedConstraints<=5.10.*
- Version 5.15.165StatusunaffectedConstraints<=5.15.*
- Version 5.4.282StatusunaffectedConstraints<=5.4.*
- Version 6.1.105StatusunaffectedConstraints<=6.1.*
- Version 6.10.5StatusunaffectedConstraints<=6.10.*
- Version 6.11StatusunaffectedConstraints<=*
- Version 6.6.46StatusunaffectedConstraints<=6.6.*
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Linux | Linux | unaffected |
| ||||||||||||||||||||||||||||||||||||||||||
| Linux | Linux | unaffected |
| ||||||||||||||||||||||||||||||||||||||||||
| Linux | Linux | affected |
|
- < 4.19.320
- ≥ 4.20 · < 5.4.282
- ≥ 5.5 · < 5.10.224
- ≥ 5.11 · < 5.15.165
- ≥ 5.16 · < 6.1.105
- ≥ 6.2 · < 6.6.46
- ≥ 6.7 · < 6.10.5
- 6.11
- 6.11
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:H/PR:L/UI:N/S:U/C:H/I:H/A:H
2 other sources (CVE.org, Red Hat) ▾
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/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 Sep 10, 2024 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 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 1, 2026 | 0.65% (0.00650) | 49.26th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.22% (0.00223) | 12.67th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.09% (0.00087) | 22.78th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.04% (0.00044) | 15.00th | v3 (v2023.03.01) |
| Aug 24, 2024 | 0.04% (0.00044) | 13.72th | v3 (v2023.03.01) |
References (15)
- https://access.redhat.com/security/cve/CVE-2024-43883 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2307555 Issue Tracking
- https://git.kernel.org/stable/c/128e82e41cf7d74a562726c1587d9d2ede1a0a37 Patch
- https://git.kernel.org/stable/c/4dacdb9720aaab10b6be121eae55820174d97174 Patch
- https://git.kernel.org/stable/c/585e6bc7d0a9bf73a8be3d3fb34e86b90cc61a14 Patch
- https://git.kernel.org/stable/c/5a3c473b28ae1c1f7c4dc129e30cb19ae6e96f89 Patch
- https://git.kernel.org/stable/c/9c3746ce8d8fcb3a2405644fc0eec7fc5312de80 Patch
- https://git.kernel.org/stable/c/afdcfd3d6fcdeca2735ca8d994c5f2d24a368f0a Patch
- https://git.kernel.org/stable/c/c3d0857b7fc2c49f68f89128a5440176089a8f54 Patch
- https://git.kernel.org/stable/c/e8c1e606dab8c56cf074b43b98d0805de7322ba2 Patch
- https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
- https://lore.kernel.org/linux-cve-announce/2024082313-CVE-2024-43883-a594@gregkh/T
- https://nvd.nist.gov/vuln/detail/CVE-2024-43883
- https://www.cve.org/CVERecord?id=CVE-2024-43883
Change history (0)
No recorded changes yet.