PCI: endpoint: Fix NULL pointer dereference for ->get_features()
In the Linux kernel, the following vulnerability has been resolved: PCI: endpoint: Fix NULL pointer dereference for ->get_features() get_features ops of pci_epc_ops may return NULL, causing NULL pointer dereference in pci_epf_test_alloc_space function. Let us add a check for pci_epc_feature pointer in pci_epf_test_bind before we access it to avoid any such NULL pointer dereference and return -ENOTSUPP in case pci_epc_feature is not found. When the patch is not applied and EPC features is not implemented in the platform driver, we see the following dump due to kernel NULL pointer dereference. Call trace: pci_epf_test_bind+0xf4/0x388 pci_epf_bind+0x3c/0x80 pci_epc_epf_link+0xa8/0xcc configfs_symlink+0x1a4/0x48c vfs_symlink+0x104/0x184 do_symlinkat+0x80/0xd4 __arm64_sys_symlinkat+0x1c/0x24 el0_svc_common.constprop.3+0xb8/0x170 el0_svc_handler+0x70/0x88 el0_svc+0x8/0x640 Code: d2800581 b9403ab9 f9404ebb 8b394f60 (f9400400) ---[ end trace a438e3c5a24f9df0 ]---
- Published
- Feb 28, 2024
- Updated
- Jun 17, 2026
- EPSS
- 0.2% · 13th percentile
- CWE
- CWE-476
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Report tools
Action score
22
Monitor
Low priority for now.
- CVSS
- 22 / 40 · 5.5 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.2%
CISA SSVC decision
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
Vulnrichment: CISA's decision-tree inputs.
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for the hundreds of thousands of vulnerabilities in the database; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpAffected systems
| Vendor | Product | CPE |
|---|---|---|
| linux | linux kernel | cpe:2.3:o:linux:linux_kernel |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- linux linux kernel5.1 and later · before 5.10.38
- linux linux kernel5.11 and later · before 5.11.22
- linux linux kernel5.12 and later · before 5.12.5
Versions reported by the vendor
Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.
Linux Linux
- 5.1affected
- 2c04c5b8eef797dca99699cfb55ff42dd3c12c23 and later · before bbed83d7060e07a5d309104d25a00f0a24441428affected · git
- 2c04c5b8eef797dca99699cfb55ff42dd3c12c23 and later · before 679ebad058b8168f10e63876d63b0877fd2fe784affected · git
- 2c04c5b8eef797dca99699cfb55ff42dd3c12c23 and later · before 0169d4f0bee44fdfef908c13ed21fcb326c38695affected · git
- 2c04c5b8eef797dca99699cfb55ff42dd3c12c23 and later · before 6613bc2301ba291a1c5a90e1dc24cf3edf223c03affected · git
- before 5.1not affected · semver
- 5.10.38 and later · up to and including 5.10.*not affected · semver
- 5.11.22 and later · up to and including 5.11.*not affected · semver
- 5.12.5 and later · up to and including 5.12.*not affected · semver
- 5.13 and laternot affected · original_commit_for_fix
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Debian:12 | linux | before 5.10.38-1 | 5.10.38-1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP2-LTSS | kernel-default-base | before 5.3.18-150200.24.183.1.150200.9.93.2 | 5.3.18-150200.24.183.1.150200.9.93.2 |
| SUSE:Linux Enterprise High Performance Computing 15 SP2-LTSS | kernel-docs | before 5.3.18-150200.24.183.1 | 5.3.18-150200.24.183.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP2-LTSS | kernel-obs-build | before 5.3.18-150200.24.183.1 | 5.3.18-150200.24.183.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP2-LTSS | kernel-preempt | before 5.3.18-150200.24.183.1 | 5.3.18-150200.24.183.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP2-LTSS | kernel-source | before 5.3.18-150200.24.183.1 | 5.3.18-150200.24.183.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP2-LTSS | kernel-syms | before 5.3.18-150200.24.183.1 | 5.3.18-150200.24.183.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | kernel-64kb | before 5.3.18-150300.59.153.2 | 5.3.18-150300.59.153.2 |
| SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | kernel-default-base | before 5.3.18-150300.59.153.2.150300.18.90.2 | 5.3.18-150300.59.153.2.150300.18.90.2 |
| SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | kernel-docs | before 5.3.18-150300.59.153.2 | 5.3.18-150300.59.153.2 |
| SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | kernel-obs-build | before 5.3.18-150300.59.153.2 | 5.3.18-150300.59.153.2 |
| SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | kernel-preempt | before 5.3.18-150300.59.153.2 | 5.3.18-150300.59.153.2 |
| SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | kernel-source | before 5.3.18-150300.59.153.2 | 5.3.18-150300.59.153.2 |
| SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | kernel-syms | before 5.3.18-150300.59.153.1 | 5.3.18-150300.59.153.1 |
| SUSE:Linux Enterprise Live Patching 15 SP2 | kernel-default | before 5.3.18-150200.24.183.1 | 5.3.18-150200.24.183.1 |
| SUSE:Linux Enterprise Live Patching 15 SP2 | kernel-livepatch-SLE15-SP2_Update_46 | before 1-150200.5.3.2 | 1-150200.5.3.2 |
| SUSE:Linux Enterprise Live Patching 15 SP3 | kernel-default | before 5.3.18-150300.59.153.2 | 5.3.18-150300.59.153.2 |
| SUSE:Linux Enterprise Live Patching 15 SP3 | kernel-livepatch-SLE15-SP3_Update_42 | before 1-150300.7.3.2 | 1-150300.7.3.2 |
| SUSE:Linux Enterprise Micro 5.1 | kernel-rt | before 5.3.18-150300.161.1 | 5.3.18-150300.161.1 |
| SUSE:Linux Enterprise Micro 5.1 | kernel-source-rt | before 5.3.18-150300.161.1 | 5.3.18-150300.161.1 |
| SUSE:Linux Enterprise Server 15 SP3-LTSS | kernel-zfcpdump | before 5.3.18-150300.59.153.2 | 5.3.18-150300.59.153.2 |
Same product
linux: all recordsOther highest-scoring records for the same primary product.
- CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe KEV89Now
- CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV85Now
- CVE-2016-5195Race condition in mm/gup.c in the Linux kernel 2.x through 4.x before 4.8.3 allows local users to gain privileges by leveraging incorrect haKEV83Now
- CVE-2019-13272In the Linux kernel before 5.1.17, ptrace_link in kernel/ptrace.c mishandles the recording of the credentials of a process that wants to creKEV77This week
- CVE-2013-6282The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the v6k and v7 ARM platforms do not validate certain addKEV77This week
- CVE-2013-2094The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9 uses an incorrect integer data type, which allows loKEV77This week
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| Linux Linux | 0169d4f0bee44fdfef908c13ed21fcb326c38695 | Vendor (CNA) |
| Linux Linux | 6613bc2301ba291a1c5a90e1dc24cf3edf223c03 | Vendor (CNA) |
| Linux Linux | 679ebad058b8168f10e63876d63b0877fd2fe784 | Vendor (CNA) |
| Linux Linux | bbed83d7060e07a5d309104d25a00f0a24441428 | Vendor (CNA) |
| debian:linux | 5.10.38-1 · Debian:12 | Package registry (OSV) |
| suse:kernel-64kb | 5.3.18-150300.59.153.2 · SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | Package registry (OSV) |
| suse:kernel-default | 5.3.18-150300.59.153.2 · SUSE:Linux Enterprise Live Patching 15 SP3 | Package registry (OSV) |
| suse:kernel-default-base | 5.3.18-150300.59.153.2.150300.18.90.2 · SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | Package registry (OSV) |
| suse:kernel-docs | 5.3.18-150300.59.153.2 · SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | Package registry (OSV) |
| suse:kernel-livepatch-SLE15-SP3_Update_42 | 1-150300.7.3.2 · SUSE:Linux Enterprise Live Patching 15 SP3 | Package registry (OSV) |
| suse:kernel-obs-build | 5.3.18-150300.59.153.2 · SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | Package registry (OSV) |
| suse:kernel-preempt | 5.3.18-150300.59.153.2 · SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | Package registry (OSV) |
| suse:kernel-rt | 5.3.18-150300.161.1 · SUSE:Linux Enterprise Micro 5.1 | Package registry (OSV) |
| suse:kernel-source | 5.3.18-150300.59.153.2 · SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | Package registry (OSV) |
| suse:kernel-source-rt | 5.3.18-150300.161.1 · SUSE:Linux Enterprise Micro 5.1 | Package registry (OSV) |
| suse:kernel-syms | 5.3.18-150300.59.153.1 · SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | Package registry (OSV) |
| suse:kernel-zfcpdump | 5.3.18-150300.59.153.2 · SUSE:Linux Enterprise Server 15 SP3-LTSS | Package registry (OSV) |
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
National notice (Türkiye Cybersecurity Directorate / USOM)
Official security notices citing this record; remediation advice is on the agency's page.
- TR-24-0145 · Feb 29, 2024(Linux Kernel Güncellemesi)
Technical details
Attack conditions
- Someone with local access to the system can trigger it.
- A low-privileged account is enough.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- none
- Integrity
- none
- Availability
- high · the service can be disrupted
- Attack vector
- Local
- Attack complexity
- Low
- Privileges required
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- None
- Integrity impact
- None
- Availability impact
- High
Weakness class (CWE)
CWE-476 · NULL Pointer DereferenceCVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
MITRE has no CAPEC/ATT&CK mapping for this CWE.
Change log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
- git.kernel.org/stable/c/0169d4f0bee44fdfef908c13ed21fcb326c38695
- git.kernel.org/stable/c/6613bc2301ba291a1c5a90e1dc24cf3edf223c03
- git.kernel.org/stable/c/679ebad058b8168f10e63876d63b0877fd2fe784
- git.kernel.org/stable/c/bbed83d7060e07a5d309104d25a00f0a24441428
Vendor advisories and official records. Exploit/PoC links are deliberately left out.