PCI: kirin: Fix buffer overflow in kirin_pcie_parse_port()
In the Linux kernel, the following vulnerability has been resolved: PCI: kirin: Fix buffer overflow in kirin_pcie_parse_port() Within kirin_pcie_parse_port(), the pcie->num_slots is compared to pcie->gpio_id_reset size (MAX_PCI_SLOTS) which is correct and would lead to an overflow. Thus, fix condition to pcie->num_slots + 1 >= MAX_PCI_SLOTS and move pcie->num_slots increment below the if-statement to avoid out-of-bounds array access. Found by Linux Verification Center (linuxtesting.org) with SVACE. [kwilczynski: commit log]
- Published
- Oct 21, 2024
- Updated
- Jun 17, 2026
- EPSS
- 0.2% · 13th percentile
- CWE
- CWE-120
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Report tools
Action score
31
Monitor
Low priority for now.
- CVSS
- 31 / 40 · 7.8 / 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.
Affected 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 kernel5.16 and later · before 6.1.113
- linux linux kernel6.2 and later · before 6.6.54
- linux linux kernel6.7 and later · before 6.10.13
- linux linux kernel6.11 and later · before 6.11.2
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
- 5.16affected
- b22dbbb24571c052364f476381dbac110bdca4d5 and later · before a5f795f9412854df28e66679c5e6b68b0b79c229affected · git
- b22dbbb24571c052364f476381dbac110bdca4d5 and later · before 95248d7497bcbfe7deed4805469c6ff6ddd7f9d1affected · git
- b22dbbb24571c052364f476381dbac110bdca4d5 and later · before 6dcc5b49d6607a741a14122bf3105f3ac50d259eaffected · git
- b22dbbb24571c052364f476381dbac110bdca4d5 and later · before aeb0335971806e15ac91e838ca471936c8e7efd5affected · git
- b22dbbb24571c052364f476381dbac110bdca4d5 and later · before c500a86693a126c9393e602741e348f80f1b0fc5affected · git
- before 5.16not affected · semver
- 6.1.113 and later · up to and including 6.1.*not affected · semver
- 6.6.54 and later · up to and including 6.6.*not affected · semver
- 6.10.13 and later · up to and including 6.10.*not affected · semver
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 6.1.115-1 | 6.1.115-1 |
| Debian:13 | linux | before 6.11.2-1 | 6.11.2-1 |
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 | 6dcc5b49d6607a741a14122bf3105f3ac50d259e | Vendor (CNA) |
| Linux Linux | 95248d7497bcbfe7deed4805469c6ff6ddd7f9d1 | Vendor (CNA) |
| Linux Linux | a5f795f9412854df28e66679c5e6b68b0b79c229 | Vendor (CNA) |
| Linux Linux | aeb0335971806e15ac91e838ca471936c8e7efd5 | Vendor (CNA) |
| Linux Linux | c500a86693a126c9393e602741e348f80f1b0fc5 | Vendor (CNA) |
| debian:linux | 6.1.115-1 · Debian:12 | 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.
- CVE-2023-44466388 days apartAn issue was discovered in net/ceph/messenger_v2.c in the Linux kernel before 6.4.5.49Plan
- CVE-2023-52735153 days apartbpf, sockmap: Don't let sock_map_{close,destroy,unhash} call itself36Monitor
- CVE-2024-26927176 days apartASoC: SOF: Add some bounds checking to firmware data33Monitor
- CVE-2022-489480 days apartusb: gadget: uvc: Prevent buffer overflow in setup handler31Monitor
- CVE-2022-490230 days apartwifi: cfg80211: fix buffer overflow in elem comparison31Monitor
- CVE-2024-499960 days apartcifs: Fix buffer overflow when parsing NFS reparse points31Monitor
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).
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
- high · data can be read
- Integrity
- high · data or configuration can be modified
- Availability
- high · the service can be disrupted
- Attack vector
- Local
- Attack complexity
- Low
- Privileges required
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
Weakness class (CWE)
CWE-120 · Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
nvd-primary
Root cause
When data is copied, the source length is not compared with the size of the destination buffer. Excess data overwrites adjacent memory.
The bug in code
The whole CWE-120 classA representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.
Vulnerable
char buf[256];memcpy(buf, pkt->data, pkt->len);Fixed
char buf[256];if (pkt->len > sizeof(buf)) { return -EINVAL;}memcpy(buf, pkt->data, pkt->len);Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Attack patterns (CAPEC)
- Buffer Overflow via Environment VariablesCAPEC-10likelihood: High · High
- Overflow BuffersCAPEC-100likelihood: High · Very High
- Client-side Injection-induced Buffer OverflowCAPEC-14likelihood: Medium · High
- Filter Failure through Buffer OverflowCAPEC-24likelihood: High · High
- MIME ConversionCAPEC-42likelihood: High · High
- Overflow Binary Resource FileCAPEC-44likelihood: High · Very High
- Buffer Overflow via Symbolic LinksCAPEC-45likelihood: High · High
- Overflow Variables and TagsCAPEC-46likelihood: High · High
ATT&CK techniques
—
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for all 385,000+ vulnerabilities; 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 helpChange log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
- git.kernel.org/stable/c/6dcc5b49d6607a741a14122bf3105f3ac50d259e
- git.kernel.org/stable/c/95248d7497bcbfe7deed4805469c6ff6ddd7f9d1
- git.kernel.org/stable/c/a5f795f9412854df28e66679c5e6b68b0b79c229
- git.kernel.org/stable/c/aeb0335971806e15ac91e838ca471936c8e7efd5
- git.kernel.org/stable/c/c500a86693a126c9393e602741e348f80f1b0fc5
- lists.debian.org/debian-lts-announce/2025/01/msg00001.html
Vendor advisories and official records. Exploit/PoC links are deliberately left out.