pktgen: Avoid out-of-bounds access in get_imix_entries
In the Linux kernel, the following vulnerability has been resolved: pktgen: Avoid out-of-bounds access in get_imix_entries Passing a sufficient amount of imix entries leads to invalid access to the pkt_dev->imix_entries array because of the incorrect boundary check. UBSAN: array-index-out-of-bounds in net/core/pktgen.c:874:24 index 20 is out of range for type 'imix_pkt [20]' CPU: 2 PID: 1210 Comm: bash Not tainted 6.10.0-rc1 #121 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996) Call Trace: <TASK> dump_stack_lvl lib/dump_stack.c:117 __ubsan_handle_out_of_bounds lib/ubsan.c:429 get_imix_entries net/core/pktgen.c:874 pktgen_if_write net/core/pktgen.c:1063 pde_write fs/proc/inode.c:334 proc_reg_write fs/proc/inode.c:346 vfs_write fs/read_write.c:593 ksys_write fs/read_write.c:644 do_syscall_64 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe arch/x86/entry/entry_64.S:130 Found by Linux Verification Center (linuxtesting.org) with SVACE. [ fp: allow to fill the array completely; minor changelog cleanup ]
- BDU:2025-01464
- SUSE-SU-2025:01839-1
- SUSE-SU-2025:01840-1
- SUSE-SU-2025:01851-1
- SUSE-SU-2025:01853-1
- SUSE-SU-2025:01930-1
- SUSE-SU-2025:01932-1
- SUSE-SU-2025:01944-1
- SUSE-SU-2025:01948-1
- SUSE-SU-2025:01957-1
- SUSE-SU-2025:20381-1
- SUSE-SU-2025:20382-1
- SUSE-SU-2025:20383-1
- SUSE-SU-2025:20384-1
- SUSE-SU-2025:20386-1
- SUSE-SU-2025:20387-1
- SUSE-SU-2025:20388-1
- SUSE-SU-2025:20389-1
- SUSE-SU-2025:20397-1
- SUSE-SU-2025:20398-1
- Published
- Jan 31, 2025
- Updated
- Aug 5, 2026
- EPSS
- 0.2% · 12th percentile
- CWE
- CWE-129
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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
- total
Vulnrichment: CISA's decision-tree inputs.
CNA vs NVD score
- NVD
- 7.8
- CNA · Linux
- 7.8
- agree
The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.
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 kernel5.15 and later · before 5.15.177
- linux linux kernel5.16 and later · before 6.1.127
- linux linux kernel6.2 and later · before 6.6.74
- linux linux kernel6.7 and later · before 6.12.11
- linux linux kernel6.13
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
- 5.15affected
- 52a62f8603f97e720882c8f5aff2767ac6a11d5f and later · before 3450092cc2d1c311c5ea92a2486daa2a33520ea5affected · git
- 52a62f8603f97e720882c8f5aff2767ac6a11d5f and later · before e5d24a7074dcd0c7e76b7e7e4efbbe7418d62486affected · git
- 52a62f8603f97e720882c8f5aff2767ac6a11d5f and later · before 7cde21f52042aa2e29a654458166b873d2ae66b3affected · git
- 52a62f8603f97e720882c8f5aff2767ac6a11d5f and later · before 1a9b65c672ca9dc4ba52ca2fd54329db9580ce29affected · git
- 52a62f8603f97e720882c8f5aff2767ac6a11d5f and later · before 76201b5979768500bca362871db66d77cb4c225eaffected · git
- before 5.15not affected · semver
- 5.15.177 and later · up to and including 5.15.*not affected · semver
- 6.1.127 and later · up to and including 6.1.*not affected · semver
- 6.6.74 and later · up to and including 6.6.*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 6.1.128-1 | 6.1.128-1 |
| Debian:13 | linux | before 6.12.11-1 | 6.12.11-1 |
| SUSE:Linux Enterprise Live Patching 15 SP6 | kernel-livepatch-SLE15-SP6_Update_2 | before 15-150600.2.2 | 15-150600.2.2 |
| SUSE:Linux Enterprise Live Patching 15 SP6 | kernel-livepatch-SLE15-SP6_Update_4 | before 11-150600.2.2 | 11-150600.2.2 |
| SUSE:Linux Enterprise Live Patching 15 SP6 | kernel-livepatch-SLE15-SP6_Update_6 | before 6-150600.2.2 | 6-150600.2.2 |
| SUSE:Linux Enterprise Live Patching 15 SP6 | kernel-livepatch-SLE15-SP6_Update_7 | before 6-150600.2.2 | 6-150600.2.2 |
| SUSE:Linux Enterprise Live Patching 15 SP6 | kernel-livepatch-SLE15-SP6_Update_8 | before 2-150600.2.2 | 2-150600.2.2 |
| SUSE:Linux Enterprise Live Patching 15 SP6 | kernel-livepatch-SLE15-SP6-RT_Update_0 | before 16-150600.3.1 | 16-150600.3.1 |
| SUSE:Linux Enterprise Live Patching 15 SP6 | kernel-livepatch-SLE15-SP6-RT_Update_4 | before 10-150600.2.1 | 10-150600.2.1 |
| SUSE:Linux Enterprise Live Patching 15 SP6 | kernel-livepatch-SLE15-SP6-RT_Update_5 | before 9-150600.2.1 | 9-150600.2.1 |
| SUSE:Linux Enterprise Live Patching 15 SP6 | kernel-livepatch-SLE15-SP6-RT_Update_6 | before 6-150600.2.1 | 6-150600.2.1 |
| SUSE:Linux Micro 6.0 | kernel-livepatch-MICRO-6-0_Update_2 | before 6-1.1 | 6-1.1 |
| SUSE:Linux Micro 6.0 | kernel-livepatch-MICRO-6-0_Update_3 | before 6-1.2 | 6-1.2 |
| SUSE:Linux Micro 6.0 | kernel-livepatch-MICRO-6-0_Update_4 | before 4-1.2 | 4-1.2 |
| SUSE:Linux Micro 6.0 | kernel-livepatch-MICRO-6-0_Update_5 | before 3-1.2 | 3-1.2 |
| SUSE:Linux Micro 6.0 | kernel-livepatch-MICRO-6-0-RT_Update_2 | before 6-1.1 | 6-1.1 |
| SUSE:Linux Micro 6.0 | kernel-livepatch-MICRO-6-0-RT_Update_3 | before 6-1.2 | 6-1.2 |
| SUSE:Linux Micro 6.0 | kernel-livepatch-MICRO-6-0-RT_Update_4 | before 3-1.1 | 3-1.1 |
| SUSE:Linux Micro 6.0 | kernel-livepatch-MICRO-6-0-RT_Update_5 | before 3-1.1 | 3-1.1 |
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 | 1a9b65c672ca9dc4ba52ca2fd54329db9580ce29 | Vendor (CNA) |
| Linux Linux | 3450092cc2d1c311c5ea92a2486daa2a33520ea5 | Vendor (CNA) |
| Linux Linux | 76201b5979768500bca362871db66d77cb4c225e | Vendor (CNA) |
| Linux Linux | 7cde21f52042aa2e29a654458166b873d2ae66b3 | Vendor (CNA) |
| Linux Linux | e5d24a7074dcd0c7e76b7e7e4efbbe7418d62486 | Vendor (CNA) |
| debian:linux | 6.1.128-1 · Debian:12 | Package registry (OSV) |
| suse:kernel-livepatch-MICRO-6-0-RT_Update_2 | 6-1.1 · SUSE:Linux Micro 6.0 | Package registry (OSV) |
| suse:kernel-livepatch-MICRO-6-0-RT_Update_4 | 3-1.1 · SUSE:Linux Micro 6.0 | Package registry (OSV) |
| suse:kernel-livepatch-MICRO-6-0-RT_Update_5 | 3-1.1 · SUSE:Linux Micro 6.0 | Package registry (OSV) |
| suse:kernel-livepatch-SLE15-SP6_Update_2 | 15-150600.2.2 · SUSE:Linux Enterprise Live Patching 15 SP6 | Package registry (OSV) |
| suse:kernel-livepatch-SLE15-SP6_Update_4 | 11-150600.2.2 · SUSE:Linux Enterprise Live Patching 15 SP6 | Package registry (OSV) |
| suse:kernel-livepatch-SLE15-SP6_Update_6 | 6-150600.2.2 · SUSE:Linux Enterprise Live Patching 15 SP6 | Package registry (OSV) |
| suse:kernel-livepatch-SLE15-SP6_Update_7 | 6-150600.2.2 · SUSE:Linux Enterprise Live Patching 15 SP6 | Package registry (OSV) |
| suse:kernel-livepatch-SLE15-SP6_Update_8 | 2-150600.2.2 · SUSE:Linux Enterprise Live Patching 15 SP6 | Package registry (OSV) |
| suse:kernel-livepatch-SLE15-SP6-RT_Update_0 | 16-150600.3.1 · SUSE:Linux Enterprise Live Patching 15 SP6 | Package registry (OSV) |
| suse:kernel-livepatch-SLE15-SP6-RT_Update_4 | 10-150600.2.1 · SUSE:Linux Enterprise Live Patching 15 SP6 | Package registry (OSV) |
| suse:kernel-livepatch-SLE15-SP6-RT_Update_5 | 9-150600.2.1 · SUSE:Linux Enterprise Live Patching 15 SP6 | Package registry (OSV) |
| suse:kernel-livepatch-SLE15-SP6-RT_Update_6 | 6-150600.2.1 · SUSE:Linux Enterprise Live Patching 15 SP6 | 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-2021-47548252 days apartethernet: hisilicon: hns: hns_dsaf_misc: fix a possible array overflow in hns_dsaf_ge_srst_by_port()39Monitor
- CVE-2026-23246411 days apartwifi: mac80211: bounds-check link_id in ieee80211_ml_reconfiguration35Monitor
- CVE-2025-2169210 days apartnet: sched: fix ets qdisc OOB Indexing31Monitor
- CVE-2022-4947126 days apartrtw89: cfo: check mac_id to avoid out-of-bounds31Monitor
- CVE-2022-4947826 days apartmedia: pvrusb2: fix array-index-out-of-bounds in pvr2_i2c_core_init31Monitor
- CVE-2022-4954826 days apartbpf: Fix potential array overflow in bpf_trampoline_get_progs()31Monitor
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-129 · Improper Validation of Array IndexCVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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.
Attack patterns (CAPEC)
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/1a9b65c672ca9dc4ba52ca2fd54329db9580ce29
- git.kernel.org/stable/c/3450092cc2d1c311c5ea92a2486daa2a33520ea5
- git.kernel.org/stable/c/76201b5979768500bca362871db66d77cb4c225e
- git.kernel.org/stable/c/7cde21f52042aa2e29a654458166b873d2ae66b3
- git.kernel.org/stable/c/e5d24a7074dcd0c7e76b7e7e4efbbe7418d62486
- lists.debian.org/debian-lts-announce/2025/03/msg00001.html
Vendor advisories and official records. Exploit/PoC links are deliberately left out.