binfmt_flat: Fix integer overflow bug on 32 bit systems
In the Linux kernel, the following vulnerability has been resolved: binfmt_flat: Fix integer overflow bug on 32 bit systems Most of these sizes and counts are capped at 256MB so the math doesn't result in an integer overflow. The "relocs" count needs to be checked as well. Otherwise on 32bit systems the calculation of "full_data" could be wrong. full_data = data_len + relocs * sizeof(unsigned long);
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 help- Published
- Feb 26, 2025
- Updated
- Aug 5, 2026
- EPSS
- 0.3% · 17th percentile
- CWE
- CWE-190
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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 · 0.3%
CNA vs NVD score
- NVD
- 5.5
- CNA · Linux
- 7.8
- 2.3 point gap
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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 kernel4.8 and later · before 6.1.129
- linux linux kernel6.2 and later · before 6.6.78
- linux linux kernel6.7 and later · before 6.12.14
- linux linux kernel6.13 and later · before 6.13.3
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
- 4.8affected
- c995ee28d29d6f256c3a8a6c4e66469554374f25 and later · before 0b6be54d7386b7addbf9e5947366f94aad046938affected · git
- c995ee28d29d6f256c3a8a6c4e66469554374f25 and later · before 6fb98e0576ea155267e206286413dcb3a3d55c12affected · git
- c995ee28d29d6f256c3a8a6c4e66469554374f25 and later · before bc8ca18b8ef4648532c001bd6c8151143b569275affected · git
- c995ee28d29d6f256c3a8a6c4e66469554374f25 and later · before 95506c7f33452450346fbe2975c1359100f854caaffected · git
- c995ee28d29d6f256c3a8a6c4e66469554374f25 and later · before d17ca8f2dfcf423c439859995910a20e38b86f00affected · git
- c995ee28d29d6f256c3a8a6c4e66469554374f25 and later · before a009378af674b808efcca1e2e67916e79ce866b3affected · git
- c995ee28d29d6f256c3a8a6c4e66469554374f25 and later · before 8e8cd712bb06a507b26efd2a56155076aa454345affected · git
- c995ee28d29d6f256c3a8a6c4e66469554374f25 and later · before 55cf2f4b945f6a6416cc2524ba740b83cc9af25aaffected · git
- before 4.8not 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 6.1.129-1 | 6.1.129-1 |
| Debian:13 | linux | before 6.12.15-1 | 6.12.15-1 |
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 | 0b6be54d7386b7addbf9e5947366f94aad046938 | Vendor (CNA) |
| Linux Linux | 55cf2f4b945f6a6416cc2524ba740b83cc9af25a | Vendor (CNA) |
| Linux Linux | 6fb98e0576ea155267e206286413dcb3a3d55c12 | Vendor (CNA) |
| Linux Linux | 8e8cd712bb06a507b26efd2a56155076aa454345 | Vendor (CNA) |
| Linux Linux | 95506c7f33452450346fbe2975c1359100f854ca | Vendor (CNA) |
| Linux Linux | a009378af674b808efcca1e2e67916e79ce866b3 | Vendor (CNA) |
| Linux Linux | bc8ca18b8ef4648532c001bd6c8151143b569275 | Vendor (CNA) |
| Linux Linux | d17ca8f2dfcf423c439859995910a20e38b86f00 | Vendor (CNA) |
| debian:linux | 6.1.129-1 · 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-2026-31633422 days apartrxrpc: Fix integer overflow in rxgk_verify_response()39Monitor
- CVE-2026-31649422 days apartnet: stmmac: fix integer underflow in chain mode39Monitor
- CVE-2026-46039455 days apartrxgk: Fix potential integer overflow in length check39Monitor
- CVE-2026-46198456 days apartbatman-adv: fix integer overflow on buff_pos35Monitor
- CVE-2026-64313514 days apartcrypto: ecc - Fix carry overflow in vli multiplication35Monitor
- CVE-2022-49030128 days apartlibbpf: Handle size overflow for ringbuf mmap31Monitor
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
- 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-190 · Integer Overflow or WraparoundCVSS 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.
Attack patterns (CAPEC)
ATT&CK techniques
—
Change log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
- git.kernel.org/stable/c/0b6be54d7386b7addbf9e5947366f94aad046938
- git.kernel.org/stable/c/55cf2f4b945f6a6416cc2524ba740b83cc9af25a
- git.kernel.org/stable/c/6fb98e0576ea155267e206286413dcb3a3d55c12
- git.kernel.org/stable/c/8e8cd712bb06a507b26efd2a56155076aa454345
- git.kernel.org/stable/c/95506c7f33452450346fbe2975c1359100f854ca
- git.kernel.org/stable/c/a009378af674b808efcca1e2e67916e79ce866b3
- git.kernel.org/stable/c/bc8ca18b8ef4648532c001bd6c8151143b569275
- git.kernel.org/stable/c/d17ca8f2dfcf423c439859995910a20e38b86f00
- lists.debian.org/debian-lts-announce/2025/03/msg00028.html
- lists.debian.org/debian-lts-announce/2025/05/msg00030.html
Vendor advisories and official records. Exploit/PoC links are deliberately left out.