ima: Check for ERR_PTR from dentry_path() in validate_hash_algo()
In the Linux kernel, the following vulnerability has been resolved: ima: Check for ERR_PTR from dentry_path() in validate_hash_algo() dentry_path() returns ERR_PTR(-ENAMETOOLONG) when the path exceeds the buffer. validate_hash_algo() passes the result straight to integrity_audit_msg() without checking. ERR_PTR is not NULL, so integrity_audit_message() sees a valid pointer and calls strlen() on it, which faults: BUG: unable to handle page fault for address: ffffffffffffffdc RIP: 0010:strlen+0x30/0xa0 Call Trace: audit_log_untrustedstring+0x19/0x30 integrity_audit_message+0x366/0x4f0 ima_inode_setxattr+0x512/0x5f0 Check for IS_ERR() and use NULL instead, which makes the audit message skip the name= field instead of crashing.
- Published
- Sep 16, 2026
- Updated
- Sep 16, 2026
- EPSS
- 0.2% · 10th percentile
- CWE
- —
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Report tools
Action score
0
Monitor
Low priority for now.
- CVSS
- 0 / 40 · —
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.2%
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
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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
- 4f2946aa0c45c78b4f4ef101bab9694e38c68db0 and later · before d6fade89903c8fd0af6c956242aec8b927040e02affected · git
- 4f2946aa0c45c78b4f4ef101bab9694e38c68db0 and later · before 0de5b525c0cd7d202848b8adfde3c01c287fb1a6affected · git
- 4f2946aa0c45c78b4f4ef101bab9694e38c68db0 and later · before 30b5c0e17dcad72b6b2f987319aa645570e6376daffected · git
- 4f2946aa0c45c78b4f4ef101bab9694e38c68db0 and later · before 9e69d683ebd7def04557fe758ff123105d7d9840affected · git
- 4f2946aa0c45c78b4f4ef101bab9694e38c68db0 and later · before f8a2f2a4602318eb93d49d27fd0d0fdaab17eddeaffected · git
- 4f2946aa0c45c78b4f4ef101bab9694e38c68db0 and later · before d62a84a78de5f29c642fa3bd4eee072ba7289cb4affected · git
- 4f2946aa0c45c78b4f4ef101bab9694e38c68db0 and later · before 8861f6d5c0678a7c5089c7b272509fc5931b8437affected · git
- before 5.15not affected · semver
- 5.15.221 and later · up to and including 5.15.*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 | all versions | — |
| Debian:12 | linux-6.12 | before 6.12.111-1~deb12u1 | 6.12.111-1~deb12u1 |
| Debian:13 | linux | before 6.12.111-1 | 6.12.111-1 |
| Debian:14 | linux | before 7.2.6-1 | 7.2.6-1 |
Same product
linux: all recordsOther highest-scoring records for the same primary product.
- CVE-2026-74705udp: fix potential use-after-free in tunnel segmentation40Plan
- CVE-2026-74612veth: fix skb length accounting after XDP frag adjustment40Plan
- CVE-2026-74475vxlan: use neigh_ha_snapshot() in route_shortcircuit()40Plan
- CVE-2026-74309vdpa/octeon_ep: fix IRQ-to-ring mapping in interrupt handler40Plan
- CVE-2026-74280crypto: marvell/octeontx - fix DMA cleanup using wrong loop index40Plan
- CVE-2026-74279crypto: cavium/cpt - fix DMA cleanup using wrong loop index40Plan
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 | 0de5b525c0cd7d202848b8adfde3c01c287fb1a6 | Vendor (CNA) |
| Linux Linux | 30b5c0e17dcad72b6b2f987319aa645570e6376d | Vendor (CNA) |
| Linux Linux | 8861f6d5c0678a7c5089c7b272509fc5931b8437 | Vendor (CNA) |
| Linux Linux | 9e69d683ebd7def04557fe758ff123105d7d9840 | Vendor (CNA) |
| Linux Linux | d62a84a78de5f29c642fa3bd4eee072ba7289cb4 | Vendor (CNA) |
| Linux Linux | d6fade89903c8fd0af6c956242aec8b927040e02 | Vendor (CNA) |
| Linux Linux | f8a2f2a4602318eb93d49d27fd0d0fdaab17edde | Vendor (CNA) |
| azl3 kernel 6.6.150.1-1 on Azure Linux 3.0 | — | Microsoft (MSRC) |
| azl3 kernel 6.6.152.1-1 on Azure Linux 3.0 | 6.6.157.1-1 · Release Notes | Microsoft (MSRC) |
| debian:linux | 6.12.111-1 · Debian:13 | Package registry (OSV) |
| debian:linux-6.12 | 6.12.111-1~deb12u1 · 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.
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-26-1114 · Sep 17, 2026(Linux Kernel Güvenlik Bildirimi)
Technical details
No CVSS vector for this record, so attack conditions can't be derived.
Weakness class (CWE)
—
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/0de5b525c0cd7d202848b8adfde3c01c287fb1a6
- git.kernel.org/stable/c/30b5c0e17dcad72b6b2f987319aa645570e6376d
- git.kernel.org/stable/c/8861f6d5c0678a7c5089c7b272509fc5931b8437
- git.kernel.org/stable/c/9e69d683ebd7def04557fe758ff123105d7d9840
- git.kernel.org/stable/c/d62a84a78de5f29c642fa3bd4eee072ba7289cb4
- git.kernel.org/stable/c/d6fade89903c8fd0af6c956242aec8b927040e02
- git.kernel.org/stable/c/f8a2f2a4602318eb93d49d27fd0d0fdaab17edde
Vendor advisories and official records. Exploit/PoC links are deliberately left out.