afs: Fix netns teardown to cancel the preallocation charger
In the Linux kernel, the following vulnerability has been resolved: afs: Fix netns teardown to cancel the preallocation charger Fix the teardown of an afs network namespace to make sure it cancels the work item that keeps the preallocated rxrpc call/conn/peer queue charged before incoming calls are disabled (i.e. listen 0). Also, if net->live is false because the afs netns is being deleted, make afs_charge_preallocation() skip charging and make afs_rx_new_call() avoid requeuing the charger. (This was found by AI review).
- Published
- Aug 15, 2026
- Updated
- Aug 17, 2026
- EPSS
- 0.8% · 54th percentile
- CWE
- —
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Report tools
Action score
39
Monitor
Low priority for now.
- CVSS
- 39 / 40 · 9.8 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.8%
CNA vs NVD score
- NVD
- —
- CNA · Linux
- 9.8
- NVD has not scored this yet; the score shown is the CNA’s.
The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.
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
- 4.9affected
- 00e907127e6f86d0f9b122d9b4347a8aa09a8b61 and later · before 63ccaf1bdf8be2330f47f9b5b233dd3fd04acbd9affected · git
- 00e907127e6f86d0f9b122d9b4347a8aa09a8b61 and later · before f5096e18b6b7fbd1c2a1942e275a51bcfdfb2ad1affected · git
- 00e907127e6f86d0f9b122d9b4347a8aa09a8b61 and later · before 59e8b7652f6cbfb62d377ead0ad553c1b4e39a7aaffected · git
- 00e907127e6f86d0f9b122d9b4347a8aa09a8b61 and later · before 85d5fb80fe4f0cc836b6df83f26de204fe102ff7affected · git
- 00e907127e6f86d0f9b122d9b4347a8aa09a8b61 and later · before a33975ff2b6ea47b8f29956403374b1cdd057539affected · git
- 00e907127e6f86d0f9b122d9b4347a8aa09a8b61 and later · before b83ecf80e28afb7b6595ba79932e77ca68a5a83daffected · git
- 00e907127e6f86d0f9b122d9b4347a8aa09a8b61 and later · before eec89c5f8e1adc1de4824042ef75f62aed804153affected · git
- 00e907127e6f86d0f9b122d9b4347a8aa09a8b61 and later · before 47694fbc9d24ab6bf210f91e8efe06a10a478064affected · git
- before 4.9not 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 6.1.180-1 | 6.1.180-1 |
| Debian:13 | linux | before 6.12.100-1 | 6.12.100-1 |
| Debian:14 | linux | before 7.1.5-1 | 7.1.5-1 |
Same product
linux: all recordsOther highest-scoring records for the same primary product.
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- 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 | 47694fbc9d24ab6bf210f91e8efe06a10a478064 | Vendor (CNA) |
| Linux Linux | 59e8b7652f6cbfb62d377ead0ad553c1b4e39a7a | Vendor (CNA) |
| Linux Linux | 63ccaf1bdf8be2330f47f9b5b233dd3fd04acbd9 | Vendor (CNA) |
| Linux Linux | 85d5fb80fe4f0cc836b6df83f26de204fe102ff7 | Vendor (CNA) |
| Linux Linux | a33975ff2b6ea47b8f29956403374b1cdd057539 | Vendor (CNA) |
| Linux Linux | b83ecf80e28afb7b6595ba79932e77ca68a5a83d | Vendor (CNA) |
| Linux Linux | eec89c5f8e1adc1de4824042ef75f62aed804153 | Vendor (CNA) |
| Linux Linux | f5096e18b6b7fbd1c2a1942e275a51bcfdfb2ad1 | Vendor (CNA) |
| debian:linux | 6.1.180-1 · 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.
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).
Technical details
Attack conditions
- Anyone who can reach it over the internet can trigger it.
- No account or password is required.
- 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
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
Weakness class (CWE)
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CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvd-secondary
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/47694fbc9d24ab6bf210f91e8efe06a10a478064
- git.kernel.org/stable/c/59e8b7652f6cbfb62d377ead0ad553c1b4e39a7a
- git.kernel.org/stable/c/63ccaf1bdf8be2330f47f9b5b233dd3fd04acbd9
- git.kernel.org/stable/c/85d5fb80fe4f0cc836b6df83f26de204fe102ff7
- git.kernel.org/stable/c/a33975ff2b6ea47b8f29956403374b1cdd057539
- git.kernel.org/stable/c/b83ecf80e28afb7b6595ba79932e77ca68a5a83d
- git.kernel.org/stable/c/eec89c5f8e1adc1de4824042ef75f62aed804153
- git.kernel.org/stable/c/f5096e18b6b7fbd1c2a1942e275a51bcfdfb2ad1
Vendor advisories and official records. Exploit/PoC links are deliberately left out.