CVE-2025-71274: rpmsg: core: fix race in driver_override_show() and use core helper
Noroxi assessment
Priority: Monitor (action score 18/100)
- The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
- Probability of exploitation in the next 30 days: 0.10% (FIRST EPSS).
- Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. Special conditions such as timing or configuration are required.
- Fixed version: Linux Linux 2e4a70f3c30910427e5ea848b799066d67b963d5, 392c6b68334aa0e0ae9aba95c0a366bcb0d92f5d, 42023d4b6d2661a40ee2dcf7e1a3528a35c638ca.
- Severity is disputed: the assigning authority (CNA) scores it 7.8, NVD 4.7.
- Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).
Low priority for now. Upgrade to Linux Linux 2e4a70f3c30910427e5ea848b799066d67b963d5, 392c6b68334aa0e0ae9aba95c0a366bcb0d92f5d, 42023d4b6d2661a40ee2dcf7e1a3528a35c638ca or later.
Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it
Primary sources: NVD · CVE.org · FIRST EPSS
In the Linux kernel, the following vulnerability has been resolved: rpmsg: core: fix race in driver_override_show() and use core helper The driver_override_show function reads the driver_override string without holding the device_lock. However, the store function modifies and frees the string while holding the device_lock. This creates a race condition where the string can be freed by the store function while being read by the show function, leading to a use-after-free. To fix this, replace the rpmsg_string_attr macro with explicit show and store functions. The new driver_override_store uses the standard driver_set_override helper. Since the introduction of driver_set_override, the comments in include/linux/rpmsg.h have stated that this helper must be used to set or clear driver_override, but the implementation was not updated until now. Because driver_set_override modifies and frees the string while holding the device_lock, the new driver_override_show now correctly holds the device_lock during the read operation to prevent the race. Additionally, since rpmsg_string_attr has only ever been used for driver_override, removing the macro simplifies the code.
- Published
- May 6, 2026
- Updated
- Oct 19, 2026
- EPSS
- 0.1% · 0th percentile
- CWE
- CWE-362
Report tools
Action score
18
Monitor
Low priority for now.
- CVSS
- 18 / 40 · 4.7 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.1%
CISA SSVC decision
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
Vulnrichment: CISA's decision-tree inputs.
CNA vs NVD score
- NVD
- 4.7
- CNA · Linux
- 7.8
- 3.1 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.
Get told when this record changes
- Not in KEV: no record of exploitation in the wild
- No public exploit code on record
- A fix has been released
If any of these changes, we'll tell you in the daily email digest.
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Noroxi analysis
What does it mean in your environment?
The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.
We use this product, ask for helpAffected systems
Is your version affected?
Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.
| 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 kernel4.18 and later · before 5.10.252
- linux linux kernel5.11 and later · before 5.15.202
- linux linux kernel5.16 and later · before 6.1.165
- linux linux kernel6.2 and later · before 6.6.128
- linux linux kernel6.7 and later · before 6.12.75
- linux linux kernel6.13 and later · before 6.18.16
- linux linux kernel6.19 and later · before 6.19.6
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
- 4.18affected
- 39e47767ec9b22f844c2a07c9d329256960d4021 and later · before 392c6b68334aa0e0ae9aba95c0a366bcb0d92f5daffected · git
- 39e47767ec9b22f844c2a07c9d329256960d4021 and later · before d66b8074c555e8abb0ae19eea1c9f3635498bddeaffected · git
- 39e47767ec9b22f844c2a07c9d329256960d4021 and later · before 47615557447185917afa432b7958f87583c417cbaffected · git
- 39e47767ec9b22f844c2a07c9d329256960d4021 and later · before 90c8353f471821d7ccd4fe573a2402e056192494affected · git
- 39e47767ec9b22f844c2a07c9d329256960d4021 and later · before 7654e6e3cd6bdee9602f6063b3c670bd556d7e61affected · git
- 39e47767ec9b22f844c2a07c9d329256960d4021 and later · before 2e4a70f3c30910427e5ea848b799066d67b963d5affected · git
- 39e47767ec9b22f844c2a07c9d329256960d4021 and later · before 954557957177c3c13d7c655976665b1170da5e50affected · git
- 39e47767ec9b22f844c2a07c9d329256960d4021 and later · before 42023d4b6d2661a40ee2dcf7e1a3528a35c638caaffected · git
- before 4.18not 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 6.1.170-1 | 6.1.170-1 |
| Debian:13 | linux | before 6.12.85-1 | 6.12.85-1 |
| Debian:14 | linux | before 6.19.6-1 | 6.19.6-1 |
| openSUSE:Leap 16.0 | dtb-aarch64 | before 6.12.0-160000.37.1 | 6.12.0-160000.37.1 |
| openSUSE:Leap 16.0 | kernel-64kb | before 6.12.0-160000.37.1 | 6.12.0-160000.37.1 |
| openSUSE:Leap 16.0 | kernel-azure | before 6.12.0-160000.37.1 | 6.12.0-160000.37.1 |
| openSUSE:Leap 16.0 | kernel-default | before 6.12.0-160000.37.1 | 6.12.0-160000.37.1 |
| openSUSE:Leap 16.0 | kernel-default-base | before 6.12.0-160000.37.1.160000.2.19 | 6.12.0-160000.37.1.160000.2.19 |
| openSUSE:Leap 16.0 | kernel-docs | before 6.12.0-160000.37.1 | 6.12.0-160000.37.1 |
| openSUSE:Leap 16.0 | kernel-kvmsmall | before 6.12.0-160000.37.1 | 6.12.0-160000.37.1 |
| openSUSE:Leap 16.0 | kernel-obs-build | before 6.12.0-160000.37.1 | 6.12.0-160000.37.1 |
| openSUSE:Leap 16.0 | kernel-obs-qa | before 6.12.0-160000.37.1 | 6.12.0-160000.37.1 |
| openSUSE:Leap 16.0 | kernel-rt | before 6.12.0-160000.37.1 | 6.12.0-160000.37.1 |
| openSUSE:Leap 16.0 | kernel-source | before 6.12.0-160000.37.1 | 6.12.0-160000.37.1 |
| openSUSE:Leap 16.0 | kernel-syms | before 6.12.0-160000.37.1 | 6.12.0-160000.37.1 |
| openSUSE:Leap 16.0 | kernel-zfcpdump | before 6.12.0-160000.37.1 | 6.12.0-160000.37.1 |
| SUSE:Linux Enterprise Live Patching 15 SP7 | kernel-livepatch-SLE15-SP7_Update_19 | before 1-150700.15.3.4 | 1-150700.15.3.4 |
| SUSE:Linux Enterprise Live Patching 15 SP7 | kernel-livepatch-SLE15-SP7-RT_Update_18 | before 1-150700.1.5.1 | 1-150700.1.5.1 |
| SUSE:Linux Enterprise Module for Basesystem 15 SP7 | kernel-64kb | before 6.4.0-150700.53.73.2 | 6.4.0-150700.53.73.2 |
| SUSE:Linux Enterprise Module for Basesystem 15 SP7 | kernel-default | before 6.4.0-150700.53.73.2 | 6.4.0-150700.53.73.2 |
| SUSE:Linux Enterprise Module for Basesystem 15 SP7 | kernel-default-base | before 6.4.0-150700.53.73.2.150700.17.41.4 | 6.4.0-150700.53.73.2.150700.17.41.4 |
| SUSE:Linux Enterprise Module for Basesystem 15 SP7 | kernel-source | before 6.4.0-150700.53.73.1 | 6.4.0-150700.53.73.1 |
| SUSE:Linux Enterprise Module for Basesystem 15 SP7 | kernel-zfcpdump | before 6.4.0-150700.53.73.2 | 6.4.0-150700.53.73.2 |
| SUSE:Linux Enterprise Module for Development Tools 15 SP7 | kernel-docs | before 6.4.0-150700.53.73.1 | 6.4.0-150700.53.73.1 |
+23
Same product
linux: all recordsOther highest-scoring records for the same primary product.
- CVE-2026-31431crypto: algif_aead - Revert to operating out-of-placeKEV90Now
- 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
Published before and after this one in the same product
- ← EarlierCVE-2025-71272May 6, 2026 · most: core: fix resource leak in most_register_interface error paths22Monitor
- ← EarlierCVE-2025-71273May 6, 2026 · wifi: rtw88: Use devm_kmemdup() in rtw_set_supported_band()22Monitor
- Later →CVE-2025-71285May 6, 2026 · net: qrtr: Drop the MHI auto_queue feature for IPCR DL channels22Monitor
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 | 2e4a70f3c30910427e5ea848b799066d67b963d5 | Vendor (CNA) |
| Linux Linux | 392c6b68334aa0e0ae9aba95c0a366bcb0d92f5d | Vendor (CNA) |
| Linux Linux | 42023d4b6d2661a40ee2dcf7e1a3528a35c638ca | Vendor (CNA) |
| Linux Linux | 47615557447185917afa432b7958f87583c417cb | Vendor (CNA) |
| Linux Linux | 7654e6e3cd6bdee9602f6063b3c670bd556d7e61 | Vendor (CNA) |
| Linux Linux | 90c8353f471821d7ccd4fe573a2402e056192494 | Vendor (CNA) |
| Linux Linux | 954557957177c3c13d7c655976665b1170da5e50 | Vendor (CNA) |
| Linux Linux | d66b8074c555e8abb0ae19eea1c9f3635498bdde | Vendor (CNA) |
| debian:linux | 6.1.170-1 · Debian:12 | Package registry (OSV) |
| opensuse:dtb-aarch64 | 6.12.0-160000.37.1 · openSUSE:Leap 16.0 | Package registry (OSV) |
| opensuse:kernel-64kb | 6.12.0-160000.37.1 · openSUSE:Leap 16.0 | Package registry (OSV) |
| opensuse:kernel-azure | 6.12.0-160000.37.1 · openSUSE:Leap 16.0 | Package registry (OSV) |
| opensuse:kernel-default | 6.12.0-160000.37.1 · openSUSE:Leap 16.0 | Package registry (OSV) |
| opensuse:kernel-default-base | 6.12.0-160000.37.1.160000.2.19 · openSUSE:Leap 16.0 | Package registry (OSV) |
| opensuse:kernel-docs | 6.12.0-160000.37.1 · openSUSE:Leap 16.0 | Package registry (OSV) |
| opensuse:kernel-kvmsmall | 6.12.0-160000.37.1 · openSUSE:Leap 16.0 | Package registry (OSV) |
| opensuse:kernel-obs-build | 6.12.0-160000.37.1 · openSUSE:Leap 16.0 | Package registry (OSV) |
| opensuse:kernel-obs-qa | 6.12.0-160000.37.1 · openSUSE:Leap 16.0 | Package registry (OSV) |
| opensuse:kernel-rt | 6.12.0-160000.37.1 · openSUSE:Leap 16.0 | Package registry (OSV) |
| opensuse:kernel-source | 6.12.0-160000.37.1 · openSUSE:Leap 16.0 | Package registry (OSV) |
| opensuse:kernel-syms | 6.12.0-160000.37.1 · openSUSE:Leap 16.0 | Package registry (OSV) |
| suse:kernel-64kb | 6.12.0-160000.37.1 · SUSE:Linux Micro 6.2 | Package registry (OSV) |
| suse:kernel-azure | 6.12.0-160000.37.1 · SUSE:Linux Enterprise Server 16.0 | Package registry (OSV) |
| suse:kernel-default | 6.12.0-160000.37.1 · SUSE:Linux Micro 6.2 | Package registry (OSV) |
| suse:kernel-default-base | 6.12.0-160000.37.1.160000.2.19 · SUSE:Linux Micro 6.2 | Package registry (OSV) |
| suse:kernel-docs | 6.12.0-160000.37.1 · SUSE:Linux Enterprise Server 16.0 | Package registry (OSV) |
| suse:kernel-kvmsmall | 6.4.0-51.1 · SUSE:Linux Micro 6.1 | Package registry (OSV) |
| suse:kernel-obs-build | 6.12.0-160000.37.1 · SUSE:Linux Micro Extras 6.2 | Package registry (OSV) |
| suse:kernel-obs-qa | 6.12.0-160000.37.1 · SUSE:Linux Enterprise Server 16.0 | Package registry (OSV) |
| suse:kernel-rt | 6.12.0-160000.37.1 · SUSE:Linux Micro 6.2 | Package registry (OSV) |
+3
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.
No history yet (it accumulates with the daily EPSS job).
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-26-0185 · May 7, 2026(Linux Kernel Güvenlik Bildirimi)
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.
- Special conditions such as timing or configuration are required.
If successful
- Confidentiality
- none
- Integrity
- none
- Availability
- high · the service can be disrupted
- Attack vector
- Local
- Attack complexity
- High
- Privileges required
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- None
- Integrity impact
- None
- Availability impact
- High
Weakness class (CWE)
CWE-362 · Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')CVSS vector
CVSS:3.1/AV:L/AC:H/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
- SSVC exploitation— → none
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
Show all references (7 more)Show less
- git.kernel.org/stable/c/392c6b68334aa0e0ae9aba95c0a366bcb0d92f5d
- git.kernel.org/stable/c/42023d4b6d2661a40ee2dcf7e1a3528a35c638ca
- git.kernel.org/stable/c/47615557447185917afa432b7958f87583c417cb
- git.kernel.org/stable/c/7654e6e3cd6bdee9602f6063b3c670bd556d7e61
- git.kernel.org/stable/c/90c8353f471821d7ccd4fe573a2402e056192494
- git.kernel.org/stable/c/954557957177c3c13d7c655976665b1170da5e50
- git.kernel.org/stable/c/d66b8074c555e8abb0ae19eea1c9f3635498bdde
Vendor advisories and official records. Exploit/PoC links are deliberately left out.