misc: fastrpc: Fix dma_buf object leak in fastrpc_map_lookup
Key facts
- Attack vector
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- Privileges required
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- User interaction
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- Attack complexity
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- Impact type
- —
- Confidentiality · integrity · availability
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- Fix status
- Fixed
No CVSS vector from any source. Fix status from CNA.
Summary
In the Linux kernel, the following vulnerability has been resolved: misc: fastrpc: Fix dma_buf object leak in fastrpc_map_lookup In fastrpc_map_lookup, dma_buf_get is called to obtain a reference to the dma_buf for comparison purposes. However, this reference is never released when the function returns, leading to a dma_buf memory leak. Fix this by adding dma_buf_put before returning from the function, ensuring that the temporarily acquired reference is properly released regardless of whether a matching map is found. Rule: add
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Linux | Linux | 6.1.156 to before 6.1.158; 6.6.112 to before 6.6.115; 6.12.53 to before 6.12.56; 6.17.3 to before 6.17.6 | 6.1.158, 6.6.115, 6.12.56, 6.17.6 | Patch available | CNA |
- Linux VendorLinux Affected 6.1.156 to before 6.1.158; 6.6.112 to before 6.6.115; 6.12.53 to before 6.12.56; 6.17.3 to before 6.17.6 Fixed in 6.1.158, 6.6.115, 6.12.56, 6.17.6 Patch available CNA
Remediation
- Fix · CNA Linux (Linux) Fixed in 6.1.158, 6.6.115, 6.12.56, 6.17.6
Vendor assessments
Red Hat
Not affected: 5 products
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
Timeline
- 2026-10-02 Threatist record created from CVE-2025-68252
- 2026-10-03 Alias added: GHSA-2c92-jwmp-9jr9
References
Other 5
- https://git.kernel.org/stable/c/c2fef5ebb73f3dabae6fbc571d181914ed32c483
- https://git.kernel.org/stable/c/9a297a68c3ba4a7ecb31ed52f61bd6634abb79d3
- https://git.kernel.org/stable/c/e17b13387827adce7acb19ac0f07f9bcafe0ff4c
- https://git.kernel.org/stable/c/214e81a63a9aa0be42382ef0365ba5ed32c513ab
- https://git.kernel.org/stable/c/fff111bf45cbeeb659324316d68554e35d350092
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- TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
Sources
- CVE-2025-68252 · CVE Program
- CVE-2025-68252 · NVD
- FIRST EPSS
- GHSA-2c92-jwmp-9jr9 · GitHub Advisory Database · CC BY 4.0
- CVE-2025-68252 · Red Hat security data · CC BY 4.0
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