Service interruption via unreleased encoder firmware buffer
Published May 1, 2024 · Updated May 11, 2026
Memory leak in the Linux kernel go7007 driver allows local users to exhaust kernel memory through encoder initialization. The go7007_load_encoder function stores an allocated bounce buffer in go->boot_fw, but the saa7134_go7007_init failure path frees go without releasing that buffer. Low-privilege local access and initialization of an affected go7007 encoder are required; repeated invocations can interrupt service as unreclaimed kernel memory accumulates.
Summary
What happened
Memory leak in the Linux kernel go7007 driver allows local users to exhaust kernel memory through encoder initialization. The go7007_load_encoder function stores an allocated bounce buffer in go->boot_fw, but the saa7134_go7007_init failure path frees go without releasing that buffer. Low-privilege local access and initialization of an affected go7007 encoder are required; repeated invocations can interrupt service as unreclaimed kernel memory accumulates.
The record
- CVE
- CVE-2024-27074
- Published
- May 1, 2024
- Updated
- May 11, 2026
- Vendor
- The Linux Kernel Organization
- Product
- Linux
- Classifications
- CWE-401, T1499.004
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- May 1, 2024CVE publishedPublication date reported by the CVE source.
- May 11, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=3.10
- Affected versionversion=95ef39403f890360a3e48fe550d8e8e5d088ad74 <291cda0b805fc0d6e90d201710311630c8667159
- Affected versionversion=95ef39403f890360a3e48fe550d8e8e5d088ad74 <7405a0d4442792988e9ae834e7d84f9d163731a4
- Affected versionversion=95ef39403f890360a3e48fe550d8e8e5d088ad74 <790fa2c04dfb9f095ec372bf17909424d6e864b3
- Affected versionversion=95ef39403f890360a3e48fe550d8e8e5d088ad74 <7f11dd3d165b178e738fe73dfeea513e383bedb5
- Affected versionversion=95ef39403f890360a3e48fe550d8e8e5d088ad74 <b49fe84c6cefcc1c2336d793b53442e716c95073
- Affected versionversion=95ef39403f890360a3e48fe550d8e8e5d088ad74 <b9b683844b01d171a72b9c0419a2d760d946ee12
- Affected versionversion=95ef39403f890360a3e48fe550d8e8e5d088ad74 <d43988a23c32588ccd0c74219637afb96cd78661
- Affected versionversion=95ef39403f890360a3e48fe550d8e8e5d088ad74 <e04d15c8bb3e111dd69f98894acd92d63e87aac3
- Affected versionversion=95ef39403f890360a3e48fe550d8e8e5d088ad74 <f31c1cc37411f5f7bcb266133f9a7e1b4bdf2975
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
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Weakness, pattern, technique
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