Kernel memory leak via incomplete allocation cleanup
Published Dec 24, 2025 · Updated Dec 24, 2025
Memory leaks in affected Linux kernel r8712 staging driver releases allow attackers to retain allocations after failed initialization. _r8712_init_xmit_priv() returns after later allocation failures without freeing earlier frame buffers, transmit buffers, and USB URBs; r8712_xmit_resource_alloc() also leaves URBs created earlier in its loop. Triggering the leak requires the r8712 driver and a partial allocation failure during device probing; public records establish neither attacker control nor a resulting crash.
Summary
What happened
Memory leaks in affected Linux kernel r8712 staging driver releases allow attackers to retain allocations after failed initialization. _r8712_init_xmit_priv() returns after later allocation failures without freeing earlier frame buffers, transmit buffers, and USB URBs; r8712_xmit_resource_alloc() also leaves URBs created earlier in its loop. Triggering the leak requires the r8712 driver and a partial allocation failure during device probing; public records establish neither attacker control nor a resulting crash.
The record
- CVE
- CVE-2023-54001
- Published
- Dec 24, 2025
- Updated
- Dec 24, 2025
- Vendor
- The Linux Kernel Organization
- Product
- Linux
- Classifications
- Unavailable
- Attack vector
- Unavailable
- Privileges
- Unavailable
Timeline
How it unfolded
- Dec 24, 2025CVE publishedPublication date reported by the CVE source.
- Dec 24, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=2.6.37
- Affected versionversion=2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef <41e05572e871b10dbdc168c76175c97982daf4a4
- Affected versionversion=2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef <874555472c736813ba1f4baf0b4c09c8e26d81ea
- Affected versionversion=2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef <ac83631230f77dda94154ed0ebfd368fc81c70a3
- Affected versionversion=2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef <acacdbe0f740ca8c5d5da73d50870903a3ded677
- Affected versionversion=2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef <fc511ae405f7ba29fbcb0246061ec15c272386e1
What conditions does exploitation require?
What is affected?
Published CVSS scores
No CVSS assessment is available in this record.
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
No sourced classifications are available.
Public exploit references
- syzbot reproducer for _r8712_init_xmit_priv memory leakproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
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