Memory disclosure or crash via stale IE length
Published Jun 25, 2026 · Updated Jun 25, 2026
Out-of-bounds read in the rtl8723bs driver in Linux Kernel allows local users to disclose kernel memory or crash the system during network updates. In rtw_mlme.c, callers offset the ies pointer past the fixed information-element header but pass the original ie_length to rtw_update_protection(), so parsing continues beyond the remaining buffer. The rtl8723bs driver must be present and exercised locally; the bounded effects are kernel-memory disclosure and a system crash.
Summary
What happened
Out-of-bounds read in the rtl8723bs driver in Linux Kernel allows local users to disclose kernel memory or crash the system during network updates. In rtw_mlme.c, callers offset the ies pointer past the fixed information-element header but pass the original ie_length to rtw_update_protection(), so parsing continues beyond the remaining buffer. The rtl8723bs driver must be present and exercised locally; the bounded effects are kernel-memory disclosure and a system crash.
The record
- CVE
- CVE-2026-53179
- Published
- Jun 25, 2026
- Updated
- Jun 25, 2026
- Vendor
- The Linux Kernel Organization
- Product
- Linux Kernel
- Classifications
- CWE-125, T1499.004
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Jun 25, 2026CVE publishedPublication date reported by the CVE source.
- Jun 25, 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?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=5.15
- Affected versionversion=d3fcee1b78a533c256077f1300dd236801397cf7 <303f65af819f6d5aa302e82bce72b57a8575faea
- Affected versionversion=d3fcee1b78a533c256077f1300dd236801397cf7 <514ab98364595007d4557ecc85d7e5f012c504d3
- Affected versionversion=d3fcee1b78a533c256077f1300dd236801397cf7 <735dabdf21561a24d8bcae456c9c32f7f961a029
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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