Kernel panic via contradictory asynchronous hash lookup
Published Jun 26, 2026 · Updated Jun 26, 2026
NULL pointer dereference in Linux Kernel 6.15 through 6.18.32 and 6.19 through 7.0.9 allows local users to trigger a kernel panic. The eip93_hmac_setkey() path requests a driver-specific asynchronous hash while masking out asynchronous algorithms, leaving the SA record partially initialized after the lookup fails. Local access and use of the EIP93 AEAD setkey path are required; a later crypto request reads ctx->flags through a NULL request context and halts the kernel.
Summary
What happened
NULL pointer dereference in Linux Kernel 6.15 through 6.18.32 and 6.19 through 7.0.9 allows local users to trigger a kernel panic. The eip93_hmac_setkey() path requests a driver-specific asynchronous hash while masking out asynchronous algorithms, leaving the SA record partially initialized after the lookup fails. Local access and use of the EIP93 AEAD setkey path are required; a later crypto request reads ctx->flags through a NULL request context and halts the kernel.
The record
- CVE
- CVE-2026-53302
- Published
- Jun 26, 2026
- Updated
- Jun 26, 2026
- Vendor
- The Linux Kernel Organization
- Product
- Linux Kernel
- Classifications
- CWE-476, T1499
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Jun 26, 2026CVE publishedPublication date reported by the CVE source.
- Jun 26, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=6.15
- Affected versionversion=9739f5f93b7806a684713ba42e6ed2d1df7c8100 <3ba3b02f897b14e34977e1886d95ffe64d907204
- Affected versionversion=9739f5f93b7806a684713ba42e6ed2d1df7c8100 <ec226d3e58bb9f0e26a77346085b6b4d594d53d8
- Affected versionversion=9739f5f93b7806a684713ba42e6ed2d1df7c8100 <fc9310d79fdb117b369a01eb00f4fd5fb4849d4e
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
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
No public exploit references are available in this record.
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
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo