CVE-2026-46096

In the Linux kernel, the following vulnerability has been resolved: tpm2-sessions: Fix missing tpm_buf_destroy() in tpm2_read_public() tpm2_read_public() calls tpm_buf_init() but fails to call tpm_buf_destroy() on two exit paths, leaking a page allocation: 1. When name_size() returns an error (unrecognized hash algorithm), the function returns directly without destroying the buffer. 2. On the success path, the buffer is never destroyed before returning. All other error paths in the function correctly call tpm_buf_destroy() before returning. Fix both by adding the missing tpm_buf_destroy() calls.

Package Linux Kernel
Published 2026-05-27
Last modified 2026-05-27
Patch available
Yes

Affected versions

Linux kernel versions 6.18.3, 6.12.64, 6.19 and later are affected. Fixed in 6.18.27, 7.0.4, 7.1-rc1 and their respective stable series.

Affected from
≥ 6.18.3 ≥ 6.12.64 ≥ 6.19
Fixed in
✓ 6.18.27 6.18.x ✓ 7.0.4 7.0.x ✓ 7.1-rc1

References

The following references provide additional information about CVE-2026-46096 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Frequently asked questions

  • What is CVE-2026-46096?

    CVE-2026-46096 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 6.18.3 onward and has been patched in 6.18.27, 7.0.4 and 7.1-rc1. CVE-2026-46096 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • Is there a patch available for CVE-2026-46096?

    Yes — CVE-2026-46096 has been patched. Fixed versions include 6.18.27, 7.0.4 and 7.1-rc1. If you are running Linux kernel 6.18.3 or later up to the fix versions, apply the relevant patch for your kernel branch.

  • Is CVE-2026-46096 actively exploited?

    No — CVE-2026-46096 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

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