High 7.8Published Aug 26, 2026

CVE-2026-80522crypto: tegra - fix rctx->cryptlen calculation in tegra_gcm_do_one_req()

Updated under an hour ago (Oct 27, 2026, 8:00 AM ET)

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Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: crypto: tegra - fix rctx->cryptlen calculation in tegra_gcm_do_one_req() Perform rctx->cryptlen calculation in tegra_gcm_do_one_req() the same way it is done in tegra_ccm_crypt_init(). The current formulae may lead to a crash if a caller does not call tegra_gcm_setauthsize() and so ctx->authsize remains zero. Then a decrypt operation with incorrect rctx->cryptlen will lead to a write beyound rctx->dst_sg buffer. As a follow-up cleanup delete struct tegra_aead_ctx->authsize field since it appears to be completely unused. Also simplify tegra_ccm_setauthsize() and tegra_gcm_setauthsize() functions respectively.

CVSS: 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Received
Record last updated: Oct 16, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from 0880bb3b00c855fc244b7177ffdaafef4d0aa1e0 before cd6991001bf0681ed0bcf21f9cc3d261d749b2bb; 0880bb3b00c855fc244b7177ffdaafef4d0aa1e0 builds before 99a18e1d979e0fad3aaf9c65ae6696897c1d9869; from 0880bb3b00c855fc244b7177ffdaafef4d0aa1e0 before c6237834d9994de209cb90c7a2c461247bce8e90; 0880bb3b00c855fc244b7177ffdaafef4d0aa1e0 builds before 360f2974fcea49c61f6d6f81554741a9eeee7168	CNA record

References

References

https://git.kernel.org/stable/c/cd6991001bf0681ed0bcf21f9cc3d261d749b2bb
https://git.kernel.org/stable/c/99a18e1d979e0fad3aaf9c65ae6696897c1d9869
https://git.kernel.org/stable/c/c6237834d9994de209cb90c7a2c461247bce8e90
https://git.kernel.org/stable/c/360f2974fcea49c61f6d6f81554741a9eeee7168

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.