CVEvulnerability
CVE-2026-80522
7.8 HIGH
Official page ↗
- Status
- Received
- Published
- 2026-08-26
- Last modified
- 2026-10-16
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Description
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.
References
- https://git.kernel.org/stable/c/360f2974fcea49c61f6d6f81554741a9eeee7168 git.kernel.org
- https://git.kernel.org/stable/c/99a18e1d979e0fad3aaf9c65ae6696897c1d9869 git.kernel.org
- https://git.kernel.org/stable/c/c6237834d9994de209cb90c7a2c461247bce8e90 git.kernel.org
- https://git.kernel.org/stable/c/cd6991001bf0681ed0bcf21f9cc3d261d749b2bb git.kernel.org