Thread (3 messages) 3 messages, 3 authors, 8d ago

Re: [PATCH net] net: hsr: fix potential OOB access in supervision frame handling

From: Fernando Fernandez Mancera <hidden>
Date: 2026-05-23 16:33:58
Also in: lkml

On 5/23/26 3:03 PM, luka.gejak@linux.dev wrote:
From: Luka Gejak <redacted>

Ensure the entire TLV header is linearized before access by adding
sizeof(struct hsr_sup_tlv) to the pskb_may_pull() calls. Without this,
a truncated frame could cause an out-of-bounds access.

Assisted-by: Gemini:Gemini-3.1-flash
Fixes: eafaa88b3eb7 ("net: hsr: Add support for redbox supervision frames")
Signed-off-by: Luka Gejak <redacted>
Reviewed-by: Fernando Fernandez Mancera <redacted>

Thanks!
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