[PATCH v2 0/2] net: lwip: Do not write past end of buffer

[Michal Simek]

Hi Jerome,

st 14. 1. 2026 v 16:12 odesílatel Andrew Goodbody
<andrew.goodbody at linaro.org> napsal:
>
> Fix some cases where the trailing \0 written by sprintf is not allowed
> for in the target buffer resulting in writing past the end of the
> buffer.
>
> Signed-off-by: Andrew Goodbody <andrew.goodbody at linaro.org>
> ---
> Changes in v2:
> - Address review comments from Michal Simek
> - Add a second patch to address some more instances of sprintf writing
>   past the end of the target buffer found by code inspection while
>   looking for an issue.
> - Link to v1: https://lore.kernel.org/r/20260109-tftp_fix-v1-1-64bd50abc72b@linaro.org
>
> ---
> Andrew Goodbody (2):
>       net: lwip: tftp: Do not write past buffer end
>       net: lwip: dhcp: Do not write past end of buffer
>
>  lib/lwip/lwip/src/apps/tftp/tftp.c | 2 +-
>  net/lwip/dhcp.c                    | 6 +++---
>  net/lwip/net-lwip.c                | 6 +++---
>  3 files changed, 7 insertions(+), 7 deletions(-)
> ---
> base-commit: c05dba22f1f2b0b2655ee3971644acf1936cd07a
> change-id: 20260109-tftp_fix-3ab9bd66a6ad
>
> Best regards,
> --
> Andrew Goodbody <andrew.goodbody at linaro.org>
>

Are you going to apply it? I would be good to get it in.

Thanks,
Michal


-- 
Michal Simek, Ing. (M.Eng), OpenPGP -> KeyID: FE3D1F91
w: www.monstr.eu p: +42-0-721842854
Maintainer of Linux kernel - Xilinx Microblaze
Maintainer of Linux kernel - Xilinx Zynq ARM and ZynqMP ARM64 SoCs
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