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Please backport 8542870237c3 ("md: fix mddev uaf while iterating all_mddevs list") back down to 6.12.y (and question on older stable series back to 6.1.y)

DISCUSSION Salvatore Bonaccorso 2 participants 2 messages Apr 18, 2025 – Apr 19, 2025 Stable branch

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Hi stable mantainers,

[note I'm CC'ing here Guillaume, Yu and Christoph]

In Debian we were affected for a while by
https://bugs.debian.org/1086175 which we found to be reported by Guillaume as
https://lore.kernel.org/all/[email protected]/ .

The issue went in fact back to 6.0. The fix was applied upstream and then backported to 6.14.2 already. Can you backport it please as well down to the other stable series, at least back to 6.12.y it goes with applying (and unless I miss something fixes the issue, we cherry-picked the commit for Debian trixie and our 6.12.y kernel in advance already).

For going back to 6.1.y it seems it won't apply cleanly, You, Christoph might you be available to look into it to make this possible?

Regards,
Salvatore

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Hi,

Quoted 16 lines · Salvatore Bonaccorso

Hi stable mantainers,

[note I'm CC'ing here Guillaume, Yu and Christoph]

In Debian we were affected for a while by
https://bugs.debian.org/1086175 which we found to be reported by Guillaume as
https://lore.kernel.org/all/[email protected]/ .

The issue went in fact back to 6.0. The fix was applied upstream and then backported to 6.14.2 already. Can you backport it please as well down to the other stable series, at least back to 6.12.y it goes with applying (and unless I miss something fixes the issue, we cherry-picked the commit for Debian trixie and our 6.12.y kernel in advance already).

Quoted 3 lines

For going back to 6.1.y it seems it won't apply cleanly, You, Christoph might you be available to look into it to make this possible?

No problem, will sen LTS version soon.

Thanks,
Kuai

Quoted 5 lines

Regards,
Salvatore
.