linux-kernel - "possible deadlock in __shm_close" in Linux Kernel v6.12-rc4

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Message-ID: <CAKHoSAvob3Zzafwqo0D_jRvfUP-SpWy9n4R-CwxMX6t-RZJMtQ@mail.gmail.com>
Date: Wed, 15 Jan 2025 10:22:11 +0800
From: cheung wall <zzqq0103.hey@...il.com>
To: linux-kernel@...r.kernel.org
Subject: "possible deadlock in __shm_close" in Linux Kernel v6.12-rc4

Hello,

I am writing to report a potential vulnerability identified in the
Linux Kernel version v6.12-rc4. This vulnerability was discovered
while i was testing the kernel.

Linux Kernel Repository Git Commit:
42f7652d3eb527d03665b09edac47f85fb600924 (tag: v6.12-rc4)

Bug Location: __shm_close+0x49/0x740 ipc/shm.c:374

Bug report: https://pastebin.com/hrWjn0VE

Entire Log: https://pastebin.com/FJGQb33J

Thank you for your time and attention.

Best regards

Wall