linux-ext4 - [Bug 220818] New: kernel 6.8.0-88: General Protection Fault (GPF) in ext4 while running 'umount': RIP: 0010:dentry_unlink

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Message-ID: <bug-220818-13602@https.bugzilla.kernel.org/>
Date: Mon, 01 Dec 2025 00:39:22 +0000
From: bugzilla-daemon@...nel.org
To: linux-ext4@...r.kernel.org
Subject: [Bug 220818] New: kernel 6.8.0-88: General Protection Fault (GPF) in
 ext4 while running 'umount': RIP: 0010:dentry_unlink_inode+0x52/0x150

https://bugzilla.kernel.org/show_bug.cgi?id=220818

            Bug ID: 220818
           Summary: kernel 6.8.0-88: General Protection Fault (GPF) in
                    ext4 while running 'umount': RIP:
                    0010:dentry_unlink_inode+0x52/0x150
           Product: File System
           Version: 2.5
          Hardware: AMD
                OS: Linux
            Status: NEW
          Severity: high
          Priority: P3
         Component: ext4
          Assignee: fs_ext4@...nel-bugs.osdl.org
          Reporter: ubuntu@...dor.com
        Regression: No

Created attachment 308991
  --> https://bugzilla.kernel.org/attachment.cgi?id=308991&action=edit
Relevant lines from syslog of crash

Getting a reproducible GPF in ext4 filesystem dentry_unlink_inode while running
userland 'sudo umount /media/some-mountpoint' after a large backup where many
modifications are waiting to be flushed to disk.


System is amdgpu multicore if that is relevant.

Kernel is: 6.8.0-88-generic.


Full kernel GPF report in the attachment.

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