Fix ext4 mount stripe size check missing causing divide-by-zero

From this webpage screenshot, we can extract the following key information about the vulnerability: 1. Vulnerability Description: - Issue: In the ext4 filesystem, if the stripe size is not a multiple of the cluster ratio, this check may be missed during mount attempts. - Impact: This could result in the stripe size being smaller than the cluster ratio after mounting, potentially triggering unforeseen errors such as division by zero. 2. Fix: - Solution: A check for stripe size was added to the mount path. - Code Change: Modifications were made in the file , adding a stripe size validation. 3. Code Change Details: - File: - Lines: 29 lines added, 7 lines removed. - Specific Changes: - Added logic to check stripe size. - Modified the function to include stripe size validation. 4. Reporting and Testing: - Reporter: syzbot+lad8bac5af24d01e2cbd@syzkaller.appspotmail.com - Tester: syzbot+lad8bac5af24d01e2cbd@syzkaller.appspotmail.com - Reviewers: Kemeng Shi , Ritesh Harjani (IBM) - Fixers: Ojaswin Mujoo , Theodore Ts'o , Sasha Levin 5. Links: - Upstream Commit: https://patch-msgid.link/3a493bb503c3598e25dcfbed2936bb2dfff3ece7.1725002410.git.ojaswin@linux.ibm.com This information indicates that the vulnerability has been fixed and underwent thorough review and testing.

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Fix ext4 mount stripe size check missing causing divide-by-zero