kernel/linux.git/fs/minix, branch v6.12.80

minix: Add required sanity checking to minix_check_superblock()

2026-03-04T12:20:52+00:00

[ Upstream commit 8c97a6ddc95690a938ded44b4e3202f03f15078c ] The fs/minix implementation of the minix filesystem does not currently support any other value for s_log_zone_size than 0. This is also the only value supported in util-linux; see mkfs.minix.c line 511. In addition, this patch adds some sanity checking for the other minix superblock fields, and moves the minix_blocks_needed() checks for the zmap and imap also to minix_check_super_block(). This also closes a related syzbot bug report. Signed-off-by: Jori Koolstra Link: https://patch.msgid.link/20251208153947.108343-1-jkoolstra@xs4all.nl Reviewed-by: Jan Kara Reported-by: syzbot+5ad0824204c7bf9b67f2@syzkaller.appspotmail.com Closes: https://syzkaller.appspot.com/bug?extid=5ad0824204c7bf9b67f2 Signed-off-by: Christian Brauner Signed-off-by: Sasha Levin

minixfs: Verify inode mode when loading from disk

2025-10-19T14:34:05+00:00

[ Upstream commit 73861970938ad1323eb02bbbc87f6fbd1e5bacca ] The inode mode loaded from corrupted disk can be invalid. Do like what commit 0a9e74051313 ("isofs: Verify inode mode when loading from disk") does. Reported-by: syzbot Closes: https://syzkaller.appspot.com/bug?extid=895c23f6917da440ed0d Signed-off-by: Tetsuo Handa Link: https://lore.kernel.org/ec982681-84b8-4624-94fa-8af15b77cbd2@I-love.SAKURA.ne.jp Signed-off-by: Christian Brauner Signed-off-by: Sasha Levin

buffer: Convert __block_write_begin() to take a folio

2024-08-07T09:33:36+00:00

Almost all callers have a folio now, so change __block_write_begin() to take a folio and remove a call to compound_head(). Reviewed-by: Josef Bacik Signed-off-by: Matthew Wilcox (Oracle) Signed-off-by: Christian Brauner

fs: Convert aops->write_begin to take a folio

2024-08-07T09:33:21+00:00

Convert all callers from working on a page to working on one page of a folio (support for working on an entire folio can come later). Removes a lot of folio->page->folio conversions. Reviewed-by: Josef Bacik Signed-off-by: Matthew Wilcox (Oracle) Signed-off-by: Christian Brauner

buffer: Convert block_write_end() to take a folio

2024-08-07T09:31:59+00:00

All callers now have a folio, so pass it in instead of converting from a folio to a page and back to a folio again. Saves a call to compound_head(). Reviewed-by: Josef Bacik Signed-off-by: Matthew Wilcox (Oracle) Signed-off-by: Christian Brauner

minixfs: Convert dir_commit_chunk() to take a folio

2024-08-07T09:31:57+00:00

All callers now have a folio, so pass it in. Saves a call to compound_head(). Reviewed-by: Josef Bacik Signed-off-by: Matthew Wilcox (Oracle) Signed-off-by: Christian Brauner

minixfs: Convert minix_prepare_chunk() to take a folio

2024-08-07T09:31:57+00:00

All callers now have a folio, so convert minix_prepare_chunk() to take one. Reviewed-by: Josef Bacik Signed-off-by: Matthew Wilcox (Oracle) Signed-off-by: Christian Brauner

minixfs: Convert minix_make_empty() to use a folio

2024-08-07T09:31:57+00:00

Removes a few hidden calls to compound_head(). Reviewed-by: Josef Bacik Signed-off-by: Matthew Wilcox (Oracle) Signed-off-by: Christian Brauner

minixfs: Convert minix_delete_entry() to work on a folio

2024-08-07T09:31:57+00:00

Match ext2 and remove a few hidden calls to compound_head(). Reviewed-by: Josef Bacik Signed-off-by: Matthew Wilcox (Oracle) Signed-off-by: Christian Brauner

minixfs: Convert minix_set_link() and minix_dotdot() to take a folio

2024-08-07T09:31:56+00:00

This matches ext2 and removes a few hidden calls to compound_head(). Reviewed-by: Josef Bacik Signed-off-by: Matthew Wilcox (Oracle) Signed-off-by: Christian Brauner