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07db5e247a
The current hfsplus_put_super first calls hfs_btree_close on sbi->ext_tree, then invokes iput on sbi->hidden_dir, resulting in an use-after-free issue in hfsplus_release_folio. As shown in hfsplus_fill_super, the error handling code also calls iput before hfs_btree_close. To fix this error, we move all iput calls before hfsplus_btree_close. Note that this patch is tested on Syzbot. Link: https://lkml.kernel.org/r/20230226124948.3175736-1-mudongliangabcd@gmail.com Reported-by: syzbot+57e3e98f7e3b80f64d56@syzkaller.appspotmail.com Tested-by: Dongliang Mu <mudongliangabcd@gmail.com> Signed-off-by: Dongliang Mu <mudongliangabcd@gmail.com> Cc: Bart Van Assche <bvanassche@acm.org> Cc: Jens Axboe <axboe@kernel.dk> Cc: Muchun Song <songmuchun@bytedance.com> Cc: Roman Gushchin <roman.gushchin@linux.dev> Cc: "Theodore Ts'o" <tytso@mit.edu> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
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| .. | ||
| attributes.c | ||
| bfind.c | ||
| bitmap.c | ||
| bnode.c | ||
| brec.c | ||
| btree.c | ||
| catalog.c | ||
| dir.c | ||
| extents.c | ||
| hfsplus_fs.h | ||
| hfsplus_raw.h | ||
| inode.c | ||
| ioctl.c | ||
| Kconfig | ||
| Makefile | ||
| options.c | ||
| part_tbl.c | ||
| super.c | ||
| tables.c | ||
| unicode.c | ||
| wrapper.c | ||
| xattr_security.c | ||
| xattr_trusted.c | ||
| xattr_user.c | ||
| xattr.c | ||
| xattr.h | ||