Siddh Raman Pant 2144859229 erofs/zmap.c: Fix incorrect offset calculation ... [ Upstream commit 6acd87d509 ] Effective offset to add to length was being incorrectly calculated, which resulted in iomap->length being set to 0, triggering a WARN_ON in iomap_iter_done(). Fix that, and describe it in comments. This was reported as a crash by syzbot under an issue about a warning encountered in iomap_iter_done(), but unrelated to erofs. C reproducer: https://syzkaller.appspot.com/text?tag=ReproC&x=1037a6b2880000 Kernel config: https://syzkaller.appspot.com/text?tag=KernelConfig&x=e2021a61197ebe02 Dashboard link: https://syzkaller.appspot.com/bug?extid=a8e049cd3abd342936b6 Reported-by: syzbot+a8e049cd3abd342936b6@syzkaller.appspotmail.com Suggested-by: Gao Xiang <hsiangkao@linux.alibaba.com> Signed-off-by: Siddh Raman Pant <code@siddh.me> Reviewed-by: Gao Xiang <hsiangkao@linux.alibaba.com> Reviewed-by: Chao Yu <chao@kernel.org> Link: https://lore.kernel.org/r/20221209102151.311049-1-code@siddh.me Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com> Signed-off-by: Sasha Levin <sashal@kernel.org>		2023-02-06 07:59:00 +01:00
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Kconfig	erofs: iomap support for non-tailpacking DIO	2021-08-10 00:14:42 +08:00
Makefile	erofs: introduce multipage per-CPU buffers	2021-04-10 03:19:59 +08:00
compress.h	erofs: clean up file headers & footers	2021-06-08 00:41:24 +08:00
data.c	iomap: Add done_before argument to iomap_dio_rw	2022-05-01 17:22:32 +02:00
decompressor.c	erofs: avoid consecutive detection for Highmem memory	2022-08-17 14:23:12 +02:00
dir.c	erofs: clean up file headers & footers	2021-06-08 00:41:24 +08:00
erofs_fs.h	erofs: introduce chunk-based file on-disk format	2021-08-20 22:38:01 +08:00
inode.c	erofs: fix order >= MAX_ORDER warning due to crafted negative i_size	2022-12-08 11:28:37 +01:00
internal.h	erofs: fix pcluster use-after-free on UP platforms	2022-09-15 11:30:06 +02:00
namei.c	erofs: add fiemap support with iomap	2021-08-19 00:13:43 +08:00
pcpubuf.c	erofs: introduce multipage per-CPU buffers	2021-04-10 03:19:59 +08:00
super.c	libnvdimm for v5.15	2021-09-09 11:39:57 -07:00
tagptr.h	erofs: clean up file headers & footers	2021-06-08 00:41:24 +08:00
utils.c	erofs: fix deadlock when shrink erofs slab	2021-12-01 09:04:50 +01:00
xattr.c	vfs: add rcu argument to ->get_acl() callback	2021-08-18 22:08:24 +02:00
xattr.h	vfs: add rcu argument to ->get_acl() callback	2021-08-18 22:08:24 +02:00
zdata.c	erofs: fix unsafe pagevec reuse of hooked pclusters	2021-11-18 19:17:15 +01:00
zdata.h	erofs: clean up file headers & footers	2021-06-08 00:41:24 +08:00
zmap.c	erofs/zmap.c: Fix incorrect offset calculation	2023-02-06 07:59:00 +01:00
zpvec.h	erofs: fix unsafe pagevec reuse of hooked pclusters	2021-11-18 19:17:15 +01:00