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12427de943
linux/fs/squashfs
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Phillip Lougher 12427de943 Squashfs: fix variable overflow triggered by sysbot 
Sysbot reports a slab out of bounds write in squashfs_readahead().

This is ultimately caused by a file reporting an (infeasibly) large file
size (1407374883553280 bytes) with the minimum block size of 4K.

This causes variable overflow.

Link: https://lkml.kernel.org/r/20231113160901.6444-1-phillip@squashfs.org.uk
Signed-off-by: Phillip Lougher <phillip@squashfs.org.uk>
Reported-by: syzbot+604424eb051c2f696163@syzkaller.appspotmail.com
Closes: https://lore.kernel.org/all/000000000000b1fda20609ede0d1@google.com/
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-12-10 17:21:26 -08:00
..
block.c squashfs: squashfs_read_data need to check if the length is 0 2023-12-06 16:12:45 -08:00
cache.c
decompressor_multi_percpu.c squashfs: don't include buffer_head.h 2023-06-09 17:44:14 -07:00
decompressor_multi.c squashfs: allows users to configure the number of decompression threads 2022-11-18 13:55:08 -08:00
decompressor_single.c squashfs: add the mount parameter theads=<single|multi|percpu> 2022-11-18 13:55:08 -08:00
decompressor.c squashfs: don't include buffer_head.h 2023-06-09 17:44:14 -07:00
decompressor.h squashfs: extend "page actor" to handle missing pages 2022-06-16 19:58:21 -07:00
dir.c
export.c exportfs: make ->encode_fh() a mandatory method for NFS export 2023-10-28 16:15:15 +02:00
file_cache.c
file_direct.c Squashfs: fix variable overflow triggered by sysbot 2023-12-10 17:21:26 -08:00
file.c Squashfs: fix variable overflow triggered by sysbot 2023-12-10 17:21:26 -08:00
fragment.c
id.c squashfs: fix xattr id and id lookup sanity checks 2021-03-25 09:22:55 -07:00
inode.c squashfs: convert to new timestamp accessors 2023-10-18 14:08:27 +02:00
Kconfig squashfs: allows users to configure the number of decompression threads 2022-11-18 13:55:08 -08:00
lz4_wrapper.c squashfs: extend "page actor" to handle missing pages 2022-06-16 19:58:21 -07:00
lzo_wrapper.c squashfs: extend "page actor" to handle missing pages 2022-06-16 19:58:21 -07:00
Makefile squashfs: always build "file direct" version of page actor 2022-07-29 18:12:34 -07:00
namei.c
page_actor.c squashfs: fix read regression introduced in readahead code 2022-10-28 13:37:21 -07:00
page_actor.h squashfs: fix read regression introduced in readahead code 2022-10-28 13:37:21 -07:00
squashfs_fs_i.h
squashfs_fs_sb.h squashfs: cache partial compressed blocks 2023-06-09 17:44:14 -07:00
squashfs_fs.h Squashfs: fix handling and sanity checking of xattr_ids count 2023-01-31 16:44:10 -08:00
squashfs.h squashfs: move squashfs_xattr_handlers to .rodata 2023-10-10 13:49:20 +02:00
super.c squashfs: cache partial compressed blocks 2023-06-09 17:44:14 -07:00
symlink.c squashfs: Convert squashfs to read_folio 2022-05-09 16:21:46 -04:00
xattr_id.c revert "squashfs: harden sanity check in squashfs_read_xattr_id_table" 2023-02-03 17:52:25 -08:00
xattr.c squashfs: move squashfs_xattr_handlers to .rodata 2023-10-10 13:49:20 +02:00
xattr.h Squashfs: fix handling and sanity checking of xattr_ids count 2023-01-31 16:44:10 -08:00
xz_wrapper.c squashfs: extend "page actor" to handle missing pages 2022-06-16 19:58:21 -07:00
zlib_wrapper.c squashfs: extend "page actor" to handle missing pages 2022-06-16 19:58:21 -07:00
zstd_wrapper.c squashfs: extend "page actor" to handle missing pages 2022-06-16 19:58:21 -07:00