github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-06-04 12:35:52 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph
8bd90b6ae7
linux/fs/erofs
History
Jingbo Xu 8bd90b6ae7 erofs: fix NULL dereference of dif->bdev_handle in fscache mode 
Avoid NULL dereference of dif->bdev_handle, as dif->bdev_handle is NULL
in fscache mode.

 BUG: kernel NULL pointer dereference, address: 0000000000000000
 RIP: 0010:erofs_map_dev+0xbd/0x1c0
 Call Trace:
  <TASK>
  erofs_fscache_data_read_slice+0xa7/0x340
  erofs_fscache_data_read+0x11/0x30
  erofs_fscache_readahead+0xd9/0x100
  read_pages+0x47/0x1f0
  page_cache_ra_order+0x1e5/0x270
  filemap_get_pages+0xf2/0x5f0
  filemap_read+0xb8/0x2e0
  vfs_read+0x18d/0x2b0
  ksys_read+0x53/0xd0
  do_syscall_64+0x42/0xf0
  entry_SYSCALL_64_after_hwframe+0x6e/0x76

Reported-by: Yiqun Leng <yqleng@linux.alibaba.com>
Closes: https://bugzilla.openanolis.cn/show_bug.cgi?id=7245
Fixes: 4984572008 ("erofs: Convert to use bdev_open_by_path()")
Signed-off-by: Jingbo Xu <jefflexu@linux.alibaba.com>
Reviewed-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Reviewed-by: Yue Hu <huyue2@coolpad.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Link: https://lore.kernel.org/r/20231114070704.23398-1-jefflexu@linux.alibaba.com
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
2023-11-17 19:55:46 +08:00
..
compress.h erofs: simplify compression configuration parser 2023-10-31 06:57:19 +08:00
data.c erofs: fix NULL dereference of dif->bdev_handle in fscache mode 2023-11-17 19:55:46 +08:00
decompressor_deflate.c erofs: tidy up redundant includes 2023-10-31 06:58:49 +08:00
decompressor_lzma.c erofs: tidy up redundant includes 2023-10-31 06:58:49 +08:00
decompressor.c erofs: tidy up redundant includes 2023-10-31 06:58:49 +08:00
dir.c erofs: keep meta inode into erofs_buf 2023-04-17 01:15:50 +08:00
erofs_fs.h erofs: update on-disk format for xattr name filter 2023-08-11 12:11:44 +08:00
fscache.c erofs: avoid hardcoded blocksize for subpage block support 2023-04-17 01:15:44 +08:00
inode.c erofs: simplify erofs_read_inode() 2023-11-17 19:55:34 +08:00
internal.h Changes since last update: 2023-11-02 07:53:57 -10:00
Kconfig erofs: don't warn MicroLZMA format anymore 2023-10-31 06:56:47 +08:00
Makefile erofs: DEFLATE compression support 2023-08-11 12:11:17 +08:00
namei.c erofs: sunset erofs_dbg() 2023-04-17 01:15:54 +08:00
pcpubuf.c erofs: mark z_erofs_lzma_init/erofs_pcpubuf_init w/ __init 2023-03-09 22:49:30 +08:00
super.c vfs-6.7.fsid 2023-11-07 12:11:26 -08:00
sysfs.c erofs: make kobj_type structures constant 2023-02-15 08:11:26 +08:00
utils.c Many singleton patches against the MM code. The patch series which are 2023-11-02 19:38:47 -10:00
xattr.c erofs: move erofs_xattr_handlers and xattr_handler_map to .rodata 2023-10-09 16:24:17 +02:00
xattr.h erofs: move erofs_xattr_handlers and xattr_handler_map to .rodata 2023-10-09 16:24:17 +02:00
zdata.c erofs: fix erofs_insert_workgroup() lockref usage 2023-10-31 18:59:49 +08:00
zmap.c erofs: DEFLATE compression support 2023-08-11 12:11:17 +08:00