luck/tmp_suning_uos_patched
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[PATCH] Fix oops in ufs_fill_super at mount time

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There's a lack of parenthesis in fs/ufs/utils.h, so instead of the 512th
byte of buffer, the usb2 pointer will point to the nth structure of type
ufs_super_block_second.

This can cause a mount-time oops if you're unlucky (especially with
DEBUG_PAGEALLOC, which is how Alexey Dobriyan saw this problem)

Signed-off-by: Evgeniy Dushistov <dushistov@mail.ru>
Acked-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Evgeniy 2006-01-13 18:12:15 +03:00 committed by Linus Torvalds
parent 43ecb9a33b
commit 8a430d74fe
1 changed files with 2 additions and 2 deletions
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4
fs/ufs/util.h
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@ -255,8 +255,8 @@ extern void _ubh_memcpyubh_(struct ufs_sb_private_info *, struct ufs_buffer_head
((struct ufs_super_block_first *)((ubh)->bh[0]->b_data))
#define ubh_get_usb_second(ubh) \
((struct ufs_super_block_second *)(ubh)-> \
bh[UFS_SECTOR_SIZE >> uspi->s_fshift]->b_data + (UFS_SECTOR_SIZE & ~uspi->s_fmask))
((struct ufs_super_block_second *)((ubh)->\
bh[UFS_SECTOR_SIZE >> uspi->s_fshift]->b_data + (UFS_SECTOR_SIZE & ~uspi->s_fmask)))
#define ubh_get_usb_third(ubh) \
((struct ufs_super_block_third *)((ubh)-> \