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android_kernel_motorola_sm6375/fs/bfs
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Filename Latest commit message Latest commit date
Tetsuo Handa 9f2df09a33 bfs: add sanity check at bfs_fill_super() 
syzbot is reporting too large memory allocation at bfs_fill_super() [1].
Since file system image is corrupted such that bfs_sb->s_start == 0,
bfs_fill_super() is trying to allocate 8MB of continuous memory. Fix
this by adding a sanity check on bfs_sb->s_start, __GFP_NOWARN and
printf().

[1] https://syzkaller.appspot.com/bug?id=16a87c236b951351374a84c8a32f40edbc034e96

Link: http://lkml.kernel.org/r/1525862104-3407-1-git-send-email-penguin-kernel@I-love.SAKURA.ne.jp
Signed-off-by: Tetsuo Handa <[email protected]>
Reported-by: syzbot <[email protected]>
Reviewed-by: Andrew Morton <[email protected]>
Cc: Tigran Aivazian <[email protected]>
Cc: Matthew Wilcox <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
2018-11-03 10:09:38 -07:00
..
bfs.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
dir.c bfs_add_entry: pass name/len as qstr pointer 2018-05-22 14:27:50 -04:00
file.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
inode.c bfs: add sanity check at bfs_fill_super() 2018-11-03 10:09:38 -07:00
Kconfig fs/bfs: remove depends on CONFIG_EXPERIMENTAL 2013-01-21 14:39:04 -08:00
Makefile