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Commit a1c6c569 authored by Sergey Senozhatsky's avatar Sergey Senozhatsky Committed by Theodore Ts'o
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ext4: fix NULL pointer dereference in print_daily_error_info() 



Fix NULL pointer dereference in print_daily_error_info, when   
called on unmounted fs (EXT4_SB(sb) returns NULL), by removing error 
reporting timer in ext4_put_super.

Google-Bug-Id: 3017663

Signed-off-by: default avatarSergey Senozhatsky <sergey.senozhatsky@gmail.com>
Signed-off-by: default avatar"Theodore Ts'o" <tytso@mit.edu>
parent 53fdcf99

fs/ext4/super.c

+1 −0
Original line number Original line Diff line number Diff line
@@ -719,6 +719,7 @@ static void ext4_put_super(struct super_block *sb) 
			ext4_abort(sb, "Couldn't clean up the journal");

			ext4_abort(sb, "Couldn't clean up the journal");

	}

	}





	del_timer(&sbi->s_err_report);

	ext4_release_system_zone(sb);

	ext4_release_system_zone(sb);

	ext4_mb_release(sb);

	ext4_mb_release(sb);

	ext4_ext_release(sb);

	ext4_ext_release(sb);