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authorJan Kara <jack@suse.cz>2009-01-06 14:53:35 -0500
committerTheodore Ts'o <tytso@mit.edu>2009-01-06 14:53:35 -0500
commit4b905671d2ea09fd48fed72c581df17e40823f39 (patch)
tree62fcc9de092b2161b449f9205d516cba2e82b0b7 /fs/ext3
parent83982b6f47201c4c7767210d24d7d8c99567a0b3 (diff)
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jbd2: Fix oops in jbd2_journal_init_inode() on corrupted fs
On 32-bit system with CONFIG_LBD getblk can fail because provided block number is too big. Add error checks so we fail gracefully if getblk() returns NULL (which can also happen on memory allocation failures). Thanks to David Maciejak from Fortinet's FortiGuard Global Security Research Team for reporting this bug. http://bugzilla.kernel.org/show_bug.cgi?id=12370 Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> cc: stable@kernel.org
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