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Change History

In the Linux kernel, the following vulnerability has been resolved:

f2fs: fix to avoid potential panic during recovery

During recovery, if FAULT_BLOCK is on, it is possible that
f2fs_reserve_new_block() will return -ENOSPC during recovery,
then it may trigger panic.

Also, if fault injection rate is 1 and only FAULT_BLOCK fault
type is on, it may encounter deadloop in loop of block reservation.

Let's change as below to fix these issues:
- remove bug_on() to avoid panic.
- limit the loop count

kernel.org https://git.kernel.org/stable/c/21ec68234826b1b54ab980a8df6e33c74cfbee58 [No types assigned]

kernel.org https://git.kernel.org/stable/c/8844b2f8a3f0c428b74672f9726f9950b1a7764c [No types assigned]

kernel.org https://git.kernel.org/stable/c/d034810d02a5af8eb74debe29877dcaf5f00fdd1 [No types assigned]

kernel.org https://git.kernel.org/stable/c/f26091a981318b5b7451d61f99bc073a6af8db67 [No types assigned]

kernel.org https://git.kernel.org/stable/c/fe4de493572a4263554903bf9c3afc5c196e15f0 [No types assigned]