On 2023/4/4 0:54, Jaegeuk Kim wrote:
We got a kernel panic if old_addr is NULL.
https://bugzilla.kernel.org/show_bug.cgi?id=217266
BUG: kernel NULL pointer dereference, address: 0000000000000000
Call Trace:
<TASK>
f2fs_commit_atomic_write+0x619/0x990 [f2fs
a1b985b80f5babd6f3ea778384908880812bfa43]
__f2fs_ioctl+0xd8e/0x4080 [f2fs a1b985b80f5babd6f3ea778384908880812bfa43]
? vfs_write+0x2ae/0x3f0
? vfs_write+0x2ae/0x3f0
__x64_sys_ioctl+0x91/0xd0
do_syscall_64+0x5c/0x90
entry_SYSCALL_64_after_hwframe+0x72/0xdc
RIP: 0033:0x7f69095fe53f
Fixes: 2f3a9ae990a7 ("f2fs: introduce trace_f2fs_replace_atomic_write_block")
Cc: <sta...@vger.kernel.org>
Signed-off-by: Jaegeuk Kim <jaeg...@kernel.org>
Thanks for fixing this. :)
Reviewed-by: Chao Yu <c...@kernel.org>
Thanks,
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