Messages in this thread Patch in this message | | | From | Hongfei Shang <> | Subject | [PATCH] initramfs: fix "Decoding failed" | Date | Wed, 30 Dec 2020 13:59:40 +0800 |
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From: Hongfei Shang <shanghongfei@kylinos.cn>
when initrd image file load in memory, it is align to 4 bytes, so there are may be some padding bytes(<4), should ignore these padding bytes and handle as normal end
before: (when size of initrd.img is: size%4 = 1, 2 or 3) "Initramfs unpacking failed: Decoding failed"
after: no error message
Signed-off-by: Hongfei Shang <shanghongfei@kylinos.cn> --- lib/decompress_unlz4.c | 8 ++++++++ 1 file changed, 8 insertions(+)
diff --git a/lib/decompress_unlz4.c b/lib/decompress_unlz4.c index c0cfcfd486be..7527f1541dfd 100644 --- a/lib/decompress_unlz4.c +++ b/lib/decompress_unlz4.c @@ -181,6 +181,14 @@ STATIC inline int INIT unlz4(u8 *input, long in_len, goto exit_2; } inp += chunksize; + + if (size < 4) { + unsigned int padding = 0; + + memcpy(&padding, inp, size); + if (padding == 0) + break; + } } } -- 2.25.1
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