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fixeria has posted comments on this change. ( 
https://gerrit.osmocom.org/c/osmo-bsc/+/35791?usp=email )

Change subject: abis_nm: fix -Wunused-but-set-variable (bug)
......................................................................


Patch Set 2:

(1 comment)

File src/osmo-bsc/abis_nm.c:

https://gerrit.osmocom.org/c/osmo-bsc/+/35791/comment/c3b69e51_2e3703b5
PS2, Line 2168:                            const uint8_t *attr, int attr_len)
> what about converting attr_len to 0? it makes no sense to have a negative len 
> to start with....
This function gets `attr` / `attr_len` from an non-trusted source (received OML 
message). The `attr_len` is calculated as follows: `oh->length - sizeof(*foh)`, 
so we may end up with a negative number and this is why I am additionally 
checking this. If we change to unsigned, a negative number would turn into a 
huge number passing all our size checks.



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Gerrit-Project: osmo-bsc
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Gerrit-Change-Id: I3ca8e761fdf99dd498a979ccc9d53c6c3e03e2cc
Gerrit-Change-Number: 35791
Gerrit-PatchSet: 2
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