sd-device: do no allocate strings of unknown length on the stack

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Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=33881.

Not only we would duplicate unknown input on the stack, we would do it
over and over. So let's first check that the input has reasonable length,
but also allocate just one fixed size buffer.

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This commit is contained in:

Zbigniew Jędrzejewski-Szmek

2021-05-05 17:15:04 +02:00

parent 7ecb052fb3

commit e17c95af8e

2 changed files with 31 additions and 27 deletions

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test/fuzz/fuzz-journald-kmsg/oss-fuzz-33881

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