When the the iterator variable is declared automatically, it "inherits" the
const/non-const status from the argument. We don't need to cast a const
table to non-const. If we had a programming error and tried to modify the
string, the compiler could now catch this.
It seems that we try to create a new file, which fails with -ENOSPC, and we
later fail when reading a file with ENODATA. journal_file_open() will return
-ENODATA if the file is too short or if journal_file_verify_header() fails.
We'll unlink a file we newly created if we fail to initialize it immediately
after creation. I'm not sure if the file we fail to open is the one we newly
created and e.g. failed to create the arena and such, or if it's the file we
were trying to rotate away from. Either way, I think we should be OK with
with a non-fully-initialized journal file.
Failed to create rotated journal: No space left on device
Failed to write entry of 2 bytes: No space left on device
sd_journal_open_files(["/tmp/fuzz-journal-remote.vELRpI.journal"]) failed: No data available
Assertion 'IN_SET(r, -ENOMEM, -EMFILE, -ENFILE)' failed at src/journal-remote/fuzz-journal-remote.c:70, function int LLVMFuzzerTestOneInput(const uint8_t *, size_t)(). Aborting.
oss-fuzz-39238: https://oss-fuzz.com/issue/4609851129462784
oss-fuzz reports timeouts which are created by appending to a very long strv.
The code is indeed not very efficient, but it's designed for normal
command-line use, where we don't expect more than a dozen of entries. The fact
that it is slow with ~100k entries is not particularly interesting.
In the future we could rework the code to have better algorithmic complexity.
But let's at least stop oss-fuzz from wasting more time on such examples.
(My first approach was to set max_len in .options, but apparently this doesn't
work for hongfuzz and and AFL.)
oss-fuzz-34527: https://oss-fuzz.com/issue/5722283944574976
The reallocation of memory and counter incrementation is moved from
the only caller to the function. This way the callers can remain oblivious
of the BootConfig internals.
We also shorten the logic by getting rid of the validate_node()
function. An extra check is added to verify we're dealing with
a device before calling sd_device_new_from_devname() since that
will return -EINVAL if anything other than a device is passed.
Instead of retrieving the new sysfs path in device_process_new(),
let's pass the syspath we retrieved earlier to device_process_new()
similar to how we do for other functions in core/device.c.
Kazuo Moriwaka
Yu Watanabe
Frantisek Sumsal
Yutsuten
Luca Boccassi
Lennart Poettering
Daan De Meyer
Zbigniew Jędrzejewski-Szmek
lucagoc
Jan Janssen