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This demonstrates the race quite easily against
Samba and works fine against Windows Server 2022.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15346
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
It seems commit 259129e8f4bc8cacd1850eba3f6551134835d079 was partly just
fantasy...
Windows clients just use 16 bytes for DCERPC_PKT_CO_CANCEL and
DCERPC_PKT_ORPHANED pdus.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15446
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
Autobuild-User(master): Volker Lendecke <vl@samba.org>
Autobuild-Date(master): Tue Aug 8 08:57:46 UTC 2023 on atb-devel-224
DCERPC_PKT_CO_CANCEL and DCERPC_PKT_ORPHANED don't have any payload by
default. In order to receive them via dcerpc_read_ncacn_packet_send/recv
we need to allow fragments with frag_len == DCERPC_NCACN_PAYLOAD_OFFSET.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15446
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
The PDUs were generated by Windows clients.
And we fail to parse them currently.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15446
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
Otherwise we getthis kind of thing:
../../lib/replace/replace.c:837:3: error: implicit declaration of function 'strlcpy' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
strlcpy(buf, s, buflen);
../../third_party/heimdal/lib/roken/getarg.c:288:6: error: implicit declaration of function 'strlcat' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
strlcat(buf, "]", sizeof(buf));
because we found the symbol names in libc, but didn't check that the
functions are declared in <string.h>. We already include
<bsd/string.h> whenever we have it.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Tue Aug 8 05:35:08 UTC 2023 on atb-devel-224
We were wanting to ensure the string contains a zero byte, but
instead were checking for a non-zero byte.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
We have been using `uint8_t *`, which works fine as far as
linking goes, but leads fuzz target developers to sometimes
forget why they can't just modify the passed in string instead of
copying it for modification (e.g. to NUL-terminate).
REF: https://llvm.org/docs/LibFuzzer.html#fuzz-target
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Allocate these objects on a shorter-lived memory context.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
