My current style is to copy C for "/* NOTREACHED */" instead of spelling
out "Not reached". Make this one nominal change in this one file and the
others later.
While here, word-smith "Preload" into "Pre-load" as I believe that to
be more grammatically correct in this instance.
Also while here, fix a comment capitalization error.
Lastly, bump copyright for above changes.
These platforms don't manage resources for DMA request lines or I/O
ports, this is specific to x86. Remove the references from the comments.
Reviewed by: imp, jhb
MFC after: 3 days
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D32358
In 526370fb85 "net80211: proper ssid
length check in setmlme_assoc_adhoc()" we are checking the
sizeof on an array function parameter which leads to a warning that
it will resturn the size of the type of the array rather than the
array size itself. Use the defined length used both in the ioctl
and the sizing of the array function parameter instead.
Reported by: CI
MFC after: 3 days
X-MFC with: 526370fb85
Change the probe return value from BUS_PROBE_DEFAULT to BUS_PROBE_GENERIC
given this is the "generic" attach method. This allows individual
drivers using XHCI generic but needing their own intialisation to
gain priority for attaching over the generic implementation.
Reviewed by: hselasky
Differential Revision: https://reviews.freebsd.org/D32257
In ieee80211_ies_expand() we are looping over Elements
(also known as Information Elements or IEs).
The comment suggests that we assume well-formedness of
the IEs themselves.
Checking the buffer length being least 2 (1 byte Element ID and
1 byte Length fields) rather than just 1 before accessing ie[1]
is still good practise and can prevent and out-of-bounds read in
case the input is not behaving according to the comment.
Reported by: (coypu sdf.org)
admbugs: 857
MFC after: 3 days
Reviewed by: adrian, markj
Differential Revision: https://reviews.freebsd.org/D32340
A user supplied SSID length is used without proper checks in
setmlme_assoc_adhoc() which can lead to copies beyond the end
of the user supplied buffer.
The ssid is a fixed size array for the ioctl and the argument
to setmlme_assoc_adhoc().
In addition to an ssid_len check of 0 also error in case the
ssid_len is larger than the size of the ssid array to prevent
problems.
PR: 254737
Reported by: Tommaso (cutesmilee.research protonmail.com)
MFC after: 3 days
Reviewed by: emaste, adrian
Differential Revision: https://reviews.freebsd.org/D32341
Wakeup in vm_waitpfault() does not mean that the thread would get the
page on the next vm_page_alloc() call, other thread might steal the free
page we were waiting for. On the other hand, this wakeup might come much
earlier than just vm_pfault_oom_wait seconds, if the rate of the page
reclamation is high enough.
If wakeups come fast and we loose the allocation race enough times, OOM
could be undeservably triggered much earlier than vm_pfault_oom_attempts
x vm_pfault_oom_wait seconds. Fix it by not counting the number of sleeps,
but measuring the time to th first allocation failure, and triggering OOM
when it was older than oom_attempts x oom_wait seconds.
Reviewed by: markj
Tested by: pho
Sponsored by: The FreeBSD Foundation
MFC after: 2 weeks
Differential revision: https://reviews.freebsd.org/D32287
We should reserve two descriptors (not MMC_SECTORS) for potentially
unaligned (so bounced) buffer fragments, one for the starting fragment
and one for the ending fragment.
Submitted by: kjopek@gmail.com
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D30387
Add two options, -i and -e, for filtering prometheus metrics.
Each option takes a regular expression as an argument. The provided
regex will be tested against the prometheus metric name.
The -i option includes metrics matching the given regex.
The -e option excludes metrics matching the given regex.
Sponsored by: Modirum MDPay
Sponsored by: Klara Inc.
Reviewed by: 0mp, debdrup
Differential Revision: https://reviews.freebsd.org/D32269
This can be disabled by sysctl kern.core_dump_can_intr
Reported and tested by: pho
Reviewed by: imp, markj
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D32313
Function returns an indicator that the process was killed with SIGKILL
Reviewed by: imp, markj
Tested by: pho
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D32313
also move ptrace-related helpers to ptrace_machdep.c
Apply some style. Use ANSI C function definitions.
Remove MPSAFE annotations.
Reviewed by: emaste, imp
Discussed with: jrtc27
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D32310
The ino_blkatoff() and indir_blkatoff() functions failed to release
the buffers holding second and third level indirect blocks. This
commit ensures that these buffers are now properly released.
MFC after: 1 week
Sponsored by: Netflix
There are two issues with the checks against VM_MAXUSER_ADDRESS. First,
the comparison should consider the values as unsigned, otherwise
addresses with the high bit set will fail to branch. Second, the value
of VM_MAXUSER_ADDRESS is, by convention, one larger than the maximum
mappable user address and invalid itself. Thus, use the bgeu instruction
for these comparisons.
Add a regression test case for copyin(9).
PR: 257193
Reported by: Robert Morris <rtm@lcs.mit.edu>
Reviewed by: markj
Differential Revision: https://reviews.freebsd.org/D31209
When handling a kernel page fault, check explicitly that stval resides
in either the user or kernel address spaces, and make the page fault
fatal if not. Otherwise, a properly crafted address may appear to
pmap_fault() as a valid and present page in the kernel map, causing the
page fault to be retried continuously. This is mainly due to the fact
that the upper bits of virtual addresses are not validated by most of
the pmap code.
Faults of this nature should only occur due to some kind of bug in the
kernel, but it is best to handle them gracefully when they do.
Handle user page faults in the same way, sending a SIGSEGV immediately
when a malformed address is encountered.
Add an assertion to pmap_l1(), which should help catch other bugs of
this kind that make it this far.
Reviewed by: jrtc27, markj
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D31208
The 'match' field is only used in the userspace version of the struct
(pf_anchor).
MFC after: 2 weeks
Sponsored by: Rubicon Communications, LLC ("Netgate")
This mirrors the SUBDIR_DEPEND in lib/ncurses/Makefile.
Reported by: jenkins (e.g., riscv64 build #23984)
Fixes: 396851c20a ("ncurses: split libtinfo from libncurses")
Cherry-picked from libfido2 upstream f20a735c0a6f:
iso7816: Avoid storing pointers in a packed structure
On CHERI, and thus Arm's experimental Morello prototype architecture,
pointers are represented as capabilities, which are unforgeable bounded
pointers, providing always-on fine-grained spatial memory safety. The
unforgeability is enforced through the use of tagged memory, with one
validity tag bit per capability-sized-and-aligned word in memory. This
means that storing a pointer to an unaligned location, which is not
guaranteed to work per the C standard, either traps or results in the
capability losing its tag (and thus never being dereferenceable again),
depending on how exactly the store is done (specifically, whether a
capability store or memcpy is used).
However, iso7816 itself does not need to be packed, and doing so likely
causes inefficiencies on existing architectures. The iso7816_header_t
member is packed, and the flexible payload array is a uint8_t (which by
definition has no padding bits and is exactly 8 bits in size and, since
CHAR_BITS must be at least 8, its existence implies that it has the same
representation as unsigned char, and that it has size and alignment 1)
so there will never be any padding inserted between header and payload
(but payload may overlap with padding at the end of the struct due to
how flexible arrays work, which means we need to be careful about our
calculations).
Co-authored-by: pedro martelletto <pedro@yubico.com>
Pass the ivlen along through, and just drop this KASSERT() if we're
building _STANDALONE for the time being.
Fixes: 1833d6042c ("crypto: Permit variable-sized IVs ...")
This is useful for diagnosing problems. In particular, the errata
sheets identify the EEPROM version for many fixes.
Reviewed by: gallatin
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D32333
Otherwise results in KASSERT with debug kernels because we rely on the
iflib CTX lock to implement the software serialization to the NVM model
Reviewed by: gallatin
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D32333
This is useful for WireGuard which uses a nonce of 8 bytes rather
than the 12 bytes used for IPsec and TLS.
Note that this also fixes a (should be) harmless bug in ossl(4) where
the counter was incorrectly treated as a 64-bit counter instead of a
32-bit counter in terms of wrapping when using a 12 byte nonce.
However, this required a single message (TLS record) longer than 64 *
(2^32 - 1) bytes (about 256 GB) to trigger.
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D32122
Previously, only test vectors which used the default nonce and tag
sizes (12 and 16, respectively) were tested. This now tests all of
the vectors. This exposed some additional issues around requests with
an empty payload (which wasn't supported) and an empty AAD (which
falls back to CIOCCRYPT instead of CIOCCRYPTAEAD).
- Make use of the 'ivlen' and 'maclen' fields for CIOGSESSION2 to
test AES-CCM vectors with non-default nonce and tag lengths.
- Permit requests with an empty payload.
- Permit an input MAC for requests without AAD.
Reviewed by: markj
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D32121
The tag length is included as one of the values in the flags byte of
block 0 passed to CBC_MAC, so merely copying the first N bytes is
insufficient.
To avoid adding more sideband data to the CBC MAC software context,
pull the generation of block 0, the AAD length, and AAD padding out of
cbc_mac.c and into cryptosoft.c. This matches how GCM/GMAC are
handled where the length block is constructed in cryptosoft.c and
passed as an input to the Update callback. As a result, the CBC MAC
Update() routine is now much simpler and simply performs the
XOR-and-encrypt step on each input block.
While here, avoid a copy to the staging block in the Update routine
when one or more full blocks are passed as input to the Update
callback.
Reviewed by: sef
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D32120
