[NFC][LLVM] Remove redundant verifier type checks for some intrinsics (#200658)
Remove the following redundant type checks:
* `[s|u]div_fix*` intrinsics, existing checks in `isSignatureValid` will
verify that arg0 and arg1 are int or int vectors (since they use
`llvm_anyint_ty`) and arg2 is declared as i32, so checks related to it
are also redundant.
* For `lrint` family, the result is `llvm_anyfloat_ty` and the argument
is `llvm_anyint_ty`, so one of the checks is redundant.
ntsync(4)
The driver implements the ntsync interface as specified in the Linux
7.0-rc3 document Documentation/userspace-api/ntsync.rst. Only the
documentation and the userspace tests (Linux'
tools/testing/selftests/drivers/ntsync/ntsync.c) were used for
reference. When the documentation contradicted the tests, tests
behavior was implemented.
One quirk is that Linux API needs to return an error from ioctl() and to
copyout the modified ioctl() argument. Our generic ioctl() is not flexible
enough to implement this, so the ntsync_ioctl_copyout() hack allows to
copyout the ioctl parameter directly from the ioctl method, instead of
relying on the ioctl infra.
The FreeBSD port of the tests, that can be compiled both on FreeBSD and
Linux, is available at https://github.com/kostikbel/freebsd-ntsync-test.
The Linux binary compiled with the Linux test harness, cannot be run
under linuxolator due to unimplemented syscalls, but the shims in
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[TailCallElim] Drop poison-generating flags on reassociated accumulators (#200624)
For example if you have recursion like
int prod(n) {
if (n == 0) return 1;
return prod(n-1) * f(n)
}
then logically this computes (((f(1) * f(2)) * f(3)) * f(4)) * ... f(n).
But TailCallElim reassociates this, computing instead
((f(n) * f(n-1)) * f(n-2)) * ...
If the operator (* in this case) had poison-generating flags like
nsw, those may not still apply after reassociation. (For example,
suppose in this example f(1) returns 0 -- in that case the original
multiplication cannot overflow, but the new one still might.)
Fix this by clearing the poison-generating flags after reassociating.
15.1/relnotes: LinuxKPI based wirleess drivers
Adjust the carefully prepared list of changes for the 15.1 release:
- reduce the list of driver updates to the ones we actually ship.
Mediatek was in a different category anyway.
- adjust some descriptions and add notes to Realtek drivers that
there are known issues.
Sponsored by: The FreeBSD Foundation
Reviewed by: vladlen
Differential Revision: https://reviews.freebsd.org/D57243
security/vuxml: Fix nginx entry
The range seems wrong according to https://nginx.org/en/CHANGES:
Changes with nginx 1.31.1 22 May 2026
*) Security: a heap memory buffer overflow might occur in a worker
process when using a configuration with overlapping captures in
ngx_http_rewrite_module, potentially resulting in arbitrary code
execution (CVE-2026-9256).
Thanks to Mufeed VH of Winfunc Research.
ctime.3: remove warning about tm_zone and tm_gmtoff
These are standardized in posix 2024 via Austin Group Defect 1533. So they
won't go away or change anytime soon.
ok job millert
