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Filename Latest commit message Latest commit date
Daniel Borkmann 283d742988 bpf: Inherit expanded/patched seen count from old aux data
commit d203b0fd863a2261e5d00b97f3d060c4c2a6db71 upstream

Instead of relying on current env->pass_cnt, use the seen count from the
old aux data in adjust_insn_aux_data(), and expand it to the new range of
patched instructions. This change is valid given we always expand 1:n
with n>=1, so what applies to the old/original instruction needs to apply
for the replacement as well.

Not relying on env->pass_cnt is a prerequisite for a later change where we
want to avoid marking an instruction seen when verified under speculative
execution path.

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: John Fastabend <john.fastabend@gmail.com>
Reviewed-by: Benedict Schlueter <benedict.schlueter@rub.de>
Reviewed-by: Piotr Krysiuk <piotras@gmail.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
[OP: declare old_data as bool instead of u32 (struct bpf_insn_aux_data.seen
     is bool in 5.4)]
Signed-off-by: Ovidiu Panait <ovidiu.panait@windriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-08-08 09:04:08 +02:00
arch powerpc/pseries: Fix regression while building external modules 2021-08-04 12:27:40 +02:00
block rq-qos: fix missed wake-ups in rq_qos_throttle try two 2021-07-19 08:53:16 +02:00
certs certs: Move load_system_certificate_list to a common function 2021-06-30 08:47:55 -04:00
crypto crypto: shash - avoid comparing pointers to exported functions under CFI 2021-07-14 16:53:13 +02:00
Documentation userfaultfd: do not untag user pointers 2021-07-28 13:31:01 +02:00
drivers Revert "watchdog: iTCO_wdt: Account for rebooting on second timeout" 2021-08-08 09:04:08 +02:00
fs btrfs: fix lost inode on log replay after mix of fsync, rename and inode eviction 2021-08-08 09:04:07 +02:00
include ACPI: fix NULL pointer dereference 2021-08-08 09:04:08 +02:00
init kbuild: add CONFIG_LD_IS_LLD 2021-06-30 08:47:44 -04:00
ipc
kernel bpf: Inherit expanded/patched seen count from old aux data 2021-08-08 09:04:08 +02:00
lib lib/decompress_unlz4.c: correctly handle zero-padding around initrds. 2021-07-20 16:10:46 +02:00
LICENSES
mm mm: slab: fix kmem_cache_create failed when sysfs node not destroyed 2021-07-25 14:35:14 +02:00
net Revert "Bluetooth: Shutdown controller after workqueues are flushed or cancelled" 2021-08-08 09:04:08 +02:00
samples samples/bpf: Fix the error return code of xdp_redirect's main() 2021-07-14 16:53:30 +02:00
scripts kbuild: mkcompile_h: consider timestamp if KBUILD_BUILD_TIMESTAMP is set 2021-07-25 14:35:12 +02:00
security smackfs: restrict bytes count in smk_set_cipso() 2021-07-19 08:53:18 +02:00
sound ASoC: tlv320aic31xx: fix reversed bclk/wclk master bits 2021-08-08 09:04:07 +02:00
tools Revert "perf map: Fix dso->nsinfo refcounting" 2021-08-04 12:27:40 +02:00
usr
virt KVM: add missing compat KVM_CLEAR_DIRTY_LOG 2021-08-04 12:27:37 +02:00
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
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COPYING
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Makefile Linux 5.4.138 2021-08-04 12:27:40 +02:00
README

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.