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Hou Tao 866de40744 bpf: Disallow BPF_LOG_KERNEL log level for bpf(BPF_BTF_LOAD) 
BPF_LOG_KERNEL is only used internally, so disallow bpf_btf_load()
to set log level as BPF_LOG_KERNEL. The same checking has already
been done in bpf_check(), so factor out a helper to check the
validity of log attributes and use it in both places.

Fixes: 8580ac9404 ("bpf: Process in-kernel BTF")
Signed-off-by: Hou Tao <houtao1@huawei.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Yonghong Song <yhs@fb.com>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Link: https://lore.kernel.org/bpf/20211203053001.740945-1-houtao1@huawei.com
2021-12-04 10:10:24 -08:00
..
acpi Merge branches 'acpica', 'acpi-ec', 'acpi-pmic' and 'acpi-video' 2021-11-10 14:03:14 +01:00
asm-generic asm-generic: asm/syscall.h cleanup 2021-11-10 11:22:03 -08:00
clocksource ARM: 2021-11-02 11:24:14 -07:00
crypto crypto: ecc - Export additional helper functions 2021-10-29 21:04:03 +08:00
drm Removed the TTM Huge Page functionnality to address a crash, a timeout 2021-11-11 08:14:19 +10:00
dt-bindings - Remove Drivers 2021-11-08 12:07:52 -08:00
keys
kunit include/kunit/test.h: replace kernel.h with the necessary inclusions 2021-11-09 10:02:49 -08:00
kvm
linux bpf: Disallow BPF_LOG_KERNEL log level for bpf(BPF_BTF_LOAD) 2021-12-04 10:10:24 -08:00
math-emu
media Merge branch 'akpm' (patches from Andrew) 2021-11-09 10:11:53 -08:00
memory
misc
net Networking fixes for 5.16-rc1, including fixes from bpf, can 2021-11-11 09:49:36 -08:00
pcmcia
ras
rdma RDMA/hns: Use the core code to manage the fixed mmap entries 2021-10-29 14:07:31 -03:00
scsi SCSI misc on 20211112 2021-11-12 12:25:50 -08:00
soc ARM: SoC drivers for 5.16 2021-11-03 17:00:52 -07:00
sound Revert "ALSA: memalloc: Convert x86 SG-buffer handling with non-contiguous type" 2021-11-04 22:10:03 +01:00
target
trace A slow cycle for nfsd: mainly cleanup, including Neil's patch dropping 2021-11-10 16:45:54 -08:00
uapi bpf: Pass a set of bpf_core_relo-s to prog_load command. 2021-12-02 11:18:35 -08:00
vdso
video
xen xen/balloon: rename alloc/free_xenballooned_pages 2021-11-04 12:59:44 -05:00