Hou Tao 0140e079a4 libbpf: Handle size overflow for ringbuf mmap ... [ Upstream commit 927cbb478a ] The maximum size of ringbuf is 2GB on x86-64 host, so 2 * max_entries will overflow u32 when mapping producer page and data pages. Only casting max_entries to size_t is not enough, because for 32-bits application on 64-bits kernel the size of read-only mmap region also could overflow size_t. So fixing it by casting the size of read-only mmap region into a __u64 and checking whether or not there will be overflow during mmap. Fixes: bf99c936f9 ("libbpf: Add BPF ring buffer support") Signed-off-by: Hou Tao <houtao1@huawei.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20221116072351.1168938-3-houtao@huaweicloud.com Signed-off-by: Sasha Levin <sashal@kernel.org>		2022-12-08 11:28:39 +01:00
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accounting
arch	x86/cpu: Restore AMD's DE_CFG MSR after resume	2022-11-16 09:58:31 +01:00
bootconfig
bpf	bpftool: Fix NULL pointer dereference when pin {PROG, MAP, LINK} without FILE	2022-11-16 09:58:15 +01:00
build	tools build: Switch to new openssl API for test-libcrypto	2022-08-25 11:40:14 +02:00
cgroup
debugging
edid
firewire
firmware
gpio
hv
iio	tools: iio: iio_generic_buffer: Fix read size	2022-12-02 17:41:10 +01:00
include	tools/nolibc/string: Fix memcmp() implementation	2022-11-10 18:15:38 +01:00
io_uring
kvm/kvm_stat	tools/kvm_stat: fix display of error when multiple processes are found	2022-08-11 13:07:51 +02:00
laptop
leds
lib	libbpf: Handle size overflow for ringbuf mmap	2022-12-08 11:28:39 +01:00
memory-model
objtool	objtool: Preserve special st_shndx indexes in elf_update_symbol	2022-10-26 12:34:37 +02:00
pci
pcmcia
perf	perf tools: Add the include/perf/ directory to .gitignore	2022-11-16 09:58:20 +01:00
power	tools/power turbostat: fix ICX DRAM power numbers	2022-06-09 10:22:32 +02:00
rcu
scripts
spi
testing	selftests: mptcp: fix mibit vs mbit mix up	2022-12-02 17:41:03 +01:00
thermal/tmon	tools/thermal: Fix possible path truncations	2022-08-17 14:24:15 +02:00
time
tracing
usb
virtio	tools/virtio: compile with -pthread	2022-05-25 09:57:25 +02:00
vm	tools/vm/slabinfo: use alphabetic order when two values are equal	2022-08-25 11:40:13 +02:00
wmi
Makefile