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
..
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	…
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	…
laptop	…
leds	…
lib	libbpf: Handle size overflow for ringbuf mmap	2022-12-08 11:28:39 +01:00
memory-model	…
objtool	…
pci	…
pcmcia	…
perf	perf tools: Add the include/perf/ directory to .gitignore	2022-11-16 09:58:20 +01:00
power	…
rcu	…
scripts	…
spi	…
testing	selftests: mptcp: fix mibit vs mbit mix up	2022-12-02 17:41:03 +01:00
thermal/tmon	…
time	…
tracing	…
usb	…
virtio	…
vm	…
wmi	…
Makefile	…