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Pengcheng Yang e45de3007a bpf, sockmap: Fix missing BPF_F_INGRESS flag when using apply_bytes 
[ Upstream commit a351d6087bf7d3d8440d58d3bf244ec64b89394a ]

When redirecting, we use sk_msg_to_ingress() to get the BPF_F_INGRESS
flag from the msg->flags. If apply_bytes is used and it is larger than
the current data being processed, sk_psock_msg_verdict() will not be
called when sendmsg() is called again. At this time, the msg->flags is 0,
and we lost the BPF_F_INGRESS flag.

So we need to save the BPF_F_INGRESS flag in sk_psock and use it when
redirection.

Fixes: 8934ce2fd0 ("bpf: sockmap redirect ingress support")
Signed-off-by: Pengcheng Yang <yangpc@wangsu.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Jakub Sitnicki <jakub@cloudflare.com>
Link: https://lore.kernel.org/bpf/1669718441-2654-3-git-send-email-yangpc@wangsu.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-12-31 13:32:20 +01:00
..
acpi ACPI: APEI: Fix integer overflow in ghes_estatus_pool_init() 2022-10-13 20:40:09 +02:00
asm-generic 15 hotfixes. 11 marked cc:stable. Only three or four of the latter 2022-12-02 13:39:38 -08:00
clocksource
crypto crypto: scatterwalk - Remove unused inline function scatterwalk_aligned() 2022-09-30 13:59:13 +08:00
drm drm/ttm: fix undefined behavior in bit shift for TTM_TT_FLAG_PRIV_POPULATED 2022-12-31 13:32:06 +01:00
dt-bindings clk: imx: rename video_pll1 to video_pll 2022-12-31 13:32:16 +01:00
keys
kunit kunit: declare kunit_assert structs as const 2022-10-07 10:19:18 -06:00
kvm
linux bpf, sockmap: Fix missing BPF_F_INGRESS flag when using apply_bytes 2022-12-31 13:32:20 +01:00
math-emu
media media fixes for v6.1-rc2 2022-10-22 15:30:15 -07:00
memory
misc
net bpf, sockmap: Fix missing BPF_F_INGRESS flag when using apply_bytes 2022-12-31 13:32:20 +01:00
pcmcia
ras
rdma
rv
scsi SCSI misc on 20221007 2022-10-07 12:33:18 -07:00
soc ARM: at91: pm: avoid soft resetting AC DLL 2022-11-01 12:25:19 +02:00
sound ALSA: pcm: fix undefined behavior in bit shift for SNDRV_PCM_RATE_KNOT 2022-12-31 13:32:14 +01:00
target
trace fscache: Fix oops due to race with cookie_lru and use_cookie 2022-12-07 11:49:18 -08:00
uapi ALSA: seq: fix undefined behavior in bit shift for SNDRV_SEQ_FILTER_USE_EVENT 2022-12-31 13:32:14 +01:00
ufs SCSI misc on 20221007 2022-10-07 12:33:18 -07:00
vdso
video
xen xen/virtio: enable grant based virtio on x86 2022-10-10 14:31:26 +02:00