Zhengchao Shao fd18942244 bpf: Don't redirect packets with invalid pkt_len ... Syzbot found an issue [1]: fq_codel_drop() try to drop a flow whitout any skbs, that is, the flow->head is null. The root cause, as the [2] says, is because that bpf_prog_test_run_skb() run a bpf prog which redirects empty skbs. So we should determine whether the length of the packet modified by bpf prog or others like bpf_prog_test is valid before forwarding it directly. LINK: [1] https://syzkaller.appspot.com/bug?id=0b84da80c2917757915afa89f7738a9d16ec96c5 LINK: [2] https://www.spinics.net/lists/netdev/msg777503.html Reported-by: syzbot+7a12909485b94426aceb@syzkaller.appspotmail.com Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com> Reviewed-by: Stanislav Fomichev <sdf@google.com> Link: https://lore.kernel.org/r/20220715115559.139691-1-shaozhengchao@huawei.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>		2022-07-19 09:50:54 -07:00
..
acpi	cxl for 5.19	2022-05-27 21:24:19 -07:00
asm-generic	kernel: add platform_has() infrastructure	2022-06-06 08:06:00 +02:00
clocksource	pwm: Changes for v5.19-rc1	2022-06-01 10:49:11 -07:00
crypto
drm	drm/ttm: fix bulk move handling v2	2022-06-14 11:15:19 +02:00
dt-bindings	dt-bindings: net: pcs: add bindings for Renesas RZ/N1 MII converter	2022-06-27 11:37:55 +01:00
keys	certs: Move load_certificate_list() to be with the asymmetric keys code	2022-06-21 16:05:06 +01:00
kunit
kvm
linux	bpf: Don't redirect packets with invalid pkt_len	2022-07-19 09:50:54 -07:00
math-emu
media
memory
misc
net	xsk: Mark napi_id on sendmsg()	2022-07-14 22:45:34 +02:00
pcmcia
ras
rdma	RDMA/core: Fix typo in comment	2022-05-24 11:24:58 -03:00
scsi	SCSI misc on 20220524	2022-05-25 19:09:48 -07:00
soc	net: dsa: felix: keep reference on entire tc-taprio config	2022-06-30 21:18:15 -07:00
sound	ASoC: Remove unused hw_write_t type	2022-06-24 16:21:41 +01:00
target	SCSI misc on 20220524	2022-05-25 19:09:48 -07:00
trace	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2022-06-30 16:31:00 -07:00
uapi	Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next	2022-07-09 12:24:16 -07:00
ufs	scsi: ufs: Split the drivers/scsi/ufs directory	2022-05-19 20:27:37 -04:00
vdso
video	video: fbdev: radeon: Fix spelling typo in comment	2022-05-26 13:38:59 +02:00
xen	arm/xen: Assign xen-grant DMA ops for xen-grant DMA devices	2022-06-06 16:07:30 +02:00