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android_kernel_oneplus_msm8998/samples/bpf
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Chang-Hsien Tsai cf37c80bc9 samples, bpf: fix to change the buffer size for read() 
[ Upstream commit f7c2d64bac1be2ff32f8e4f500c6e5429c1003e0 ]

If the trace for read is larger than 4096, the return
value sz will be 4096. This results in off-by-one error
on buf:

    static char buf[4096];
    ssize_t sz;

    sz = read(trace_fd, buf, sizeof(buf));
    if (sz > 0) {
        buf[sz] = 0;
        puts(buf);
    }

Signed-off-by: Chang-Hsien Tsai <luke.tw@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2019-07-21 09:07:06 +02:00
..
bpf_helpers.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2015-11-01 00:15:30 -04:00
bpf_load.c samples, bpf: fix to change the buffer size for read() 2019-07-21 09:07:06 +02:00
bpf_load.h samples/bpf: Add simple non-portable kprobe filter example 2015-04-02 13:25:50 +02:00
fds_example.c bpf: add sample usages for persistent maps/progs 2015-11-02 22:48:39 -05:00
lathist_kern.c bpf: BPF based latency tracing 2015-06-23 06:09:58 -07:00
lathist_user.c bpf: BPF based latency tracing 2015-06-23 06:09:58 -07:00
libbpf.c bpf: add sample usages for persistent maps/progs 2015-11-02 22:48:39 -05:00
libbpf.h bpf: add sample usages for persistent maps/progs 2015-11-02 22:48:39 -05:00
Makefile bpf: samples: exclude asm/sysreg.h for arm64 2015-11-16 14:40:49 -05:00
sock_example.c samples/bpf: Add simple non-portable kprobe filter example 2015-04-02 13:25:50 +02:00
sockex1_kern.c samples: bpf: add skb->field examples and tests 2015-03-15 22:02:28 -04:00
sockex1_user.c samples: bpf: add skb->field examples and tests 2015-03-15 22:02:28 -04:00
sockex2_kern.c samples: bpf: add skb->field examples and tests 2015-03-15 22:02:28 -04:00
sockex2_user.c samples: bpf: add skb->field examples and tests 2015-03-15 22:02:28 -04:00
sockex3_kern.c bpf: allow programs to write to certain skb fields 2015-06-07 02:01:33 -07:00
sockex3_user.c samples/bpf: bpf_tail_call example for networking 2015-05-21 17:07:59 -04:00
tcbpf1_kern.c bpf: add bpf_redirect() helper 2015-09-17 21:09:07 -07:00
test_maps.c samples: bpf: relax test_maps check 2015-01-26 17:20:40 -08:00
test_verifier.c bpf: add unprivileged bpf tests 2015-10-12 19:13:37 -07:00
trace_output_kern.c samples/bpf: fix trace_output example 2016-05-18 17:06:38 -07:00
trace_output_user.c samples: bpf: add bpf_perf_event_output example 2015-10-22 06:42:15 -07:00
tracex1_kern.c samples: bpf: enable trace samples for s390x 2015-07-08 15:17:45 -07:00
tracex1_user.c samples/bpf: Add simple non-portable kprobe filter example 2015-04-02 13:25:50 +02:00
tracex2_kern.c samples: bpf: enable trace samples for s390x 2015-07-08 15:17:45 -07:00
tracex2_user.c bpf: introduce current->pid, tgid, uid, gid, comm accessors 2015-06-15 15:53:50 -07:00
tracex3_kern.c samples: bpf: enable trace samples for s390x 2015-07-08 15:17:45 -07:00
tracex3_user.c samples/bpf: Add IO latency analysis (iosnoop/heatmap) tool 2015-04-02 13:25:51 +02:00
tracex4_kern.c samples: bpf: enable trace samples for s390x 2015-07-08 15:17:45 -07:00
tracex4_user.c samples/bpf: Add kmem_alloc()/free() tracker tool 2015-04-02 13:25:51 +02:00
tracex5_kern.c samples: bpf: enable trace samples for s390x 2015-07-08 15:17:45 -07:00
tracex5_user.c samples/bpf: bpf_tail_call example for tracing 2015-05-21 17:07:59 -04:00
tracex6_kern.c bpf: fix build warnings and add function read_trace_pipe() 2015-08-12 16:39:12 -07:00
tracex6_user.c bpf: fix build warnings and add function read_trace_pipe() 2015-08-12 16:39:12 -07:00