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Chang-Hsien Tsai 18a91ee6f9 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>
2020-04-06 19:26:03 +02:00
..
bpf_helpers.h A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
bpf_load.c samples, bpf: fix to change the buffer size for read() 2020-04-06 19:26:03 +02:00
bpf_load.h A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
fds_example.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
lathist_kern.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
lathist_user.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
libbpf.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
libbpf.h A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
Makefile A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
sock_example.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
sockex1_kern.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
sockex1_user.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
sockex2_kern.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
sockex2_user.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
sockex3_kern.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
sockex3_user.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
tcbpf1_kern.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
test_maps.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
test_verifier.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
trace_output_kern.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
trace_output_user.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
tracex1_kern.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
tracex1_user.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
tracex2_kern.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
tracex2_user.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
tracex3_kern.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
tracex3_user.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
tracex4_kern.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
tracex4_user.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
tracex5_kern.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
tracex5_user.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
tracex6_kern.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
tracex6_user.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30