Revision 7892032cfe67f4bde6fc2ee967e45a8fbaf33756 authored by Eric Dumazet on 05 February 2017, 07:18:55 UTC, committed by David S. Miller on 05 February 2017, 22:23:04 UTC
Andrey Konovalov reported out of bound accesses in ip6gre_err() If GRE flags contains GRE_KEY, the following expression *(((__be32 *)p) + (grehlen / 4) - 1) accesses data ~40 bytes after the expected point, since grehlen includes the size of IPv6 headers. Let's use a "struct gre_base_hdr *greh" pointer to make this code more readable. p[1] becomes greh->protocol. grhlen is the GRE header length. Fixes: c12b395a4664 ("gre: Support GRE over IPv6") Signed-off-by: Eric Dumazet <edumazet@google.com> Reported-by: Andrey Konovalov <andreyknvl@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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File | Mode | Size |
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.gitignore | -rw-r--r-- | 151 bytes |
Kconfig | -rw-r--r-- | 7.5 KB |
Makefile | -rw-r--r-- | 2.0 KB |
gen_init_cpio.c | -rw-r--r-- | 12.7 KB |
initramfs_data.S | -rw-r--r-- | 1.3 KB |
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