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292c997a19
As does in __sctp_connect(), when checking addrs in a while loop, after
get the addr len according to sa_family, it's necessary to do the check
walk_size + af->sockaddr_len > addrs_size to make sure it won't access
an out-of-bounds addr.
The same thing is needed in selinux_sctp_bind_connect(), otherwise an
out-of-bounds issue can be triggered:
[14548.772313] BUG: KASAN: slab-out-of-bounds in selinux_sctp_bind_connect+0x1aa/0x1f0
[14548.927083] Call Trace:
[14548.938072] dump_stack+0x9a/0xe9
[14548.953015] print_address_description+0x65/0x22e
[14548.996524] kasan_report.cold.6+0x92/0x1a6
[14549.015335] selinux_sctp_bind_connect+0x1aa/0x1f0
[14549.036947] security_sctp_bind_connect+0x58/0x90
[14549.058142] __sctp_setsockopt_connectx+0x5a/0x150 [sctp]
[14549.081650] sctp_setsockopt.part.24+0x1322/0x3ce0 [sctp]
Cc: stable@vger.kernel.org
Fixes:
|
||
|---|---|---|
| .. | ||
| include | ||
| ss | ||
| .gitignore | ||
| avc.c | ||
| exports.c | ||
| hooks.c | ||
| ibpkey.c | ||
| Kconfig | ||
| Makefile | ||
| netif.c | ||
| netlabel.c | ||
| netlink.c | ||
| netnode.c | ||
| netport.c | ||
| nlmsgtab.c | ||
| selinuxfs.c | ||
| xfrm.c | ||