CVE-2024-50299

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> sctp: properly validate chunk size in sctp_sf_ootb()<br /> <br /> A size validation fix similar to that in Commit 50619dbf8db7 ("sctp: add<br /> size validation when walking chunks") is also required in sctp_sf_ootb()<br /> to address a crash reported by syzbot:<br /> <br /> BUG: KMSAN: uninit-value in sctp_sf_ootb+0x7f5/0xce0 net/sctp/sm_statefuns.c:3712<br /> sctp_sf_ootb+0x7f5/0xce0 net/sctp/sm_statefuns.c:3712<br /> sctp_do_sm+0x181/0x93d0 net/sctp/sm_sideeffect.c:1166<br /> sctp_endpoint_bh_rcv+0xc38/0xf90 net/sctp/endpointola.c:407<br /> sctp_inq_push+0x2ef/0x380 net/sctp/inqueue.c:88<br /> sctp_rcv+0x3831/0x3b20 net/sctp/input.c:243<br /> sctp4_rcv+0x42/0x50 net/sctp/protocol.c:1159<br /> ip_protocol_deliver_rcu+0xb51/0x13d0 net/ipv4/ip_input.c:205<br /> ip_local_deliver_finish+0x336/0x500 net/ipv4/ip_input.c:233