{"id":"DEBIAN-CVE-2024-50083","details":"In the Linux kernel, the following vulnerability has been resolved:  tcp: fix mptcp DSS corruption due to large pmtu xmit  Syzkaller was able to trigger a DSS corruption:    TCP: request_sock_subflow_v4: Possible SYN flooding on port [::]:20002. Sending cookies.   ------------[ cut here ]------------   WARNING: CPU: 0 PID: 5227 at net/mptcp/protocol.c:695 __mptcp_move_skbs_from_subflow+0x20a9/0x21f0 net/mptcp/protocol.c:695   Modules linked in:   CPU: 0 UID: 0 PID: 5227 Comm: syz-executor350 Not tainted 6.11.0-syzkaller-08829-gaf9c191ac2a0 #0   Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024   RIP: 0010:__mptcp_move_skbs_from_subflow+0x20a9/0x21f0 net/mptcp/protocol.c:695   Code: 0f b6 dc 31 ff 89 de e8 b5 dd ea f5 89 d8 48 81 c4 50 01 00 00 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc e8 98 da ea f5 90 \u003c0f\u003e 0b 90 e9 47 ff ff ff e8 8a da ea f5 90 0f 0b 90 e9 99 e0 ff ff   RSP: 0018:ffffc90000006db8 EFLAGS: 00010246   RAX: ffffffff8ba9df18 RBX: 00000000000055f0 RCX: ffff888030023c00   RDX: 0000000000000100 RSI: 00000000000081e5 RDI: 00000000000055f0   RBP: 1ffff110062bf1ae R08: ffffffff8ba9cf12 R09: 1ffff110062bf1b8   R10: dffffc0000000000 R11: ffffed10062bf1b9 R12: 0000000000000000   R13: dffffc0000000000 R14: 00000000700cec61 R15: 00000000000081e5   FS:  000055556679c380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000   CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033   CR2: 0000000020287000 CR3: 0000000077892000 CR4: 00000000003506f0   DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000   DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400   Call Trace:    \u003cIRQ\u003e    move_skbs_to_msk net/mptcp/protocol.c:811 [inline]    mptcp_data_ready+0x29c/0xa90 net/mptcp/protocol.c:854    subflow_data_ready+0x34a/0x920 net/mptcp/subflow.c:1490    tcp_data_queue+0x20fd/0x76c0 net/ipv4/tcp_input.c:5283    tcp_rcv_established+0xfba/0x2020 net/ipv4/tcp_input.c:6237    tcp_v4_do_rcv+0x96d/0xc70 net/ipv4/tcp_ipv4.c:1915    tcp_v4_rcv+0x2dc0/0x37f0 net/ipv4/tcp_ipv4.c:2350    ip_protocol_deliver_rcu+0x22e/0x440 net/ipv4/ip_input.c:205    ip_local_deliver_finish+0x341/0x5f0 net/ipv4/ip_input.c:233    NF_HOOK+0x3a4/0x450 include/linux/netfilter.h:314    NF_HOOK+0x3a4/0x450 include/linux/netfilter.h:314    __netif_receive_skb_one_core net/core/dev.c:5662 [inline]    __netif_receive_skb+0x2bf/0x650 net/core/dev.c:5775    process_backlog+0x662/0x15b0 net/core/dev.c:6107    __napi_poll+0xcb/0x490 net/core/dev.c:6771    napi_poll net/core/dev.c:6840 [inline]    net_rx_action+0x89b/0x1240 net/core/dev.c:6962    handle_softirqs+0x2c5/0x980 kernel/softirq.c:554    do_softirq+0x11b/0x1e0 kernel/softirq.c:455    \u003c/IRQ\u003e    \u003cTASK\u003e    __local_bh_enable_ip+0x1bb/0x200 kernel/softirq.c:382    local_bh_enable include/linux/bottom_half.h:33 [inline]    rcu_read_unlock_bh include/linux/rcupdate.h:919 [inline]    __dev_queue_xmit+0x1764/0x3e80 net/core/dev.c:4451    dev_queue_xmit include/linux/netdevice.h:3094 [inline]    neigh_hh_output include/net/neighbour.h:526 [inline]    neigh_output include/net/neighbour.h:540 [inline]    ip_finish_output2+0xd41/0x1390 net/ipv4/ip_output.c:236    ip_local_out net/ipv4/ip_output.c:130 [inline]    __ip_queue_xmit+0x118c/0x1b80 net/ipv4/ip_output.c:536    __tcp_transmit_skb+0x2544/0x3b30 net/ipv4/tcp_output.c:1466    tcp_transmit_skb net/ipv4/tcp_output.c:1484 [inline]    tcp_mtu_probe net/ipv4/tcp_output.c:2547 [inline]    tcp_write_xmit+0x641d/0x6bf0 net/ipv4/tcp_output.c:2752    __tcp_push_pending_frames+0x9b/0x360 net/ipv4/tcp_output.c:3015    tcp_push_pending_frames include/net/tcp.h:2107 [inline]    tcp_data_snd_check net/ipv4/tcp_input.c:5714 [inline]    tcp_rcv_established+0x1026/0x2020 net/ipv4/tcp_input.c:6239    tcp_v4_do_rcv+0x96d/0xc70 net/ipv4/tcp_ipv4.c:1915    sk_backlog_rcv include/net/sock.h:1113 [inline]    __release_sock+0x214/0x350 net/core/sock.c:3072    release_sock+0x61/0x1f0 net/core/sock.c:3626    mptcp_push_ ---truncated---","modified":"2026-09-15T09:03:15.449883852Z","published":"2024-10-29T01:15:05.240Z","upstream":["CVE-2024-50083"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2024-50083"}],"affected":[{"package":{"name":"linux","ecosystem":"Debian:12","purl":"pkg:deb/debian/linux?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.1.115-1"}]}],"versions":["6.1.106-1","6.1.106-2","6.1.106-3","6.1.112-1","6.1.27-1","6.1.37-1","6.1.38-1","6.1.38-2","6.1.38-2~bpo11+1","6.1.38-3","6.1.38-4","6.1.38-4~bpo11+1","6.1.52-1","6.1.55-1","6.1.55-1~bpo11+1","6.1.64-1","6.1.66-1","6.1.67-1","6.1.69-1","6.1.69-1~bpo11+1","6.1.76-1","6.1.76-1~bpo11+1","6.1.82-1","6.1.85-1","6.1.90-1","6.1.90-1~bpo11+1","6.1.94-1","6.1.94-1~bpo11+1","6.1.98-1","6.1.99-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2024-50083.json"}},{"package":{"name":"linux","ecosystem":"Debian:13","purl":"pkg:deb/debian/linux?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.11.5-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2024-50083.json"}},{"package":{"name":"linux","ecosystem":"Debian:14","purl":"pkg:deb/debian/linux?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.11.5-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2024-50083.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}