{"id":"DEBIAN-CVE-2024-56648","details":"In the Linux kernel, the following vulnerability has been resolved:  net: hsr: avoid potential out-of-bound access in fill_frame_info()  syzbot is able to feed a packet with 14 bytes, pretending it is a vlan one.  Since fill_frame_info() is relying on skb-\u003emac_len already, extend the check to cover this case.  BUG: KMSAN: uninit-value in fill_frame_info net/hsr/hsr_forward.c:709 [inline]  BUG: KMSAN: uninit-value in hsr_forward_skb+0x9ee/0x3b10 net/hsr/hsr_forward.c:724   fill_frame_info net/hsr/hsr_forward.c:709 [inline]   hsr_forward_skb+0x9ee/0x3b10 net/hsr/hsr_forward.c:724   hsr_dev_xmit+0x2f0/0x350 net/hsr/hsr_device.c:235   __netdev_start_xmit include/linux/netdevice.h:5002 [inline]   netdev_start_xmit include/linux/netdevice.h:5011 [inline]   xmit_one net/core/dev.c:3590 [inline]   dev_hard_start_xmit+0x247/0xa20 net/core/dev.c:3606   __dev_queue_xmit+0x366a/0x57d0 net/core/dev.c:4434   dev_queue_xmit include/linux/netdevice.h:3168 [inline]   packet_xmit+0x9c/0x6c0 net/packet/af_packet.c:276   packet_snd net/packet/af_packet.c:3146 [inline]   packet_sendmsg+0x91ae/0xa6f0 net/packet/af_packet.c:3178   sock_sendmsg_nosec net/socket.c:711 [inline]   __sock_sendmsg+0x30f/0x380 net/socket.c:726   __sys_sendto+0x594/0x750 net/socket.c:2197   __do_sys_sendto net/socket.c:2204 [inline]   __se_sys_sendto net/socket.c:2200 [inline]   __x64_sys_sendto+0x125/0x1d0 net/socket.c:2200   x64_sys_call+0x346a/0x3c30 arch/x86/include/generated/asm/syscalls_64.h:45   do_syscall_x64 arch/x86/entry/common.c:52 [inline]   do_syscall_64+0xcd/0x1e0 arch/x86/entry/common.c:83  entry_SYSCALL_64_after_hwframe+0x77/0x7f  Uninit was created at:   slab_post_alloc_hook mm/slub.c:4091 [inline]   slab_alloc_node mm/slub.c:4134 [inline]   kmem_cache_alloc_node_noprof+0x6bf/0xb80 mm/slub.c:4186   kmalloc_reserve+0x13d/0x4a0 net/core/skbuff.c:587   __alloc_skb+0x363/0x7b0 net/core/skbuff.c:678   alloc_skb include/linux/skbuff.h:1323 [inline]   alloc_skb_with_frags+0xc8/0xd00 net/core/skbuff.c:6612   sock_alloc_send_pskb+0xa81/0xbf0 net/core/sock.c:2881   packet_alloc_skb net/packet/af_packet.c:2995 [inline]   packet_snd net/packet/af_packet.c:3089 [inline]   packet_sendmsg+0x74c6/0xa6f0 net/packet/af_packet.c:3178   sock_sendmsg_nosec net/socket.c:711 [inline]   __sock_sendmsg+0x30f/0x380 net/socket.c:726   __sys_sendto+0x594/0x750 net/socket.c:2197   __do_sys_sendto net/socket.c:2204 [inline]   __se_sys_sendto net/socket.c:2200 [inline]   __x64_sys_sendto+0x125/0x1d0 net/socket.c:2200   x64_sys_call+0x346a/0x3c30 arch/x86/include/generated/asm/syscalls_64.h:45   do_syscall_x64 arch/x86/entry/common.c:52 [inline]   do_syscall_64+0xcd/0x1e0 arch/x86/entry/common.c:83  entry_SYSCALL_64_after_hwframe+0x77/0x7f","modified":"2026-09-15T09:03:00.139658002Z","published":"2024-12-27T15:15:24.570Z","upstream":["CVE-2024-56648"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2024-56648"}],"affected":[{"package":{"name":"linux","ecosystem":"Debian:12","purl":"pkg:deb/debian/linux?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.1.123-1"}]}],"versions":["6.1.106-1","6.1.106-2","6.1.106-3","6.1.112-1","6.1.115-1","6.1.119-1","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-2024-56648.json"}},{"package":{"name":"linux","ecosystem":"Debian:13","purl":"pkg:deb/debian/linux?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.12.5-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2024-56648.json"}},{"package":{"name":"linux","ecosystem":"Debian:14","purl":"pkg:deb/debian/linux?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.12.5-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2024-56648.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}