{"id":"DEBIAN-CVE-2023-53462","details":"In the Linux kernel, the following vulnerability has been resolved:  hsr: Fix uninit-value access in fill_frame_info()  Syzbot reports the following uninit-value access problem.  ===================================================== BUG: KMSAN: uninit-value in fill_frame_info net/hsr/hsr_forward.c:601 [inline] BUG: KMSAN: uninit-value in hsr_forward_skb+0x9bd/0x30f0 net/hsr/hsr_forward.c:616  fill_frame_info net/hsr/hsr_forward.c:601 [inline]  hsr_forward_skb+0x9bd/0x30f0 net/hsr/hsr_forward.c:616  hsr_dev_xmit+0x192/0x330 net/hsr/hsr_device.c:223  __netdev_start_xmit include/linux/netdevice.h:4889 [inline]  netdev_start_xmit include/linux/netdevice.h:4903 [inline]  xmit_one net/core/dev.c:3544 [inline]  dev_hard_start_xmit+0x247/0xa10 net/core/dev.c:3560  __dev_queue_xmit+0x34d0/0x52a0 net/core/dev.c:4340  dev_queue_xmit include/linux/netdevice.h:3082 [inline]  packet_xmit+0x9c/0x6b0 net/packet/af_packet.c:276  packet_snd net/packet/af_packet.c:3087 [inline]  packet_sendmsg+0x8b1d/0x9f30 net/packet/af_packet.c:3119  sock_sendmsg_nosec net/socket.c:730 [inline]  sock_sendmsg net/socket.c:753 [inline]  __sys_sendto+0x781/0xa30 net/socket.c:2176  __do_sys_sendto net/socket.c:2188 [inline]  __se_sys_sendto net/socket.c:2184 [inline]  __ia32_sys_sendto+0x11f/0x1c0 net/socket.c:2184  do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline]  __do_fast_syscall_32+0xa2/0x100 arch/x86/entry/common.c:178  do_fast_syscall_32+0x37/0x80 arch/x86/entry/common.c:203  do_SYSENTER_32+0x1f/0x30 arch/x86/entry/common.c:246  entry_SYSENTER_compat_after_hwframe+0x70/0x82  Uninit was created at:  slab_post_alloc_hook+0x12f/0xb70 mm/slab.h:767  slab_alloc_node mm/slub.c:3478 [inline]  kmem_cache_alloc_node+0x577/0xa80 mm/slub.c:3523  kmalloc_reserve+0x148/0x470 net/core/skbuff.c:559  __alloc_skb+0x318/0x740 net/core/skbuff.c:644  alloc_skb include/linux/skbuff.h:1286 [inline]  alloc_skb_with_frags+0xc8/0xbd0 net/core/skbuff.c:6299  sock_alloc_send_pskb+0xa80/0xbf0 net/core/sock.c:2794  packet_alloc_skb net/packet/af_packet.c:2936 [inline]  packet_snd net/packet/af_packet.c:3030 [inline]  packet_sendmsg+0x70e8/0x9f30 net/packet/af_packet.c:3119  sock_sendmsg_nosec net/socket.c:730 [inline]  sock_sendmsg net/socket.c:753 [inline]  __sys_sendto+0x781/0xa30 net/socket.c:2176  __do_sys_sendto net/socket.c:2188 [inline]  __se_sys_sendto net/socket.c:2184 [inline]  __ia32_sys_sendto+0x11f/0x1c0 net/socket.c:2184  do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline]  __do_fast_syscall_32+0xa2/0x100 arch/x86/entry/common.c:178  do_fast_syscall_32+0x37/0x80 arch/x86/entry/common.c:203  do_SYSENTER_32+0x1f/0x30 arch/x86/entry/common.c:246  entry_SYSENTER_compat_after_hwframe+0x70/0x82  It is because VLAN not yet supported in hsr driver. Return error when protocol is ETH_P_8021Q in fill_frame_info() now to fix it.","modified":"2026-09-15T09:02:51.181418968Z","published":"2025-10-01T12:15:47.887Z","upstream":["CVE-2023-53462"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2023-53462"}],"affected":[{"package":{"name":"linux","ecosystem":"Debian:12","purl":"pkg:deb/debian/linux?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.1.55-1"}]}],"versions":["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~bpo11+1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2023-53462.json"}},{"package":{"name":"linux","ecosystem":"Debian:13","purl":"pkg:deb/debian/linux?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.5.6-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2023-53462.json"}},{"package":{"name":"linux","ecosystem":"Debian:14","purl":"pkg:deb/debian/linux?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.5.6-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2023-53462.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"}]}