{
  "affected": [
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:13",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:14",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "7.2.9-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "In the Linux kernel, the following vulnerability has been resolved:  bpf: Reject dev-bound-only programs on other devices  __bpf_offload_dev_match() falls back to comparing offdev pointers after an exact netdev mismatch. Bound-only programs normally have NULL offdevs, so unrelated netdevs compare equal. A bound-only program on an offload-registered netdev can instead inherit a real offdev and match a sibling port. With CAP_BPF and CAP_NET_ADMIN, a caller can use bpf(BPF_LINK_CREATE) with a different target ifindex to run metadata kfuncs specialized for the bound driver on the target driver's xdp_buff. Running a veth-bound program on tun reads beyond tun's bare stack xdp_buff as a veth_xdp_buff.    Oops: general protection fault, probably for non-canonical address   KASAN: null-ptr-deref in range [0x0000000000000010-0x0000000000000017]   RIP: 0010:veth_xdp_rx_timestamp (drivers/net/veth.c:1673)   Call Trace:    ...    tun_build_skb (drivers/net/tun.c:1739)    tun_get_user (drivers/net/tun.c:1856)    tun_chr_write_iter (drivers/net/tun.c:2091)    vfs_write (fs/read_write.c:595 fs/read_write.c:687)    ksys_write (fs/read_write.c:739)    do_syscall_64 (arch/x86/entry/syscall_64.c:84)    entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)   Kernel panic - not syncing: Fatal exception in interrupt  Restrict non-offloaded programs to exact netdev matches and retain the shared-offdev fallback only for genuinely offloaded multi-port programs.",
  "id": "DEBIAN-CVE-2026-98382",
  "modified": "2026-10-10T04:47:38.577152191Z",
  "published": "2026-10-09T08:16:56.680Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://security-tracker.debian.org/tracker/CVE-2026-98382"
    }
  ],
  "upstream": [
    "CVE-2026-98382"
  ]
}