CVE-2026-64569None▾ SunlitIn the Linux kernel, the following vulnerability has been resolved: mpls: fix NULL deref in mpls_valid_fib_dump_req() on CONFIG_INET=n On CONFIG_INET=n builds, mpls_valid_fib_dump_req() walks the parsed attribute table itself instead o…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 2.8 · likelihood 0 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Nov 6.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
0.2%
In the Linux kernel, the following vulnerability has been resolved:
mpls: fix NULL deref in mpls_valid_fib_dump_req() on CONFIG_INET=n
On CONFIG_INET=n builds, mpls_valid_fib_dump_req() walks the parsed attribute table itself instead of calling ip_valid_fib_dump_req(). The RTA_OIF arm passes tb[RTA_OIF] to nla_get_u32() without checking it is present, so an RTM_GETROUTE dump for AF_MPLS with strict checking and no RTA_OIF hits a NULL dereference.
RTM_GETROUTE is RTNL_KIND_GET, which rtnetlink_rcv_msg() permits without CAP_NET_ADMIN, so an unprivileged user can trigger it.
Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] SMP KASAN NOPTI KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] RIP: 0010:mpls_valid_fib_dump_req (net/mpls/af_mpls.c:2189) Call Trace: mpls_dump_routes (net/mpls/af_mpls.c:2236) netlink_dump (net/netlink/af_netlink.c:2331) __netlink_dump_start (net/netlink/af_netlink.c:2446) rtnetlink_rcv_msg (net/core/rtnetlink.c:7033) netlink_rcv_skb (net/netlink/af_netlink.c:2556) netlink_unicast (net/netlink/af_netlink.c:1345) netlink_sendmsg (net/netlink/af_netlink.c:1900) __sock_sendmsg (net/socket.c:790) ____sys_sendmsg (net/socket.c:2684) ___sys_sendmsg (net/socket.c:2738) __sys_sendmsg (net/socket.c:2770) do_syscall_64 (arch/x86/entry/syscall_64.c:94) entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
Skip unset attributes, as ip_valid_fib_dump_req() does.
Linux >= 196cfebf897266c3450519e916bab9daff74e52c < bfc1cb5d6a8308e493e307f1c823d2107abc0a47Linux >= 196cfebf897266c3450519e916bab9daff74e52c < 03b5a2c29afc8e634924c75d6ee94140e70de88dLinux >= 196cfebf897266c3450519e916bab9daff74e52c < e796ce9ef4356dc7cbbaa8373843f77852f2814dLinux >= 196cfebf897266c3450519e916bab9daff74e52c < d6eee7cd078aaf9dd75efc801f6c9b608a37cd71Linux >= 196cfebf897266c3450519e916bab9daff74e52c < ad6284ced6a15e4abd57ca4d0793b7bd15ca52ceLinux >= 196cfebf897266c3450519e916bab9daff74e52c < 5f6e7b32bd1fbde10fd31a4143260735ea535b8aLinux >= 196cfebf897266c3450519e916bab9daff74e52c < 06db79411a280707c7e4bf4b221ff4e664b51502Linux >= 196cfebf897266c3450519e916bab9daff74e52c < 56d96fededd61192cd7cc8d2b0f36adfd59036c3Linux 4.20Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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