CVE-2026-64569mpls: fix NULL deref in mpls_valid_fib_dump_req() on CONFIG_INET=n
- —Not scoredno CVSS score yet
- 0.21%Exploitation in 30 daysEPSS · top 89% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
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.
Timeline
ID reserved
By Linux
- 17 days later
· 17 days later
Published
- 3 months later
· 3 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Awaiting Analysis.
- EPSS (exploitation in 30 days)
- 0.21% · top 89% of all CVEs (15 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected 196cfebf897266c3450519e916bab9daff74e52c – < bfc1cb5d6a8308e493e307f1c823d2107abc0a47
- affected 196cfebf897266c3450519e916bab9daff74e52c – < 03b5a2c29afc8e634924c75d6ee94140e70de88d
- affected 196cfebf897266c3450519e916bab9daff74e52c – < e796ce9ef4356dc7cbbaa8373843f77852f2814d
- affected 196cfebf897266c3450519e916bab9daff74e52c – < d6eee7cd078aaf9dd75efc801f6c9b608a37cd71
- affected 196cfebf897266c3450519e916bab9daff74e52c – < ad6284ced6a15e4abd57ca4d0793b7bd15ca52ce
- affected 196cfebf897266c3450519e916bab9daff74e52c – < 5f6e7b32bd1fbde10fd31a4143260735ea535b8a
- affected 196cfebf897266c3450519e916bab9daff74e52c – < 06db79411a280707c7e4bf4b221ff4e664b51502
- affected 196cfebf897266c3450519e916bab9daff74e52c – < 56d96fededd61192cd7cc8d2b0f36adfd59036c3
- affected 4.20
- unaffected < 4.20
- unaffected 5.10.265 – ≤ 5.10.*
- unaffected 5.15.216 – ≤ 5.15.*
- unaffected 6.1.183 – ≤ 6.1.*
- unaffected 6.6.148 – ≤ 6.6.*
- unaffected 6.12.101 – ≤ 6.12.*
- unaffected 6.18.42 – ≤ 6.18.*
- unaffected 7.1.6 – ≤ 7.1.*
- unaffected 7.2 – ≤ *
References
References8
- https://git.kernel.org/stable/c/bfc1cb5d6a8308e493e307f1c823d2107abc0a47 (opens in a new tab)
- https://git.kernel.org/stable/c/03b5a2c29afc8e634924c75d6ee94140e70de88d (opens in a new tab)
- https://git.kernel.org/stable/c/e796ce9ef4356dc7cbbaa8373843f77852f2814d (opens in a new tab)
- https://git.kernel.org/stable/c/d6eee7cd078aaf9dd75efc801f6c9b608a37cd71 (opens in a new tab)
- https://git.kernel.org/stable/c/ad6284ced6a15e4abd57ca4d0793b7bd15ca52ce (opens in a new tab)
- https://git.kernel.org/stable/c/5f6e7b32bd1fbde10fd31a4143260735ea535b8a (opens in a new tab)
- https://git.kernel.org/stable/c/06db79411a280707c7e4bf4b221ff4e664b51502 (opens in a new tab)
- https://git.kernel.org/stable/c/56d96fededd61192cd7cc8d2b0f36adfd59036c3 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-53263 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
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[](https://cveledger.app/cve/CVE-2026-64569)Record last updated .