CVE-2026-68322rds: Fix inet6_addr_lst NULL dereference when IPv6 is disabled
- —Not scoredno CVSS score yet
- 0.22%Exploitation in 30 daysEPSS · top 88% 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: rds: Fix inet6_addr_lst NULL dereference when IPv6 is disabled When booting with the 'ipv6.disable=1' parameter, inet6_addr_lst is never initialized because inet6_init() exits before addrconf_init() is called to initialize it. An attempt to bind an RDS socket to an ipv6 address results in a crash in __ipv6_chk_addr_and_flags() KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f] RIP: 0010:__ipv6_chk_addr_and_flags+0x1df/0x7e0 Call Trace: <TASK> ipv6_chk_addr+0x3b/0x50 rds_tcp_laddr_check+0x155/0x3b0 [rds_tcp] rds_trans_get_preferred+0x15d/0x2d0 [rds] ? trace_hardirqs_on+0x2d/0x110 rds_bind+0x1433/0x1d60 [rds] ? rds_remove_bound+0xd50/0xd50 [rds] ? aa_af_perm+0x250/0x250 ? __might_fault+0xde/0x190 ? __sys_bind+0x1dc/0x210 __sys_bind+0x1dc/0x210 ? __ia32_sys_socketpair+0x100/0x100 ? restore_fpregs_from_fpstate+0x53/0x100 __x64_sys_bind+0x73/0xb0 ? syscall_enter_from_user_mode+0x1c/0x50 do_syscall_64+0x34/0x80 entry_SYSCALL_64_after_hwframe+0x6e/0xd8 RIP: 0033:0x7f47f8269ea9 </TASK> The following code reproduces the issue: struct sockaddr_in6 addr; s = socket(PF_RDS, SOCK_SEQPACKET, 0); memset(&addr, 0, sizeof(addr)); inet_pton(AF_INET6, ADDRESS, &addr.sin6_addr); addr.sin6_family = AF_INET6; addr.sin6_port = htons(PORT); bind(s, &addr, sizeof(addr)); Found by InfoTeCS on behalf of Linux Verification Center (linuxtesting.org) with Syzkaller.
Timeline
ID reserved
By Linux
- 11 days later
· 11 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: Received.
- EPSS (exploitation in 30 days)
- 0.22% · top 88% 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 eee2fa6ab3225192d6d894c54a6fb02ac9efdff6 – < 7809344be3f0c1bbfdfdde1cefafeec14bf52d51
- affected eee2fa6ab3225192d6d894c54a6fb02ac9efdff6 – < 438dec9b0a06bd1f8db8c58539c655e735e17367
- affected eee2fa6ab3225192d6d894c54a6fb02ac9efdff6 – < b61c9eb5931bb7389bc104faacd8c17d910da65d
- affected eee2fa6ab3225192d6d894c54a6fb02ac9efdff6 – < 8e48d7ab1e01936a172ff31531904b003895fd8c
- affected eee2fa6ab3225192d6d894c54a6fb02ac9efdff6 – < a8302e758050e6a922765aee8d220a4fd350f52d
- affected eee2fa6ab3225192d6d894c54a6fb02ac9efdff6 – < f6787fdffcae5490c779f0f3f33b11597525d1ae
- affected eee2fa6ab3225192d6d894c54a6fb02ac9efdff6 – < 00d5707217b5972554898ff734ae7b71bce704e6
- affected eee2fa6ab3225192d6d894c54a6fb02ac9efdff6 – < 9c805e592a29be9e4e61ff1bd567da04aa8fd6f9
- affected 4.19
- unaffected < 4.19
- unaffected 5.10.265 – ≤ 5.10.*
- unaffected 5.15.216 – ≤ 5.15.*
- unaffected 6.1.183 – ≤ 6.1.*
- unaffected 6.6.151 – ≤ 6.6.*
- unaffected 6.12.103 – ≤ 6.12.*
- unaffected 6.18.44 – ≤ 6.18.*
- unaffected 7.1.6 – ≤ 7.1.*
- unaffected 7.2 – ≤ *
References
References8
- https://git.kernel.org/stable/c/7809344be3f0c1bbfdfdde1cefafeec14bf52d51 (opens in a new tab)
- https://git.kernel.org/stable/c/438dec9b0a06bd1f8db8c58539c655e735e17367 (opens in a new tab)
- https://git.kernel.org/stable/c/b61c9eb5931bb7389bc104faacd8c17d910da65d (opens in a new tab)
- https://git.kernel.org/stable/c/8e48d7ab1e01936a172ff31531904b003895fd8c (opens in a new tab)
- https://git.kernel.org/stable/c/a8302e758050e6a922765aee8d220a4fd350f52d (opens in a new tab)
- https://git.kernel.org/stable/c/f6787fdffcae5490c779f0f3f33b11597525d1ae (opens in a new tab)
- https://git.kernel.org/stable/c/00d5707217b5972554898ff734ae7b71bce704e6 (opens in a new tab)
- https://git.kernel.org/stable/c/9c805e592a29be9e4e61ff1bd567da04aa8fd6f9 (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-2026-55423 (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)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-68322)Record last updated .