In the Linux kernel, the following vulnerability has been resolved: ipv4: free inet_opt and ireq_opt after an RCU grace period tcp_v4_syn_recv_sock()…
In the Linux kernel, the following vulnerability has been resolved: ipv4: free inet_opt and ireq_opt after an RCU grace period tcp_v4_syn_recv_sock() transfers ownership of ireq->ireq_opt to the child socket (newinet->inet_opt) without copying it. Another cpu can concurrently process a retransmitted SYN for the same request socket, and send a SYNACK from tcp_check_req(). tcp_v4_send_synack() and inet_csk_route_req() read ireq->ireq_opt under rcu_read_lock() only, and ip_build_and_send_pkt() and ip_options_build() then read opt->optlen twice. Note that the SYNACK timer itself is not an issu
Read at NIST National Vulnerability Database (CVE API 2.0)
- Vendor
- Linux kernel
- Product
- Linux kernel
- EPSS
- 0.004 (p39)
- Fix
- available
- Exposure class
- Operating system
Why it ranks 28 (Notable)
- Product class: operating system
- Widely deployed vendor product (Linux kernel)
- Covered by 3 independent sources
- Fix available
- Recency: items published within 24 hours gain 15, within 72 hours 6, within 7 days 2.
Links
- NIST National Vulnerability Database (CVE API 2.0) (nvd.nist.gov)
- CVE-2026-98432 on this site · NVD · CVE.org · Vulnpedia
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