Red Hat Linux Security Advisories & CVEs
5466 advisories tracked · Red Hat Security Data API · direct feeds checked every minute; rate-limited backstops use a safe source cadence
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Security advisories for your Linux release
Pick your distribution release to see every advisory issued for it and its severity mix. Fixes ship as errata — keep the system patched. This is the release's advisory history, not a per-package scan.
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Red Hat Security Data API
Red Hat Enterprise Linux errata (RHSA) via the official Red Hat Security Data API — CVE severity, CVSS and affected packages. A credential-free official source.
Latest Linux advisories
Medium [CVE-2026-64005] Do not re-initialize smc hashtables
Do not re-initialize smc hashtables. Red Hat rates this moderate (CVSS 5.5). Weakness: CWE-237.
Medium [CVE-2026-63982] Fix ethx:ingress -> ethy:egress -> ethx:ingress mirred loop
Fix ethx:ingress -> ethy:egress -> ethx:ingress mirred loop. Red Hat rates this low (CVSS 5.5). Weakness: CWE-835.
Medium [CVE-2026-64012] Replace direct dequeue call with peek and qdisc_dequeue_peeked
Replace direct dequeue call with peek and qdisc_dequeue_peeked. Red Hat rates this moderate (CVSS 5.5). Weakness: CWE-476.
Medium [CVE-2026-63983] fix packet loop on netem when duplicate is on
fix packet loop on netem when duplicate is on. Red Hat rates this moderate (CVSS 5.5). Weakness: CWE-835.
Medium [CVE-2026-63995] validate start_cmd_payload_size from module
validate start_cmd_payload_size from module. Red Hat rates this moderate (CVSS 5.5). Weakness: CWE-787.
Medium [CVE-2026-63977] use __dpll_device_change_ntf and remove change_work
use __dpll_device_change_ntf() and remove change_work. Red Hat rates this moderate (CVSS 5.5). Weakness: CWE-476.
Medium [CVE-2026-63969] fix possible infinite loop in rt6_fill_node
fix possible infinite loop in rt6_fill_node(). Red Hat rates this moderate (CVSS 5.5). Weakness: CWE-835.
Medium [CVE-2026-64013] Fix ACPI GPE handler leak during removal
Fix ACPI GPE handler leak during removal. Red Hat rates this moderate (CVSS 5.5). Weakness: CWE-772.
Medium [CVE-2026-64021] Fix exec_queue leak on width check in stream open
Fix exec_queue leak on width check in stream open. Red Hat rates this low (CVSS 5.5). Weakness: CWE-772.
Medium [CVE-2026-63991] check skb_clone return value in send_mcast_pkt
check skb_clone() return value in send_mcast_pkt(). Red Hat rates this low (CVSS 5.5). Weakness: CWE-476.
Unknown [CVE-2026-64095] avoid double decrement of bla.num_requests
avoid double decrement of bla.num_requests. Red Hat rates this a security issue. Weakness: CWE-367.
Unknown [CVE-2026-64140] fix null pointer dereference in proc_show_files
fix null pointer dereference in proc_show_files(). Red Hat rates this a security issue. Weakness: CWE-476.
Unknown [CVE-2026-64165] Fix early initialization
Fix early initialization. Red Hat rates this a security issue. Weakness: CWE-476.
Unknown [CVE-2026-64044] respect peer refcount in CMD_NEW_PEER error path
respect peer refcount in CMD_NEW_PEER error path. Red Hat rates this a security issue. Weakness: CWE-825.
Unknown [CVE-2026-64108] Fix busy dentry used after unmounting
Fix busy dentry used after unmounting. Red Hat rates this a security issue. Weakness: CWE-911.
Unknown [CVE-2026-64139] fix SID memory leak in set_posix_acl_entries_dacl on overflow
fix SID memory leak in set_posix_acl_entries_dacl() on overflow. Red Hat rates this a security issue. Weakness: CWE-772.
Unknown [CVE-2026-64091] fix TOCTOU race for reported vlans
fix TOCTOU race for reported vlans. Red Hat rates this a security issue. Weakness: CWE-367.
Unknown [CVE-2026-64043] fix race between deleting interface and adding new peer
fix race between deleting interface and adding new peer. Red Hat rates this a security issue. Weakness: CWE-413.
Unknown [CVE-2026-64129] fix spinlock leak in migrate_vma_insert_huge_pmd_page
fix spinlock leak in migrate_vma_insert_huge_pmd_page. Red Hat rates this a security issue. Weakness: CWE-772.
Unknown [CVE-2026-64104] Explicitly leak pages in unknown state
Explicitly leak pages in unknown state. Red Hat rates this a security issue. Weakness: CWE-212.