CVE-2026-64110

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{"bugzilla": {"description": "kernel: igc: fix potential skb leak in igc_fpe_xmit_smd_frame()", "id": "2502500", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2502500"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-772", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nigc: fix potential skb leak in igc_fpe_xmit_smd_frame()\nWhen igc_fpe_init_tx_descriptor() fails, no one takes care of an\nallocated skb, leaking it. [1]\nUse dev_kfree_skb_any() on failure.\nTested on an I226 adapter with the following command, while injecting\nfaults in igc_fpe_init_tx_descriptor() to trigger the error path.\n# ethtool --set-mm $DEV verify-enabled on tx-enabled on pmac-enabled on\n[1]\nunreferenced object 0xffff888113c6cdc0 (size 224):\n...\nbacktrace (crc be3d3fda):\nkmem_cache_alloc_node_noprof+0x3b1/0x410\n__alloc_skb+0xde/0x830\nigc_fpe_xmit_smd_frame.isra.0+0xad/0x1b0\nigc_fpe_send_mpacket+0x37/0x90\nethtool_mmsv_verify_timer+0x15e/0x300", "A flaw was found in the Linux kernel's `igc` driver, which handles Intel Gigabit Ethernet devices. When the `igc_fpe_init_tx_descriptor()` function fails to initialize a transmit descriptor, an allocated socket buffer (skb) is not properly released. This oversight leads to a memory leak within the kernel. Over time, repeated occurrences of this flaw could exhaust system memory, potentially leading to system instability or a denial of service."], "name": "CVE-2026-64110", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-07-19T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-64110\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-64110\nhttps://lore.kernel.org/linux-cve-announce/2026071922-CVE-2026-64110-4d45@gregkh/T"], "threat_severity": "Low"}

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