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BUG: KMSAN: uninit-value in nf_flow_offload_inet_hook+0x7e4/0x940 net/netfilter/nf_flow_table_inet.c:27 nf_flow_offload_inet_hook+0x7e4/0x940 net/netfilter/nf_flow_table_inet.c:27 nf_hook_entry_hookfn include/linux/netfilter.h:157 [inline] nf_hook_slow+0xe1/0x3d0 net/netfilter/core.c:623 nf_hook_ingress include/linux/netfilter_netdev.h:34 [inline] nf_ingress net/core/dev.c:5742 [inline] __netif_receive_skb_core+0x4aff/0x70c0 net/core/dev.c:5837 __netif_receive_skb_one_core net/core/dev.c:5975 [inline] __netif_receive_skb+0xcc/0xac0 net/core/dev.c:6090 netif_receive_skb_internal net/core/dev.c:6176 [inline] netif_receive_skb+0x57/0x630 net/core/dev.c:6235 tun_rx_batched+0x1df/0x980 drivers/net/tun.c:1485 tun_get_user+0x4ee0/0x6b40 drivers/net/tun.c:1938 tun_chr_write_iter+0x3e9/0x5c0 drivers/net/tun.c:1984 new_sync_write fs/read_write.c:593 [inline] vfs_write+0xb4b/0x1580 fs/read_write.c:686 ksys_write fs/read_write.c:738 [inline] __do_sys_write fs/read_write.c:749 [inline]\n"}], "id": "CVE-2025-38441", "lastModified": "2025-12-22T21:55:57.657", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2025-07-25T16:15:29.497", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/18cdb3d982da8976b28d57691eb256ec5688fad2"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/9fbc49429a23b02595ba82536c5ea425fdabb221"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/a3aea97d55964e70a1e6426aa4cafdc036e8a2dd"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/cfbf0665969af2c69d10c377d4c3d306e717efb4"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/e0dd2e9729660f3f4fcb16e0aef87342911528ef"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/eed8960b289327235185b7c32649c3470a3e969b"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-908"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: netfilter: flowtable: account for Ethernet header in nf_flow_pppoe_proto()", "id": "2383478", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2383478"}, "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"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nnetfilter: flowtable: account for Ethernet header in nf_flow_pppoe_proto()\nsyzbot found a potential access to uninit-value in nf_flow_pppoe_proto()\nBlamed commit forgot the Ethernet header.\nBUG: KMSAN: uninit-value in nf_flow_offload_inet_hook+0x7e4/0x940 net/netfilter/nf_flow_table_inet.c:27\nnf_flow_offload_inet_hook+0x7e4/0x940 net/netfilter/nf_flow_table_inet.c:27\nnf_hook_entry_hookfn include/linux/netfilter.h:157 [inline]\nnf_hook_slow+0xe1/0x3d0 net/netfilter/core.c:623\nnf_hook_ingress include/linux/netfilter_netdev.h:34 [inline]\nnf_ingress net/core/dev.c:5742 [inline]\n__netif_receive_skb_core+0x4aff/0x70c0 net/core/dev.c:5837\n__netif_receive_skb_one_core net/core/dev.c:5975 [inline]\n__netif_receive_skb+0xcc/0xac0 net/core/dev.c:6090\nnetif_receive_skb_internal net/core/dev.c:6176 [inline]\nnetif_receive_skb+0x57/0x630 net/core/dev.c:6235\ntun_rx_batched+0x1df/0x980 drivers/net/tun.c:1485\ntun_get_user+0x4ee0/0x6b40 drivers/net/tun.c:1938\ntun_chr_write_iter+0x3e9/0x5c0 drivers/net/tun.c:1984\nnew_sync_write fs/read_write.c:593 [inline]\nvfs_write+0xb4b/0x1580 fs/read_write.c:686\nksys_write fs/read_write.c:738 [inline]\n__do_sys_write fs/read_write.c:749 [inline]"], "name": "CVE-2025-38441", "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": "2025-07-25T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-38441\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-38441\nhttps://lore.kernel.org/linux-cve-announce/2025072502-CVE-2025-38441-bb71@gregkh/T"], "threat_severity": "Low"}

{"created": "2025-07-26T11:21:59.829832+00:00", "updated": "2025-07-26T11:21:59.829893+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}