{"id":"CVE-2022-49066","summary":"veth: Ensure eth header is in skb's linear part","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nveth: Ensure eth header is in skb's linear part\n\nAfter feeding a decapsulated packet to a veth device with act_mirred,\nskb_headlen() may be 0. But veth_xmit() calls __dev_forward_skb(),\nwhich expects at least ETH_HLEN byte of linear data (as\n__dev_forward_skb2() calls eth_type_trans(), which pulls ETH_HLEN bytes\nunconditionally).\n\nUse pskb_may_pull() to ensure veth_xmit() respects this constraint.\n\nkernel BUG at include/linux/skbuff.h:2328!\nRIP: 0010:eth_type_trans+0xcf/0x140\nCall Trace:\n \u003cIRQ\u003e\n __dev_forward_skb2+0xe3/0x160\n veth_xmit+0x6e/0x250 [veth]\n dev_hard_start_xmit+0xc7/0x200\n __dev_queue_xmit+0x47f/0x520\n ? skb_ensure_writable+0x85/0xa0\n ? skb_mpls_pop+0x98/0x1c0\n tcf_mirred_act+0x442/0x47e [act_mirred]\n tcf_action_exec+0x86/0x140\n fl_classify+0x1d8/0x1e0 [cls_flower]\n ? dma_pte_clear_level+0x129/0x1a0\n ? dma_pte_clear_level+0x129/0x1a0\n ? prb_fill_curr_block+0x2f/0xc0\n ? skb_copy_bits+0x11a/0x220\n __tcf_classify+0x58/0x110\n tcf_classify_ingress+0x6b/0x140\n __netif_receive_skb_core.constprop.0+0x47d/0xfd0\n ? __iommu_dma_unmap_swiotlb+0x44/0x90\n __netif_receive_skb_one_core+0x3d/0xa0\n netif_receive_skb+0x116/0x170\n be_process_rx+0x22f/0x330 [be2net]\n be_poll+0x13c/0x370 [be2net]\n __napi_poll+0x2a/0x170\n net_rx_action+0x22f/0x2f0\n __do_softirq+0xca/0x2a8\n __irq_exit_rcu+0xc1/0xe0\n common_interrupt+0x83/0xa0","modified":"2026-04-02T08:27:16.549317Z","published":"2025-02-26T01:54:34.395Z","related":["SUSE-SU-2025:1027-1","SUSE-SU-2025:1176-1","SUSE-SU-2025:1183-1","SUSE-SU-2025:1241-1","SUSE-SU-2025:1293-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49066.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/1ef0088e43af1de4e3b365218c4d3179d9a37eec"},{"type":"WEB","url":"https://git.kernel.org/stable/c/2fd90b86dff413fbf8128780c04ea9c6849c16e2"},{"type":"WEB","url":"https://git.kernel.org/stable/c/3de2a02b60a4ef0ab76263216f08c7d095fc7c42"},{"type":"WEB","url":"https://git.kernel.org/stable/c/46bc359fec0c6d87b70d7a008bcd9a5e30dd6f27"},{"type":"WEB","url":"https://git.kernel.org/stable/c/726e2c5929de841fdcef4e2bf995680688ae1b87"},{"type":"WEB","url":"https://git.kernel.org/stable/c/93940fc4cb81840dc0fa202de48cccb949a0261d"},{"type":"WEB","url":"https://git.kernel.org/stable/c/d417a859221f127e8edf09c14b76ab50f825e171"},{"type":"WEB","url":"https://git.kernel.org/stable/c/d67c900f1947d64ba8a64f693504bcaab8d9000c"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49066.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-49066"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"e314dbdc1c0dc6a548ecf0afce28ecfd538ff568"},{"fixed":"3de2a02b60a4ef0ab76263216f08c7d095fc7c42"},{"fixed":"d417a859221f127e8edf09c14b76ab50f825e171"},{"fixed":"1ef0088e43af1de4e3b365218c4d3179d9a37eec"},{"fixed":"2fd90b86dff413fbf8128780c04ea9c6849c16e2"},{"fixed":"d67c900f1947d64ba8a64f693504bcaab8d9000c"},{"fixed":"93940fc4cb81840dc0fa202de48cccb949a0261d"},{"fixed":"46bc359fec0c6d87b70d7a008bcd9a5e30dd6f27"},{"fixed":"726e2c5929de841fdcef4e2bf995680688ae1b87"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-49066.json"}}],"schema_version":"1.7.5"}