CVE-2022-49066
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2022
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
veth: Ensure eth header is in skb's linear part
In the Linux kernel, the following vulnerability has been resolved: veth: Ensure eth header is in skb's linear part After feeding a decapsulated packet to a veth device with act_mirred, skb_headlen() may be 0. But veth_xmit() calls __dev_forward_skb(), which expects at least ETH_HLEN byte of linear data (as __dev_forward_skb2() calls eth_type_trans(), which pulls ETH_HLEN bytes unconditionally). Use pskb_may_pull() to ensure veth_xmit() respects this constraint. kernel BUG at include/linux/skbuff.h:2328! RIP: 0010:eth_type_trans+0xcf/0x140 Call Trace: <IRQ> __dev_forward_skb2+0xe3/0x160 veth_xmit+0x6e/0x250 [veth] dev_hard_start_xmit+0xc7/0x200 __dev_queue_xmit+0x47f/0x520 ? skb_ensure_writable+0x85/0xa0 ? skb_mpls_pop+0x98/0x1c0 tcf_mirred_act+0x442/0x47e [act_mirred] tcf_action_exec+0x86/0x140 fl_classify+0x1d8/0x1e0 [cls_flower] ? dma_pte_clear_level+0x129/0x1a0 ? dma_pte_clear_level+0x129/0x1a0 ? prb_fill_curr_block+0x2f/0xc0 ? skb_copy_bits+0x11a/0x220 __tcf_classify+0x58/0x110 tcf_classify_ingress+0x6b/0x140 __netif_receive_skb_core.constprop.0+0x47d/0xfd0 ? __iommu_dma_unmap_swiotlb+0x44/0x90 __netif_receive_skb_one_core+0x3d/0xa0 netif_receive_skb+0x116/0x170 be_process_rx+0x22f/0x330 [be2net] be_poll+0x13c/0x370 [be2net] __napi_poll+0x2a/0x170 net_rx_action+0x22f/0x2f0 __do_softirq+0xca/0x2a8 __irq_exit_rcu+0xc1/0xe0 common_interrupt+0x83/0xa0
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| e314dbdc1c0dc6a548ecf0afce28ecfd538ff568 | affected | git | 3de2a02b60a4ef0ab76263216f08c7d095fc7c42 | Unavailable | None listed |
| e314dbdc1c0dc6a548ecf0afce28ecfd538ff568 | affected | git | d417a859221f127e8edf09c14b76ab50f825e171 | Unavailable | None listed |
| e314dbdc1c0dc6a548ecf0afce28ecfd538ff568 | affected | git | 1ef0088e43af1de4e3b365218c4d3179d9a37eec | Unavailable | None listed |
| e314dbdc1c0dc6a548ecf0afce28ecfd538ff568 | affected | git | 2fd90b86dff413fbf8128780c04ea9c6849c16e2 | Unavailable | None listed |
| e314dbdc1c0dc6a548ecf0afce28ecfd538ff568 | affected | git | d67c900f1947d64ba8a64f693504bcaab8d9000c | Unavailable | None listed |
| e314dbdc1c0dc6a548ecf0afce28ecfd538ff568 | affected | git | 93940fc4cb81840dc0fa202de48cccb949a0261d | Unavailable | None listed |
| e314dbdc1c0dc6a548ecf0afce28ecfd538ff568 | affected | git | 46bc359fec0c6d87b70d7a008bcd9a5e30dd6f27 | Unavailable | None listed |
| e314dbdc1c0dc6a548ecf0afce28ecfd538ff568 | affected | git | 726e2c5929de841fdcef4e2bf995680688ae1b87 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 2.6.24 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 2.6.24 | Unavailable | None listed |
| 4.9.311 | unaffected | semver | Unavailable | 4.9.* | None listed |
| 4.14.276 | unaffected | semver | Unavailable | 4.14.* | None listed |
| 4.19.239 | unaffected | semver | Unavailable | 4.19.* | None listed |
| 5.4.190 | unaffected | semver | Unavailable | 5.4.* | None listed |
| 5.10.112 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.35 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 5.17.4 | unaffected | semver | Unavailable | 5.17.* | None listed |
| 5.18 | unaffected | original_commit_for_fix | Unavailable | * | None listed |