ghsa-w6vh-9g8v-hhwg
Vulnerability from github
In the Linux kernel, the following vulnerability has been resolved:
netfilter: nft_flow_offload: release dst in case direct xmit path is used
Direct xmit does not use it since it calls dev_queue_xmit() to send packets, hence it calls dst_release().
kmemleak reports:
unreferenced object 0xffff88814f440900 (size 184): comm "softirq", pid 0, jiffies 4294951896 hex dump (first 32 bytes): 00 60 5b 04 81 88 ff ff 00 e6 e8 82 ff ff ff ff .`[............. 21 0b 50 82 ff ff ff ff 00 00 00 00 00 00 00 00 !.P............. backtrace (crc cb2bf5d6): [<000000003ee17107>] kmem_cache_alloc+0x286/0x340 [<0000000021a5de2c>] dst_alloc+0x43/0xb0 [<00000000f0671159>] rt_dst_alloc+0x2e/0x190 [<00000000fe5092c9>] __mkroute_output+0x244/0x980 [<000000005fb96fb0>] ip_route_output_flow+0xc0/0x160 [<0000000045367433>] nf_ip_route+0xf/0x30 [<0000000085da1d8e>] nf_route+0x2d/0x60 [<00000000d1ecd1cb>] nft_flow_route+0x171/0x6a0 [nft_flow_offload] [<00000000d9b2fb60>] nft_flow_offload_eval+0x4e8/0x700 [nft_flow_offload] [<000000009f447dbb>] expr_call_ops_eval+0x53/0x330 [nf_tables] [<00000000072e1be6>] nft_do_chain+0x17c/0x840 [nf_tables] [<00000000d0551029>] nft_do_chain_inet+0xa1/0x210 [nf_tables] [<0000000097c9d5c6>] nf_hook_slow+0x5b/0x160 [<0000000005eccab1>] ip_forward+0x8b6/0x9b0 [<00000000553a269b>] ip_rcv+0x221/0x230 [<00000000412872e5>] __netif_receive_skb_one_core+0xfe/0x110
{
"affected": [],
"aliases": [
"CVE-2024-26834"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-04-17T10:15:09Z",
"severity": null
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nft_flow_offload: release dst in case direct xmit path is used\n\nDirect xmit does not use it since it calls dev_queue_xmit() to send\npackets, hence it calls dst_release().\n\nkmemleak reports:\n\nunreferenced object 0xffff88814f440900 (size 184):\n comm \"softirq\", pid 0, jiffies 4294951896\n hex dump (first 32 bytes):\n 00 60 5b 04 81 88 ff ff 00 e6 e8 82 ff ff ff ff .`[.............\n 21 0b 50 82 ff ff ff ff 00 00 00 00 00 00 00 00 !.P.............\n backtrace (crc cb2bf5d6):\n [\u003c000000003ee17107\u003e] kmem_cache_alloc+0x286/0x340\n [\u003c0000000021a5de2c\u003e] dst_alloc+0x43/0xb0\n [\u003c00000000f0671159\u003e] rt_dst_alloc+0x2e/0x190\n [\u003c00000000fe5092c9\u003e] __mkroute_output+0x244/0x980\n [\u003c000000005fb96fb0\u003e] ip_route_output_flow+0xc0/0x160\n [\u003c0000000045367433\u003e] nf_ip_route+0xf/0x30\n [\u003c0000000085da1d8e\u003e] nf_route+0x2d/0x60\n [\u003c00000000d1ecd1cb\u003e] nft_flow_route+0x171/0x6a0 [nft_flow_offload]\n [\u003c00000000d9b2fb60\u003e] nft_flow_offload_eval+0x4e8/0x700 [nft_flow_offload]\n [\u003c000000009f447dbb\u003e] expr_call_ops_eval+0x53/0x330 [nf_tables]\n [\u003c00000000072e1be6\u003e] nft_do_chain+0x17c/0x840 [nf_tables]\n [\u003c00000000d0551029\u003e] nft_do_chain_inet+0xa1/0x210 [nf_tables]\n [\u003c0000000097c9d5c6\u003e] nf_hook_slow+0x5b/0x160\n [\u003c0000000005eccab1\u003e] ip_forward+0x8b6/0x9b0\n [\u003c00000000553a269b\u003e] ip_rcv+0x221/0x230\n [\u003c00000000412872e5\u003e] __netif_receive_skb_one_core+0xfe/0x110",
"id": "GHSA-w6vh-9g8v-hhwg",
"modified": "2024-04-17T12:32:03Z",
"published": "2024-04-17T12:32:03Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-26834"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/13b57b5cd591d5b22f9bbf047b2922967de411f3"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/2d17cf10179a7de6d8f0128168b84ad0b4a1863f"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/8762785f459be1cfe6fcf7285c123aad6a3703f0"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/9256ab9232e35a16af9c30fa4e522e6d1bd3605a"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/a6cafdb49a7bbf4a88367db209703eee6941e023"
}
],
"schema_version": "1.4.0",
"severity": []
}
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.