ghsa-vpj6-g6hc-j3cp
Vulnerability from github
In the Linux kernel, the following vulnerability has been resolved:
bonding: Fix unnecessary warnings and logs from bond_xdp_get_xmit_slave()
syzbot reported a WARNING in bond_xdp_get_xmit_slave. To reproduce this[1], one bond device (bond1) has xdpdrv, which increases bpf_master_redirect_enabled_key. Another bond device (bond0) which is unsupported by XDP but its slave (veth3) has xdpgeneric that returns XDP_TX. This triggers WARN_ON_ONCE() from the xdp_master_redirect(). To reduce unnecessary warnings and improve log management, we need to delete the WARN_ON_ONCE() and add ratelimit to the netdev_err().
[1] Steps to reproduce: # Needs tx_xdp with return XDP_TX; ip l add veth0 type veth peer veth1 ip l add veth3 type veth peer veth4 ip l add bond0 type bond mode 6 # BOND_MODE_ALB, unsupported by XDP ip l add bond1 type bond # BOND_MODE_ROUNDROBIN by default ip l set veth0 master bond1 ip l set bond1 up # Increases bpf_master_redirect_enabled_key ip l set dev bond1 xdpdrv object tx_xdp.o section xdp_tx ip l set veth3 master bond0 ip l set bond0 up ip l set veth4 up # Triggers WARN_ON_ONCE() from the xdp_master_redirect() ip l set veth3 xdpgeneric object tx_xdp.o section xdp_tx
{
"affected": [],
"aliases": [
"CVE-2024-47734"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-10-21T13:15:03Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbonding: Fix unnecessary warnings and logs from bond_xdp_get_xmit_slave()\n\nsyzbot reported a WARNING in bond_xdp_get_xmit_slave. To reproduce\nthis[1], one bond device (bond1) has xdpdrv, which increases\nbpf_master_redirect_enabled_key. Another bond device (bond0) which is\nunsupported by XDP but its slave (veth3) has xdpgeneric that returns\nXDP_TX. This triggers WARN_ON_ONCE() from the xdp_master_redirect().\nTo reduce unnecessary warnings and improve log management, we need to\ndelete the WARN_ON_ONCE() and add ratelimit to the netdev_err().\n\n[1] Steps to reproduce:\n # Needs tx_xdp with return XDP_TX;\n ip l add veth0 type veth peer veth1\n ip l add veth3 type veth peer veth4\n ip l add bond0 type bond mode 6 # BOND_MODE_ALB, unsupported by XDP\n ip l add bond1 type bond # BOND_MODE_ROUNDROBIN by default\n ip l set veth0 master bond1\n ip l set bond1 up\n # Increases bpf_master_redirect_enabled_key\n ip l set dev bond1 xdpdrv object tx_xdp.o section xdp_tx\n ip l set veth3 master bond0\n ip l set bond0 up\n ip l set veth4 up\n # Triggers WARN_ON_ONCE() from the xdp_master_redirect()\n ip l set veth3 xdpgeneric object tx_xdp.o section xdp_tx",
"id": "GHSA-vpj6-g6hc-j3cp",
"modified": "2024-10-23T18:33:07Z",
"published": "2024-10-21T15:32:26Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-47734"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/0cbfd45fbcf0cb26d85c981b91c62fe73cdee01c"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/57b5fba55c6f8b1d83312a34bd656166fcd95658"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/6b64197b4bf1a5703a8b105367baf20f1e627a75"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/72e2c0825a480e19ee999cee9d018850d38c82b9"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/c1be35e774f8ed415e01209fddd963c5a74e8e9f"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/ccd3e6ff05e5236d1b9535f23f3e6622e0bb32b8"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
]
}
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