ghsa-6f24-wm2q-5fj6
Vulnerability from github
In the Linux kernel, the following vulnerability has been resolved:
igb: revert rtnl_lock() that causes deadlock
The commit 6faee3d4ee8b ("igb: Add lock to avoid data race") adds rtnl_lock to eliminate a false data race shown below
(FREE from device detaching) | (USE from netdev core) igb_remove | igb_ndo_get_vf_config igb_disable_sriov | vf >= adapter->vfs_allocated_count? kfree(adapter->vf_data) | adapter->vfs_allocated_count = 0 | | memcpy(... adapter->vf_data[vf]
The above race will never happen and the extra rtnl_lock causes deadlock below
[ 141.420169] [ 141.420672] __schedule+0x2dd/0x840 [ 141.421427] schedule+0x50/0xc0 [ 141.422041] schedule_preempt_disabled+0x11/0x20 [ 141.422678] __mutex_lock.isra.13+0x431/0x6b0 [ 141.423324] unregister_netdev+0xe/0x20 [ 141.423578] igbvf_remove+0x45/0xe0 [igbvf] [ 141.423791] pci_device_remove+0x36/0xb0 [ 141.423990] device_release_driver_internal+0xc1/0x160 [ 141.424270] pci_stop_bus_device+0x6d/0x90 [ 141.424507] pci_stop_and_remove_bus_device+0xe/0x20 [ 141.424789] pci_iov_remove_virtfn+0xba/0x120 [ 141.425452] sriov_disable+0x2f/0xf0 [ 141.425679] igb_disable_sriov+0x4e/0x100 [igb] [ 141.426353] igb_remove+0xa0/0x130 [igb] [ 141.426599] pci_device_remove+0x36/0xb0 [ 141.426796] device_release_driver_internal+0xc1/0x160 [ 141.427060] driver_detach+0x44/0x90 [ 141.427253] bus_remove_driver+0x55/0xe0 [ 141.427477] pci_unregister_driver+0x2a/0xa0 [ 141.428296] __x64_sys_delete_module+0x141/0x2b0 [ 141.429126] ? mntput_no_expire+0x4a/0x240 [ 141.429363] ? syscall_trace_enter.isra.19+0x126/0x1a0 [ 141.429653] do_syscall_64+0x5b/0x80 [ 141.429847] ? exit_to_user_mode_prepare+0x14d/0x1c0 [ 141.430109] ? syscall_exit_to_user_mode+0x12/0x30 [ 141.430849] ? do_syscall_64+0x67/0x80 [ 141.431083] ? syscall_exit_to_user_mode_prepare+0x183/0x1b0 [ 141.431770] ? syscall_exit_to_user_mode+0x12/0x30 [ 141.432482] ? do_syscall_64+0x67/0x80 [ 141.432714] ? exc_page_fault+0x64/0x140 [ 141.432911] entry_SYSCALL_64_after_hwframe+0x72/0xdc
Since the igb_disable_sriov() will call pci_disable_sriov() before releasing any resources, the netdev core will synchronize the cleanup to avoid any races. This patch removes the useless rtnl_(un)lock to guarantee correctness.
{
"affected": [],
"aliases": [
"CVE-2023-53060"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-05-02T16:15:25Z",
"severity": null
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nigb: revert rtnl_lock() that causes deadlock\n\nThe commit 6faee3d4ee8b (\"igb: Add lock to avoid data race\") adds\nrtnl_lock to eliminate a false data race shown below\n\n (FREE from device detaching) | (USE from netdev core)\nigb_remove | igb_ndo_get_vf_config\n igb_disable_sriov | vf \u003e= adapter-\u003evfs_allocated_count?\n kfree(adapter-\u003evf_data) |\n adapter-\u003evfs_allocated_count = 0 |\n | memcpy(... adapter-\u003evf_data[vf]\n\nThe above race will never happen and the extra rtnl_lock causes deadlock\nbelow\n\n[ 141.420169] \u003cTASK\u003e\n[ 141.420672] __schedule+0x2dd/0x840\n[ 141.421427] schedule+0x50/0xc0\n[ 141.422041] schedule_preempt_disabled+0x11/0x20\n[ 141.422678] __mutex_lock.isra.13+0x431/0x6b0\n[ 141.423324] unregister_netdev+0xe/0x20\n[ 141.423578] igbvf_remove+0x45/0xe0 [igbvf]\n[ 141.423791] pci_device_remove+0x36/0xb0\n[ 141.423990] device_release_driver_internal+0xc1/0x160\n[ 141.424270] pci_stop_bus_device+0x6d/0x90\n[ 141.424507] pci_stop_and_remove_bus_device+0xe/0x20\n[ 141.424789] pci_iov_remove_virtfn+0xba/0x120\n[ 141.425452] sriov_disable+0x2f/0xf0\n[ 141.425679] igb_disable_sriov+0x4e/0x100 [igb]\n[ 141.426353] igb_remove+0xa0/0x130 [igb]\n[ 141.426599] pci_device_remove+0x36/0xb0\n[ 141.426796] device_release_driver_internal+0xc1/0x160\n[ 141.427060] driver_detach+0x44/0x90\n[ 141.427253] bus_remove_driver+0x55/0xe0\n[ 141.427477] pci_unregister_driver+0x2a/0xa0\n[ 141.428296] __x64_sys_delete_module+0x141/0x2b0\n[ 141.429126] ? mntput_no_expire+0x4a/0x240\n[ 141.429363] ? syscall_trace_enter.isra.19+0x126/0x1a0\n[ 141.429653] do_syscall_64+0x5b/0x80\n[ 141.429847] ? exit_to_user_mode_prepare+0x14d/0x1c0\n[ 141.430109] ? syscall_exit_to_user_mode+0x12/0x30\n[ 141.430849] ? do_syscall_64+0x67/0x80\n[ 141.431083] ? syscall_exit_to_user_mode_prepare+0x183/0x1b0\n[ 141.431770] ? syscall_exit_to_user_mode+0x12/0x30\n[ 141.432482] ? do_syscall_64+0x67/0x80\n[ 141.432714] ? exc_page_fault+0x64/0x140\n[ 141.432911] entry_SYSCALL_64_after_hwframe+0x72/0xdc\n\nSince the igb_disable_sriov() will call pci_disable_sriov() before\nreleasing any resources, the netdev core will synchronize the cleanup to\navoid any races. This patch removes the useless rtnl_(un)lock to guarantee\ncorrectness.",
"id": "GHSA-6f24-wm2q-5fj6",
"modified": "2025-05-02T18:31:34Z",
"published": "2025-05-02T18:31:34Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-53060"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/0dabb72b923e17cb3b4ac99ea1adc9ef35116930"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/4d2626e10709ff8474ffd1a9db3cf4647569e89c"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/62a64645749926f9d75af82a96440941f22b046f"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/65f69851e44d71248b952a687e44759a7abb5016"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/66e5577cabc3d463eea540332727929d0ace41c6"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/7d845e9a485f287181ff81567c3900a8e7ad1e28"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/cd1e320ac0958298c2774605ad050483f33a21f2"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/de91528d8ba274c614a2265077d695c61e31fd43"
}
],
"schema_version": "1.4.0",
"severity": []
}
Sightings
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