CVE-2023-53060
igb: revert rtnl_lock() that causes deadlock
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
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] <TASK>
[ 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.
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] <TASK> [ 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.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2025-05-02 CVE Reserved
- 2025-05-02 CVE Published
- 2025-05-02 CVE Updated
- ---------- EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
CAPEC
References (15)
| URL | Tag | Source |
|---|---|---|
| https://git.kernel.org/stable/c/5773a1e6e5ba9f62c4573c57878d154fda269bc2 | Vuln. Introduced | |
| https://git.kernel.org/stable/c/2e8a30c1d994d91099fa8762f504b2ac9dce2cf7 | Vuln. Introduced | |
| https://git.kernel.org/stable/c/55197ba6d64d48f1948e6e1f52482e0e3e38e1bf | Vuln. Introduced | |
| https://git.kernel.org/stable/c/0f516dcd1456b18b56a7de0c1f67b8a4aa54c2ef | Vuln. Introduced | |
| https://git.kernel.org/stable/c/8ee44abe4cae06713db33e0a3b1e87bfb95b13ef | Vuln. Introduced | |
| https://git.kernel.org/stable/c/6faee3d4ee8be0f0367d0c3d826afb3571b7a5e0 | Vuln. Introduced | |
| https://git.kernel.org/stable/c/64c0c233a88591bb23569ae12eed7f74e5bd39ce | Vuln. Introduced |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
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Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.14.291 < 4.14.312 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.14.291 < 4.14.312" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.19.256 < 4.19.280 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.19.256 < 4.19.280" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 5.4.211 < 5.4.240 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.4.211 < 5.4.240" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 5.10.138 < 5.10.177 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.10.138 < 5.10.177" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 5.15.63 < 5.15.105 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.15.63 < 5.15.105" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 6.0 < 6.1.22 Search vendor "Linux" for product "Linux Kernel" and version " >= 6.0 < 6.1.22" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 6.0 < 6.2.9 Search vendor "Linux" for product "Linux Kernel" and version " >= 6.0 < 6.2.9" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 6.0 < 6.3 Search vendor "Linux" for product "Linux Kernel" and version " >= 6.0 < 6.3" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | 5.19.4 Search vendor "Linux" for product "Linux Kernel" and version "5.19.4" | en |
Affected
| ||||||