net: txgbe: fix RTNL assertion warning when remove module
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-617.
Summary
In the Linux kernel, the following vulnerability has been resolved: net: txgbe: fix RTNL assertion warning when remove module For the copper NIC with external PHY, the driver called phylink_connect_phy() during probe and phylink_disconnect_phy() during remove. It caused an RTNL assertion warning in phylink_disconnect_phy() upon module remove. To fix this, add rtnl_lock() and rtnl_unlock() around the phylink_disconnect_phy() in remove function. ------------[ cut here ]------------ RTNL: assertion failed at drivers/net/phy/phylink.c (2351) WARNING: drivers/net/phy/phylink.c:2351 at phylink_disconnect_phy+0xd8/0xf0 [phylink], CPU#0: rmmod/4464 Modules linked in: ... CPU: 0 UID: 0 PID: 4464 Comm: rmmod Kdump: loaded Not tainted 7.0.0-rc4+ Hardware name: Micro-Star International Co., Ltd. MS-7E16/X670E GAMING PLUS WIFI (MS-7E16), BIOS 1.90 12/31/2024 RIP: 0010:phylink_disconnect_phy+0xe4/0xf0 [phylink] Code: 5b 41 5c 41 5d 41 5e 41 5f 5d 31 c0 31 d2 31 f6 31 ff e9 3a 38 8f e7 48 8d 3d 48 87 e2 ff ba 2f 09 00 00 48 c7 c6 c1 22 24 c0 <67> 48 0f b9 3a e9 34 ff ff ff 66 90 90 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffce7288363ac0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff89654b2a1a00 RCX: 0000000000000000 RDX: 000000000000092f RSI: ffffffffc02422c1 RDI: ffffffffc0239020 RBP: ffffce7288363ae8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff8964c4022000 R13: ffff89654fce3028 R14: ffff89654ebb4000 R15: ffffffffc0226348 FS: 0000795e80d93780(0000) GS:ffff896c52857000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005b528b592000 CR3: 0000000170d0f000 CR4: 0000000000f50ef0 PKRU: 55555554 Call Trace: <TASK> txgbe_remove_phy+0xbb/0xd0 [txgbe] txgbe_remove+0x4c/0xb0 [txgbe] pci_device_remove+0x41/0xb0 device_remove+0x43/0x80 device_release_driver_internal+0x206/0x270 driver_detach+0x4a/0xa0 bus_remove_driver+0x83/0x120 driver_unregister+0x2f/0x60 pci_unregister_driver+0x40/0x90 txgbe_driver_exit+0x10/0x850 [txgbe] __do_sys_delete_module.isra.0+0x1c3/0x2f0 __x64_sys_delete_module+0x12/0x20 x64_sys_call+0x20c3/0x2390 do_syscall_64+0x11c/0x1500 ? srso_alias_return_thunk+0x5/0xfbef5 ? do_syscall_64+0x15a/0x1500 ? srso_alias_return_thunk+0x5/0xfbef5 ? do_fault+0x312/0x580 ? srso_alias_return_thunk+0x5/0xfbef5 ? __handle_mm_fault+0x9d5/0x1040 ? srso_alias_return_thunk+0x5/0xfbef5 ? count_memcg_events+0x101/0x1d0 ? srso_alias_return_thunk+0x5/0xfbef5 ? handle_mm_fault+0x1e8/0x2f0 ? srso_alias_return_thunk+0x5/0xfbef5 ? do_user_addr_fault+0x2f8/0x820 ? srso_alias_return_thunk+0x5/0xfbef5 ? irqentry_exit+0xb2/0x600 ? srso_alias_return_thunk+0x5/0xfbef5 ? exc_page_fault+0x92/0x1c0 entry_SYSCALL_64_after_hwframe+0x76/0x7e
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Linux | Linux | 6.6 and later | 6.6.140, 6.12.88, 6.18.27, 7.0.4, 7.1 | Patch available | CNA |
- Linux VendorLinux Affected 6.6 and later Fixed in 6.6.140, 6.12.88, 6.18.27, 7.0.4, 7.1 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 6.6 to before 6.6.140; 6.7 to before 6.12.88; 6.13 to before 6.18.27; 6.19 to before 7.0.4 | Vulnerable | Linux |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 6.6 to before 6.6.140; 6.7 to before 6.12.88; 6.13 to before 6.18.27; 6.19 to before 7.0.4 Vulnerable ·Linux
Remediation
- Fix · CNA Linux (Linux) Fixed in 6.6.140, 6.12.88, 6.18.27, 7.0.4, 7.1
Vendor assessments
Red Hat
Not affected: 5 products
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
Timeline
- 2026-10-02 Threatist record created from CVE-2026-46287
- 2026-10-03 Alias added: GHSA-pqmq-qjcg-mw2v
References
Patch 5
- https://git.kernel.org/stable/c/0305e7118451c7c363c18f8113b0d8e0077ffa4c
- https://git.kernel.org/stable/c/3e223a7fd41ce6fffdb10577df9350385262bf33
- https://git.kernel.org/stable/c/d29cafc7e4ee9e28a150ba17e9a565ec5d881fbc
- https://git.kernel.org/stable/c/6c5ec52c68a6a442c8a159615ae092512562318a
- https://git.kernel.org/stable/c/e159f05e12cc1111a3103b99375ddf0dfd0e7d63
More Linux Kernel vulnerabilities
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- TI-2026-38352 netfilter: bridge: make ebt_snat ARP rewrite writable KEVCVSS 3.1HIGH 8.8
- TI-2013-05264 The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the… KEVCVSS 3.1HIGH 8.8
- TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
- TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
- TI-2021-05514 Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE KEVCVSS 3.1HIGH 8.3
Sources
- CVE-2026-46287 · CVE Program
- CVE-2026-46287 · NVD
- FIRST EPSS
- GHSA-pqmq-qjcg-mw2v · GitHub Advisory Database · CC BY 4.0
- CVE-2026-46287 · Red Hat security data · CC BY 4.0
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