5.5

CVE-2026-46287

net: txgbe: fix RTNL assertion warning when remove module

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
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 6.6 < 6.6.140
Linux ≫ Linux Kernel Version >= 6.7 < 6.12.88
Linux ≫ Linux Kernel Version >= 6.13 < 6.18.27
Linux ≫ Linux Kernel Version >= 6.19 < 7.0.4
VulnDex Vulnerability Enrichment
Diese Information steht angemeldeten Benutzern zur Verfügung. Login Login
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.12% 0.023
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-617 Reachable Assertion

The product contains an assert() or similar statement that can be triggered by an attacker, which leads to an application exit or other behavior that is more severe than necessary.

https://git.kernel.org/stable/c/0305e7118451c7c363c18f8113b0d8e0077ffa4c
Patch
https://git.kernel.org/stable/c/3e223a7fd41ce6fffdb10577df9350385262bf33
Patch
https://git.kernel.org/stable/c/d29cafc7e4ee9e28a150ba17e9a565ec5d881fbc
Patch
https://git.kernel.org/stable/c/6c5ec52c68a6a442c8a159615ae092512562318a
Patch
https://git.kernel.org/stable/c/e159f05e12cc1111a3103b99375ddf0dfd0e7d63
Patch