CVE-2022-49907

HIGH EPSS 8.6%
Published May 1, 20251y ago · Modified Jun 17, 20261w ago
7.8 CVSS 3.1
High
Find Similar
Published May 1, 2025 1y ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: net: mdio: fix undefined behavior in bit shift for __mdiobus_register Shifting signed 32-bit value by 31 bits is undefined, so changing significant bit to unsigned. The UBSAN warning calltrace like below: UBSAN: shift-out-of-bounds in drivers/net/phy/mdio_bus.c:586:27 left shift of 1 by 31 places cannot be represented in type 'int' Call Trace: <TASK> dump_stack_lvl+0x7d/0xa5 dump_stack+0x15/0x1b ubsan_epilogue+0xe/0x4e __ubsan_handle_shift_out_of_bounds+0x1e7/0x20c __mdiobus_register+0x49d/0x4e0 fixed_mdio_bus_init+0xd8/0x12d do_one_initcall+0x76/0x430 kernel_init_freeable+0x3b3/0x422 kernel_init+0x24/0x1e0 ret_from_fork+0x1f/0x30 </TASK>

CVSS Details

Base Score
7.8
Exploitability
1.8
Impact
5.9
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
8.6% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Affected Products 10

VendorProductVersionRange
linuxlinux_kernel*≥2.6.28  –  <4.9.333
linuxlinux_kernel*≥4.10  –  <4.14.299
linuxlinux_kernel*≥4.15  –  <4.19.265
linuxlinux_kernel*≥4.20  –  <5.4.224
linuxlinux_kernel*≥5.5  –  <5.10.154
linuxlinux_kernel*≥5.11  –  <5.15.78
linuxlinux_kernel*≥5.16  –  <6.0.8
linuxlinux_kernel6.1any
linuxlinux_kernel6.1any
linuxlinux_kernel6.1any

References 8

  • git.kernel.org https://git.kernel.org/stable/c/20ed01a7b9af6e6a3c33761eebbb710ea6dd49b7
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/40e4eb324c59e11fcb927aa46742d28aba6ecb8a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/4954b5359eb141499492fadfab891e28905509e2
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/634f066d02bdb22a26da7deb0c7617ab1a65fc9d
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6ce6f8f8f6316da6f92afe7490bc2f0b654d68e0
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7006176a3c863e3e353ce1b8a349ef5bb1b9320e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/985a88bf0b27193522bba7856b1763f428cef19d
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/a3fafc974be37319679f36dc4e7cca7db1e02973
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/20ed01a7b9af6e6a3c33761eebbb710ea6dd49b7
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/40e4eb324c59e11fcb927aa46742d28aba6ecb8a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/4954b5359eb141499492fadfab891e28905509e2
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/634f066d02bdb22a26da7deb0c7617ab1a65fc9d
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6ce6f8f8f6316da6f92afe7490bc2f0b654d68e0
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7006176a3c863e3e353ce1b8a349ef5bb1b9320e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/985a88bf0b27193522bba7856b1763f428cef19d
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/a3fafc974be37319679f36dc4e7cca7db1e02973
    Patch