Executive Summary



This vulnerability is currently undergoing analysis and not all information is available. Please check back soon to view the completed vulnerability summary
Informations
Name CVE-2022-49907 First vendor Publication 2025-05-01
Vendor Cve Last vendor Modification 2025-05-01

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector :
Cvss Base Score N/A Attack Range N/A
Cvss Impact Score N/A Attack Complexity N/A
Cvss Expoit Score N/A Authentication N/A
Calculate full CVSS 2.0 Vectors scores

Detail

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:

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

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-49907

Sources (Detail)

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

Alert History

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0
Date Informations
2025-05-27 02:13:05
  • First insertion