CVE - CVE-2022-49907

CVE-ID
CVE-2022-49907	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
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>
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/20ed01a7b9af6e6a3c33761eebbb710ea6dd49b7 URL:https://git.kernel.org/stable/c/20ed01a7b9af6e6a3c33761eebbb710ea6dd49b7 MISC:https://git.kernel.org/stable/c/40e4eb324c59e11fcb927aa46742d28aba6ecb8a URL:https://git.kernel.org/stable/c/40e4eb324c59e11fcb927aa46742d28aba6ecb8a MISC:https://git.kernel.org/stable/c/4954b5359eb141499492fadfab891e28905509e2 URL:https://git.kernel.org/stable/c/4954b5359eb141499492fadfab891e28905509e2 MISC:https://git.kernel.org/stable/c/634f066d02bdb22a26da7deb0c7617ab1a65fc9d URL:https://git.kernel.org/stable/c/634f066d02bdb22a26da7deb0c7617ab1a65fc9d MISC:https://git.kernel.org/stable/c/6ce6f8f8f6316da6f92afe7490bc2f0b654d68e0 URL:https://git.kernel.org/stable/c/6ce6f8f8f6316da6f92afe7490bc2f0b654d68e0 MISC:https://git.kernel.org/stable/c/7006176a3c863e3e353ce1b8a349ef5bb1b9320e URL:https://git.kernel.org/stable/c/7006176a3c863e3e353ce1b8a349ef5bb1b9320e MISC:https://git.kernel.org/stable/c/985a88bf0b27193522bba7856b1763f428cef19d URL:https://git.kernel.org/stable/c/985a88bf0b27193522bba7856b1763f428cef19d MISC:https://git.kernel.org/stable/c/a3fafc974be37319679f36dc4e7cca7db1e02973 URL:https://git.kernel.org/stable/c/a3fafc974be37319679f36dc4e7cca7db1e02973
Assigning CNA
kernel.org
Date Record Created
20250501	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20250501)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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