CVE-2022-49907
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2022-49907
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-49907.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2022-49907
- Downstream
- Related
- Published
- 2025-05-01T15:16:15Z
- Modified
- 2025-08-09T20:01:28Z
- Summary
- [none]
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
net: mdio: fix undefined behavior in bit shift for _mdiobusregister
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/mdiobus.c:586:27 left shift of 1 by 31 places cannot be represented in type 'int' Call Trace: <TASK> dumpstacklvl+0x7d/0xa5 dumpstack+0x15/0x1b ubsanepilogue+0xe/0x4e _ubsanhandleshiftoutofbounds+0x1e7/0x20c _mdiobusregister+0x49d/0x4e0 fixedmdiobusinit+0xd8/0x12d dooneinitcall+0x76/0x430 kernelinitfreeable+0x3b3/0x422 kernelinit+0x24/0x1e0 retfrom_fork+0x1f/0x30 </TASK>
- References
-
- 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