DEBIAN-CVE-2022-49907
Record from OSV · Published May 1, 2025
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>
Fixed versions
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| Package | Ecosystem | Fixed in |
|---|---|---|
| linux | Debian:13 | 6.0.8-1 |
| linux | Debian:14 | 6.0.8-1 |
| linux | Debian:12 | 6.0.8-1 |
Risk scores
Affected products
| Vendor | Product | Versions |
|---|---|---|
| Debian:13 | linux | 0 |
| Debian:14 | linux | 0 |
| Debian:12 | linux | 0 |
Timeline
- May 1, 2025 CVE Published
- Oct 15, 2026 CVE Updated
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vulnetix vdb vuln DEBIAN-CVE-2022-49907
vulnetix vdb fixes DEBIAN-CVE-2022-49907
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