{"id":"DEBIAN-CVE-2022-49907","details":"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:  \u003cTASK\u003e  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  \u003c/TASK\u003e","modified":"2026-09-01T16:05:33.766210045Z","published":"2025-05-01T15:16:15.810Z","upstream":["CVE-2022-49907"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2022-49907"}],"affected":[{"package":{"name":"linux","ecosystem":"Debian:12","purl":"pkg:deb/debian/linux?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.0.8-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2022-49907.json"}},{"package":{"name":"linux","ecosystem":"Debian:13","purl":"pkg:deb/debian/linux?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.0.8-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2022-49907.json"}},{"package":{"name":"linux","ecosystem":"Debian:14","purl":"pkg:deb/debian/linux?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.0.8-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2022-49907.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}]}