CVE-2022-49100

Summary

In the Linux kernel, the following vulnerability has been resolved:

virtio_console: eliminate anonymous module_init & module_exit

Eliminate anonymous module_init() and module_exit(), which can lead to confusion or ambiguity when reading System.map, crashes/oops/bugs, or an initcall_debug log.

Give each of these init and exit functions unique driver-specific names to eliminate the anonymous names.

Example 1: (System.map) ffffffff832fc78c t init ffffffff832fc79e t init ffffffff832fc8f8 t init

Example 2: (initcall_debug log) calling init+0x0/0x12 @ 1 initcall init+0x0/0x12 returned 0 after 15 usecs calling init+0x0/0x60 @ 1 initcall init+0x0/0x60 returned 0 after 2 usecs calling init+0x0/0x9a @ 1 initcall init+0x0/0x9a returned 0 after 74 usecs

Affected Software

VendorProductVersion RangeStatus
LinuxLinux31610434bc3523c0b01a10917a1185096a03c4c8 < 93e3d88321d2274fa4e26b006e19cc10fec331c2affected
LinuxLinux31610434bc3523c0b01a10917a1185096a03c4c8 < 7deaddb704713608e0ae559e27185581b9af71a0affected
LinuxLinux31610434bc3523c0b01a10917a1185096a03c4c8 < 0f3d824bd70a1303464d5e93ee3e7afe7832fe89affected
LinuxLinux31610434bc3523c0b01a10917a1185096a03c4c8 < 3504b0a177208eda85bf472bbf7c9aa77d2b8343affected
LinuxLinux31610434bc3523c0b01a10917a1185096a03c4c8 < c69b442125bf009fce26e15aa5616caf8a3673c3affected
LinuxLinux31610434bc3523c0b01a10917a1185096a03c4c8 < 44c2d5fbe7b2bd1f8cb114d608a591a73a5d4ae6affected
LinuxLinux31610434bc3523c0b01a10917a1185096a03c4c8 < 3fd5dee7404ce40c79cba468bb2510115639d975affected
LinuxLinux31610434bc3523c0b01a10917a1185096a03c4c8 < 71612aee09ecea3475f8751dc841d75a011b1fd0affected
LinuxLinux31610434bc3523c0b01a10917a1185096a03c4c8 < fefb8a2a941338d871e2d83fbd65fbfa068857bdaffected
LinuxLinux2.6.24affected
LinuxLinux0 < 2.6.24unaffected
LinuxLinux4.9.311 <= 4.9.*unaffected
LinuxLinux4.14.276 <= 4.14.*unaffected
LinuxLinux4.19.238 <= 4.19.*unaffected
LinuxLinux5.4.189 <= 5.4.*unaffected
LinuxLinux5.10.111 <= 5.10.*unaffected
LinuxLinux5.15.34 <= 5.15.*unaffected
LinuxLinux5.16.20 <= 5.16.*unaffected
LinuxLinux5.17.3 <= 5.17.*unaffected
LinuxLinux5.18 <= *unaffected

Weaknesses

References