Same story with other modules, i.e.:

# objdump -x ./ubuntu/iwlwifi/iwlwifi.ko | grep init_module
0000000000000000 g     F .init.text     00000000000000dc init_module
0000000000000138 R_X86_64_64       init_module

versus

# objdump -x ./kernel/drivers/net/wireless/intel/iwlwifi/iwlwifi.ko | grep -e 
init_module
0000000000000000 g     F .init.text     000000000000007c init_module
0000000000000000 g     O .init.data     0000000000000008 __cfi_jt_init_module
0000000000000000 R_X86_64_64       init_module
0000000000000138 R_X86_64_64       init_module

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You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1980484

Title:
  temporarily disable CONFIG_X86_KERNEL_IBT

Status in backport-iwlwifi-dkms package in Ubuntu:
  Confirmed
Status in linux package in Ubuntu:
  Incomplete
Status in v4l2loopback package in Ubuntu:
  Confirmed
Status in backport-iwlwifi-dkms source package in Kinetic:
  Confirmed
Status in linux source package in Kinetic:
  Incomplete
Status in v4l2loopback source package in Kinetic:
  Confirmed

Bug description:
  Enabling IBT in the kernel is going to be problematic at the moment,
  because dkms' that have a precompiled binary need to be linked against
  non-IBT kernels and IBT kernels (see nvidia drivers for example).

  For this reason it's safer to keep IBT disabled at the moment, until
  all the kernels will have IBT enabled and the kernel modules /
  binaries will use the proper flags to generate IBT-compliant binaries.

To manage notifications about this bug go to:
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