Bug 2402237 (CVE-2022-50538) - CVE-2022-50538 kernel: vme: Fix error not catched in fake_init()
Summary: CVE-2022-50538 kernel: vme: Fix error not catched in fake_init()
Keywords:
Status: NEW
Alias: CVE-2022-50538
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
unspecified
unspecified
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-10-07 16:04 UTC by OSIDB Bzimport
Modified: 2025-11-26 12:25 UTC (History)
0 users

Fixed In Version:
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Description OSIDB Bzimport 2025-10-07 16:04:44 UTC
In the Linux kernel, the following vulnerability has been resolved:

vme: Fix error not catched in fake_init()

In fake_init(), __root_device_register() is possible to fail but it's
ignored, which can cause unregistering vme_root fail when exit.

 general protection fault,
 probably for non-canonical address 0xdffffc000000008c
 KASAN: null-ptr-deref in range [0x0000000000000460-0x0000000000000467]
 RIP: 0010:root_device_unregister+0x26/0x60
 Call Trace:
  <TASK>
  __x64_sys_delete_module+0x34f/0x540
  do_syscall_64+0x38/0x90
  entry_SYSCALL_64_after_hwframe+0x63/0xcd

Return error when __root_device_register() fails.


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