Bug 2422750 (CVE-2025-68253) - CVE-2025-68253 kernel: mm: don't spin in add_stack_record when gfp flags don't allow
Summary: CVE-2025-68253 kernel: mm: don't spin in add_stack_record when gfp flags don'...
Keywords:
Status: NEW
Alias: CVE-2025-68253
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-12-16 15:01 UTC by OSIDB Bzimport
Modified: 2025-12-19 04:03 UTC (History)
0 users

Fixed In Version:
Clone Of:
Environment:
Last Closed:
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Description OSIDB Bzimport 2025-12-16 15:01:56 UTC
In the Linux kernel, the following vulnerability has been resolved:

mm: don't spin in add_stack_record when gfp flags don't allow

syzbot was able to find the following path:
  add_stack_record_to_list mm/page_owner.c:182 [inline]
  inc_stack_record_count mm/page_owner.c:214 [inline]
  __set_page_owner+0x2c3/0x4a0 mm/page_owner.c:333
  set_page_owner include/linux/page_owner.h:32 [inline]
  post_alloc_hook+0x240/0x2a0 mm/page_alloc.c:1851
  prep_new_page mm/page_alloc.c:1859 [inline]
  get_page_from_freelist+0x21e4/0x22c0 mm/page_alloc.c:3858
  alloc_pages_nolock_noprof+0x94/0x120 mm/page_alloc.c:7554

Don't spin in add_stack_record_to_list() when it is called
from *_nolock() context.


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