Bug 2373426 (CVE-2022-49988) - CVE-2022-49988 kernel: binder_alloc: add missing mmap_lock calls when using the VMA
Summary: CVE-2022-49988 kernel: binder_alloc: add missing mmap_lock calls when using t...
Keywords:
Status: NEW
Alias: CVE-2022-49988
Product: Security Response
Classification: Other
Component: vulnerability-draft
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: 2025-06-18 12:02 UTC by OSIDB Bzimport
Modified: 2025-08-20 11:53 UTC (History)
4 users (show)

Fixed In Version:
Clone Of:
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Description OSIDB Bzimport 2025-06-18 12:02:19 UTC
In the Linux kernel, the following vulnerability has been resolved:

binder_alloc: add missing mmap_lock calls when using the VMA

Take the mmap_read_lock() when using the VMA in binder_alloc_print_pages()
and when checking for a VMA in binder_alloc_new_buf_locked().

It is worth noting binder_alloc_new_buf_locked() drops the VMA read lock
after it verifies a VMA exists, but may be taken again deeper in the call
stack, if necessary.

Comment 1 Avinash Hanwate 2025-06-20 09:16:32 UTC
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025061823-CVE-2022-49988-d597@gregkh/T

Comment 3 TEJ RATHI 2025-08-20 11:53:11 UTC
This CVE has been rejected by the Linux kernel community. Refer to the announcement: https://lore.kernel.org/linux-cve-announce/2025061812-REJECTED-4c48@gregkh/

Comment added by: Automated Script


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