# CVE-2026-58845: Android kernel integer overflow in VMA padding

Source: https://junglewise.ai/threats/cve-2026-58845-in-multiple-locations-there-is-a-possible-out-of-bounds-write-due  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-11-02. Updated: 2026-11-02  
License: CC BY 4.0 with a link back

CVE-2026-58845 · Severity: info · Published 2026-11-02

An integer overflow vulnerability in Android's kernel virtual memory management code allows a local attacker to write beyond buffer boundaries. This could enable privilege escalation without requiring special permissions or user interaction, giving an attacker full device control.

Technologies: [Google Android kernel](https://junglewise.ai/threats/technologies/google-android-kernel). Vendors: [Google](https://junglewise.ai/threats/vendors/google).

## Quick answers

**Is CVE-2026-58845 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-58845 being exploited in the wild.

**How severe is CVE-2026-58845?** Informational severity, published 2 November 2026.

**Which products and versions are affected?** Google Android kernel 16K page size migration code.

**Is there a fix for CVE-2026-58845?** Yes: fixed in Android kernel commit 3b9b40df51bda90ffb2833dcef11905e751dafdb and ed0e57e1e27a9eecd6c1a3dd1dd9ed1b8d1a06b4. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-58845 attacked?** It is attacked with local access, in an operating system.

**Am I affected by CVE-2026-58845?** Check whether you run Google Android kernel at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- Fixed in Android kernel commit 3b9b40df51bda90ffb2833dcef11905e751dafdb and ed0e57e1e27a9eecd6c1a3dd1dd9ed1b8d1a06b4

## Technical details

An integer overflow in VMA (virtual memory area) padding logic in the Android kernel's page size migration subsystem allows out-of-bounds memory writes. The vulnerability exists in multiple locations handling padding metadata for dynamically linked ELF binaries, particularly in vma_pad_pages() and related functions in mm/pgsize_migration.c and mm/mmap.c. Local exploitation requires no additional privileges and no user interaction.

## Affected products

- Google Android kernel 16K page size migration code

## Timeline

- 2026-11-02: disclosed

## References

- [https://android.googlesource.com/kernel/common/+/3b9b40df51bda90ffb2833dcef11905e751dafdb](https://android.googlesource.com/kernel/common/+/3b9b40df51bda90ffb2833dcef11905e751dafdb)
- [https://android.googlesource.com/kernel/common/+/ed0e57e1e27a9eecd6c1a3dd1dd9ed1b8d1a06b4](https://android.googlesource.com/kernel/common/+/ed0e57e1e27a9eecd6c1a3dd1dd9ed1b8d1a06b4)

## Related threats

- [Android kernel SMMU stale TLB entry escalation](https://junglewise.ai/threats/cve-2026-56930-in-smmu-find-ste-of-smmu-c-there-is-a-possible-way-to-retain)
- [Android Kernel out-of-bounds read in KVM trace buffer initialization](https://junglewise.ai/threats/cve-2026-59048-in-rb-cpu-init-of-trace-c-there-is-a-possible-out-of-bounds-read)
- [Android Kernel KVM race condition memory corruption](https://junglewise.ai/threats/cve-2026-59045-in-multiple-locations-there-is-a-possible-memory-corruption-due)
- [Android kernel out-of-bounds write in pKVM MMU race condition](https://junglewise.ai/threats/cve-2026-59042-in-pkvm-pages-to-ppages-of-mmu-c-there-is-a-possible-out-of)
- [Android kernel out-of-bounds read/write in IOMMU](https://junglewise.ai/threats/cve-2026-58844-in-multiple-locations-there-is-a-possible-out-of-bounds-read)