CVE-2019-25044
HIGH
7.8
CVSS Score
Published: May 14, 2021 at 10:57 PM UTC
Updated: June 17, 2026 at 02:31 AM UTC
21 products affected across 2 vendorsLinux KernelCloud BackupH700S Firmware
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Severity
HIGH7.8
Exploit prediction
EPSS 0.6%
Description
The block subsystem in the Linux kernel before 5.2 has a use-after-free that can lead to arbitrary code execution in the kernel context and privilege escalation, aka CID-c3e2219216c9. This is related to blk_mq_free_rqs and blk_cleanup_queue.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Cloud Backup· NetAppdrupal
95%All versions
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
References (5)
x_refsource_MISCPatchVendor Advisory
Source: [email protected]
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.2x_refsource_MISCMailing ListPatchVendor Advisory
Source: [email protected]
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c3e2219216c92919a6bd1711f340f5faa98695e6x_refsource_CONFIRMThird Party Advisory
Source: [email protected]
https://security.netapp.com/advisory/ntap-20210629-0006/x_refsource_MISCThird Party Advisory
Source: [email protected]
https://sites.google.com/view/syzscope/kasan-use-after-free-read-in-blk_mq_free_rqsx_refsource_MISCExploitThird Party Advisory
Source: [email protected]
https://syzkaller.appspot.com/bug?id=36fe241584203cf394d44560a42e3430434f1213CVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-416
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