kernel: use-after-free in the block subsystem related to blk_mq_free_rqs and blk_cleanup_queue
Published May 14, 2021
7.8
HIGHCVSS 3.1
EPSS 0.65%
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 products
No data.
Configuration 1
- 5.2
Configuration 2
- n/a
- n/a
Configuration 3
Running on/with
- n/a
Configuration 4
- n/a
Configuration 5
- n/a
Configuration 6
- n/a
Configuration 7
- n/a
Configuration 8
- n/a
Configuration 9
- n/a
Configuration 10
- n/a
Configuration 11
- n/a
No data.
Red Hat Enterprise Linux 6
kernel
Not affected
Red Hat Enterprise Linux 7
kernel
Not affected
Red Hat Enterprise Linux 7
kernel-rt
Not affected
Red Hat Enterprise Linux 8
kernel
Not affected
Red Hat Enterprise Linux 8
kernel-rt
Not affected
Red Hat Enterprise Linux 9
kernel
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel-rt | Not affected | n/a |
| Red Hat Enterprise Linux 8 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 8 | kernel-rt | Not affected | n/a |
| Red Hat Enterprise Linux 9 | kernel | Not affected | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
References (9)
- https://access.redhat.com/security/cve/CVE-2019-25044 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1961292 Issue Tracking
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.2 x_refsource_MISCPatchVendor Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c3e2219216c92919a6bd1711f340f5faa98695e6 x_refsource_MISCMailing ListPatchVendor Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2019-25044
- https://security.netapp.com/advisory/ntap-20210629-0006/ x_refsource_CONFIRMThird Party Advisory
- https://sites.google.com/view/syzscope/kasan-use-after-free-read-in-blk_mq_free_rqs x_refsource_MISCThird Party Advisory
- https://syzkaller.appspot.com/bug?id=36fe241584203cf394d44560a42e3430434f1213 x_refsource_MISCExploitThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2019-25044
| Link | Providers | Tags |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2019-25044 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1961292 | Issue Tracking | |
| https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.2 | x_refsource_MISCPatchVendor Advisory | |
| https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c3e2219216c92919a6bd1711f340f5faa98695e6 | x_refsource_MISCMailing ListPatchVendor Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2019-25044 | ||
| https://security.netapp.com/advisory/ntap-20210629-0006/ | x_refsource_CONFIRMThird Party Advisory | |
| https://sites.google.com/view/syzscope/kasan-use-after-free-read-in-blk_mq_free_rqs | x_refsource_MISCThird Party Advisory | |
| https://syzkaller.appspot.com/bug?id=36fe241584203cf394d44560a42e3430434f1213 | x_refsource_MISCExploitThird Party Advisory | |
| https://www.cve.org/CVERecord?id=CVE-2019-25044 |
Change history (0)
No recorded changes yet.