CVE-2022-39188 Race condition in n/a
A race condition in the Linux kernel allows device drivers to free pages with stale TLB entries, potentially leading to undefined behavior or memory corruption.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2022-39188?
CVE-2022-39188 is a medium-severity vulnerability in Debian Debian Linux, published on 2 Sep 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
An issue was discovered in include/asm-generic/tlb.h in the Linux kernel before 5.19. Because of a race condition (unmap_mapping_range versus munmap), a device driver can free a page while it still has stale TLB entries. This only occurs in situations with VM_PFNMAP VMAs.
Weakness: CWE-362
Which versions are affected by CVE-2022-39188?
It affects 2 products.
Linux distribution packages (9)
kgraft-patch-SLE12-SP4_Update_27 SUSE:Linux Enterprise Live Patching 12 SP4 | All versions | 5-2.2 |
kgraft-patch-SLE12-SP4_Update_28 SUSE:Linux Enterprise Live Patching 12 SP4 | All versions | 3-2.2 |
kgraft-patch-SLE12-SP4_Update_29 SUSE:Linux Enterprise Live Patching 12 SP4 | All versions | 3-2.2 |
kgraft-patch-SLE12-SP4_Update_30 SUSE:Linux Enterprise Live Patching 12 SP4 | All versions | 2-2.2 |
kgraft-patch-SLE12-SP5_Update_35 SUSE:Linux Enterprise Live Patching 12 SP5 | All versions | 2-2.2 |
kernel-livepatch-SLE15_Update_30 SUSE:Linux Enterprise Live Patching 15 | All versions | 5-150000.2.2 |
kernel-livepatch-SLE15_Update_31 SUSE:Linux Enterprise Live Patching 15 | All versions | 3-150000.2.2 |
kernel-livepatch-SLE15_Update_32 SUSE:Linux Enterprise Live Patching 15 | All versions | 3-150000.2.2 |
kernel-livepatch-SLE15-SP4_Update_2 SUSE:Linux Enterprise Live Patching 15 SP4 | All versions | 3-150400.2.2 |
Products include Debian Debian Linux, Linux kernel.
How do I fix CVE-2022-39188?
Apply the vendor's patch.
Is CVE-2022-39188 being exploited?
There is no known exploitation of CVE-2022-39188 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as AZL-10858, DEBIAN-CVE-2022-39188, GHSA-4qqj-hc3p-xwfg, OESA-2022-1968, SUSE-SU-2022:3346-1, SUSE-SU-2022:3362-1 and 4 more.