// For flags

CVE-2022-49220

dax: make sure inodes are flushed before destroy cache

Time Line
Published
2024-03-19
Updated
2024-03-19
Firt exploit
2024-03-19
Overview
Descriptions (1)
MITRE
CWE (0)
CAPEC (-)
Risk
CVSS Score
-
SSVC
-
KEV
-
EPSS
Affected Products (-)
Vendors (1)
linux
Products (1)
linux_kernel
Versions (6)
>= 4.12 < 5.4.189, >= 4.12 < 5.10.110, >= 4.12 < 5.15.33, >= 4.12 < 5.16.19, >= 4.12 < 5.17.2, >= 4.12 < 5.18
Intel Resources (-)
Advisories (-)
-
Exploits (-)
-
Plugins (-)
-
References (7)
General (1)
kernel
Exploits & POcs (-)
Patches (6)
kernel
Advisories (-)
Summary
Descriptions

In the Linux kernel, the following vulnerability has been resolved: dax: make sure inodes are flushed before destroy cache A bug can be triggered by following command $ modprobe nd_pmem && modprobe -r nd_pmem [ 10.060014] BUG dax_cache (Not tainted): Objects remaining in dax_cache on __kmem_cache_shutdown()
[ 10.060938] Slab 0x0000000085b729ac objects=9 used=1 fp=0x000000004f5ae469 flags=0x200000000010200(slab|head|node)
[ 10.062433] Call Trace:
[ 10.062673] dump_stack_lvl+0x34/0x44
[ 10.062865] slab_err+0x90/0xd0
[ 10.063619] __kmem_cache_shutdown+0x13b/0x2f0
[ 10.063848] kmem_cache_destroy+0x4a/0x110
[ 10.064058] __x64_sys_delete_module+0x265/0x300 This is caused by dax_fs_exit() not flushing inodes before destroy cache.
To fix this issue, call rcu_barrier() before destroy cache.

*Credits: N/A
CVSS Scores
Attack Vector
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Attack Complexity
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Privileges Required
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User Interaction
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Scope
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Confidentiality
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Integrity
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Availability
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* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
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Automatable
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Tech. Impact
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* Organization's Worst-case Scenario
Timeline
  • 2025-02-26 CVE Reserved
  • 2025-02-26 CVE Published
  • 2025-02-26 CVE Updated
  • ---------- EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
CAPEC
Threat Intelligence Resources (0)
Security Advisory details:

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Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 4.12 < 5.4.189
Search vendor "Linux" for product "Linux Kernel" and version " >= 4.12 < 5.4.189"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 4.12 < 5.10.110
Search vendor "Linux" for product "Linux Kernel" and version " >= 4.12 < 5.10.110"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 4.12 < 5.15.33
Search vendor "Linux" for product "Linux Kernel" and version " >= 4.12 < 5.15.33"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 4.12 < 5.16.19
Search vendor "Linux" for product "Linux Kernel" and version " >= 4.12 < 5.16.19"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 4.12 < 5.17.2
Search vendor "Linux" for product "Linux Kernel" and version " >= 4.12 < 5.17.2"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 4.12 < 5.18
Search vendor "Linux" for product "Linux Kernel" and version " >= 4.12 < 5.18"
en
Affected