Answer in brief
CVE-2022-49220 records a Medium severity (CVSS 5.5) vulnerability in dax: make sure inodes are flushed before destroy cache. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 5.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=7b6be8444e0f0dd675b54d059793423d3c9b4c03 <770d42fff12d8595adda9025a0b92091f543e775 || >=7b6be8444e0f0dd675b54d059793423d3c9b4c03 <ec376f5c11c88c0215d173599db8449cd4196759 || >=7b6be8444e0f0dd675b54d059793423d3c9b4c03 <e2951eaa9398415ac054b7bd80b8163b6838ead4 || >=7b6be8444e0f0dd675b54d059793423d3c9b4c03 <f2a1e0eb70c2d954176c07d75d28742bde30e9f3 || >=7b6be8444e0f0dd675b54d059793423d3c9b4c03 <b786abe7c67c6ef71410c8e23292b3091d616ad1 || >=7b6be8444e0f0dd675b54d059793423d3c9b4c03 <a7e8de822e0b1979f08767c751f6c8a9c1d4ad86 | 770d42fff12d8595adda9025a0b92091f543e775, ec376f5c11c88c0215d173599db8449cd4196759, e2951eaa9398415ac054b7bd80b8163b6838ead4, f2a1e0eb70c2d954176c07d75d28742bde30e9f3, b786abe7c67c6ef71410c8e23292b3091d616ad1, a7e8de822e0b1979f08767c751f6c8a9c1d4ad86 |
| Linux/Linuxgeneric | 4.12 | Not reported |
Published upstream
Feb 26, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Nov 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Nov 5, 2026
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.
Quoted source text, attributed separately from HOL analysis.